Sepioteuthis sepioidea Cornu aspersum Helix aspersa ) – распрострањена копнена животињаМекушци (Mollusca ) су водене, ређе копненеживотиње , са меким [лат.mollis = мекан] телом и љуштуром која га штити.[ 2]
билатерално су симетрични организми; тело им се састоји од: главе, утробне кесе, плашта, стопала и љуштуре; нервни систем је ганглионеран;крвни систем је отвореног типа;целом је слабо развијен и налази се само окосрца и полних жлезда; екскреција се врши метанефридијама, које крајње производеметаболизма из целома одводе у плаштану дупљу; дишу помоћушкрга [шкржни филаменти са трепљама],плућа или целом површином тела. Мекушци сураздео животиња с великим бројем врста и облика из групебескичмењака које се дели на деветкласа , од којих је осам постојећих и једанизумрли разред. Тело им је меко, несегментисано. На темељу савремених истраживањаДНК , данас се мекушци и неке друге групе животиња сврставају унатколено Lophotrochozoa фосилном облику познати су још из раздобљапрекамбријума .Наука која се бави мекушцима зове семалакологија (или малакозоологија).
Осим поларних регија и планина, мекушци настањују сва подручја наземљи . Већина живи уморима , готово све групе живе маритимно. Неке врстешкољкаша могу се наћи и у слаткој води, а мањим делом чак и у влажној земљи (Pisidium spec. ). Но највећа група мекушаца,пужеви , насељавају сва остала подручја.
Шкољкаши су искључиво водени мекушци. Обухватају око 15.000 врста, од којих већина живи у мору. Тело је оклопљено са две љуштуре (десном и левом). Немају главу и слабо су покретљиви. Могу бити велики од неколико mm до 1 m. Најпознатије слатководне врсте су барска и речна, а од морских:каменице , дагње, бисерне шкољке итд. Значајне су групе мекушаца те се користе у људској исхрани.
Пужеви су мекушци којих има их око 85.000 врста. Они имају чврстукречњачку љуштуру. Сви копнени пужеви сухермафродити . Неке слатководне врсте коте живе младе. Користе се у људској исхрани. Пужеви голаћи наносе штету пољопривреди, а двобочна симетрија је знатно измјењена. Самооплодња је присутна само код неких пужева голаћа.
Главоношци су искључиво морски мекушци, тело им је симетрично, разликују се глава и труп а стопало је редуцирано. Глава је јасно одвојена од трупа. Напред се налазе уста. Према броју пипака подељени су на осмокраке (са 8 једнаких пипака) и десетокраке (са 8 једнаких и 2 велика крака). Веома су покретљиве животиње. У морима живи око 700 врста а најпознатије сусипе ,хоботнице илигње од којих неке нарасту и до 20 m укупне дужине. Главоношци имају истакнут економски значај.
Хитони су мала група морских мекушаца који се одликују неким од најпримитивнијих особина мекушаца. Углавном су распрострањени у топлим морима. Међу њима је најпознатији обични хитон. Немају економског значаја.
Речиmollusc mollusk су изведене из француске речиmollusque , која потиче одлатинске molluscus , одmollis Molluscus је била адаптацијаАристотелове τα μαλακά (ta malaká ), „мекане ствари“, коју је он користио засипе . Научно изучавање мекушаца се стога називамолакологијом .[ 3]
ИмеMolluscoida је раније кориштено за означавање поделе животињског царства која је садржалашкољке светиљке ,морске маховине , иплашташе , чланове три групе за које се сматрало да донекле подсећају на мекушце. Данас је познато да те групе нису сродне мекушцима, и да су веома мало међусобно сродне, те је имеMolluscoida напуштено.[ 4]
Најуниверзалнија својство телесне структуре мекушаца јемантија са знатним отвором који се користи задисање иизлучивање , и организација нервног система. Многи имају кречњачке шкољке.[ 5]
Мекушци су развили веома велики број различитих телесних структура да је тешко да се нађусинапоморфи (дефинишуће карактеристике) који важе за све модерне групе.[ 6] [ 7] [ 8] [ 9]
Лежни део телесног зида јемантија (илиpallium ) којиизлучују кречњачке спикуле, плоча или шкољка. Њом се обавија тело оставњајући довољно слободног простора. Отвориануса игениталија су у мантионој шупљини. Постоје два пара главнихнервних нити .[ 9] Остале карактеристике које се обично појављују у уџбеницима имају значајне изузетке:
Присуство карактеристика покласама мекушаца Карактеристике мекушаца[ 8] Aplacophora [ 10] Polyplacophora [ 11] Monoplacophora [ 12] Gastropoda [ 13] Cephalopoda [ 14] Bivalvia [ 15] Scaphopoda [ 16] Радула , назубљену хитинозну структуру у устимаОдсутна код 20%Neomeniomorpha Да Да Да Да Не Интерна, не може проширити изван тела Широко, мишићаво стопало Редуковано или одсутно Да Да Да Модификовано у руке Да Мало, само на фронталном крају Леђна концентрација унутрашњих органа (висцерална маса) Није очевидно Да Да Да Да Да Да Велико дигестивно слепо црево Није присутно код некихAplacophora Да Да Да Да Да Не Велики комплекснинефридијум („бубрези“) Ни један Да Да Да Да Да Мали, једноставан Један или више вентила / шкољке Примитивне форме, да; модерне форме, не Да Да Пужеви, да; пужеви голаћи, углавном да (интерни закржљали) Октопуси, не; сипа, наутилус, лигње, да Да Да Одонтофора Да Да Да Да Да Не Да
Око 80% свих познатих врста мекушаца супужеви (са и без љуске), укључујући овог из породицеCypraeidae [ 17] Процене броја описаних живућих врста мекушаца варирају од 50.000 до максимално 120.000 врста.[ 1] слатководни гастроподи и 35.000копнени . Шкољке би сачињавале око 14% тог тотала, а других пет класа мање од 2% живућих мекушаца.[ 18] [ 1] Haszprunar је 2001. проценио да има око 93.000 именованих врста,[ 19] [ 20] зглавкаре по броју живих животињских врста[ 17] хордата са 52.000.[ 21] [ 1] [ 22] [ 8] [ 23]
Мекушци имају разноврсније облике од било којег другог животињскограздела . Они обухватајупужеве , пужеве голаће и друге гастроподе; многе врстешкољки ;лигње и другеглавоношце ; и низ других мање познатих мада особиних подгрупа. Већина врста живи у океанима, од морских обала доабисалне зоне , док су неке формезнатан део слатководне фауне и копненихекосистема . Мекушци су екстремно разноврсни утропским иумереним регионима, иако се могу наћи на свимлатитудама .[ 6] [ 17] Главоношци као што сулигње ,сипе , иоктопуси су међунеуролошки најнапреднијим бескичмењацима.[ 24] Гигантска лигња , која донедавно није проучавана жива у свом одраслом облику,[ 25] бескичмењака , мада је недавно ухваћени примеракколосалне лигње , 10 m дугачак и тежак 500 kg, вероватно већи.[ 26]
Слатководни и копнени мекушци су изузетно подложни изумирању. Процењује се да број ових мекушаца знатно варира, делом зато што многе регије нису биле детаљно испитане. Постоји и недостатак стручњака који могу да идентификују све животиње на било којем подручју према врстама. Године 2004,Црвена листа IUCN угрожених врста је обухватала скоро 2.000 угрожених немаринских мекушаца. У контрасту с тим, већина врста мекушаца је морска, а само се 41 од њих се појавила на црвеној листи те године. Око 42% од забележених изумирања од 1500. године су мекушци, и они су скоро у потпуности немаринске врсте.[ 27]
Глава је више или мање јасно одвојена од тела и на њој се налазе чула (пар тентакула – пипака са оцелама – простим очима) и усни отвор. У усном отвору је радула (треница), која је грађена одзубића за уситњавање хране. Иза усног отвора јеждрело , које се даље наставља на једњак, средње црево у које се улива пар жлезда –јетра црево , које сеаналним отвором излива у плаштану дупљу. Црево је смештено у утробној кеси која се налази на леђној, задњој страни тела. Плашт је кожни набор који обавија утробну кесу и затвара плаштану дупљу. У тој дупљи су шкрге, анални отвор и отвори метанефридија и полних одвода. На трбушној страни тела налази се стопало које служи за кретање. Плашт лучи љуштуру која потпуно или делимично препокрива тело. Сви ови делови тела могу да код различитих класа мекушаца буду измењени, а неки могу и да недостају.
Крвни систем ја отворен што значи да се крв излива у шупљине и лакуне окооргана , односно да не постојикапиларна размена материја. Крв (хемолимфа) из шкрга доспева у преткоморе срца, а из њих у комору. Из коморе полазиаорта која крв разноси до шупљина и лакуна око органа и ткива, одакле се артеријама доводи поново у шкрге. Тако кроз срце пролази само оксигенисана крв.
Нервни систем је ганглионаран, чини га неколико пари ганглија: главене, стопаоне, бочне (налазе се бочно од црева) и утробне. Све ганглије су међусобно повезане и од њих полазе нерви за све органе.
Респирацију обављају шкргама (ктенидијама) које се налазе у плаштаној дупљи. Вода улази у плаштану дупљу захваљујући раду трепљи на шкржним филаментима, а по обављеној разменигасова излази кроз излазнисифон у спољашњу средину. Копнени мекушци дишу преко унутрашње површине плаштане дупље која садржи мрежукрвних судова .
Полне жлезде смештене су у утробној кеси у целому, са одводима до плаштане дупље. Код неких представника мекушаца заступљен јехермафродитизам .
У оквиру типа мекушаца срећемо се са врло познатим и честим облицима који су данас сврстани у класе:
Abronicidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl and Picton, 2017 Abyssochrysidae Tomlin, 1927 Acanthochitonidae Pilsbry, 1893 Acanthomeniidae Acavidae Pilsbry, 1895 Achatinellidae Gulick, 1873 Achatinidae Swainson, 1840 Aciculidae Gray, 1850 Aclididae G. O. Sars, 1878 Acmaeidae Forbes, 1850 Acochlidiidae Küthe, 1935 Acroloxidae Thiele, 1931 Acteonidae d'Orbigny, 1843 Actinocyclidae O'Donoghue, 1929 Addisoniidae Dall, 1882 Aegiridae P. Fischer, 1883 Aeolidiidae Gray, 1827 Agardhiellidae Harl and Páll-Gergely, 2017 Aglajidae Pilsbry, 1895 Agriolimacidae H. Wagner, 1935 Aillyidae H. B. Baker, 1955 Aitengidae Swennen and Buatip, 2009 Akeridae Mazzarelli, 1891 Akiodorididae Millen and Martynov, 2005 Alacuppidae Oskars, Bouchet and Malaquias, 2015 Alloposidae Verrill, 1881 Amastridae Pilsbry, 1910 Amathinidae Ponder, 1987 Amnicolidae Tryon, 1863 Amphibolidae Gray, 1840 Amphibulimidae P. Fischer, 1873 Amphimeniidae Salvini-Plawen, 1972 Amphitretidae Hoyle, 1886 Ampullariidae Gray, 1824 Ampullinidae Cossmann, 1919 Anabathridae Keen, 1971 Anadenidae Pilsbry, 1948 Anatinellidae Deshayes, 1853 Anatomidae McLean, 1989 Ancillariidae Swainson, 1840 Ancistrocheiridae Pfeffer, 1912 Angariidae Gray, 1857 Annulariidae Henderson and Bartsch, 1920 Anomiidae Rafinesque, 1815 Anulidentaliidae Chistikov, 1975 Apataidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl and Picton, 2017 Aplustridae Gray, 1847 Aplysiidae Lamarck, 1809 Aporrhaidae Gray, 1850 Architectonicidae Gray, 1850 Architeuthidae Pfeffer, 1900 Arcidae Lamarck, 1809 Arcticidae Newton, 1891 Areneidae McLean, 2012 Argnidae Hudec, 1965 Argonautidae Tryon, 1879 Ariolimacidae Pilsbry and Vanatta, 1898 Arionidae Gray, 1840 Ariophantidae Godwin-Austen, 1888 Arminidae Iredale and O'Donoghue, 1923 Asperspinidae Rankin, 1979 Assimineidae H. Adams and A. Adams, 1856 Astartidae d'Orbigny, 1844 Athoracophoridae P. Fischer, 1883 Atlantidae Rang, 1829 Azecidae Watson, 1920 Babakinidae Roller, 1973 Baltodentaliidae Barleeiidae Gray, 1857 Basterotiidae Cossmann, 1909 Bathydorididae Bergh, 1891 Bathyhedylidae Neusser, Jörger, Lodde-Bensch, Strong and Schrödl, 2016 Bathyphytophilidae Moskalev, 1978 Bathysciadiidae Dautzenberg and H. Fischer, 1900 Bathyteuthidae Pfeffer, 1900 Batillariidae Thiele, 1929 Batoteuthidae Young and Roper, 1968 Bellolividae Kantor, Fedosov, Puillandre, Bonillo and Bouchet, 2017 Belomitridae Kantor, Puillandre, Rivasseau and Bouchet, 2012 Benthobiidae Kantor, Fedosov, Puillandre, Bonillo and Bouchet, 2017 Binneyidae Cockerell, 1891 Bithyniidae Gray, 1857 Boettgerillidae Wiktor and I. M. Likharev, 1979 Bolitaenidae Chun, 1911 Bornellidae Bergh, 1874 Borsoniidae Bellardi, 1875 Bothriembryontidae Iredale, 1937 Bouchetispiridae Kantor, Strong and Puillandre, 2012 Brachioteuthidae Pfeffer, 1908 Buccinidae Rafinesque, 1815 Bulimulidae Tryon, 1867 Bullidae Gray, 1827 Burnupiidae Albrecht in Bouchet et al., 2017 Bursidae Thiele, 1925 Bythinellidae Locard, 1893 Cadlinidae Bergh, 1891 Caecidae Gray, 1850 Calliodentaliidae Chistikov, 1975 Calliostomatidae Thiele, 1924 Calmidae Iredale and O'Donoghue, 1923 Calopiidae Ponder, 1999 Calycidorididae Roginskaya, 1972 Calyptraeidae Lamarck, 1809 Camaenidae Pilsbry, 1895 Campanilidae Douvillé, 1904 Canariellidae Schileyko, 1991 Cancellariidae Forbes and Hanley, 1851 Capulidae Fleming, 1822 Cardiidae Lamarck, 1809 Cardilidae P. Fischer, 1887 Cardiniidae Zittel, 1881 Carditidae Férussac, 1822 Carinariidae Blainville, 1818 Caryodidae Conolly, 1915 Cassidae Latreille, 1825 Cataegidae McLean and Quinn, 1987 Cavoliniidae Gray, 1850 Caymanabyssiidae B. A. Marshall, 1986 Cepolidae Ihering, 1909 Cerastidae Wenz, 1923 Cerionidae Pilsbry, 1901 Cerithiidae J. Fleming, 1822 Cerithiopsidae H. Adams and A. Adams, 1853 Cetoconchidae Ridewood, 1903 Chaetodermatidae Ihering, 1876 Chamidae Lamarck, 1809 Charitodoronidae Fedosov, Herrmann, Kantor and Bouchet, 2018 Charoniidae Powell, 1933 Charopidae Hutton, 1884 Chilinidae Dall, 1870 Chilodontaidae Wenz, 1938 Chiroteuthidae Gray, 1849 Chitonidae Rafinesque, 1815 Chondrinidae Steenberg, 1925 Choriplacidae Ashby, 1928 Choristellidae Bouchet and Warén, 1979 Chromodorididae Bergh, 1891 Chronidae Thiele, 1931 Chtenopterygidae Allan, 1945 Cimidae Warén, 1993 Cingulopsidae Fretter and Patil, 1958 Cirroteuthidae Keferstein, 1866 Clathurellidae H. Adams and A. Adams, 1858 Clausiliidae Gray, 1855 Clavagellidae d'Orbigny, 1844 Clavatoridae Thiele, 1926 Clavatulidae Gray, 1853 Cleidothaeridae Hedley, 1918 Clenchiellidae D. W. Taylor, 1966 Clionidae Rafinesque, 1815 Cliopsidae O. G. Costa, 1873 Cocculinellidae Moskalev, 1971 Cocculinidae Dall, 1882 Cochlespiridae Powell, 1942 Cochlicopidae Pilsbry, 1900 Cochliopidae Tryon, 1866 Coelociontidae Iredale, 1937 Colinatydidae Oskars, Bouchet and Malaquias, 2015 Colloniidae Cossmann, 1917 Colpodaspididae Oskars, Bouchet and Malaquias, 2015 Colubrariidae Dall, 1904 Columbariidae Tomlin, 1928 Columbellidae Swainson, 1840 Condylocardiidae F. Bernard, 1897 Conidae Fleming, 1822 Conorbidae de Gregorio, 1880 Conradiidae Golikov and Starobogatov, 1987 Corambidae Bergh, 1871 Corbulidae Lamarck, 1818 Corillidae Pilsbry, 1905 Cornirostridae Ponder, 1990 Coryphellidae Bergh, 1889 Costasiellidae K. B. Clark, 1984 Costellariidae MacDonald, 1860 Cranchiidae Prosch, 1847 Craspedopomatidae Kobelt and Möllendorff, 1898 Crassatellidae Férussac, 1822 Creseidae Rampal, 1973 Cryptoplacidae H. Adams and A. Adams, 1958 Cucullaeidae Stewart, 1930 Cumanotidae Odhner, 1907 Curnonidae d'Udekem d'Acoz, 2017 Cuspidariidae Dall, 1886 Cuthonellidae M. C. Miller, 1977 Cuthonidae Odhner, 1934 Cyamiidae Philippi, 1845 Cyclochlamydidae Cyclophoridae Gray, 1847 Cycloteuthidae Naef, 1923 Cylichnidae H. Adams and A. Adams, 1854 Cylindrobullidae Thiele, 1931 Cymatiidae Iredale, 1913 Cymbuliidae Gray, 1840 Cypraeidae Rafinesque, 1815 Cyrenidae Gray, 1840 Cyrenoididae H. and A. Adams, 1857 Cystiscidae Stimpson, 1865 Cystopeltidae Cockerell, 1891 Dendrodorididae O'Donoghue, 1924 Dendronotidae Allman, 1845 Dentaliidae Children, 1834 Desmopteridae Chun, 1889 Dialidae Kay, 1979 Diaphanidae Odhner, 1914 Diapheridae Panha and Naggs, 2010 Diastomatidae Cossmann, 1894 Dimyidae P. Fischer, 1886 Diplommatinidae L. Pfeiffer, 1857 Dironidae Eliot, 1910 Discidae Thiele, 1931 Discodorididae Bergh, 1891 Donacidae J. Fleming, 1828 Dondersiidae Dorcasiidae Connolly, 1915 Dorididae Rafinesque, 1815 Doridomorphidae Er. Marcus and Ev. Marcus, 1960 Doridoxidae Bergh, 1899 Dotidae Gray, 1853 Draparnaudiidae Solem, 1962 Dreissenidae Gray, 1840 Drepanomeniidae Salvini-Plawen, 1978 Drilliidae Olsson, 1964 Dyakiidae Gude and B. B. Woodward, 1921 Eatoniellidae Ponder, 1965 Echinichidae F. G. Thompson and Naranjo-Garcia, 2012 Elachisinidae Ponder, 1985 Ellobiidae L. Pfeiffer, 1854 Elonidae Gittenberger, 1977 Emblandidae Ponder, 1985 Embletoniidae Pruvot-Fol, 1954 Emmericiidae Brusina, 1870 Endodontidae Pilsbry, 1895 Enidae B. B. Woodward, 1903 Enoploteuthidae Pfeffer, 1900 Entalinidae Chistikov, 1979 Entoliidae Teppner, 1922 Eoacmaeidae Eoscaphandridae Chaban and Kijashko, 2016 Epigridae Ponder, 1985 Epimeniidae Epirobiidae F. G. Thompson, 2012 Epitoniidae Berry, 1910 Eratoidae Gill, 1871 Etheriidae Deshayes, 1832 Eubranchidae Odhner, 1934 Eucalodiidae P. Fischer and Crosse, 1873 Euciroidae Dall, 1895 Euconulidae H. B. Baker, 1928 Eucyclidae Koken, 1896 Eudaroniidae Gründel, 2004 Eulimidae Philippi, 1853 Facelinidae Bergh, 1889 Falsicingulidae Slavoshevskaya, 1975 Fasciolariidae Gray, 1853 Fauxulidae Harl and Páll-Gergely, 2017 Ferussaciidae Bourguignat, 1883 Ficidae Meek, 1864 Fionidae Gray, 1857 Fissurellidae Fleming, 1822 Flabellinidae Bergh, 1889 Flabellinopsidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl and Picton, 2017 Fusiturridae Abdelkrim, Aznar-Cormano, Fedosov, Kantor, Lozouet, Phuong, Zaharias and Puillandre, 2018 Fustiariidae Steiner, 1991 Gadilidae Stoliczka, 1868 Gadilinidae Chistikov, 1975 Gaimardiidae Hedley, 1916 Galatheavalvidae Knudsen, 1970 Galeommatidae Gray, 1840 Gastrochaenidae Gray, 1840 Gastrocoptidae Pilsbry, 1918 Gastrodontidae Tryon, 1866 Gastropteridae Swainson, 1840 Geomitridae C. Boettger, 1909 Glacidorbidae Ponder, 1986 Glaucidae Gray, 1827 Glauconomidae Gray, 1853 Globocornidae Espinosa and Ortea, 2010 Glossidae Gray, 1847 Glycymerididae Dall, 1908 Gonatidae Hoyle, 1886 Goniaeolididae Odhner, 1907 Goniodorididae H. Adams and A. Adams, 1854 Gryphaeidae Vyalov, 1936 Gymnomeniidae Haliotidae Rafinesque, 1815 Haloceratidae Warén and Bouchet, 1991 Halonymphidae Scarlato and Starobogatov, 1983 Haminoeidae Pilsbry, 1895 Hancockiidae MacFarland, 1923 Hanleyidae Bergenhayn, 1955 Haplotrematidae H. B. Baker, 1925 Harpidae Bronn, 1849 Hedylopsidae Odhner, 1952 Helicarionidae Bourguignat, 1877 Helicidae Rafinesque, 1815 Helicinidae Férussac, 1822 Helicodiscidae H. B. Baker, 1927 Helicodontidae Kobelt, 1904 Helicostoidae Pruvot-Fol, 1937 Hemidonacidae Hemimeniidae Hemisinidae P. Fischer and Crosse, 1891 Hermaeidae H. Adams and A. Adams, 1854 Heroidae Gray, 1857 Herteroherpiidae Hexabranchidae Bergh, 1891 Hiatellidae Gray, 1824 Hipponicidae Troschel, 1861 Histioteuthidae Verrill, 1881 Holospiridae Pilsbry, 1946 Horaiclavidae Bouchet, Kantor, Sysoev and Puillandre, 2011 Hyalogyrinidae Warén and Bouchet, 1993 Hydrobiidae Stimpson, 1865 Hydrocenidae Troschel, 1857 Hydrococcidae Thiele, 1928 Hydromylidae Pruvot-Fol, 1942 Hygromiidae Tryon, 1866 Hyriidae Swainson, 1840 Idioctopodidae Taki, 1962 Idiosepiidae Fischer, 1882 in 1880-1887 Ilbiidae Burn, 1963 Imeroherpiidae Iravadiidae Thiele, 1928 Iridinidae Swainson, 1840 Ischnochitonidae Dall, 1889 Isognomonidae Woodring, 1925 Isolimeidae Jenseneriidae Ortea and Moro, 2015 Joubiniteuthidae Naef, 1922 Juliidae E. A. Smith, 1885 Kelliellidae P. Fischer, 1887 Labyrinthidae Borrero, Sei, Robinson and Rosenberg in Sei et al., 2017 Laevidentaliidae Palmer, 1974 Laginiopsidae Pruvot-Fol, 1922 Lametilidae Laonidae Pruvot-Fol, 1954 Larocheidae Finlay, 1927 Lasaeidae Gray, 1842 Laternulidae Hedley, 1918 Latiidae Hutton, 1882 Laubierinidae Warén and Bouchet, 1990 Lauriidae Steenberg, 1925 Lemindidae Griffiths, 1985 Lepetellidae Dall, 1882 Lepetidae Gray, 1850 Lepetodrilidae McLean, 1988 Lepidomeniidae Lepidoteuthidae Naef, 1912 Leptochitonidae Dall, 1889 Limacidae Batsch, 1789 Limacinidae Gray, 1840 Limapontiidae Gray, 1847 Limidae Rafinesque, 1815 Limifossoridae Salvini-Plawen, 1968 Limopsidae Dall, 1895 Liotiidae Gray, 1850 Lironobidae Ponder, 1967 Lithoglyphidae Tryon, 1866 Litiopidae Gray, 1847 Littorinidae Children, 1834 Loliginidae Lesueur, 1821 Lomanotidae Bergh, 1890 Lottiidae Gray, 1840 Lucinidae Fleming, 1828 Lycoteuthidae Pfeffer, 1908 Lymnaeidae Rafinesque, 1815 Lyonsiellidae Dall, 1895 Lyonsiidae P. Fischer, 1887 Macellomeniidae Macrocyclidae Thiele, 1926 Mactridae Lamarck, 1809 Mactromyidae Cox, 1929 Madrellidae Preston, 1911 Maizaniidae Tielecke, 1940 Malleidae Lamarck, 1818 Malletiidae H. and A. Adams, 1858 Mandeliidae Valdés and Gosliner, 1999 Mangeliidae P. Fischer, 1883 Maningrididae Golding, Ponder and Byrne, 2007 Manzanellidae Chronic, 1952 Margaritidae Thiele, 1924 Margaritiferidae Henderson, 1929 Marginellidae Fleming, 1828 Marshallenidae Abdelkrim, Aznar-Cormano, Fedosov, Kantor, Lozouet, Phuong, Zaharias and Puillandre, 2018 Mastigoteuthidae Verrill, 1881 in 1880-1881 Mathildidae Dall, 1889 Megalomastomatidae Blanford, 1864 Megaspiridae Pilsbry, 1904 Megomphicidae H. B. Baker, 1930 Meiomeniidae Melanodrymiidae Salvini-Plawen and Steiner, 1995 Melanopsidae H. Adams and A. Adams, 1854 Melongenidae Gill, 1871 Mesodesmatidae Gray, 1839 Micractaeonidae Schileyko, 1999 Milacidae Ellis, 1926 Mitridae Swainson, 1931 Mitromorphidae Casey, 1904 Mnestiidae Oskars, Bouchet and Malaquias, 2015 Modulidae P. Fischer, 1884 Moitessieriidae Bourguignat, 1863 Mopaliidae Dall, 1889 Murchisonellidae Casey, 1904 Muricidae Rafinesque, 1815 Murmaniidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl and Picton, 2017 Mycetopodidae Gray, 1840 Myidae Lamarck, 1809 Myochamidae P. P. Carpenter, 1861 Myrrhinidae Bergh, 1905 Mytilidae Rafinesque, 1815 Nacellidae Thiele, 1891 Nassariidae Iredale, 1916 Naticidae Guilding, 1834 Nautilidae Blainville, 1825 Neilonellidae Schileyko, 1989 Neocyclotidae Kobelt and Möllendorff, 1897 Neolepetopsidae Neoleptonidae Thiele, 1934 Neomeniidae Ihering, 1876 Neomphalidae McLean, 1981 Neopilinidae Neoteuthidae Naef, 1921 Neritidae Rafinesque, 1815 Neritiliidae Schepman, 1908 Neritopsidae Gray, 1847 Newnesiidae Moles, Wägele, Schrödl and Avila, 2017 Newtoniellidae Korobkov, 1955 Noetiidae Stewart, 1930 Notaeolidiidae Eliot, 1910 Notobranchaeidae Pelseneer, 1886 Notomeniidae Nucinellidae Vokes, 1956 Nuculanidae H. and A. Adams, 1858 Nuculidae Gray, 1824 Octopodidae D'Orbigny, 1839-1842 in Férussac and D'Orbigny, 1834-1848 Octopoteuthidae Berry, 1912 Ocythoidae Gray, 1849 Odontocycladidae Hausdorf, 1996 Odontostomidae Pilsbry and Vanatta, 1898 Oleacinidae H. Adams and A. Adams, 1855 Olividae Latreille, 1825 Omalogyridae G. O. Sars, 1878 Ommastrephidae Steenstrup, 1857 Omniglyptidae Chistikov, 1975 Onchidiidae Rafinesque, 1815 Onchidorididae Gray, 1827 Onychoteuthidae Gray, 1847 Oopeltidae Cockerell, 1891 Opisthoteuthidae Verrill, 1896 Orbitestellidae Iredale, 1917 Orculidae Pilsbry, 1918 Oreohelicidae Pilsbry, 1939 Orthalicidae Martens, 1860 Osteopeltidae B. A. Marshall, 1987 Ostreidae Rafinesque, 1815 Otinidae H. Adams and A. Adams, 1855 Ovulidae Fleming, 1822 Oxychilidae Hesse, 1927 Oxynoidae Stoliczka, 1868 Pachychilidae P. Fischer and Crosse, 1892 Pagodulinidae Pilsbry, 1924 Paludomidae Stoliczka, 1868 Pandoridae Rafinesque, 1815 Papillodermatidae Wiktor, Martin and Castillejo, 1990 Paracoryphellidae M. C. Miller, 1971 Parallelodontidae Dall, 1898 Pararrhopaliidae Salvini-Plawen, 1978 Parhedylidae Thiele, 1931 Parmacellidae P. Fischer, 1856 Partulidae Pilsbry, 1900 Patellidae Rafinesque, 1815 Pectinidae Rafinesque, 1815 Pectinodontidae Pilsbry, 1891 Pediculariidae Gray, 1853 Peltospiridae McLean, 1989 Pelycidiidae Ponder and Hall, 1983 Pendromidae Warén, 1991 Penicillidae Gray, 1858 Peraclidae Tesch, 1913 Periplomatidae Dall, 1895 Personidae Gray, 1854 Petricolidae Deshayes, 1831 Phallomedusidae Golding, Ponder and Byrne, 2007 Pharidae H. and A. Adams, 1856 Phaseolidae Scarlato and Starobogatov, 1971 Phasianellidae Swainson, 1840 Phenacolepadidae Pilsbry, 1895 Philinidae Gray, 1850 Philinoglossidae Hertling, 1932 Philinorbidae Oskars, Bouchet and Malaquias, 2015 Philobryidae F. Bernard, 1897 Philomycidae Gray, 1847 Pholadidae Lamarck, 1809 Pholadomyidae King, 1844 Phyllidiidae Rafinesque, 1814 Phylliroidae Menke, 1830 Phyllomeniidae Physidae Fitzinger, 1833 Pickworthiidae Iredale, 1917 Pinnidae Leach, 1819 Pinufiidae Er. Marcus and Ev. Marcus, 1960 Pisaniidae Gray, 1857 Piseinotecidae Edmunds, 1970 Placunidae Rafinesque, 1815 Plakobranchidae Gray, 1840 Planaxidae Gray, 1850 Planorbidae Rafinesque, 1815 Platyhedylidae Salvini-Plawen, 1973 Plectopylidae Möllendorff, 1898 Plesiotrochidae Houbrick, 1990 Pleurobranchaeidae Pilsbry, 1896 Pleurobranchidae Gray, 1827 Pleuroceridae P. Fischer, 1885 Pleurodiscidae Wenz, 1923 Pleurodontidae Ihering, 1912 Pleurolidiidae Burn, 1966 Pleurotomariidae Swainson, 1840 Plicatulidae Gray, 1854 Pliopholygidae D. W. Taylor, 1966 Pneumodermatidae Latrielle, 1825 Polyceridae Alder and Hancock, 1845 Polygyridae Pilsbry, 1895 Pomatiidae Newton, 1891 Pomatiopsidae Stimpson, 1865 Poromyidae Dall, 1886 Potamididae H. Adams and A. Adams, 1854 Praenuculidae Mcalester, 1969 Pristilomatidae Cockerell, 1891 Prochaetodermatidae Salvini-Plawen, 1968 Proctonotidae Gray, 1853 Prodentaliidae Promachoteuthidae Naef, 1912 Proneomeniidae Propeamussiidae Abbott, 1954 Proserpinellidae H. B. Baker, 1923 Proserpinidae Gray, 1847 Protocuspidariidae Scarlato and Starobogatov, 1983 Provannidae Warén and Ponder, 1991 Psammobiidae J. Fleming, 1828 Pseudococculinidae Hickman, 1983 Pseudolividae de Gregorio, 1880 Pseudomelatomidae Morrison, 1966 Pseudovermidae Thiele, 1931 Pseudunelidae Rankin, 1979 Psychroteuthidae Thiele, 1920 Pteriidae Gray, 1847 Pterotracheidae Rafinesque, 1814 Ptychatractidae Stimpson, 1865 Pulsellidae Scarabino in Boss, 1982 Pulvinitidae Stephenson, 1941 Punctidae Morse, 1864 Pupillidae Turton, 1831 Pupinidae L. Pfeiffer, 1853 Pyramidellidae Gray, 1840 Pyramidulidae Kennard and B. B. Woodward, 1914 Pyramimitridae Cossmann, 1901 Pyropeltidae McLean and Haszprunar, 1987 Pyroteuthidae Pfeffer, 1912 Quijotidae Ortea, Moro and Bacallado, 2016 Ranellidae Gray, 1854 Raphitomidae Bellardi, 1875 Rastodentidae Ponder, 1966 Rathouisiidae Heude, 1885 Retusidae Thiele, 1925 Rhabdidae Chistikov, 1975 Rhipidoherpiidae Rhizoridae Dell, 1952 Rhodopidae Ihering, 1876 Rhopalomeniidae Salvini-Plawen, 1978 Rhytididae Pilsbry, 1893 Ringiculidae Philippi, 1853 Rissoellidae Gray, 1850 Rissoidae Gray, 1847 Rissoinidae Stimpson, 1865 Rostellariidae Gabb, 1868 Runcinidae H. Adams and A. Adams, 1854 Sagdidae Pilsbry, 1895 Samlidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl and Picton, 2017 Sandalomeniidae Sareptidae Stoliczka, 1870 Saxicavellidae Scaliolidae Jousseaume, 1912 Scaphandridae G. O. Sars, 1878 Schizochitonidae Dall, 1889 Scissurellidae Gray, 1847 Scolodontidae H. B. Baker, 1925 Sculptariidae Degner, 1923 Scyllaeidae Alder and Hancock, 1855 Seguenziidae Verrill, 1884 Semelidae Stoliczka, 1870 Semisulcospiridae Morrison, 1952 Sepiadariidae Fischer, 1882 in 1880-1887 Sepiidae Leach, 1817 Sepiolidae Leach, 1817 Seraphsidae Gray, 1853 Siliculidae Allen and Sanders, 1973 Siliquariidae Anton, 1838 Simpulopsidae Schileyko, 1999 Simrothiellidae Salvini-Plawen, 1978 Siphonariidae Gray, 1827 Skeneidae W. Clark, 1851 Skeneopsidae Iredale, 1915 Smeagolidae Climo, 1980 Solariellidae Powell, 1951 Solaropsidae H. Nordsieck, 1986 Solecurtidae d'Orbigny, 1846 Solemyidae Gray, 1840 Solenidae Lamarck, 1809 Spelaeoconchidae A. J. Wagner, 1928 Spelaeodiscidae Steenberg, 1925 Sphaeriidae Deshayes, 1855 Spheniopsidae Gardner, 1928 Sphincterochilidae Zilch, 1960 Spiraxidae H. B. Baker, 1939 Spirulidae Rafinesque, 1815 Spondylidae Gray, 1826 Sportellidae Dall, 1899 Staffordiidae Thiele, 1931 Stauroteuthidae Grimpe, 1916 Stenothyridae Tryon, 1866 Streptaxidae Gray, 1860 Strictispiridae McLean, 1971 Strobilopsidae Wenz, 1915 Strombidae Rafinesque, 1815 Strophocheilidae Pilsbry, 1902 Strophomeniidae Salvini-Plawen, 1978 Struthiolariidae Gabb, 1868 Succineidae Beck, 1837 Sutilizonidae McLean, 1989 Syngenoherpiidae Tantulidae Rankin, 1979 Tateidae Thiele, 1925 Tegulidae Kuroda, Habe and Oyama, 1971 Tellinidae Blainville, 1814 Terebridae Mörch, 1852 Teredinidae Rafinesque, 1815 Tergipedidae Bergh, 1889 Testacellidae Gray, 1840 Tethydidae Rafinesque, 1815 Thalassocyonidae F. Riedel, 1995 Thiaridae Gill, 1871 Thraciidae Stoliczka, 1870 Thyasiridae Dall, 1901 Thysanophoridae Pilsbry, 1926 Thysanoteuthidae Keferstein, 1866 Tindariidae Verrill and Bush, 1897 Titiscaniidae Bergh, 1890 Tjaernoeiidae Warén, 1991 Tonnidae Suter, 1913 Tornatinidae P. Fischer, 1883 Tornidae Sacco, 1896 Trapezidae Lamy, 1920 Tremoctopodidae Tryon, 1879 Trichodiscinidae H. Nordsieck, 1987 Trigoniidae Lamarck, 1819 Trigonochlamydidae Hesse, 1882 Trimusculidae J. Q. Burch, 1945 Trinchesiidae F. Nordsieck, 1972 Triphoridae Gray, 1847 Trissexodontidae H. Nordsieck, 1987 Tritoniidae Lamarck, 1809 Triviidae Trochel, 1863 Trochaclididae Thiele, 1928 Trochidae Rafinesque, 1815 Trochomorphidae Möllendorff, 1890 Truncatellidae Gray, 1840 Truncatellinidae Steenberg, 1925 Tryblidiidae Turbinellidae Swainson, 1835 Turbinidae Rafinesque, 1815 Turridae H. Adams and A. Adams, 1853 Turritellidae Lovén, 1847 Tylodinidae Gray, 1847 Umbraculidae Dall, 1889 Ungulinidae Gray, 1854 Unidentiidae Millen and Hermosillo, 2012 Unionidae Rafinesque, 1820 Urocoptidae Pilsbry, 1898 Urocyclidae Simroth, 1889 Valloniidae Morse, 1864 Valvatidae Gray, 1840 Vampyroteuthidae Thiele in Chun, 1915 Vanikoridae Gray, 1840 Velutinidae Gray, 1840 Veneridae Rafinesque, 1815 Vermetidae Rafinesque, 1815 Veronicellidae Gray, 1840 Verticordiidae Stoliczka, 1871 Vertiginidae Fitzinger, 1833 Vesicomyidae Dall and Simpson, 1901 Vitreledonellidae Robson, 1932 Vitrinidae Fitzinger, 1833 Viviparidae Gray, 1847 Volutidae Rafinesque, 1815 Volutomitridae Gray, 1854 Volvatellidae Pilsbry, 1895 Walvisteuthidae Nesis and Nikitina, 1986 Wemersoniellidae Scarabino, 1986 Xanthonychidae Strebel and Pfeffer, 1879 Xenophoridae Troschel, 1852 Xylodisculidae Warén, 1992 Xylophagaidae Yoldiidae Dall, 1908 Zachrysiidae Robinson, Sei and Rosenberg in Sei et al., 2017 Zebinidae Coan, 1964 Zerotulidae Warén and Hain, 1996 Zonitidae Mörch, 1864 Acmaeinae Forbes, 1850 Acremodontinae Alycaeinae Gray, 1850 Ambleminae Rafinesque, 1820 Angariinae Anodontitinae Modell, 1942 Aspathariinae Modell, 1942 Astraeinae Davies, 1933 Bathoxiphinae Chistikov, 1983 Bathypolypodinae Robson, 1929 Bellamyinae Rohrbach, 1937 Calliostomatinae Cataeginae Caymanabyssiinae Cochlostomatinae Kobelt, 1902 Cranchiinae Pfeffer, 1912 Cyclophorinae Diodorinae Diplommatininae L. Pfeiffer, 1857 Eledoninae Grimpe, 1921 Eleutheromeniinae Emarginulinae Entalininae Chistikov, 1979 Episiphoninae Chistikov, 1975 Fissurellidinae Fissurellinae Gadilinae Stoliczka, 1868 Gadilininae Chistikov, 1975 Gibbosulinae Bogan, Bolotov, Froufe & Lopes-Lima in Lopes-Lima et al., 2018 Gibbulinae Gonideinae Ortmann, 1916 Graneledoninae Voss, 1988 Halistylinae Halomeniinae Helicininae Férussac, 1822 Hendersoniinae H. B. Baker, 1926 Heteroschismoidinae Chistikov, 1982 Heteroteuthinae Appellöf, 1898 Homalopomatinae Hyriinae Swainson, 1840 Illicinae Pfeffer, 1912 Iridininae Swainson, 1840 Lampadioteuthinae Berry, 1916 Leilinae Morretes, 1949 Lioplacinae Gill, 1863 Liotiinae Lophomeniinae Lottiinae Gray, 1840 Lycoteuthinae Pfeffer, 1908 Margaritiferinae Henderson, 1929 Margaritinae Megaleledoninae Taki, 1961 Modellnaiinae Brandt, 1974 Monocondylaeinae Modell, 1942 Monodontinae Mycetopodinae Gray, 1840 Octopodinae Grimpe, 1921 Ommastrephinae Posselt, 1891 Oocorythinae P. Fischer, 1885 Pararrhopaliinae Parreysiinae Henderson, 1935 Patellinae Patelloidinae (Oliver, 1926) Planitrochinae Pollicariinae Pseudococculininae Pterocyclinae Pupinellinae Pupininae Rectidentinae Modell, 1942 Rossinae Appellöf, 1898 Sepiolinae Appellöf, 1898 Siphonodentaliinae Tryon, 1884 Spirostomatinae Taoniinae Pfeffer, 1912 Todarodinae Adam, 1960 Trochinae Turbininae Umboniinae Unioninae Rafinesque, 1820 Velesunioninae Iredale, 1934 Vianinae Viviparinae Gray, 1847 Acuticostini Starobogatov, 1967 Amblemini Rafinesque, 1820 Anodontini Rafinesque, 1820 Castaliini Morretes, 1949 Chamberlainiini Bogan, Froufe & Lopes-Lima in Lopes-Lima et al., 2017 Coelaturini Modell, 1942 Contradentini Modell, 1942 Ctenodesmini Pfeiffer, Zieritz, Rahim & Lopes-Lima in Zieritz et al., 2021 Gonideini Ortmann, 1916 Hyridellini McMichael, 1956 Hyriini Swainson, 1840 Indochinellini Bolotov, Pfeiffer, Vikhrev, & Konopleva in Bolotov et al., 2018 Lamellidentini Modell, 1942 Lamprotulini Modell, 1942 Lampsilini Ihering, 1901 Lanceolariini Froufe, Lopes-Lima & Bogan in Lopes-Lima et al., 2017 Leoparreysiini Vikhrev, Bolotov & Kondakov in Bolotov et al., 2017 Lepidodesmini Huang & Wu in Huang et al., 2019 Lottiini Gray, 1840 Parreysiini Henderson, 1935 Pleurobemini Hannibal, 1912 Popenaiadini Heard & Guckert, 1970 Pseudodontini Frierson, 1927 Quadrulini Ihering, 1901 Rectidentini Modell, 1942 Rhipidodontini Starobogatov, 1970 Schepmaniini Lopes-Lima, Pfeiffer & Zieritz in Zieritz et al., 2021 Unionini Rafinesque, 1820 Abra Lamarck, 1818 Abralia Gray, 1849 Abraliopsis Joubin, 1896 Acanthina Fischer de Waldheim, 1807 Acanthocardia J. E. Gray, 1851 Acanthochitona Gray, 1821 Acanthodoris Gray, 1850 Acanthonemia Thiele, 1913 Acanthopleura Guilding, 1829 Acanthotrophon Hertlein and Strong, 1951 Acar Gray, 1857 Acella Haldeman, 1841 Acesta H. and A. Adams, 1858 Acharax Dall, 1908 Achatina Lamarck, 1799 Achatinella Swainson, 1828 Acila H. Adams and A. Adams, 1858 Acirsa Morch, 1857 Aclis Loven, 1846 Aclistothyra McGinty, 1955 Acmaea Eschscholtz, 1833 Acostaea d'Orbigny, 1851 Acremodonta Marshall, 1983 Acroloxus Beck, 1837 Acroptycha Crosse and Fischer, 1877 Acteocina Gray, 1847 Acteon Montfort, 1810 Actinonaias Crosse & Fischer, 1894 Aculamprotula Wu, Liang, Wang & Ouyang, 1999 Acuticosta Simpson, 1900 Adalaria Bergh, 1879 Addisonia Dall, 1882 Adelopoma Doering, 1884 Adipicola Dautzenberg, 1927 Admete Moller, 1842 Adontorhina Berry, 1947 Adrana Adams and Adams, 1858 Adula H. Adams and A. Adams, 1857 Aegires Lovén, 1844 Aenigmabonus Moskalev, 1978 Aeolidia Cuvier, 1797 Aeolidiella Bergh, 1867 Aequipecten P. Fischer, 1886 Aesopus Gould, 1860 Aforia Dall, 1889 Afroditropus Bequaert and Clench, 1936 Afropomus Pilsbry and Bequaert, 1927 Agathodonta Cossmann, 1918 Agathotoma Cossmann, 1889 Agatrix R. Petit, 1967 Aglaja Renier, 1804 Agriopoma Dall, 1902 Akera O. F. Müller, 1776 Akiodoris Bergh, 1879 Alaba H. Adams and A. Adams, 1853 Alasmidonta Say, 1818 Alasminota Ortmann, 1914 Alathyria Iredale, 1934 Alcadia Gray, 1840 Alderia Allman, 1845 Aldisa Bergh, 1878 Alexandromenia Heath, 1911 Alexania Strand, 1928 Algamorda Dall, 1918 Alia H. Adams and A. Adams, 1853 Aligena I. Lea, 1843 Allogona Pilsbry, 1939 Allonautilus Ward and Saunders, 1997 Allopeas H. B. Baker, 1935 Alluroteuthis Odhner, 1923 Alvania Risso, 1826 Alycaeus Gray, 1850 Amaea H. Adams and A. Adams, 1854 Amauropsis Mörch, 1857 Amblema Rafinesque, 1820 Ameloctopus Norman, 1992 Americardia Stewart, 1930 Americhiton Watters, 1990 Amiantis Carpenter, 1884 Amicula Gray, 1847 Ammonicera Vayssiére, 1893 Ammonitella J. G. Cooper, 1868 Amnicola Gould and Haldeman, 1840 Amphicyclotus Crosse and Fischer, 1879 Amphigyra Pilsbry, 1906 Amphinemia Thiele, 1894 Amphiplica Haszprunar, 1988 Amphissa H. Adams and A. Adams, 1853 Amphithalamus Carpenter, 1864 Amphitretus Hoyle, 1885 Amuranodonta Moskvicheva, 1973 Amusium Roding, 1798 Amygdalum Megerle von Muhlfeld, 1811 Anabathron Frauenfeld, 1867 Anachis H. and A. Adams, 1853 Anacithara Hedley, 1922 Anadara Gray, 1847 Anadenulus Cockerell, 1890 Anamenia Nierstrasz, 1908 Anatina Schumacher, 1817 Anatinella G.B. Sowerby I in G.B. Sowerby I and J.C. Sowerby, 1833 Anatoma Fleming, 1828 Ancilla Lamarck, 1799 Ancistrobasis Dall, 1889 Ancistrocheirus Gray, 1849 Ancistrolepis Dall, 1894 Ancistroteuthis Gray, 1849 Ancotrema H. B. Baker, 1931 Ancula Loven, 1846 Ancylus O. F. Muller, 1774 Anemina Haas, 1969 Angaria Roeding, 1798 Anguispira E. S. Morse, 1864 Angustipes Colosi, 1922 Anidolyta Willan, 1987 Anisodonta Deshayes, 1858 Anisodoris Bergh, 1898 Annulipulsellum Scarabino, 1986 Anodonta Lamarck, 1799 Anodontia Link, 1807 Anodontites Bruguière, 1792 Anodontoides Simpson in F. C. Baker, 1898 Anomalocardia Schumacher, 1817 Anomia Linnaeus, 1758 Anostomella Von Martens, 1867 Antalis H. & A. Adams, 1854 Anticlimax Pilsbry and McGinty, 1946 Antillophos Woodring, 1928 Antiplanes Dall, 1902 Antisabia Iredale, 1937 Antisolarium Finlay, 1927 Antrobia Hubricht, 1971 Antrorbis Hershler and F. G. Thompson, 1990 Antroselates Hubricht, 1963 Anulidentalium Chistikov, 1975 Anulotaia Brandt, 1968 Anxietas Iredale, 1917 Aorotrema Schwengel and McGinty, 1942 Aperiovula Cate, 1973 Aperostoma Troschel, 1847 Aphaostracon F. G. Thompson, 1968 Aphelodoris von Ihering, 1886 Aphrodoctopus Roper and Mangold, 1992 Aplexa Fleming, 1820 Aplysia Linnaeus, 1767 Aplysiopsis Deshayes, 1835 Aporrhais da Costa, 1778 Appalachina Pilsbry, 1940 Aquilonaria Dall, 1886 Arca Linnaeus, 1758 Archaeomenia Thiele, 1906 Archecharax Thompson, 1980 Archidoris Bergh, 1878 Archiphysa Taylor, 2003 Architectonica Roding, 1798 Architeuthis Steenstrup, 1857 in Harting, 1860 Arcidens Simpson, 1900 Arcidopsis Simpson, 1900 Arcinella Schumacher, 1817 Arcopagia Leach in Brown, 1827 Arcopsis Von Koenen, 1885 Arctica Schumacher, 1817 Arctomelon Dall, 1915 Arcuatula Soot-Ryen, 1955 Arculus Monterosato, 1909 Arene H. Adams and A. Adams, 1854 Argonauta Linnaeus, 1758 Argopecten Monterosato, 1889 Arinia H. and A. Adams, 1856 Ariolimax Morch, 1859 Arion Ferussac, 1819 Armina Rafinesque, 1814 Arotonaias Martens, 1900 Asaphis Modeer, 1793 Ascobulla Ev. Marcus, 1972 Ashmunella Pilsbry and Cockerell, 1899 Asolene d'Orbigny, 1837 Aspatharia Bourguignat, 1885 Aspella Morch, 1877 Asperiscala de Boury, 1909 Assiminea Fleming, 1828 Astarte J. Sowerby, 1816 Astele Swainson, 1855 Asterophila Randall and Heath, 1912 Asthelys Quinn, 1987 Asthenothaerus Carpenter, 1864 Astraea Röding, 1798 Astralium Link, 1807 Astyris H. Adams and A. Adams, 1853 Atagema Gray, 1850 Athearnia Morrison, 1971 Atlanta Lesueur, 1817 Atlanticoncha Smith, Pfeiffer & Johnson, 2020 Atrina Gray, 1847 Attiliosa Emerson, 1968 Atys Montfort, 1810 Aulopoma Troschel, 1847 Austraeolis Burn, 1962 Austroneaera Powell, 1937 Austrorossia Berry, 1918 Austrotrophon Dall, 1902 Axelella Petit, 1988 Axinodon A. E. Verrill and Bush, 1898 Axinopsida Keen and Chavan, 1951 Axinulus A. E. Verrill and Bush, 1898 Babakina Roller, 1972 Babelomurex Coen, 1922 Bactrocythara Woodring, 1922 Baeolidia Bergh, 1888 Bailya M. Smith, 1944 Balcis Leach, 1847 Balconorbis Hershler and Longley, 1986 Balwantia Prashad, 1919 Bandabyssia Moskalev, 1976 Bankia Gray, 1842 Bankivia Beck In Krauss Baptodoris Bergh, 1884 Barbatia Gray, 1847 Barleeia Clark, 1853 Barnea Risso, 1826 Bartlettia H. Adams, 1867 Bartschia Rehder, 1943 Barynaias Crosse & Fischer, 1894 Basiliomya Bayer, 1971 Basilissa Watson, 1879 Basilissopsis Dautzenberg and Fischer, 1897 Basterotia Hoernes, 1859 Bathothauma Chun, 1906 Bathoxiphus Pilsbry & Sharp, 1897 Bathyarca Kobelt, 1891 Bathybela Kobelt, 1905 Bathybembix Crosse, 1893 Bathybuccinum Golikov and Sirenko, 1988 Bathycadulus Scarabino, 1995 Bathylepeta Moskalay, 1977 Bathypelta Moskalev, 1971 Bathyphytophilus Moskalev, 1978 Bathypolypus Grimpe, 1921 Bathysciadium Dautzenberf and Fischer, 1901 Bathyteuthis Hoyle, 1885 Bathytoma Harris and Burrows, 1891 Batillaria Benson, 1842 Batoteuthis Young and Roper, 1968 Bellardiella Tapparone-canefri, 1883 Bellaspira Conrad, 1868 Belonella Lane, 1957 Bentharca Verrill and Bush, 1898 Bentheledone Robson, 1932 Benthobia Dall, 1889 Benthoctopus Grimpe, 1921 Benthomangelia Thiele, 1925 Benthonella Dall, 1889 Benthonellania Dall, 1889 Berghia Trinchese, 1877 Beringiana Starobogatov in Zatravkin, 1983 Beringius Dall, 1886 Bermudaclis Bernardina Dall, 1910 Berryteuthis Naef, 1921 Berthelinia Gardiner, 1936 Berthella de Blainville, 1825 Berthellina Gardiner, 1936 Besla Dall and Bartsch, 1904 Bineurus Simpson, 1900 Binneya J. G. Cooper, 1863 Biomphalaria Preston, 1910 Birasoherpia Salvini-Plawen, 1978 Birgella F. C. Baker, 1926 Biserramenia Salvini-Plawen, 1967 Bithynia Leach, 1818 Bittiolum Cossmann, 1906 Bittium Gray, 1847 Blauneria Shuttleworth, 1854 Bolitaena Steenstrup, 1859 Bolma Risso, 1826 Bonus Moskalev, 1971 Boonea Robertson, 1978 Boreacola Bernard, 1979 Boreocingula Golikov and Kussakin, 1974 Boreoscala Boreotrophon Fischer, 1884 Bornella Bornia Philippi, 1836 Borsonella Dall, 1918 Bosellia Trinchese, 1891 Bostrychocentrum Botelloides Strand, 1928 Bothriopupa Pilsbry, 1898 Botula Mörch, 1853 Bourciera Pfeiffer, 1852 Brachidontes Swainson, 1840 Brachioteuthis Verrill, 1881 in 1880-1881 Brachycythara Woodring, 1928 Bractechlamys Iredale, 1939 Bradybaena Beck, 1837 Branchyostomia Brazzaea Bourguignat, 1885 Brevinucula Thiele, 1934 Broderipia Gray, 1847 Brookula Iredale, 1912 Buccinum Linnaeus, 1758 Buchanania Lesson, 1830 Buckleyia Higgins, 1872 Bufonaria Schumacher, 1817 Bulbus Brown, 1839 Buldowskia Moskvicheva, 1973 Bulimnaea Haldeman, 1841 Bulimulus Leach, 1814 Bulinus Müller, 1781 Bulla Linnaeus, 1758 Bullina Férussac, 1822 Burnupia Walker, 1912 Bursa Roding, 1798 Bursatella de Blainville, 1817 Bushia Dall, 1886 Busycon Röding, 1798 Busycotypus Wenz, 1943 Bythinella Moquin-Tandon, 1856 Cabestana Röding, 1798 Cadlina Bergh, 1878 Caducifer Dall, 1904 Cadulus Philippi, 1844 Caecum Fleming, 1813 Caelatura Conrad, 1853 Cahuillus Roth, 1996 Calaperostoma Pilsbry, 1935 Calidviana H. B. Baker, 1954 Calinaticina J. Q. Burch and Campbell, 1963 Caliphylla A. Costa, 1867 Callianella R. B. Newton, 1891 Calliobasis Marshall, 1983 Calliodentalium Habe, 1964 Calliostoma Swainson, 1840 Calliotropis Seguenza, 1903 Callista Poli, 1791 Callistochiton Dall, 1879 Callistoplax Dall, 1882 Callochiton Gray, 1847 Callonaia Simpson, 1900 Calloplax Thiele, 1909 Callumbonella Thiele, 1924 Calma Calotrophon Hertlien and Strong, 1951 Calybium Morelet, 1881 Calycidoris Abraham, 1876 Calyptoconcha Bouchet and Warén, 1993 Calyptogena Dall, 1891 Calyptraea Lamarck, 1799 Cambarunio Watters, 2018 Campeloma Rafinesque, 1819 Cancellaria Lamarck, 1799 Canculus Montfort, 1810 Candidula Kobelt, 1871 Cantharidus Montfort, 1810 Cantharus Roding, 1798 Caporbis Bartsch, 1915 Capulacmaea M. Sars, 1859 Capulus Montfort, 1810 Caracolus Montfort, 1810 Cardiapoda D'Orbigny, 1835 Cardiomya A. Adams, 1864 Cardita Bruguière, 1792 Carditamera Conrad, 1838 Carditella E. A. Smith, 1881 Carditopsis E. A. Smith, 1881 Cardium Linnaeus, 1758 Careliopsis Morch, 1875 Carenzia Quinn, 1983 Caribachlamys Waller, 1993 Carinacauda Leonard, Chichester, Richart and Young, 2011 Carinapex Carinaria Lamarck, 1801 Carinoturris Bartsch, 1944 Carychium O. F. Müller, 1773 Caryocorbula Bruguiere, 1792 Casmaria H. Adams and A. Adams, 1853 Cassis Scopoli, 1777 Castalia Lamarck, 1819 Castaliella Simpson, 1900 Cataegis Mclean and Quinn, 1987 Catinella Pease, 1870 Catriona Winckworth, 1941 Caudiculatus Simpson, 1900 Cavolinia Abildgaard, 1791 Caymanabyssia Moskalev, 1976 Cecilioides Férussac, 1814 Cecina A. Adams, 1861 Cellana H. Adams, 1869 Cenchritis von Martens, 1900 Cepaea Held, 1837 Cephalobranchia Bonnevie, 1913 Cerastoderma Poli, 1795 Ceratophyllidia Elliot, 1903 Ceratostoma Herrmannsen, 1846 Ceratozona Dall, 1882 Cerberilla Bergh, 1873 Ceres Gray, 1856 Cerion Röding, 1798 Cerithidea Swainson, 1840 Cerithidium Cerithiella Verrill, 1882 Cerithiopsida Bartsch, 1911 Cerithiopsidella Bartsch, 1911 Cerithiopsina Bartsch, 1911 Cerithiopsis Forbes and Hanley, 1851 Cerithium Bruguiere, 1789 Ceritoturris Cernuella Schluter, 1838 Cerodrillia Bartsch and Rehder, 1939 Cetoconcha Dall, 1889 Chaceia Turner, 1855 Chaenaxis Pilsbry and Ferriss, 1906 Chaetoderma Loven, 1844 Chaetopleura Shuttleworth, 1853 Chama Linnaeus, 1758 Chamaearionta Berry, 1930 Chamalycaeus Kobelt and Moellendroff, 1897 Chambardia Bourguignat in Servain, 1890 Chamberlainia Simpson, 1900 Chamelea Morch, 1853 Charisma Hedley, 1915 Charonia Gistel, 1848 Chauvetea Chauvetia Monterosato, 1884 Cheilea Modeer, 1793 Chelidonopsis Ancey, 1887 Chelidonura A. Adams, 1850 Chevroderma Scheltema, 1985 Chicomurex Arakawa, 1964 Chicoreus Montfort, 1810 Chione Megerle von Mühlfeld, 1811 Chionista Keen, 1958 Chiroteuthis D'Orbigny, 1841 Chistikovia Scarabino, 1995 Chiton Linnaeus, 1758 Chlamydoconcha Dall, 1884 Chlamylla Bergh, 1886 Chlamys Röding, 1798 Chondrocyclus Ancey, 1898 Chondropoma L. Pfeiffer, 1847 Choneplax Dall, 1882 Choriplax Pilsbry, 1894 Choristella Bush, 1897 Choristes Carpenter in Dawson, 1872 Choristodon Jonas, 1844 Chromodoris Alder and Hancock, 1855 Chrysallida Carpenter, 1857 Chrysostoma Swainson, 1840 Chtenopteryx Appellöf, 1890 Chunioteuthis Grimpe, 1916 Cidarina Dall, 1909 Cincinnatia Pilsbry, 1891 Cingula Fleming, 1828 Cingulina A. Adams, 1860 Cingulopsis Fretter and Patil, 1958 Cinysca Kilburn, 1970 Cionella Jeffreys, 1830 Cipangopaludina Hannibal, 1912 Circomphalus Klein, 1853 Circulus Jeffreys, 1865 Cirroteuthis Eschricht, 1836 Cirrothauma Chun, 1911 Cirsochilus Cossmann, 1888 Cirsonella Angas, 1877 Cirsotrema Morch, 1852 Cistopus Gray, 1849 Cittarium Philippi, 1847 Clappia Walker, 1909 Clathromangelia di Monterosato, 1884 Clathrus Clathurella Carpenter, 1857 Clausinella J. E. Gray, 1851 Clavus Montfort, 1810 Cleba Clinocardium Keen, 1936 Clinopegma Grant and Gale, 1931 Clio Linnaeus, 1767 Clione Pallas, 1774 Cliopsis Troschel, 1854 Clostophis Benson, 1860 Clypidina Gray, 1847 Coccocrater Haszpruner, 1987 Coccodentalium Sacco, 1896 Coccopigya Marshall, 1986 Cocculina Dall, 1882 Cocculinella Thiele, 1909 Cochlespira Conrad, 1865 Cochlicella Ferussac, 1820 Cochlicopa Férussac, 1821 Cochliolepis Stimpson, 1858 Cochliopa Stimpson, 1865 Cochliopina Morrison, 1946 Cochlodesma Couthouy, 1839 Cochlodinella Pilsbry and Vanatta, 1898 Cochlostoma Jan, 1830 Codakia Scopoli, 1777 Coelatura Conrad, 1853 Coelostemma Dall, 1895 Coleophysis Colga Bergh, 1880 Colligyrus Hershler, 1999 Collisella Dall, 1871 Colotrachelus Marshall, 1986 Colpodaspis M. Sars, 1870 Colubraria Schumacher, 1817 Columbarium Martens, 1881 Columbella Lamarck, 1799 Columbellopsis Bucquoy, Dautzenberg and Dollfus, 1882 Columella Westerlund, 1878 Colus Röding, 1798 Comarmondia Monterosato, 1884 Compressidens Pilsbry & Sharp, 1897 Compressidentalium Habe, 1963 Compsodrillia Woodring, 1928 Compsomyax Stewart, 1930 Conchocele Gabb, 1866 Congeria Partsch, 1835 Conjectura Finlay, 1926 Connexochiton Kaas, 1979 Conualevia Collier and Farmer, 1964 Conus Linnaeus, 1758 Cookia Lesson, 1832 Cooperella Carpenter, 1864 Copulabyssia Haszprunar, 1988 Coralliophaga de Blainville, 1824 Coralliophila H. Adams and A. Adams, 1853 Corambe Bergh, 1869 Corbicula Megerle von Mühlfeld, 1811 Corbula Bruguiere, 1797 Corolla Dall, 1871 Coronadoa Bartsch, 1946 Coryphella Gray, 1850 Cosa Finlay, 1926 Cosmetalepas Iredale, 1924 Cosmioconcha Dall, 1913 Cosmotriphora Olsson and Harbison, 1953 Costasiella Pruvoa-Fol, 1951 Costentalina Chistikov, 1982 Costoanachis Sacco, 1890 Couthouyella Bartsch, 1909 Cranchia Leach, 1817 Cranopsis A. Adams, 1860 Craspedochiton Shuttleworth, 1853 Craspedopoma Pfeiffer, 1847 Craspedotropis Blanford, 1864 Crassadoma Bernard, 1986 Crassatella Lamarck, 1799 Crassicardia Conrad, 1838 Crassinella Guppy, 1874 Crassispira Swainson, 1840 Crassostrea Sacco, 1897 Cratena Bergh, 1864 Creedonia Martins, 1996 Crenella T. Brown, 1827 Crenilabium Cossmann, 1889 Crepidula Lamarck, 1799 Crepipatella Lesson, 1831 Crepitacella Guppy, 1867 Creseis Rang, 1828 Crimora Alder and Hancock, 1855 Cristaria Schumacher, 1817 Crocidopoma Shuttleworth, 1857 Crockerella Hertlein and Strong, 1951 Crossata Jousseaume, 1881 Crossea A. Adams, 1865 Crosseola Iredale, 1924 Crossopoma Von Martens, 1891 Crucibulum Schumacher, 1817 Cryoturris Woodring, 1928 Cryptobranchia Middendorff, 1851 Cryptochiton Middendorff, 1847 Cryptoconchus Blainville in Burrow, 1815 Cryptomastix Pilsbry, 1939 Cryptomya Conrad, 1848 Cryptonatica Dall, 1892 Cryptopecten Dall, Bartsch and Rehder, 1938 Cryptoplax Blainville, 1818 Ctena Mörch, 1860 Ctenodesma Simpson, 1900 Cucullaea Lamarck, 1801 Cucumerunio Iredale, 1934 Cultellus Schumacher, 1817 Cumanotus Odhner, 1907 Cumberlandia Ortmann, 1912 Cumingia G. B. Sowerby I, 1833 Cuna Hedley, 1902 Cuneopsis Simpson, 1900 Curtitoma Bartsch, 1941 Cuspidaria Nardo, 1840 Cuthona Alder and Hancock, 1855 Cuvierina Boas, 1886 Cyathodonta Conrad, 1849 Cyathopoma Blanford, 1861 Cyclinella Dall, 1902 Cyclocardia Conrad, 1867 Cyclojamaicia Bartsch, 1942 Cyclonaias Pilsbry in Ortmann & Walker, 1922 Cyclopecten A. E. Verrill, 1897 Cyclophorus Montfort, 1810 Cyclopilsbrya Bartsch, 1942 Cycloryx Goodwin-austen, 1914 Cyclostrema Marryat, 1818 Cyclostremella Bush, 1897 Cyclostremiscus Pilsbry and Olsson, 1945 Cyclosurus Morelet, 1881 Cycloteuthis Joubin, 1919 Cyclothyca Stearns, 1891 Cyclotus Swainson, 1840 Cyclovendreysia Bartsch, 1942 Cyerce Bergh, 1870 Cylichna Loven, 1846 Cylichnella Cylichnium Dall, 1908 Cylindrobulla P. Fischer, 1857 Cymakra Gardner, 1937 Cymatioa Berry, 1964 Cymatium Roding, 1798 Cymatoica Dall, 1889 Cymatosyrinx Dall, 1889 Cymbovula Cate, 1974 Cymbulia Peron and Lesueur, 1810 Cyphoma Roding, 1798 Cypraea Linnaeus, 1758 Cypraecassis Stutchbury, 1837 Cyprogenia Agassiz, 1852 Cyrenoida Joannis, 1835 Cyrtodaria Reuss, 1801 Cyrtonaias Crosse & Fischer, 1894 Cyrtopleura Tryon, 1862 Cyrtotoma Moerch, 1852 Cystiscus Stimpson, 1865 Cythnia Carpenter, 1864 Cytora Kobelt and Moellendorff, 1897 Dacrydium Torell, 1859 Daedalochila Beck, 1837 Dalium Dall, 1889 Danilia Brusina, 1865 Daphnella Hinds, 1844 Daronia A. Adams, 1881 Dasyscias F. G. Thompson and Hershler, 1991 Decatopecten G. B. Sowerby II, 1839 Decipifus Olsson and McGinty, 1958 Decipula Jeffreys, 1881 Decoriatrivia Cate, 1979 Delectopecten Stewart, 1930 Delonovolva C. N. Cate, 1973 Delphinonaias Crosse & Fischer, 1894 Dendostrea Swainson, 1835 Dendrodoris Ehrenberg, 1831 Dendrofissurella Mclean and Kilburn, 1986 Dendronotus Alder and Hancock, 1845 Dendropoma Morch, 1861 Dentalium Linnaeus, 1758 Dentimargo Cossmann, 1899 Dentistyla Dall, 1889 Depressiscala de Boury, 1909 Dermatomya Dall, 1889 Dermomurex di Monterosato, 1890 Deroceras Rafinesque, 1820 Desmopterus Chun, 1889 Detracia Gray In Turton, 1840 Diacavolinia Van der Spoel, 1987 Diacria Gray, 1847 Diala A. Adams, 1861 Diancta Von Martens, 1867 Diaphana Brown, 1827 Diaphorodoris Iredale and O'Donoghue, 1923 Diastoma Deshayes, 1850 Diaulula Bergh, 1879 Diaurora Cockerell, 1903 Dicata Schmekel, 1967 Didianema Woodring, 1928 Digitaria S. Wood, 1853 Dillwynella Dall, 1889 Diloma Philippi, 1845 Dimya Roualt, 1848 Dimyella Moore, 1969 Dinocardium Dall, 1900 Dinomenia Nierstrasz, 1902 Dinoplax Dall, 1882 Diodora J. E. Gray, 1821 Dioryx Benson, 1859 Diplodon Spix & Wagner, 1827 Diplodonta Bronn, 1831 Diplodontites Marshall, 1922 Diplommatina Benson, 1849 Diplosolenodes Thome, 1976 Diplothyra Tryon, 1862 Dirona MacFarland, 1905 Dischides Jeffreys, 1867 Discodoris Bergh, 1877 Discomya Simpson, 1900 Disconaias Crosse & Fischer, 1894 Discotectonica Marwick, 1931 Discoteuthis Young and Roper, 1969 Discurria Lindberg, 1988 Discus Fitzinger, 1833 Distorsio Roding, 1798 Ditropis Blanford, 1869 Divalinga Chavan, 1951 Divaricella von Martens, 1880 Divariscintilla Powell, 1932 Dolabrifera Gray, 1847 Dolicholatirus Bellardi, 1884 Donax Linnaeus, 1758 Dondersia Hubrecht, 1888 Dondice Er. Marcus, 1958 Doridella Verrill, 1870 Doridium Meckel, 1809 Doridunculus G. O. Sars, 1878 Doriopsilla Bergh, 1880 Doris Linnaeus, 1758 Dorsopsis Thore, 1949 Dorymenia Heath, 1911 Dosidicus Steenstrup, 1857 Dosinia Scopoli, 1777 Doto Oken, 1815 Drechselia Joubin, 1931 Dreissena Beneden, 1835 Drepanomenia Heath, 1911 Drepanotrema Crosse and P. Fischer, 1880 Drillia Gray, 1838 Drilliola Locard, 1897 Driomenia Heath, 1911 Dromus Simpson, 1900 Drupa Röding, 1798 Drupinia Dall, 1923 Dryachloa F. G. Thompson and H. G. Lee, 1980 Drymaeus Albers, 1850 Echininus Clench and Abbott, 1942 Echinogurges Quinn, 1979 Echyridella McMichael & Hiscock, 1958 Ecrobia Stimpson, 1865 Egea Joubin, 1933 Elachisina Dall, 1918 Elachorbis Iredale, 1915 Elaeocyma Dall, 1918 Eledone Leach, 1817 Eledonella Verrill, 1884 Eleutheromenia Salvini-Plawen, 1967 Elgonocyclus Verdcourt, 1982 Elimia H. Adams and A. Adams, 1854 Ellipsaria Rafinesque, 1820 Elliptio Rafinesque, 1819 Elliptoideus Frierson, 1927 Ellobium Roding, 1798 Elongaria Haas, 1913 Elysia Risso, 1818 Emarcusia Roller, 1972 Emarginella Pilsbry, 1890 Emarginula Lamarck, 1801 Embletonia Alder and Hancock, 1851 Empleconia Dall, 1908 Enaeta H. Adams and A. Adams, 1853 Engina Gray, 1839 Engoniophos Woodring, 1929 Ennucula Iredale, 1931 Enoplochiton Gray, 1847 Enoploteuthis D'Orbigny in Rüppell, 1844 Ensidens Frierson, 1911 Ensis Schumacher, 1817 Ensitellops Olsson and Harbison, 1953 Entalina Monterosato, 1872 Entalinopsis Habe, 1957 Entemnotrochus Fischer, 1885 Enteroctopus Rochebrune and Mabille, 1889 Enteroxenos Bonnevie, 1902 Entocolax Voigt, 1888 Entoconcha J. Muller, 1852 Entodesma Phillips, 1845 Entovalva Voeltzkow, 1890 Eobania P. Hesse, 1913 Eogonatus Nesis, 1972 Epicynia Morch, 1875 Epilepton Dall, 1899 Epilucina Dall, 1901 Epimenia Nierstrasz, 1908 Epioblasma Rafinesque, 1831 Epirhabdoides Steiner, 1999 Episcynia Morch, 1875 Episiphon Pilsbry & Sharp, 1897 Epitonium Roding, 1798 Erato Risso, 1826 Eratoidea Weinkauff, 1879 Ercolania Trinchese, 1872 Eremarionta Pilsbry, 1913 Eremariontoides Miller, 1981 Eremopyrgus Hershler, 1999 Erginus Jeffreys, 1877 Erinna H. Adams and A. Adams, 1855 Erosaria Troschel, 1863 Ersilia di Monterosato, 1872 Ervilia Turton, 1822 Erycina Lamarck, 1805 Etheria Lamarck, 1807 Ethminolia Iredale, 1924 Euaxoctopus Voss, 1971 Eubela Dall, 1889 Eubranchus Forbes, 1838 Euchelus Philippi, 1847 Euchemotrema Archer, 1939 Euciroa Dall, 1881 Eucithara Eucleoteuthis Berry, 1916 Euconulus Reinhardt, 1883 Eucrassatella Iredale, 1924 Eudentalium Cotton & Godfrey, 1933 Eudolium Dall, 1889 Eudoxochiton Shuttleworth, 1853 Euglandina P. Fischer and Crosse, 1870 Eulima Risso, 1826 Eulimastoma Bartsch, 1904 Eulimella Gray, 1847 Eulimostraca Bartsch, 1917 Eulithidium Pilsbry, 1898 Eumetula Thiele, 1912 Eupera Bourguignat, 1854 Eupleura H. Adams and A. Adams, 1853 Euprymna Steenstrup, 1887 Eurynia Rafinesque, 1820 Euspira Agassiz in Sowerby, 1838 Eutrochaetella Fischer, 1885 Euvola Dall, 1898 Evalea A. Adams, 1860 Exilioidea Grant and Gale, 1931 Fabella Conrad, 1863 Facelina Alder and Hancock, 1855 Falcidens Salvini-Plawen, 1968 Falsicingula Habe, 1958 Falsimargarita Powell, 1951 Farcimen Troschel, 1847 Farcimoides Bartsch, 1942 Fargoa Robertson, 1978 Fartulum Carpenter, 1857 Fasciolaria Lamarck, 1799 Favartia Jousseaume, 1880 Favorinus M. E. Gray, 1850 Fedikovella Moskalev, 1976 Felaniella Felimare Fenimorea Ferreiraella Sirenko, 1988 Ferrissia Walker, 1903 Ficus Röding, 1798 Filopaludina Habe, 1964 Fimbria Megerle von Mühlfeld, 1811 Finella A. Adams, 1860 Fiona Alder and Hancock, 1851 Firoloida Lesueur, 1817 Fisherola Hannibal, 1912 Fissidentalium Fischer, 1885 Fissurella Bruguiere, 1789 Fissurellidea D'Orbigny, 1841 Fissurisepta Sequenza, 1863 Flabellina Voigt, 1834 Flabellinopsis MacFarland, 1966 Floridiscrobs Pilsbry and McGinty, 1949 Floridobia F. G. Thompson and Hershler, 2002 Fluminicola Stimpson, 1865 Fluxinella Marshall, 1983 Folinia Crosse, 1868 Fontigens Pilsbry, 1933 Forcepimenia Salvini-Plawen, 1968 Forreria Jousseaume, 1880 Fossarina A. Adams and Angas, 1864 Fossarus Philippi, 1841 Fossula Lea, 1870 Fowlerina Pelseneer, 1906 Fragum Roding, 1798 Friersonia Ortmann, 1912 Frigidoalvania Waren, 1974 Froekenia Hoyle, 1904 Fulmentum Fischer, 1884 Fumonelix Emberton, 1991 Fusconaia Simpson, 1900 Fusinus Rafinesque, 1815 Fusitriton Cossmann, 1903 Fusopsis Ravn, 1939 Fustiaria Stoliczka, 1868 Fusulculus Bouchet and Vermeij, 1997 Gabrielona Iredale, 1917 Gadila Gray, 1847 Gadilina Foresti, 1895 Gafrarium Roding, 1798 Galba Schrank, 1803 Galeomma Turton, 1825 Galiteuthis Joubin, 1898 Ganesa Jeffreys, 1883 Gari Schumacher, 1817 Gassiesia Clench, 1949 Gastrochaena Spengler, 1783 Gastrocopta Wollaston, 1878 Gastrodonta Albers, 1850 Gastropteron Kosse, 1813 Gastroptychia Kobelt and Moellendorff, 1900 Gaza Watson, 1879 Geitodoris Bergh, 1892 Gemma Deshayes, 1853 Gemmula Weinkauff, 1875 Genitoconia Salvini-Plawen, 1967 Geophorus Fischer, 1885 Georissa Blanford, 1884 Gephyroherpia Salvini-Plawen, 1978 Gerdiella Olsson and Bayer, 1972 Germainaia Graf & Cummings, 2009 Geukensia Van de Poel, 1959 Gibberula Swainson, 1840 Gibbosula Simpson, 1900 Gibbula Gillia Stimpson, 1865 Glans Megerle von Muhlfeld, 1811 Glaucus Forster, 1777 Gleba Forskal, 1776 Glebula Conrad, 1853 Gliabates Webb, 1959 Globivenus Coen, 1934 Glossocardia Stoliczka, 1870 Glossodoris Ehrenberg, 1831 Glycymeris E. M. da Costa, 1778 Glyphostoma Gabb, 1872 Glyphostomops Bartsch, 1934 Glyphoturris Woodring, 1928 Glyphyalinia von Martens, 1892 Glyptaesopus Pilsbry and Olsson, 1941 Glyptostoma Bland and W. G. Binney, 1873 Godiva Macnae, 1954 Gonatopsis Sasaki, 1920 Gonatoraphe Moellendorff, 1898 Gonatus Gray, 1849 Goniaeolis M. Sars, 1861 Gonidea Conrad, 1857 Goniodoris Forbes and Goodsir, 1939 Goodallia Turton, 1822 Gorgoleptis Mclean, 1988 Gouldia C. B. Adams, 1847 Granata Cotton, 1957 Grandidieria Bourguignat, 1885 Graneledone Joubin, 1918 Granotoma Bartsch, 1941 Granoturris Fargo, 1953 Granula Jousseaume, 1875 Granulina Jousseaume, 1888 Graphis Jeffreys, 1867 Graptacme Pilsbry & Sharp, 1897 Gregariella di Monterosato, 1884 Greilada Grimalditeuthis Joubin, 1898 Grimpella Robson, 1928 Grimpoteuthis Robson, 1932 Grippina Dall, 1912 Guildfordia Gray, 1850 Gundlachia Pfeiffer, 1849 Guppya Morch, 1867 Guttula Schepman, 1908 Gymnobela A. E. Verrill, 1884 Gymnomenia Odhner, 1919 Gymnotoplax Pilsbry, 1896 Gyraulus Agassiz, 1837 Gyrodes Conrad, 1860 Gyrotoma Shuttleworth, 1845 Haasica Strand, 1932 Haasodonta McMichael, 1956 Habevolutopsius Kantor, 1983 Hadroconus Quinn, 1987 Haedropleura Bucquoy, Dautzen., Dollfus, 1883 Hainesia Pfeiffer, 1856 Halgerda Bergh, 1880 Halicardia Dall, 1895 Haliella Haliotinella Souverbie, 1875 Haliotis Linnaeus, 1758 Haliphron Steenstrup, 1859 Haliris Dall, 1886 Halistrepta Dall, 1904 Halistylus Dall, 1890 Hallaxa Eliot, 1909 Haloceras Dall, 1889 Haloconcha Dall, 1886 Halodakra Olsson, 1961 Halomenia Heath, 1911 Haminoea Turton and Kingston, 1830 Hamiota Roe & Hartfield, 2005 Hancockia Gosse, 1877 Hanleya Gray, 1857 Hanleyella Sirenko, 1973 Hapalochlaena Robson, 1929 Haplocochlias Carpenter, 1864 Haplotrema Ancey, 1881 Hargravesia H. Adams, 1870 Harmandia Rochebrune, 1882 Harpagoherpia Salvini-Plawen, 1978 Hastula H. Adams and A. Adams, 1853 Haumea Dall, Bartsch, and Rehder, 1938 Haustellum Schumacher, 1817 Hawaiia Gude, 1911 Heathia Thiele, 1913 Heathimenia Salvini-Plawen, 1967 Hebetancylus Pilsbry, 1914 Hedleya Cox, 1892 Hedylopsis Thiele, 1931 Heilprinia Grabau, 1904 Helcion Dentfort, 1810 Heleobia Stimpson, 1865 Heleobops F. G. Thompson, 1968 Heliacus D'Orbigny, 1842 Helicella Férussac, 1821 Helicina Lamarck, 1799 Helicocranchia Massy, 1907 Helicodiscus E. S. Morse, 1864 Helicomorpha Moellendroff, 1890 Helisoma Swainson, 1840 Helix Linnaeus, 1758 Helminthoglypta Ancey, 1887 Helminthope Salvini-Plawen, 1991 Hemiarthrum Carpenter in Dall, 1876 Hemimenia Nierstrasz, 1902 Hemipoma Wagner, 1905 Hemistena Rafinesque, 1820 Hemitoma Swainson, 1840 Hemitrochus Swainson, 1840 Hemphillia Bland and W. G. Binney, 1872 Hendersonia A. J. Wagner, 1905 Hendersoniella Dall, 1905 Henrya Bartsch, 1927 Here Gabb, 1866 Hermaea Lovén, 1844 Hermaeopsis Da Costa, 1869 Hermissenda Bergh, 1879 Hero Herpeteros Berry, 1947 Herviera Hesperarion Simroth, 1891 Hespererato Schilder, 1932 Heteranomia Heterodonax Morch, 1853 Heterodoris Verrill and Emerton, 1882 Heteroherpia Salvini-Plawen, 1978 Heteroschismoides Ludbrook, 1960 Heteroteuthis Gray, 1849 Heudeia Crosse, 1885 Hexabranchus Hexaplex Perry, 1811 Hiatella Bosc, 1801 Hindsiclava Hertlein and Strong, 1955 Hinea Gray, 1847 Hinemoa Hinnites De France, 1821 Hipponix DeFrance, 1819 Histioteuthis D'Orbigny, 1842 in Férussac and D'Orbigny, 1834-1848 Hochbergellus Roth and W. B. Miller, 1992 Hojeda H. B. Baker, 1926 Holospira Martens, 1860 Holsingeria Hershler, 1989 Homalopoma Carpenter, 1864 Hopkinsia MacFarland, 1905 Horologica Laseron, 1956 Houbricka Wise, 1996 Hoyia F. C. Baker, 1926 Humboldtiana Ihering, 1892 Humilaria Grant and Gale, 1931 Hungerfordia Beddome, 1889 Huttonella L. Pfeiffer, 1856 Huxleyia A. Adams, 1860 Hyalina Schumacher, 1817 Hyalocylis de Folin, 1875 Hyalopecten Verrill, 1897 Hyaloteuthis Gray, 1849 Hybochelus Pilsbry, 1899 Hydatina Schumacher, 1817 Hydrobia Hartmann, 1821 Hydrocena Preiffer, 1841 Hydromyles Gistel, 1848 Hypermastus Pilsbry, 1899 Hypomenia Van Lummel, 1930 Hypselodoris Stimpson, 1855 Hyridella Swainson, 1840 Hyriopsis Conrad, 1853 Ichthyomenia Pilsbry, 1898 Idaholanx Clark, Campbell and Lydeard, 2017 Idasola Iredale, 1939 Idioctopus Taki, 1962 Idiopoma Pilsbry, 1901 Idiosepius Steenstrup, 1881 Idioteuthis Sasaki, 1916 Iheringella Pilsbry, 1893 Ilaira H. and A. Adams, 1854 Ilanga Herbert, 1987 Illex Steenstrup, 1880 Imeroherpia Salvini-Plawen, 1978 Incisura Hedley, 1904 Indochinella Bolotov, Pfeiffer, Vikhrev, & Konopleva in Bolotov et al., 2018 Indonaia Prashad, 1918 Indopseudodon Prashad, 1922 Inflectarius Pilsbry, 1940 Iniforis Jousseaume, 1884 Inioteuthis Verrill, 1881 in 1880-1881 Inodrillia Bartsch, 1943 Inversidens Haas, 1911 Inversiunio Habe, 1991 Io Lea, 1831 Iothia Forbes, 1849 Iphigenia Schumacher, 1817 Iphitus Jeffreys, 1883 Ipnobius Hershler, 2001 Iredalea Irenosyrinx Dall, 1908 Iridoteuthis Naef, 1912 Irus Schmidt, 1818 Irusella Hertlein and Grant, 1972 Isanda H. and A. Adams, 1854 Ischadium Jukes-Browne, 1905 Ischnochiton Gray, 1847 Ischnoplax Dall, 1879 Iselica Dall, 1918 Isognomon Lightfoot, 1786 Isomonia Dautzenberg and Fischer, 1896 Isorobitella Keen, 1962 Isselia Ithycythara Woodring, 1928 Ividella Dall and Bartsch, 1909 Ividia Dall and Bartsch, 1904 Janolus Bergh, 1884 Janthina Röding, 1798 Japelion Dall, 1916 Japetella Hoyle, 1885 Japonactaeon I. Taki, 1956 Japonia Gould, 1859 Jaspidella Olsson, 1956 Jorunna Bergh, 1876 Jouannetia Desmoulins, 1828 Joubiniteuthis Berry, 1920 Juga H. Adams and A. Adams, 1854 Jujubinus Monterosato, 1884 Juliacorbula Olsson and Harbison, 1953 Juturnia Hershler, Liu and Stockwell, 2002 Juvenichiton Sirenko, 1975 Kaiparapelta B. A. Marshall, 1986 Kaloplocamus Bergh, 1892 Katharina Gray, 1847 Kelletia P. Fischer, 1884 Kellia Turton, 1822 Kelliella M. Sars, 1870 Kermia Khairuloconcha Zieritz, Lopes-Lima & Pfeiffer in Zieritz et al., 2021 Kleinella A. Adams, 1860 Koloonella Kondakovia Filippova, 1972 Koreosolenaia Lee, Kim, Lopes-Lima & Bogan in Lopes-Lima et al., 2020 Kryptos Jeffreys, 1896 Kurilabyssia Moskalev, 1976 Kurtzia Bartsch, 1944 Kurtziella Dall, 1918 Kurtzina Bartsch, 1944 Kylix Dall, 1919 Labidoherpia Salvini-Plawen, 1978 Lacteoluna Pilsbry, 1926 Lacuna Turton, 1827 Laemodonta Philippi, 1846 Laevapex Walker, 1903 Laevicardium Swainson, 1840 Laevicaulis Simroth, 1913 Laevichlamys Waller, 1993 Laevicordia Sequenza, 1876 Laevidentalium Cossmann, 1888 Laeviemarginula Habe In Kuroda, 1953 Laevinesta Pilsbry and McGinty, 1952 Laevipilina McLean, 1979 Laila MacFarland, 1905 Lamellaria Montagu, 1815 Lamellaxis Strebel and Pfeffer, 1882 Lamellidens Simpson, 1900 Lamellidoris Adler and Hancock, 1855 Lamellitrochus Quinn, 1991 Lametila Lampadioteuthis Berry, 1916 Lampeia MacGinitie, 1959 Lamproscapha Swainson, 1840 Lamprotula Simpson, 1900 Lampsilis Rafinesque, 1820 Lanceolaria Conrad, 1853 Lanistes Montfort, 1810 Lanx Clessin, 1882 Laotia Saurin, 1953 Lapidaria Kang, 1986 Lapinura Er. Marcus and Ev. Marcus, 1970 Lasaea T. Brown, 1827 Lasmigona Rafinesque, 1831 Latiaxis Swainson, 1840 Latirus Montfort, 1810 Laurentiphysa Taylor, 2003 Leachia Lesueur, 1821 Learchis Bergh, 1896 Leaunio Watters, 2018 Ledella A. E. Verrill and Bush, 1897 Leguminaia Conrad, 1865 Lehmannia Heynemann, 1863 Leidyula H. B. Baker, 1925 Leila Gray, 1840 Leiomya A. Adams, 1864 Lemiox Rafinesque, 1831 Lens Simpson, 1900 Leoparreysia Vikhrev, Bolotov & Aksenova in Bolotov et al., 2017 Lepeta J. E. Gray, 1842 Lepetella Verrill, 1880 Lepetodrilus Mclean, 1988 Lepidochitona Gray, 1821 Lepidodesma Simpson, 1896 Lepidomenia Kowalevsky, 1883 Lepidopleurus Risso, 1826 Lepidoteuthis Joubin, 1895 Lepidozona Pilsbry, 1892 Leporimetis Iredale, 1930 Leptadrillia Woodring, 1928 Leptaxinus A. E. Verrill and Bush, 1898 Leptochiton Gray, 1847 Leptocollonia Powell, 1951 Leptogyra Bush, 1897 Lepton Turton, 1822 Leptopecten A. E. Verrill, 1897 Leptopoma Pfeiffer, 1847 Leptothyra Pease, 1869 Leptoxis Rafinesque, 1819 Lepyrium Pilsbry and Olsson, 1951 Leuconopsis Hutton, 1884 Leucophytia Leucorhynchia Crosse, 1867 Leucosyrinx Dall, 1889 Leucozonia Gray, 1847 Leurolepas J. H. McLean, 1970 Liaria Gray, 1852 Lienardia Ligumia Swainson, 1840 Liguriella Issel, 1908 Liguus Montfort, 1810 Lima Bruguiere, 1789 Limacia Limacina Bosc, 1817 Limalepta Moskalev, 1978 Limapontia Johnston, 1836 Limaria Link, 1807 Limatula S. V. Wood, 1839 Limax Linnaeus, 1758 Limea Bronn, 1831 Limifossor Heath, 1904 Limnoscapha Lindholm, 1932 Limopsis Sasso, 1827 Linatella Gray, 1857 Lindapecten Petuch, 1995 Linga De Gregorio, 1884 Linidiella Jousseaume, 1889 Linisa Pilsbry, 1930 Lioberus Dall, 1898 Liocranchia Pfeffer, 1884 Liocyma Dall, 1870 Liolophura Pilsbry, 1893 Liomesus Stimpson, 1865 Lioplax Troschel, 1857 Liostomia G. O. Sars, 1878 Liotia G. B. Sowerby I, 1834 Liotina Fischer, 1885 Lirabuccinum Vermeij, 1991 Liracyclotus Bartsch, 1942 Lirobarleeia Ponder, 1983 Lirobittium Bartsch, 1911 Lirophora Conrad, 1883 Lirularia Dall, 1909 Lischkeia Fischer, 1879 Lissodrillia Bartsch and Rehder, 1939 Lissotesta Iredale, 1915 Lissotestella Powell, 1948 Lithasia Haldeman, 1840 Lithoglyphus Pfeiffer, 1828 Lithophaga Roding, 1798 Lithopoma Gray, 1850 Litiopa Rang, 1829 Littoraria Griffith and Pidgeon, 1834 Littoridina Eydoux and Souleyet, 1852 Littoridinops Pilsbry, 1952 Littorina Ferussac, 1822 Lituiherpia Salvini-Plawen, 1978 Lobiger Krohn, 1847 Lobosculum Pilsbry, 1930 Loligo Lamarck, 1798 Loliolus Steenstrup, 1856 Lolliguncula Steenstrup, 1881 Lomanotus Verany, 1844 Lopha Roding, 1798 Lophocochlias Pilsbry, 1921 Lophodoris G. O. Sars, 1878 Lophomenia Heath, 1911 Lora Lorica H. Adams and A. Adams, 1852 Loricella Pilsbry, 1893 Loripes Poli, 1791 Lortiella Iredale, 1934 Lottia G. B. Sowerby I, 1834 Lucapina G. B. Sowerby II, 1835 Lucapinella Pilsbry, 1890 Lucidella Swainson, 1840 Lucina Lamarck, 1799 Lucinella Monterosato, 1883 Lucinisca Dall, 1901 Lucinoma Dall, 1901 Luizia Douvillé, 1933 Lunatia Gray, 1847 Lusitanops F. Nordsieck, 1968 Lussivolutopsius Kantor, 1983 Lutraria Lamarck, 1799 Luzonia Dall and E. A. Smith, 1890 Lycoteuthis Pfeffer, 1900 Lymnaea Lamarck, 1799 Lyogyrus Gill, 1863 Lyonsia Turton, 1822 Lyonsiella M. Sars, 1782 Lyratoherpia Salvini-Plawen, 1978 Lyrodus Binney, 1870 Lyropecten Conrad, 1862 Macellomenia Simroth, 1893 Macoma Leach, 1819 Macrarene Hertlein and Strong, 1951 Macrocallista Meek, 1876 Macrochisma Sowerby, 1839 Macrocypraea Schilder, 1930 Macromphalina Cossman, 1888 Macron H. Adams and A. Adams, 1853 Mactra Linnaeus, 1767 Mactrellona Mactromeris Conrad, 1868 Mactrotoma Dall, 1894 Madrella Alder and Hancock, 1864 Magadis Melville and Standen, 1899 Magnipelta Pilsbry, 1953 Maizania Bourguignat, 1889 Maizaniella Bequaert and Clench, 1836 Malanochlamys Malletia Desmoulins, 1832 Malleus Lamarck, 1799 Malluvium Melvill, 1909 Mancikellia Dall, 1899 Mangelia Risso, 1826 Manzonia Brusina, 1870 Mareleptopoma Moolenbeek and Faber, 1984 Margarites J. E. Gray, 1847 Margaritifera Schumacher, 1816 Margarya Neville, 1877 Marginella Lamarck, 1799 Maricopella Roth, 1996 Marinula P. P. King, 1832 Marionia Vayssiere, 1877 Marisa Gray, 1824 Marsenina Gray, 1850 Marseniopsis Bergh, 1886 Marshallora Bouchet, 1985 Marstonia Baker, 1926 Martensnaias Frierson, 1927 Martesia G. B. Sowerby I, 1824 Martialia Rochebrune and Mabille, 1889 Massya Pruvot-Fol, 1924 Mastigoteuthis Verrill, 1881 Mathilda Semper, 1865 Maxwellia Bailey, 1950 Mazatlania Dall, 1913 Medionidus Simpson, 1900 Medusafissurella Mclean and Kilburn, 1986 Megacrenella Habe and Ito, 1965 Megaentalina Habe, 1963 Megaleledone Taki, 1961 Megalocranchia Pfeffer, 1884 Megalomastoma Swainson, 1840 Megalomphalus Brusina, 1871 Megalonaias Utterback, 1915 Megapallifera Fairbanks, 1990 Megastraea J. H. McLean, 1970 Megasurcula Casey, 1904 Megatebennus Pilsbry, 1890 Megathura Pilsbry, 1890 Megayoldia A. E. Verrill and Bush, 1897 Megomphix H. B. Baker, 1930 Meiocardia H. and A. Adams, 1857 Meioherpia Salvini-Plawen, 1985 Meiomenia M. P. Morse, 1979 Mekongia Crosse and Fischer, 1876 Melampus Montfort, 1810 Melanella Bowdich, 1822 Melaniella L. Pfeiffer, 1857 Melanochlamys Cheesman, 1881 Melanoides Olivier, 1804 Melibe Rang, 1829 Melongena Schumacher, 1817 Meloscaphander Mendicula Iredale, 1924 Menestho Moller, 1842 Menetus H. Adams and A. Adams, 1855 Mercenaria Schumacher, 1817 Merelina Meromenia Leloup, 1949 Mesodesma Deshayes, 1832 Mesodon Rafinesque, 1821 Mesomphix Rafinesque, 1819 Mesonychoteuthis Robson, 1925 Mesopelex Marshall, 1986 Metachaetoderma Thiele, 1913 Metamenia Thiele, 1913 Metasepia Hoyle, 1885 Metastoma Strebel and Pfeffer, 1880 Metaxia di Monterosato, 1884 Metula H. Adams and A. Adams, 1853 Metzgeria Norman, 1879 Mexcyclotus Bartsch, 1942 Mexichromis Bertsch, 1977 Micranellum Micrarionta Ancey, 1880 Micraulax Theobald, 1876 Microceramus Pilsbry and Vanatta, 1898 Microcondylaea von Vest, 1866 Microdontia Tapparone Canefri, 1883 Microdrillia Casey, 1903 Microeulima Waren, 1992 Microgaza Dall, 1881 Microgloma Saunders and Allen, 1973 Microglyphis Dall, 1902 Microhedyle Hertling, 1930 Micromelo Pilsbry, 1895 Micromenetus F. C. Baker, 1945 Micromenia Leloup, 1948 Micronaias Simpson, 1900 Microphysula Cockerell, 1926 Microstelma A. Adams, 1863 Microtralia Dall, 1894 Microvoluta Angas, 1877 Middendorffinaia Moskvicheva & Starobogatov, 1973 Miesea Er. Marcus, 1961 Mikadotrochus Lindholm, 1927 Milax Gray, 1855 Milda Dall and Bartsch, 1904 Millerelix Pratt, 1981 Milneria Dall, 1881 Minolia A. Adams, 1860 Miodontiscus Dall, 1903 Mirachelus Woodring, 1928 Miraclathurella Woodring, 1928 Miralda A. Adams, 1864 Mitra Roding, 1798 Mitrella Risso, 1826 Mitrolumna Bucquoy, Dautzenberg and Dollfus, 1883 Mitromorpha Carpenter, 1865 Modellnaia Brandt, 1974 Modiolula Sacco, 1898 Modiolus Lamarck, 1799 Modulus Gray, 1842 Moelleria Jeffreys, 1865 Moelleriopsis Bush, 1897 Mohavelix Berry, 1943 Mohnia Friele, 1879 Monacha Fitzinger, 1833 Monadenia Pilsbry, 1895 Moncetia Bourguignat, 1886 Monia Gray, 1850 Monilea Swainson, 1840 Monocondylaea d'Orbigny, 1835 Monodonta Lamarck, 1799 Monostiolum Dall, 1904 Montacuta Turton, 1822 Montfortula Iredale, 1915 Montfortulana Habe, 1961 Mopalia Gray, 1847 Moroteuthis Verrill, 1881 Morrisonella Bartsch, 1945 Morula Schumacher, 1817 Morum Roding, 1798 Moulinsia Grateloup, 1840 Mourgona Er. Marcus and Ev. Marcus, 1970 Mucronalia A. Adams, 1860 Mulinia Gray, 1837 Munditia Finlay, 1926 Murchisonella Morch, 1875 Murex Linnaeus, 1758 Murexiella Clench and Perez Farfante, 1945 Murexsul Iredale, 1915 Muricantharus Hertlein and Strong, 1971 Muricopsis Bucquoy, Dautzenberg and Dollfus, 1882 Musculista Yamamoto and Habe, 1958 Musculium Link, 1807 Musculus Roding, 1798 Mutela Scopoli, 1777 Mya Linnaeus, 1758 Mycetopoda d'Orbigny, 1835 Mycetopodella Marshall, 1927 Mychopoma Blanford, 1869 Myonera Dall, 1886 Myosotella di Monterosato, 1906 Myotophallus Pilsbry, 1939 Myrtea Turton, 1822 Mysella Angas, 1877 Mysia Lamarck, 1818 Mysouffa Ev. Marcus, 1974 Mytilimeria Conrad, 1837 Mytilopsis Conrad, 1857 Mytilus Linnaeus, 1758 Myxostoma Troschel, 1847 Naesiotus Albers, 1850 Namkongnaia Jeratthitikul, Sutcharit, Ngor & Prasankok, 2021 Nannodiella Dall, 1919 Nannoteretispira Habe, 1961 Nanobalcis Waren and Mifsud, 1990 Nanula Thiele, 1924 Nassaria Link, 1807 Nassarina Dall, 1889 Nassarius Dumeril, 1806 Natica Scoploi, 1777 Naticarius Duméril, 1806 Naudolivia Kilburn, 1989 Nausitora Wright, 1884 Nautilus Linnaeus, 1758 Navanax Pilsbry, 1895 Neadmete Habe, 1961 Neaeromya Gabe, 1873 Nearctula Sterki, 1892 Nectoteuthis Verrill, 1883 Neilonela Dall, 1881 Nematolampas Berry, 1913 Nematomenia Simroth, 1893 Nembrotha Bergh, 1877 Nemocardium Meek, 1876 Neoberingius Habe and Ito, 1965 Neocyclotus Fischer and Crosse, 1886 Neodrillia Bartsch, 1943 Neohelix Ihering, 1892 Neolepton Finley, 1926 Neomaizania Van Bruggen, 1985 Neomenia Tullberg, 1875 Neopilina Lemche, 1957 Neoplanorbis Pilsbry, 1906 Neopleurotomoides Shuto, 1925 Neopycnodonte Stenzel, 1971 Neorossia Boletzky, 1971 Neosimnia P. Fischer, 1884 Neoteuthis Naef, 1921 Neothauma E. Smith, 1880 Neotrapezium Habe, 1951 Nephritica Frierson, 1927 Nephronaias Crosse & Fischer, 1894 Nepotilla Hedley, 1918 Neptunea Röding, 1798 Nerita Linnaeus, 1758 Neritilia Van Martens, 1879 Neritina Lamarck, 1816 Neritodryas Von Martens, 1869 Neritopsis Grateloup, 1832 Nesovitrea C. M. Cooke, 1921 Nesta H. Adams, 1870 Netastoma Carpenter, 1864 Nettastomella Carpenter, 1865 Neverita Risso, 1826 Newnesia E. A. Smith, 1902 Nierstrassia Nipponolimopsis Habe, 1951 Nipponotrophon Niso Risso, 1826 Nitia Pallary, 1924 Nitidella Swainson, 1840 Nitidiscala de Boury, 1909 Niveotectura Habe, 1944 Niveria Jousseaume, 1884 Nodilittorina von Martens, 1897 Nodipecten Dall, 1898 Nodiscala de Boury, 1889 Nodopomatias Gude, 1921 Nodotoma Nodularia Conrad, 1853 Nodulotrophon Noetia Gray, 1857 Norrisia Bayle, 1880 Notarchus Cuvier, 1818 Notoacmea Iredale, 1915 Notobranchaea Pelseneer, 1886 Notobryon Odhner, 1936 Notocrater Finley, 1927 Notogillia Pilsbry, 1953 Notomella Cotton, 1957 Notomenia Thiele, 1897 Notoplax H. Adams, 1861 Nototeredo Bartsch, 1923 Nototeuthis Nesis and Nikitina, 1986 Nototodarus Pfeffer, 1912 Noumeaella Gosliner, 1991 Novisuccinea Pilsbry, 1948 Noyo Roth, 1996 Nucella Roding, 1798 Nucinella Wood, 1851 Nucula Lamarck, 1799 Nuculana Link, 1807 Nuculoma Cossmann, 1907 Nutricola Bernard, 1982 Nuttallia Dall, 1900 Nuttallina Dall, 1871 Nuttallochiton Plate, 1899 Nyassunio Haas, 1936 Nyeinchanconcha Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Nystiella Clench and Turner, 1952 Obesotoma Bartsch, 1941 Obliquaria Rafinesque, 1820 Obovalis Simpson, 1900 Obovaria Rafinesque, 1819 Oceanida de Folin, 1870 Ocenebra Gray, 1847 Ocenotrophon McLean, 1995 Ocheyoherpia Salvini-Plawen, 1978 Ocinebrina Jousseaume, 1880 Octopoteuthis Rüppell, 1844 Octopus Cuvier, 1797 Ocythoe Rafinesque, 1814 Odontogena Cowan, 1964 Odostomella Bucquoy, Dautzenberg and Dollfus, 1883 Odostomia Fleming, 1813 Oenopota Morch, 1852 Ogaridiscus Chamberlin and Jonas, 1929 Ogasawarana Wagner, 1905 Okenia Leuckart and Bronn in Menke, 1830 Oldroydia Dall, 1894 Olea Agersborg, 1923 Oligomeria Galkin and Golikov, 1985 Oligyra Say, 1818 Oliva Bruguiere, 1789 Olivella Swainson, 1831 Olivia Cantraine, 1835 Olygyra Say, 1818 Omalogyra Jeffreys, 1859 Ommastrephes D'Orbigny, 1834 in 1834-1847 Omniglypta Kuroda & Habe in Habe, 1953 Onchidella Gray, 1850 Onchidiopsis Bergh, 1853 Onchidoris de Blainville, 1816 Onithochiton Gray, 1847 Onoba H. Adams and A. Adams, 1852 Onobops F. G. Thompson, 1969 Onychoteuthis Lichtenstein, 1818 Onykia Lesueur, 1821 Oocorys P. Fischer, 1883 Opalia H. Adams and A. Adams, 1853 Opaliopsis Thiele, 1928 Opeas Albers, 1850 Ophiodermella Bartsch, 1944 Opisthostoma W. and H. Blanford, 1860 Opisthoteuthis Verrill, 1883 Orbitestella Iredale, 1917 Oreohelix Pilsbry, 1904 Orinella Dall and Bartsch, 1904 Ornithoteuthis Okada, 1927 Orobitella Dall, 1900 Orobophana Wagner, 1905 Orthalicus Beck, 1837 Ortmanniana Frierson, 1927 Osteopelta Marshall, 1987 Ostodes Gould, 1862 Ostrea Linnaeus, 1758 Otala Schumacher, 1817 Otina Gray, 1847 Ovatella Bivona, 1832 Oxychilus Fitzinger, 1833 Oxygyrus Benson, 1835 Oxyloma Westerlund, 1885 Oxynoe Rafinesque, 1814 Pachymenia Heath, 1911 Pachynaias Crosse & Fischer, 1894 Pachystremiscus Olsson and McGinty, 1942 Paedoclione Danforth, 1907 Paetulunio Watters, 2018 Palaina Semper, 1865 Palio Gray, 1857 Palisa Edmunds, 1964 Pallifera E. S. Morse, 1864 Palliolum di Monterosato, 1884 Paludestrina d'Orbigny, 1840 Panacca Dall, 1905 Pandora Chemnitz, 1795 Panocochlea Dall, 1908 Panomya Gray, 1857 Panopea Menard, 1807 Papustyla Pilsbry, 1893 Papyridea Swainson, 1840 Parabornia Boss, 1965 Paraclione Tesch, 1903 Paracocculina Haszprunar, 1987 Paradentalium Cotton & Godfrey, 1933 Paragymmomenia Leloup, 1947 Parahyotissa Harry, 1985 Paralaoma Iredale, 1913 Parallelodon Meek and Worthen, 1866 Paramya Conrad, 1860 Parapholas Conrad, 1848 Pararrhopalia Simroth, 1893 Parashiela Parastarte Conrad, 1862 Parateuthis Thiele, 1920 Paravitrea Pilsbry, 1898 Pareledone Robson, 1932 Parreysia Conrad, 1853 Particulazona Kaas, 1993 Parvamussium Sacco, 1897 Parvanachis Radwin, 1968 Parvasolenaia Huang & Wu in Huang et al., 2019 Parvaspina Perkins, Johnson & Gangloff, 2017 Parvicardium Monterosato, 1884 Parvilucina Dall, 1901 Parviphos Sarasua, 1984 Parviturbo Pilsbry and McGinty, 1945 Parviturboides Pilsbry and McGinty, 1950 Patella Linnaeus, 1758 Patelloida Quoy and Gaimard, 1834 Patera Albers, 1850 Patina Gray, 1840 Patinopecten Dall, 1898 Paziella Pazionotus Pearsonia Kobelt, 1902 Pecosorbis Taylor, 1985 Pecten Muller, 1776 Pectinella A. E. Verrill, 1897 Pectinodonta Dall, 1882 Pedicularia Swainson, 1840 Pedipes Ferussac, 1821 Pegias Simpson, 1900 Pelseneeria Koehler and Vaney, 1908 Peltodoris Bergh, 1880 Pelycidion Fischer, 1873 Penitella Valenciennes, 1846 Peracle Forbes, 1844 Periglypta Jukes-Browne, 1914 Peringia Paladilhe, 1874 Periploma Schumacher, 1817 Peristichia Dall, 1889 Perna Philipsson, 1788 Perotrochus P. Fischer, 1885 Persicula Schumacher, 1817 Pertusiconcha Chistikov, 1982 Petalifera Gray, 1847 Petaloconchus I. Lea, 1843 Petitilla Wise, 1996 Petricola Lamarck, 1801 Petricolaria Stoliczka, 1870 Phalium Link, 1807 Phaseolus Monterosato, 1875 Phaxas Leach, 1852 Phenacovolva Iredale, 1930 Phidiana Gray, 1850 Philbertia Philine Ascanius, 1772 Philinoglossa Hertling, 1932 Philinopsis Pease, 1860 Philippia J. E. Gray, 1847 Philobrya Carpenter, 1872 Philomycus Rafinesque, 1820 Philorene Oliver, 1915 Pholadidea Turton, 1819 Pholas Linnaeus, 1758 Pholidoherpia Salvini-Plawen, 1978 Pholidoteuthis Adam, 1950 Phorculus Cossmann, 1888 Phos Montfort, 1810 Photinastoma Powell, 1951 Photinula H. and A. Adams In Adams, 1853 Phreatoceras Hershler and Longley, 1987 Phreatodrobia Hershler and Longley, 1986 Phyllaplysia P. Fischer, 1872 Phyllidiopsis Bergh, 1875 Phylliroe Peron and Lesueur, 1810 Phyllobranchillus Pruvot-Fol, 1933 Phyllomenia Thiele, 1913 Phymorhynchus Dall, 1908 Physa Draparnaud, 1801 Physella Haldeman, 1842 Physunio Simpson, 1900 Phytia Nomen Nudum Pickfordiateuthis Voss, 1953 Pictodentalium Palmer, 1974 Pila Röding, 1798 Piliscus Loven, 1859 Pillucina Pilsbry, 1921 Pilsbryna H. B. Baker, 1929 Pilsbryoconcha Simpson, 1900 Pilsbryspira Bartsch, 1950 Pinctada Roding, 1798 Pinna Linnaeus, 1758 Pinteria Varga, 1972 Pisania Bivona-Bernardi, 1832 Piseinotecus Er. Marcus, 1955 Pisidium L. Pfeiffer, 1821 Pisulina G. and H. Nevill, 1869 Pitar Römer, 1857 Placida Trinchese, 1876 Placiphorella Dall, 1879 Placiphorina Kaas and Van Belle, 1993 Placopecten Verrill, 1897 Plagiocardium Cossmann, 1886 Plagioglypta Pilsbry in Pilsbry & Sharp, 1897 Planaxis Lamarck, 1822 Planctoteuthis Pfeffer, 1912 Planitrochus Perner, 1903 Planktomya Simroth, 1896 Planogyra E. S. Morse, 1864 Planorbella Haldeman, 1842 Planorbis Müller, 1774 Planorbula Haldeman, 1842 Plathymenia Schwabl, 1961 Platomysia Habe, 1951 Platycythara Woodring, 1928 Platydoris Bergh, 1877 Platyodon Conrad, 1837 Platyrhaphe Moellendorff, 1890 Plaxiphora Gray, 1847 Plectodon Carpenter, 1864 Plectomerus Conrad, 1853 Pleiodon Conrad, 1834 Plesarionta Pilsbry, 1939 Plesiocystiscus Coovert and Coovert, 1995 Plesiothyreus Cossmann, 1888 Plesiotrochus P. Fischer, 1878 Plethobasus Simpson, 1900 Pletholophus Simpson, 1900 Pleurobema Rafinesque, 1819 Pleurobranchaea Meckel, 1813 Pleurobranchus Cuvier, 1804 Pleurocera Rafinesque, 1818 Pleuromalaxis Pilsbry and McGinty, 1945 Pleuromeris Conrad, 1867 Pleuronaia Frierson, 1927 Pleuroploca P. Fischer, 1884 Pleuropoma Moellendorff, 1893 Pleurotomella Verrill, 1872 Plicatula Lamarck, 1801 Plicifusus Dall, 1902 Plicopurpura Cossmann, 1903 Pneumoderma Dumeril, 1806 Pneumodermopsis Keferstein, 1862 Pododesmus Philippi, 1837 Poirieria Jousseaume, 1880 Policordia Dall, Bartsch and Rehder, 1938 Polinices Montfort, 1810 Pollia J. E. Gray, 1834 Pollicaria Gould, 1856 Polybranchia Pease, 1860 Polycera Cuvier, 1817 Polycerella A. E. Verrill, 1881 Polygireulima Sacco, 1892 Polygyra Say, 1818 Polygyrella W. G. Binney, 1863 Polygyriscus Pilsbry, 1948 Polygyroidea Pilsbry, 1930 Polymesoda Rafinesque, 1820 Polyschides Pilsbry & Sharp, 1898 Polystira Woodring, 1928 Pomacea Perry, 1810 Pomatiopsis Tryon, 1862 Pomaulax Gray, 1850 Pondorbis Bartsch, 1915 Popenaias Frierson, 1927 Porocallia Moellendorff, 1893 Poromya Forbes, 1844 Portlandia Morch, 1857 Potamacmaea Peile, 1922 Potamilus Rafinesque, 1818 Potamocorbula Habe, 1955 Potamopyrgus Stimpson, 1865 Poteria Gray, 1850 Potomida Swainson, 1840 Powellsetia Praticolella von Martens, 1892 Precuthona Odhner, 1929 Pressidens Haas, 1910 Pressodonta Simpson, 1900 Primovula Thiele, 1925 Prionoglossa Tesch, 1950 Prisodon Schumacher, 1817 Prisodontopsis Tomlin, 1928 Prisogaster Moerch, 1850 Pristes Carpenter, 1864 Pristigloma Dall, 1900 Pristiloma Ancey, 1887 Pristinicola Hershler, Frest, Johannes, Bowler and F. G. Thompson, 1994 Problacmaea Golikov and Kussakin, 1972 Probythinella Thiele, 1928 Prochaetoderma Thiele, 1913 Proctonotus Alder, 1844 Prohyriopsis Haas, 1914 Prolasmidonta Ortmann, 1914 Promachoteuthis Hoyle, 1885 Promenetus F. C. Baker, 1935 Proneomenia Hubrecht, 1880 Pronodularia Starobogatov, 1970 Proparamenia Nierstrasz, 1902 Propeamussium Gregorio, 1884 Propebela Iredale, 1918 Prophysaon Bland and W. G. Binney, 1873 Propilidium Forbes and Hanley, 1849 Propustularia Schilder, 1927 Proserpina G. B. Sowerby, 1839 Proserpinella Bland, 1865 Protatlanta Tesch, 1908 Proterato Schilder, 1927 Protocuspidaria Allen and Morgan, 1981 Protothaca Dall, 1902 Protunio Haas, 1913 Prunum Herrmannsen, 1852 Pruvotella Pruvot-fol, 1932 Pruvotia Thiele, 1894 Pruvotina Cockerell, 1903 Psammodoris Martynov, 1994 Psammotreta Dall, 1900 Pseudacteon Thiele, 1925 Pseudanodonta Bourguignat, 1876 Pseudobaphia Simpson, 1900 Pseudochama Odhner, 1917 Pseudococulina Schepman, 1908 Pseudocuneopsis Huang, Dai, Chen & Wu et al., 2022 Pseudocyphoma Cate, 1973 Pseudodiala Ponder, 1967 Pseudodon Gould, 1844 Pseudodontoideus Frierson, 1927 Pseudodontopsis Kobelt, 1912 Pseudoliomesus Habe and Sato, 1973 Pseudolivia Swainson, 1840 Pseudomalaxis P. Fischer, 1885 Pseudomelatoma Dall, 1918 Pseudomiltha Pseudomulleria R. Anthony, 1907 Pseudopalaina Moekkendroff, 1898 Pseudopomatias Moellendorff, 1885 Pseudopythina P. Fischer, 1884 Pseudosabinella McLean, 1995 Pseudoscilla Boettger, 1901 Pseudosimnia Schilder, 1927 Pseudospatha Simpson, 1900 Pseudostomatella Thiele, 1924 Pseudosubulina Strebel and Pfeffer, 1882 Pseudosuccinea F. C. Baker, 1908 Pseudotalopia Habe, 1961 Pseudotaranis McLean, 1995 Pseudotorinia Sacco, 1892 Pseudotrochatella Nevill, 1891 Pseudotryonia Hershler, 2001 Pseudovermis Periaslavzeff, 1891 Pseudunio Haas, 1910 Psilaxis Woodring, 1928 Psilodens Salvini-Plawen, 1977 Psiloteredo Bartsch, 1922 Psoronaias Crosse & Fischer, 1894 Psychroteuthis Thiele, 1920 Pterarene Sakurai and Habe, 1977 Pteria Scoploi, 1777 Pterochelus Pteroctopus Fischer, 1882 in 1880-1887 Pterocyclus Benson, 1832 Pteromeris Conrad, 1862 Pteropurpura Jousseaume, 1880 Pterotrachea Forskal, 1775 Pterotyphis Jousseaume, 1881 Pterygioteuthis Fischer, 1896 Pterynotus Swainson, 1833 Ptychatractus Stimpson, 1865 Ptychobranchus Simpson, 1900 Ptychopoma Moellendorff, 1885 Ptychorhynchus Simpson, 1900 Ptychosalpinx Gill, 1867 Puberella Fischer-Piette and Vukadinovic, 1977 Pugnus Hedley, 1896 Pulsellum Stoliczka, 1868 Pulvinites De France, 1824 Punctum E. S. Morse, 1864 Puncturella R. T. Lowe, 1827 Pupa Puperita Gray, 1857 Pupilaea Gray In Sowerby, 1835 Pupilla Leach, 1828 Pupina Vignard, 1829 Pupinella Gray, 1850 Pupisoma Stoliczka, 1873 Pupoides L. Pfeiffer, 1854 Purpura Pusillina Pustulosa Frierson, 1927 Pusula Jousseaume, 1884 Putilla A. Adams, 1867 Putzeysia Sulliotti, 1889 Pycnodonte G. Fischer, 1835 Pyganodon Crosse & Fischer, 1894 Pyramidella Lamarck, 1799 Pyrgocythara Woodring, 1928 Pyrgodomus Fischer and Crosse, 1893 Pyrgophorus Ancey, 1888 Pyrgospira McLean, 1971 Pyrgulina Pyrgulopsis Call and Pilsbry, 1886 Pyropelta Mclean and Haszprunar, 1987 Pyroteuthis Hoyle, 1904 Pyrulofusus Mörch, 1857 Pyrunculus Pilsbry, 1895 Pythinella Dall, 1899 Quadrula Rafinesque, 1820 Quasicorambe Martynov, 1994 Quidnipagus (Iredale, 1929) Quoyula Iredale, 1912 Rabdotus Albers, 1850 Radiatula Simpson, 1900 Radiocentrum Pilsbry, 1905 Radiodiscus Pilsbry and Ferriss, 1906 Radix Montfort, 1810 Raeta Gray, 1853 Rangia Desmoulins, 1832 Raphaulus Pfeiffer, 1856 Raphitoma Bellardi, 1847 Recluzia Petit de la Saussaye, 1853 Rectidens Simpson, 1900 Reginaia Campbell & Lydeard, 2012 Reticulatus Frierson, 1927 Retifusus Dall, 1916 Retilaskeya Marshall, 1978 Retimohnia McLean, 1995 Retusa T. Brown, 1827 Rhabdoherpia Salvini-Plawen, 1978 Rhabdus Pilsbry & Sharp, 1897 Rhamphidonta Bernard, 1975 Rhapinema F. G. Thompson, 1969 Rhinodiaphana Lemche, 1967 Rhiostoma Benson, 1860 Rhipidoherpia Salvini-Plawen, 1978 Rhizorus Montford, 1810 Rhodacmea Walker, 1917 Rhodinoliotia Tomlin and Shackleford, 1915 Rhodope Rhodopetala Dall, 1921 Rhodopetoma Bartsch, 1944 Rhombinella Radwin, 1968 Rhomboidella Monterosato, 1884 Rhomboxiphus Chistikov, 1983 Rhombuniopsis Haas, 1920 Rhopalomenia Simroth, 1893 Rictaxis Dall, 1871 Rimosodaphnella Schnetler and Beyer, 1990 Rimula DeFrance, 1827 Ringicula Deshayes, 1838 Rissoa Freminville, 1814 Rissoella J. E. Gray, 1847 Rissoina d'Orbigny, 1841 Rissopsetia Dell, 1956 Rivularia Huede, 1890 Robsonella Adam, 1938 Rochefortia Velain, 1878 Rondeletiola Naef, 1921 Roperia Dall, 1898 Rossia Owen, 1834 Rossiteria Brazier, 1895 Rostanga Bergh, 1879 Rotellenzia Quinn, 1987 Rothelix Miller, 1985 Roxania Leach In Gray, 1847 Rubellatoma Bartsch and Rehder, 1939 Rumina Risso, 1826 Runcina Forbes and Hanley, 1851 Rupellaria Fleuriau de Bellevue, 1802 Sabia Reeve, 1842 Sabinella di Monterosato, 1890 Saccharoturris Woodring, 1928 Saccostrea Dollfus and Dautzenberg, 1920 Sagamicadulus Sakurai & Shimazu, 1963 Sagamilepeta Okutani, 1987 Sagittunio Watters, 2018 Sakuraeolis Baba, 1965 Samacar Iredale, 1936 Sandalomenia Thiele, 1913 Sandalops Chun, 1906 Sanguinolaria Lamarck, 1799 Sansonia Jousseaume, 1892 Sarasinula Grimpe and Hoffmann, 1924 Sarasomia Sassia Bellardi, 1873 Saturnia Sequenza, 1877 Saulea Gray, 1867 Saxicavella P. Fischer, 1878 Saxidomus Conrad, 1837 Sayella Dall, 1885 Scabiellus Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Scabies Haas, 1911 Scabrina Blanford, 1863 Scabrotrophon McLean, 1996 Scaeurgus Troschel, 1857 Scalenostoma Scaliola A. Adams, 1860 Scaphander Montfort, 1810 Scaphella Swainson, 1832 Scelidotoma Choe, Yoon and Habe, 1992 Schasicheila Shuttleworth, 1852 Schepmania Haas, 1910 Schistodesmus Simpson, 1900 Schistoloma Kobelt, 1902 Schizobrachium Meisenheimer, 1903 Schizochiton Gray, 1847 Schizodentalium Sowerby, 1894 Schizoplax Dall, 1878 Schwartziella Ponder, 1985 Scintillona Finlay, 1926 Scissilabra Bartsch, 1907 Scissurella D'Orbigny, 1824 Sclerodoris Eliot, 1904 Sconsia Gray, 1847 Scrobicularia Schumacher, 1815 Scurria Gray, 1847 Scutopus Salvini-Plawen, 1968 Scutus Montfort, 1810 Scyllaea Linnaeus, 1758 Searlesia Harmer, 1916 Securicauda Leonard, Chichester, Richart and Young, 2011 Seguenzia Jeffreys, 1876 Seguenziella Marshall, 1983 Seguenziopsis Marshall, 1983 Seila A. Adams, 1861 Selenoteuthis Voss, 1959 Semele Schumacher, 1817 Semelina Dall, 1900 Semierycina Monterosato, 1911 Seminella Semirossia Steenstrup, 1887 Sepia Linnaeus, 1758 Sepiadarium Steenstrup, 1881 Sepiella Gray, 1849 Sepietta Naef, 1912 Sepiola Leach, 1817 Sepiolina Naef, 1912 Sepioloidea D'Orbigny, 1845 in Férussac and D'Orbigny, 1834-1848 Sepioteuthis Blainville, 1824 Septaria J. Férussac, 1807 Septariellina Bequaert and Clench, 1936 Septifer Recluz, 1848 Serpulorbis Sasso, 1827 Serripes Gould, 1841 Setia H. and A. Adams, 1852 Sialoherpia Salvini-Plawen, 1978 Sigatica Meyer and Aldrich, 1886 Silicula Jeffreys, 1879 Siliqua Megerle von Muhlfeld, 1811 Siliquaria Bruguiere, 1789 Similiphora Bouchet, 1985 Simnia Risso, 1826 Simnialena Cate, 1973 Simomactra Dall, 1894 Simpsonaias Frierson, 1914 Simpsonasus Bolotov & Konopleva in Bolotov et al., 2023 Simpsonella Cockerell, 1903 Simrothiella Pilsbry, 1898 Sinanodonta Modell, 1945 Sinezona Finlay, 1927 Sinohyriopsis Starobogatov, 1970 Sinosolenaia Bolotov, Kondakov, Konopleva & Vikhrev, 2021 Sinotaia Haas, 1939 Sinum Röding, 1798 Siphonaria G. B. Sowerby I, 1823 Siphonodentalium M. Sars, 1859 Siraius Marcus, 1955 Skenea Fleming, 1825 Skeneopsis Iredale, 1915 Smaragdia Issel, 1869 Smeagol Climo, 1980 Solamen Iredale, 1924 Solariella S. V. Wood, 1842 Solariorbis Conrad, 1865 Solatisonax Iredale, 1931 Solecurtus de Blainville, 1824 Solemya Lamarck, 1818 Solen Linnaeus, 1758 Solenaia Conrad, 1869 Solenoxiphus Chistikov, 1983 Somatogyrus Gill, 1863 Songkhlanaia Konopleva, Lheknim, Sriwoon, Kondakov, Vikhrev & Bolotov in Konopleva et al., 2023 Sonorelix Berry, 1943 Sonorella Pilsbry, 1900 Spadentalina Habe, 1963 Spathochlamys Waller, 1993 Spathoderma Scheltema, 1985 Spathoteredo Moll, 1928 Spectamen Iredale, 1924 Speleodiscoides A. G. Smith, 1957 Spengelomenia Heath, 1912 Spengleria Tryon, 1861 Sphaerium Scopoli, 1777 Sphenia Turton, 1822 Sphenonaias Crosse & Fischer, 1894 Spiculata C. N. Cate, 1973 Spilochlamys F. G. Thompson, 1968 Spinobrookula Lozouet, 1982 Spinula Dall, 1908 Spiroglyptus Daudin, 1800 Spirolaxis di Monterosato, 1913 Spiromoelleria Baxter and J. H. McLean, 1984 Spirostoma Heude, 1885 Spirotropis Sars, 1878 Spirula Lamarck, 1799 Spisula Gray, 1837 Splendrillia Hedley, 1922 Spondylus Linnaeus, 1758 Spongiobranchaea d'Orbigny, 1836 Spurilla Bergh, 1864 Spurwinkia Davis, Mazurkiewicz and Mandracchia, 1982 Sputoherpia Salvini-Plawen, 1978 Squamopleura Nierstrasz, 1905 Srilankaia Mienis, 1974 Staffola Dall, 1905 Stagnicola Leach, 1830 Stauroteuthis Verrill, 1879 Steironepion Pilsbry and Lowe, 1932 Stellatoma Bartsch and Rehder, 1939 Stenochiton H. Adams and Angas, 1864 Stenolena Dall, Bartsch, and Rehder, 1938 Stenophysa von Martens, 1898 Stenoplax Dall, 1879 Stenosemus von Middendorff, 1847 Stenotrema Rafinesque, 1819 Sterkia Pilsbry, 1898 Sthenorytis Conrad, 1862 Sthenoteuthis Verrill, 1880 in 1879-1880 Stigmaulax Mörch, 1852 Stilifer Broderip, 1832 Stiliger Ehrenberg, 1828 Stiobia F. G. Thompson and McCaleb, 1978 Stoastoma C. B. Adams, 1849 Stoastomops H. B. Baker, 1924 Stoloteuthis Verrill, 1881 in 1880-1881 Stomatella Lamarck, 1816 Stomatia Helbling, 1779 Stosicia Brusina, 1871 Stramonita Schumacher, 1817 Streptaulus Benson, 1857 Striarea Conrad, 1862 Striatura E. S. Morse, 1864 Strictispira McLean, 1971 Strigilla Turton, 1822 Striocadulus Emerson, 1962 Striodentalium Habe, 1964 Striopulsellum Scarabino, 1995 Strobilops Pilsbry, 1893 Strombiformis Da Costa, 1778 Stromboli Berry, 1954 Strombus Linnaeus, 1758 Strophitus Rafinesque, 1820 Strophomenia Pruvot, 1899 Sturanya Wagner, 1905 Stygopyrgus Hershler and Longley, 1986 Stylidium Dall, 1907 Styliferina A. Adams, 1860 Styliola Gray, 1850 Stylocheilus Gould, 1852 Stylomenia Pruvot, 1899 Suavodrillia Dall, 1918 Subcancilla Olsson and Harbison, 1953 Subsimnia C. N. Cate, 1973 Subterenochiton Iredale & Hull, 1924 Subulina Beck, 1837 Succinea Draparnaud, 1801 Suhinia Martynov, 1994 Sukashitrochus Habe and Kosuge, 1964 Sulcosinus Dall, 1895 Sundadontina Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Supplanaxis Thiele, 1929 Suturoglypta Radwin, 1968 Synaptocochlea Pilsbry, 1890 Syncera Gray, 1821 Syngenoherpia Salvini-Plawen, 1978 Tachyrhynchus Morch, 1868 Tacita Lus, 1971 Tagelus Gray, 1847 Taia Annandale, 1918 Talopena Iredale, 1918 Talparia Troschel, 1863 Tambja Burn, 1962 Tamsiella Haas, 1931 Taningia Joubin, 1931 Tanzaniella Lupu, 1979 Taonius Steenstrup, 1861 Tapes Muhlfeld, 1811 Taranis Jeffreys, 1870 Tarebia H. Adams and A. Adams, 1854 Taringa Er. Marcus, 1955 Taylorconcha Hershler, Frest, Johannes, Bowler and F. G. Thompson, 1994 Tchangsinaia Starobogatov, 1970 Tectarius Valenciennes, 1833 Tecticrater Dall, 1956 Tectininus Clench and Abbott, 1942 Tectisumen Finley, 1927 Tectonatica Sacco, 1890 Tectura Gray, 1847 Tectus Montfort, 1810 Tegula Lesson, 1835 Teinostoma H. Adams and A. Adams, 1853 Tellidora Morch, 1856 Tellidorella Berry, 1963 Tellimya Brown, 1827 Tellina Linnaeus, 1758 Tenagodus Guettard, 1770 Tenaturris Woodring, 1928 Tenellia A. Costa, 1866 Tentaoculus Moskalev, 1976 Teralatirus Coomans, 1965 Terebra Bruguiere, 1789 Teredo Linnaeus, 1758 Teredora Bartsch, 1921 Teredothyra Bartsch, 1921 Teretia Norman, 1888 Teretoctopus Robson, 1929 Tergipes Cuvier, 1805 Teskeyostrea Harry, 1985 Tesseracme Pilsbry & Sharp, 1897 Testacella Cuvier, 1801 Tethys Linnaeus, 1758 Tetracheledone Voss, 1955 Tetronychoteuthis Pfeffer, 1900 Teuthirostra Moskalev, 1976 Teuthowenia Chun, 1910 Texadina Abbott and Ladd, 1951 Texapyrgus F. G. Thompson and Hershler, 1991 Thaiconcha Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Thais Roding, 1798 Thala H. Adams and A. Adams, 1853 Thalassopterus Kwietniewski, 1910 Thaleia Waren, 1979 Thalotia Gray, 1840 Thaltia Tharsiella Bush, 1897 Thaumeledone Robson, 1930 Theba Risso, 1826 Thecacera Fleming, 1828 Thelecythara Woodring, 1928 Theliderma Swainson, 1840 Thelyssa F. M. Bayer, 1971 Thelyssina Marshall, 1883 Theobaldius G. Nevill, 1878 Theodoxus Montfort, 1810 Theora H. Adams and A. Adams, 1856 Thermochiton Saito and Okutani, 1991 Thesbia Jeffreys, 1867 Theta Clark, 1959 Thiara Roeding, 1798 Thliptodon Boas, 1886 Tholopex Digeronimo, 1974 Thomeomaizania Bequeart and Clench, 1936 Thordisa Bergh, 1877 Thracia Leach in Blainville, 1824 Thuridilla Bergh, 1872 Thyasira Lamarck, 1818 Thyonicola Mandahl-Barth, 1941 Thysanophora Strebel and Pfeffer, 1880 Thysanoteuthis Troschel, 1857 Tibatrochus Nonura, 1940 Timoclea Brown, 1827 Tindaria Bellardi, 1875 Titiscania Bergh, 1890 Tivela Link, 1807 Tochuina Odhner, 1963 Todarodes Steenstrup, 1880 Todaropsis Girard, 1890 Toffelettia Giusti, 1971 Tomburchus W. H. Harry, 1969 Tomocyclus Crosse and Fischer, 1872 Tomura Pilsbry and McGinty, 1946 Tonicella Carpenter, 1873 Tonicia Gray, 1847 Tonicina Thiele, 1906 Tonna Brunnich, 1772 Torellia Lovén in Jeffreys, 1867 Tornatina A. Adams, 1850 Tornus Turton and Kingston, 1830 Tortulosa Gray, 1847 Toxolasma Rafinesque, 1831 Trabecula di Monterosato, 1884 Trachycardium Morch, 1853 Trachypollia Woodring, 1928 Tralia Gray, 1840 Transennella Dall, 1883 Trapania Pruvot-Fol, 1931 Trapezidens Bolotov, Vikhrev & Konopleva in Bolotov et al., 2017 Trapezium Muhlfeld, 1811 Trapezoideus Simpson, 1900 Tremoctopus Chiaie, 1830 in 1823-1831 Tresus Gray, 1853 Trichia Hartmann, 1841 Trichotropis Broderip and G. B. Sowerby I, 1829 Tricolia Risso, 1826 Trigoniocardia Dall, 1900 Trigonostoma de Blainville, 1825 Trigonulina D'Orbigny, 1842 Trilobopsis Pilsbry, 1939 Trimusculus Schmidt, 1818 Trinchesia Ihering, 1879 Triodopsis Rafinesque, 1819 Triopha Bergh, 1880 Triphora de Blainville, 1828 Triplodon Spix & Wagner, 1827 Triptychus Morch, 1875 Tritonia Cuvier, 1798 Tritonidoxa Bergh, 1907 Tritoniopsis Eliot, 1905 Tritonoharpa Dall, 1908 Triumphis Gray, 1857 Trivia Broderip, 1837 Trochaclis Thiele, 1912 Trochinella Iredale, 1937 Trochoidea Brown, 1827 Trochotaia Brandt, 1974 Trochus Linnaeus, 1758 Trophon Montfort, 1810 Trophonopsis Bucquoy, Dautzenberg and Dollfus, 1882 Tropidomarga Powell, 1951 Truncatella Risso, 1826 Truncilla Rafinesque, 1819 Tryonia Stimpson, 1865 Tubiola A. Adams, 1863 Tugali Gray In Dieffenbach, 1843 Tulotoma Haldeman, 1840 Turbinella Lamarck, 1799 Turbo Linnaeus, 1758 Turbonilla Risso, 1826 Turcica A. Adams, 1854 Turrisipho Dautzenberg and Fischer, 1912 Turritella Lamarck, 1799 Turritellopsis G. O. Sars, 1878 Turtonia Alder, 1848 Tylodina Rafinesque, 1814 Tylodinella Typhinellus Jousseaume, 1880 Typhis Montfort, 1810 Typhlomangelia G. O. Sars, 1878 Udosarx Webb, 1954 Umbilibalcis Bouchet and Waren, 1986 Umbonium Link, 1807 Umbraculum Schumacher, 1817 Uncimenia Nierstraez, 1903 Unela Er. Marcus, 1953 Unio Philipsson in Retzius, 1788 Uniomerus Conrad, 1853 Unionetta Haas, 1955 Urosalpinx Stimpson, 1865 Uroteuthis Rehder, 1945 Utravoherpia Salvini-plawen, 1979 Utterbackia F. C. Baker, 1927 Utterbackiana Frierson, 1927 Vallonia Risso, 1826 Valvata O. F. Muller, 1774 Vampyroteuthis Chun, 1903 Vanikoro Quoy and Gaimard, 1832 Varicopeza Grundel, 1976 Varicorbula Grant and Gale, 1931 Vasum Roding, 1798 Velepalaina Iredale, 1937 Velesunio Iredale, 1934 Velodona Chun, 1915 Velutina Fleming, 1820 Venericardia Lamarck, 1801 Venerupis Lamarck, 1818 Ventridens Binney and Bland, 1869 Venus Linnaeus, 1758 Venustaconcha Frierson, 1927 Venustatrochus Powell, 1951 Veprecula Vermetus Vermichiton Kaas, 1990 Vermicularia Lamarck, 1799 Veronicella de Blainville, 1817 Verticordia J. de C. Sowerby, 1844 Vertigo O. F. Müller, 1773 Vesicomya Dall, 1886 Vespericola Pilsbry, 1939 Vexillum Roding, 1798 Viana H. and A. Adams, 1856 Vilasina Bartsch, 1960 Villosa Frierson, 1927 Virgus Simpson, 1900 Viridrillia Bartsch, 1943 Vitrea Fitzinger, 1833 Vitreledonella Joubin, 1918 Vitreolina di Monterosato, 1884 Vitricithra Vitricythara Fargo, 1953 Vitrina Draparnaud, 1801 Vitrinella C. B. Adams, 1850 Vitrinizonites W. G. Binney, 1879 Vitrinorbis Pilsbry and Olsson, 1952 Viviparus Montfort, 1810 Voluta Linnaeus, 1758 Volutharpa P. Fischer, 1856 Volutomitra H. Adams and A. Adams, 1853 Volutopsion Habe and Ito, 1965 Volutopsius Morch, 1857 Volva Linnaeus, 1758 Volvarina Hinds, 1844 Volvatella Newton, 1891 Volvulella Newton, 1891 Vorticifex Meek, 1870 Vosseledone Palacio, 1978 Waldemaria Wagner, 1905 Walvisteuthis Nesis and Nikitina, 1986 Watasenia Ishikawa, 1914 Webbhelix Emberton, 1988 Weedingia Kaas, 1988 Wemersoniella Scarabino, 1986 Westralunio Iredale, 1934 Williamia Monterosato, 1884 Wirenia Odhner, 1921 Woodbridgea S. S. Berry, 1953 Xanthodaphne Powell, 1942 Xenophora Fischer von Waldheim, 1807 Xerarionta Pilsbry, 1913 Xolotrema Rafinesque, 1819 Xylochiton Gowlett-Holmes and Jones, 1992 Xylophaga Turton, 1822 Xyloredo Turner, 1972 Yaquinabyssia Haszprunar, 1988 Yaukthwa Konopleva, Pfeiffer, Vikhrev, Kondakov, Gofarov, Aksenova, Lunn, Chan & Bolotov, 2019 Yoldia Moller, 1842 Yoldiella A. E. Verrill and Bush, 1897 Zachrysia Pilsbry, 1894 Zacoleus Pilsbry, 1903 Zafrona Iredale, 1916 Zalipais Iredale, 1915 Zebina H. Adams and A. Adams, 1854 Zeidora A. Adams, 1860 Zemira H. Adams and A. Adams, 1853 Zirfaea Gray, 1842 Zonaria Jousseaume, 1884 Zonites Montfort, 1810 Zonitoides Lehmann, 1862 Zonulispira Bartsch, 1950 Zoogenetes E. S. Morse, 1864 Abralia (Abralia) Gray, 1849 Abralia (Asteroteuthis) Pfeffer, 1908 Abralia (Astrabralia) Nesis, 1987 Abralia (Enigmoteuthis) Adam, 1973 Abralia (Heterabralia) Tsuchiya and Okutani, 1988 Abralia (Pygmabralia) Nesis, 1987 Abraliopsis (Abraliopsis) Joubin, 1896 Abraliopsis (Boreabraliopsis) Tsuchiya and Okutani, 1988 Abraliopsis (Micrabralia) Pfeffer, 1900 Abraliopsis (Pfefferiteuthis) Tsuchiya and Okutani, 1988 Chiroteuthis (Chiroteuthis) D'Orbigny, 1841 In Férussac and D'Orbigny, 1834-1848 Chiroteuthis (Chirothauma) Chun, 1910 Enoploteuthis (Enoploteuthis) D'Orbigny in Rüppell, 1844 Enoploteuthis (Paraenoploteuthis) Tsuchiya and Okutani, 1988 Filopaludina (Siamopaludina) Brandt, 1968 Gonatopsis (Boreoteuthis) Nesis, 1971 Gonatopsis (Gonatopsis) Sasaki, 1920 Heteroteuthis (Heteroteuthis) Gray, 1849 Heteroteuthis (Stephanoteuthis) Berry, 1909 Leachia (Leachia) Lesueur, 1821 Leachia (Pyrgopsis) Rochebrune, 1884 Loligo (Alloteuthis) Wülker, 1920 Loligo (Doryteuthis) Naef, 1912 Loligo (Loligo) Lamarck, 1798 Loliolus (Loliolus) Steenstrup, 1856 Loliolus (Nipponololigo) Natsukari, 1983 Lolliguncula (Loliolopsis) Berry, 1929 Lolliguncula (Lolliguncula) Steenstrup, 1881 Pleuropoma (Aphanoconia) Wagner, 1905 Pleuropoma (Pleuropoma) Moellendorff, 1893 Sepia (Acanthosepion) Rochebrune, 1884 Sepia (Anomalosepia) Khromov, 1987 Sepia (Doratosepion) Rochebrune, 1884 Sepia (Hemisepius) Steenstrup, 1875 Sepia (Rhombosepion) Rochebrune, 1884 Sepia (Sepia) Linnaeus, 1758 Uroteuthis (Photololigo) Natsukari, 1984 Uroteuthis (Uroteuthis) Rehder, 1945 Abra aequalis (Say, 1822) Abra alba Abra californica Kundsen, 1970 Abra lioica (Dall, 1881) Abra longicallis Sacchi, 1836 Abra nitida (O. F. Mueller, 1776) Abra pacifica Dall, 1915 Abra prismatica Abra profundorum E. A. Smith, 1885 Abra tenuis (Montagu, 1818) Abra tepocana Dall, 1915 Abralia andamanica Goodrich, 1896 Abralia armata (Quoy and Gaimard, 1832) Abralia astrolineata Berry, 1914 Abralia astrosticta Berry, 1909 Abralia dubia (Adam, 1960) Abralia fasciolata Tsuchiya, 1991 Abralia grimpei Voss, 1959 Abralia heminuchalis Burgess, 1992 Abralia marisarabica Okutani, 1983 Abralia multihamata Sasaki, 1929 Abralia redfieldi Voss, 1955 Abralia renschi Grimpe, 1931 Abralia robsoni Grimpe, 1931 Abralia siedleckyi Lipinski, 1983 Abralia similis Okutani and Tsuchiya, 1987 Abralia spaercki Grimpe, 1931 Abralia steindachneri Weindl, 1912 Abralia trigonura Berry, 1913 Abralia veranyi (Rüppell, 1844) Abraliopsis affinis (Pfeffer, 1912) Abraliopsis atlantica Nesis, 1982 Abraliopsis chuni Nesis, 1982 Abraliopsis falco Young, 1972 Abraliopsis felis McGowan and Okutani, 1968 Abraliopsis gilchristi (Robson, 1924) Abraliopsis hoylei (Pfeffer, 1884) Abraliopsis lineata (Goodrich, 1896) Abraliopsis morisi (Verany, 1839) Abraliopsis pacificus Tsuchiya and Okutani, 1990 Abraliopsis pfefferi Joubin, 1896 Abraliopsis tui Riddell, 1985 Acanthina lugubris (G. B. Sowerby I, 1821) Acanthina paucilirata (Stearns, 1871) Acanthina punctulata (G. B. Sowerby I, 1825) Acanthina spirata (de Blainville, 1832) Acanthocardia aculeata (Linnaeus, 1758) Acanthocardia tuberculata (Linnaeus, 1758) Acanthochitona angelica Dall, 1919 Acanthochitona avicula (Carpenter, 1864) Acanthochitona balesae Abbott, 1954 Acanthochitona communis Acanthochitona crinita (Pennant, 1777) Acanthochitona discrepans (Brown, 1827) Acanthochitona fascicularis (Linnaeus, 1767) Acanthochitona hemphilli (Pilsbry, 1893) Acanthochitona imperatrix Watters, 1981 Acanthochitona pygmaea (Pilsbry, 1893) Acanthochitona roseojugum Lyons, 1988 Acanthochitona spiculosa Reeve, 1847 Acanthochitona zebra Lyons, 1988 Acanthodoris armata O'Donoghue, 1927 Acanthodoris atrogriseata O'Donoghue, 1927 Acanthodoris brunnea MacFarland, 1905 Acanthodoris caerulescens Bergh, 1880 Acanthodoris hudsoni MacFarland, 1905 Acanthodoris lutea MacFarland, 1925 Acanthodoris nanaimoensis O'Donoghue, 1921 Acanthodoris pilosa (Abildgaard, 1789) Acanthodoris rhodoceras Cockerell, 1905 Acanthopleura granulata (Gmelin, 1791) Acanthotrophon striatoides Vokes, 1980 Acar bailyi Bartsch, 1931 Acella haldemani (W. G. Binney, 1867) Acharax johnsoni (Dall, 1891) Achatina fulica (Ferussac, 1821) Acila castrensis (Hinds, 1843) Acirsa borealis (Lyell, 1841) Aclis benedicti (Bartsch, 1947) Aclis californica Bartsch, 1927 Aclis carolinensis Bartsch, 1911 Aclis conula Dall, 1927 Aclis cubana (Bartsch, 1911) Aclis dalli Bartsch, 1911 Aclis egregia Dall, 1889 Aclis eolis Bartsch, 1947 Aclis georgiana Dall, 1927 Aclis hendersoni Dall, 1927 Aclis hyalina Watson, 1880 Aclis lata Dall, 1889 Aclis marguerita (Bartsch, 1947) Aclis nucleata Dall, 1889 Aclis occidentalis (Hemphill, 1894) Aclis pendata Dall, 1927 Aclis pyramida Dall, 1927 Aclis rhyssa Dall, 1927 Aclis rushi Bartsch, 1911 Aclis shepardiana Dall, 1919 Aclis stilifer Dall, 1927 Aclis striata A. E. Verrill, 1880 Aclis tenuis A. E. Verrill, 1882 Aclis turrita (Carpenter, 1864) Aclis verrilli Bartsch, 1911 Aclis walleri Jeffreys, 1867 Aclistothyra atlantica McGinty, 1955 Acmaea acutapex S. S. Berry, 1957 Acmaea antillarum (Sowerby, 1831) Acmaea apicina Dall, 1879 Acmaea atracta Carpenter, 1857 Acmaea conus Test, 1945 Acmaea dalliana (Philippi, 1891) Acmaea depicta Hinds, 1842 Acmaea discors (Philippi, 1849) Acmaea fascicularis (Menke, 1851) Acmaea funiculata (Carpenter, 1864) Acmaea instabilis (Gould, 1846) Acmaea leucopleura Gmelin, 1791 Acmaea limatula Carpenter, 1864 Acmaea marcusi Righi, 1966 Acmaea mitella Menke, 1847 Acmaea mitra Eschscholtz, 1833 Acmaea noronhensis E. A. Smith Acmaea paleacea Gould, 1853 Acmaea pediculus (Philippi, 1846) Acmaea pustulata Helbling, 1779 Acmaea rosea Dall, 1872 Acmaea stanfordiana (S. S. Berry, 1960) Acmaea strongiana Hertlein, 1958 Acmaea subrugosa Orbigny, 1846 Acmaea sybaritica Dall, 1871 Acmaea triangularis (Carpenter, 1864) Acmaea turveri Hertlein and Strong, 1951 Acostaea rivolii (Deshayes, 1827) Acroloxus coloradensis (J. Henderson, 1930) Acteocina angustior Baker and Hanna, 1927 Acteocina atrata P. S. Mikkelsen and P. M. Mikkelsen, 1984 Acteocina bermudensis (Vanatta, 1901) Acteocina bidentata (d'Orbigny, 1841) Acteocina bullata (Kiener, 1834) Acteocina canaliculata (Say, 1826) Acteocina candei (d'Orbigny, 1841) Acteocina carinata (Carpenter, 1856) Acteocina cerealis (Gould, 1853) Acteocina culcitella (Gould, 1853) Acteocina eburnea A. E. Verrill, 1885 Acteocina eximia (Baird, 1863) Acteocina harpa (Dall, 1871) Acteocina hawaiensis Acteocina inculta (Gould, 1855) Acteocina infrequens (C. B. Adams, 1852) Acteocina intermedia Willett, 1928 Acteocina lepta Woodring, 1928 Acteocina magdalensis (Dall, 1919) Acteocina oldroydi Dall, 1925 Acteocina oryza (Totten, 1835) Acteocina perplicatus Dall, 1889 Acteocina recta (d'Orbigny, 1841) Acteocina smirna Dall, 1919 Acteon candens Rehder, 1939 Acteon cumningi A. Adams, 1854 Acteon danaida Dall, 1881 Acteon delicatus Dall, 1889 Acteon finlayi Stearns, 1898 Acteon hebes Acteon incisus Dall, 1881 Acteon juvenis Dall, 1927 Acteon lacunatus Dall, 1927 Acteon liostracoides Dall, 1927 Acteon melampoides Dall, 1881 Acteon parallelus Dall, 1927 Acteon particolor Dall, 1927 Acteon perforatus Dall, 1881 Acteon propius Dall, 1927 Acteon pusillus (Forbes, 1844) Acteon semicingulata Dall, 1927 Acteon tornatilis (Linnaeus, 1758) Acteon traskii Stearns, 1898 Actinonaias computata (Crosse & Fischer, 1894) Actinonaias coyensis (Pilsbry, 1910) Actinonaias medellina (Lea, 1838) Actinonaias moctezumensis (Pilsbry, 1910) Actinonaias sapotalensis (Lea, 1841) Actinonaias signata (Pilsbry, 1910) Actinonaias undivaga (Pilsbry, 1910) Aculamprotula coreana (Martens, 1886) Aculamprotula fibrosa (Heude, 1877) Aculamprotula grandidens (Lea, 1862) Aculamprotula nodulosa (Wood, 1815) Aculamprotula polysticta (Heude, 1877) Aculamprotula scripta (Heude, 1875) Aculamprotula tientsinensis (Crosse & Debeaux, 1863) Aculamprotula tortuosa (Lea, 1865) Aculamprotula zonata (Heude, 1883) Acuticosta chinensis (Lea, 1868) Acuticosta ovata (Simpson, 1900) Acuticosta retiaria (Heude, 1883) Acuticosta sichuanica Zeng & Liu, 1989 Acuticosta trisulcata (Heude, 1883) Adalaria albopapillosa (Dall, 1871) Adalaria jannae Millen, 1987 Adalaria loveni (Adler and Hancock, 1862) Adalaria pacifica Bergh, 1880 Adalaria proxima (Alder and Hancock, 1854) Adalaria tschuktschica Krause, 1885 Adalaria virescens Bergh, 1880 Addisonia brophyi J. H. McLean, 1985 Addisonia excentrica (Tiberi, 1857) Addisonia lateralis (Requien, 1848) Addisonia paradoxa Dall, 1882 Adipicola simpsoni (Marshall, 1900) Admete californica (Dall, 1908) Admete couthouyi (Jay, 1839) Admete gracilior (Carpenter, 1869) Admete laevior Leche, 1878 Admete microscopica (Dall, 1889) Admete microsoma (Dall, 1908) Admete nodosa Verrill and Smith, 1885 Admete regina Dall, 1911 Admete viridula (Fabricius, 1780) Adontorhina cyclia S. S. Berry, 1947 Adontorhina sphaericosa Scott, 1986 Adrana notabilis Rehder, 1939 Adrana scaphoides Rehder, 1939 Adrana tellinoides (Sowerby, 1823) Adula californiensis (Philippi, 1847) Adula diegensis (Dall, 1911) Adula falcata (Gould, 1851) Adula gruneri (Philippi, 1851) Adula schmidtii (Schrenck, 1867) Aegires albopunctatus MacFarland, 1905 Aegires albus Thiele, 1912 Aegires citrinus (Bergh, 1875) Aegires exeches Fahey and Gosliner, 2004 Aegires flores Fahey and Gosliner, 2004 Aegires gardineri (Eliot, 1906) Aegires gomezi Ortea, Luque and Templado, 1990 Aegires hapsis Fahey and Gosliner, 2004 Aegires incisus (Sars, 1878) Aegires incusus Fahey and Gosliner, 2004 Aegires lemoncello Fahey and Gosliner, 2004 Aegires leuckartii Verany, 1853 Aegires malinus Fahey and Gosliner, 2004 Aegires minor (Eliot, 1904) Aegires ninguis Fahey and Gosliner, 2004 Aegires ortizi Templado, Luque and Ortea, 1987 Aegires palensis Ortea, Luque and Templado, 1990 Aegires petalis Fahey and Gosliner, 2004 Aegires pruvotfolae Fahey and Gosliner, 2004 Aegires punctilucens (d'Orbigny, 1837) Aegires serenae (Gosliner and Behrens, 1997) Aegires sublaevis Odhner, 1932 Aegires villosus Farran, 1905 Aeolidia papillosa (Linnaeus, 1761) Aeolidiella alderi Aeolidiella chromosoma (Cockerell, 1905) Aeolidiella glauca (Alder and Hancock, 1845) Aeolidiella indica Bergh, 1888 Aeolidiella lurana Marcus and Marcus, 1967 Aeolidiella occidentalis Bergh, 1875 Aeolidiella olivae MacFarland, 1966 Aeolidiella sanguinea (Norman, 1877) Aeolidiella takanosimensis Baba, 1930 Aequipecten glyptus (A. E. Verrill, 1882) Aequipecten heliacus (Dall, 1925) Aequipecten lineolaris (Lamarck, 1819) Aequipecten opercularis (Linnaeus, 1758) Aesopus arestus Dall, 1919 Aesopus babbi (Tryon, 1882) Aesopus chrysalloideus (Carpenter, 1864) Aesopus eurytoideus (Carpenter, 1864) Aesopus fuscostrigatus (Carpenter, 1864) Aesopus goforthi Dall, 1912 Aesopus japonicus Gould, 1860 Aesopus metcalfei Reese Aesopus myrmecoon Dall, 1916 Aesopus sanctus Dall, 1919 Aesopus stearnsii (Tryon, 1883) Aesopus subturritus (Carpenter, 1864) Aesopus xenicus Pilsbry and Lowe, 1932 Aforia circinata (Dall, 1873) Aforia goodei (Dall, 1890) Agathotoma candidissima (C. B. Adams, 1845) Agathotoma densestriata (C. B. Adams, 1850) Agathotoma stellata (Morch, 1860) Agatrix agassizii (Dall, 1889) Aglaja diomedea (Bergh, 1894) Aglaja ocelligera (Bergh, 1893) Agriopoma texasianum (Dall, 1892) Akera bayeri Marcus and Marcus, 1967 Akera bullata O. F. Muller, 1776 Akera thompsoni Olsson and McGinty, 1951 Akiodoris lutescens Bergh, 1880 Alaba catalinensis Bartsch, 1920 Alaba incerta (d'Orbigny, 1842) Alaba jeanettae Bartsch, 1910 Alaba serrana A. G. Smith and Gordon, 1948 Alasmidonta arcula (Lea, 1838) Alasmidonta atropurpurea (Rafinesque, 1831) Alasmidonta marginata Say, 1818 Alasmidonta mccordi Athearn, 1964 Alasmidonta raveneliana (Lea, 1834) Alasmidonta robusta Clarke, 1981 Alasmidonta triangulata (Lea, 1858) Alasmidonta undulata (Say, 1817) Alasmidonta uwharriensis Whelan, Perkins & Mays in Whelan et al., 2023 Alasmidonta varicosa (Lamarck, 1819) Alasmidonta wrightiana (Walker, 1901) Alasminota etowaensis (Conrad, 1849) Alathyria condola Iredale, 1943 Alathyria jacksoni Iredale, 1934 Alathyria pertexta Iredale, 1934 Alathyria profuga (Gould, 1850) Alcadia striata (Lamarck, 1822) Alderia modesta (Loven, 1844) Aldisa albomarginata Millen, 1984 Aldisa cooperi Robilliard and Baba, 1972 Aldisa sanguinea (J. G. Cooper, 1863) Aldisa tara Millen, 1984 Aldisa zetlandica (Alder and Hancock, 1854) Alexandromenia crassa Odhner, 1921 Alexania floridana (Pilsbry, 1945) Algamorda newcombiana (Hempill, 1876) Alia carinata (Hinds, 1844) Alia tuberosa (Carpenter, 1864) Aligena diegoana Hertlein and Grant, 1972 Aligena elevata (Stimpson, 1851) Aligena texasiana Harry, 1969 Allogona lombardii A. G. Smith, 1943 Allogona profunda (Say, 1821) Allogona ptychophora (A. D. Brown, 1870) Allogona townsendiana (I. Lea, 1838) Allonautilus perforatus (Conrad, 1849) Allonautilus scrobiculatus (Lightfoot, 1786) Allopeas clavulinum (Potiez and Michaud, 1838) Allopeas gracile (Hutton, 1834) Allopeas mauritianum (Pfeiffer, 1852) Alluroteuthis antarcticus Odhner, 1923 Alvania aberrans (C. B. Adams, 1850) Alvania abyssicola (Forbes, 1850) Alvania acuticostata (Dall, 1889) Alvania aequisculpta Keep, 1887 Alvania alaskana Dall, 1886 Alvania albolirata (Carpenter, 1864) Alvania almo Bartsch, 1911 Alvania apicina Verrill, 1884 Alvania areolata Stimpson, 1851 Alvania auberiana (d'Orbigny, 1842) Alvania aurivilli Dall, 1886 Alvania bakeri Bartsch, 1910 Alvania bartolomensis Bartsch, 1917 Alvania beanii (Hanley, 1844) Alvania brychia (Verrill, 1884) Alvania burrardensis Bartsch, 1921 Alvania campta (Dall, 1927) Alvania cancellata (Da Costa, 1778) Alvania canonica (Dall, 1927) Alvania carinata Mighels and Adams, 1842 Alvania carpenteri (Weinkauff, 1885) Alvania castanella Dall, 1886 Alvania chiriquiensis Olsson and McGinty, 1958 Alvania cimicoides (Forbes, 1844) Alvania compacta (Carpenter, 1864) Alvania contrerasi Jordan, 1909 Alvania cosmia Bartsch, 1911 Alvania dalli Bartsch, 1927 Alvania dinora Bartsch, 1917 Alvania electrina (Carpenter, 1864) Alvania exarata Stimpson, 1851 Alvania filosa Carpenter, 1864 Alvania gallegosi Alvania globula (Moller, 1842) Alvania gradata (Orbigny, 1842) Alvania harpa Verrill, 1882 Alvania herrerae Baker, Hanna, and Strong, 1930 Alvania jeffreysi (Waller, 1864) Alvania karlini A. H. Clarke, 1963 Alvania keenae Gordon, 1939 Alvania kyskaensis Bartsch, 1917 Alvania lactea Alvania lampra (Dall, 1927) Alvania latior (Mighels and C. B. Adams, 1842) Alvania leptalea Verrill, 1884 Alvania lucasana (Baker, Hanna, and Stong, 1930) Alvania microglypta Haas, 1943 Alvania moerchi (Collins, 1886) Alvania monserratensis (Baker, Hanna, and Strong, 1930) Alvania montereyensis Bartsch, 1911 Alvania multilineata (Stimpson, 1851) Alvania nigriscens Bartsch and Rehder, 1939 Alvania oldroydae Bartsch, 1911 Alvania pedroana Bartsch, 1911 Alvania precipitata (Dall, 1889) Alvania pseudoareolata Waren, 1974 Alvania pseudosyngenes Waren, 1973 Alvania punctura Alvania purpurea Dall, 1871 Alvania rosana Bartsch, 1911 Alvania sandersoni Verrill, 1884 Alvania sanjuanensis Bartsch, 1920 Alvania semistriata (Montagu, 1808) Alvania subsoluta (Aradas, 1847) Alvania trachisma Bartsch, 1911 Alvania tumida Carpenter, 1857 Alvania turgida Verrill, 1880 Alvania wyvillethomosoni (Friele, 1877) Alvania xanthias (Watson, 1886) Amaea mitchelli (Dall, 1896) Amaea retifera (Dall, 1889) Amauropsis islandica (Gmelin, 1791) Amauropsis purpurea Dall, 1871 Amblema elliottii (Lea, 1856) Amblema neislerii (Lea, 1858) Amblema plicata (Say, 1817) Ameloctopus litoralis Norman, 1992 Americardia biangulata (Broderip and G. B. Sowerby I, 1829) Americardia guppyi (Thiele, 1910) Americardia media (Linnaeus, 1758) Americhiton andersoni (Watters, 1981) Amiantis callosa (Conrad, 1837) Amicula amiculata (Pallas, 1787) Amicula pallasii (Middendorff, 1847) Amicula vestita (Broderip and G. B. Sowerby I, 1829) Ammonicera rota Ammonitella yatesii (J. G. Cooper, 1968) Amnicola clarkei Pilsbry, 1917 Amnicola cora Hubricht, 1979 Amnicola dalli (Pilsbry and Beecher, 1892) Amnicola decisus Haldeman, 1845 Amnicola limosus (Say, 1817) Amnicola rhombostoma F. G. Thompson, 1968 Amnicola stygius Hubricht, 1971 Amphigyra alabamensis Pilsbry, 1906 Amphissa acutecostata (Philippi, 1844) Amphissa bicolor Dall, 1892 Amphissa columbiana Dall, 1916 Amphissa cymata Dall, 1916 Amphissa haliaeeti (Jeffreys, 1867) Amphissa reticulata Dall, 1916 Amphissa undata (Carpenter, 1864) Amphissa versicolor Dall, 1871 Amphithalamus inclusus Carpenter, 1864 Amphithalamus lacunatus Carpenter, 1864 Amphithalamus stephensae Amphithalamus tenuis Amphithalamus vallei Aguayo and Jaume, 1947 Amphitretus pelagicus Hoyle, 1885 Amuranodonta kijaensis Moskvicheva, 1973 Amusium papyraceum (Gabb, 1873) Amygdalum dendriticum Muhlfeld, 1811 Amygdalum pallidulum (Dall, 1916) Amygdalum papyrium (Conrad, 1846) Amygdalum politum (A. E. Verrill and S. Smith, 1880) Amygdalum sagittatum Rehder, 1934 Anabathron contabulata Frauenfeld, 1867 Anabathron muriel Bartsch and Rehder, 1939 Anachis acuta Stearn, 1873 Anachis adelinae (Tryon, 1883) Anachis albella C. B. Adams, 1850 Anachis avara (Say, 1822) Anachis bicanaliferum (Sowerby, 1832) Anachis catenata (Sowerby, 1844) Anachis coronata (Sowerby, 1832) Anachis diminuta (C. B. Adams, 1852) Anachis fayae Keen, 1971 Anachis fenneli Radwin, 1968 Anachis floridana Rehder, 1939 Anachis gaskoini Carpenter, 1857 Anachis hilli Pilsbry and Lowe, 1932 Anachis hotessieriana (d'Orbigny, 1842) Anachis iontha (Ravenel, 1861) Anachis lafresnayi (P. Fischer and Bernardi, 1856) Anachis nigricans (Sowerby, 1844) Anachis obesa C. B. Adams, 1845 Anachis penicillata Carpenter, 1865 Anachis petrii Anachis pulchella (de Blainville, 1829) Anachis pygmaea (Sowerby, 1832) Anachis rhodae Radwin, 1968 Anachis samanensis Anachis sanfelipensis Lowe, 1935 Anachis semiplicata Stearns, 1873 Anachis similis Dall, 1889 Anachis sparsa (Reeve, 1859) Anachis subturrita Carpenter, 1866 Anachis translirata (Ravenel, 1861) Anachis veleda Duclos, 1846 Anachis vexillum (Reeve, 1858) Anacithara perfecata Anadara auriculata Lamarck Anadara baughmani Hertlein, 1951 Anadara brasiliana (Lamarck, 1819) Anadara chemnitzii (Philippi, 1851) Anadara concinna (Sowerby, 1833) Anadara floridana (Conrad, 1869) Anadara grandis (Broderip and Sowerby, 1829) Anadara lienosa (Say, 1832) Anadara multicostata (G. B. Sowerby I, 1833) Anadara notabilis (Roding, 1798) Anadara nux (Sowerby, 1833) Anadara ovalis (Bruguiere, 1789) Anadara secticostata Reeve, 1844 Anadara transversa (Say, 1822) Anadara tuberculosa (G. B. Sowerby I, 1833) Anadenulus cockerelli (Hemphill, 1890) Anamenia borealis (Koren and Danielssen, 1877) Anatina anatina (Spengler, 1802) Anatoma baxteri J. H. McLean, 1984 Anatoma crispata (Fleming, 1828) Anatoma lyra (S. S. Berry, 1947) Anatoma obtusata (Golikov and Gulbin, 1977) Ancilla glabrata (Linnaeus, 1758) Ancilla lienardi (Bernardi, 1858) Ancilla tankervillii (Swainson, 1825) Ancistrobasis costulata (Watson, 1879) Ancistrobasis depressa (Dall, 1889) Ancistrobasis lusitanica (P. Fischer, 1882) Ancistrocheirus lesueurii (D'Orbigny, 1842 in Férussac and D'Orbigny, 1834-1848) Ancistrolepis beringianus Dall, 1919 Ancistrolepis buccinoidea Ancistrolepis eucosmius (Dall, 1891) Ancistrolepis hirasei Ancistrolepis hirsuta Ancistrolepis magna (Dall, 1895) Ancistroteuthis lichtensteini (Férussac, 1835 in Férussac and D'Orbigny, 1834-1848) Ancotrema hybridum (Ancey, 1888) Ancotrema sportella (Gould, 1846) Ancotrema voyanum (Newcomb, 1865) Ancotrema zopherum Roth, 1990 Ancula evelinae Er. Marcus, 1961 Ancula gibbosa (Risso, 1818) Ancula lentiginosa Farmer, 1964 Ancula pacifica MacFarland, 1905 Ancylus fluviatilis Müller, 1774 Anemina arcaeformis (Heude, 1877) Anemina euscaphys (Heude, 1879) Anemina fluminea (Heude, 1877) Anemina globosula (Heude, 1878) Anguispira alabama (G. H. Clapp, 1920) Anguispira alternata (Say, 1816) Anguispira cumberlandiana (I. Lea, 1840) Anguispira fergusoni (Bland, 1861) Anguispira jessica Kutchka, 1938 Anguispira knoxensis (Pilsbry, 1899) Anguispira kochi (Pfeiffer, 1821) Anguispira macneilli Walker, 1928 Anguispira mordax (Shuttleworth, 1852) Anguispira nimapuna H. B. Baker, 1932 Anguispira picta (G. H. Clapp, 1920) Anguispira rugoderma Hubricht, 1938 Anguispira strongyloides (Pfeiffer, 1854) Angustipes ameghini (Gambetta, 1923) Anidolyta duebenii (Loven, 1846) Anidolyta spongotheras (Bertsch, 1980) Anisodonta carolina Dall, 1900 Anisodoris lentiginosa Millen, 1982 Anisodoris nobilis (MacFarland, 1905) Anisodoris prea Ev. Marcus and Er. Marcus, 1967 Anisodoris worki Ev. Marcus and Er. Marcus, 1967 Anodonta anatina (Linnaeus, 1758) Anodonta californiensis Lea, 1852 Anodonta cygnea (Linnaeus, 1758) Anodonta exulcerata Porro, 1838 Anodonta impura Say, 1829 Anodonta kennerlyi Lea, 1860 Anodonta lurulenta Morelet, 1849 Anodonta nuttalliana Lea, 1838 Anodonta oregonensis Lea, 1838 Anodonta seddoni Gürlek, Kebapci & Lopes-Lima in Lopes-Lima et al., 2021 Anodonta vescoiana Bourguignat, 1857 Anodontia alba Link, 1807 Anodontia edentula (Linnaeus, 1758) Anodontia edentuloides (Verrill, 1870) Anodontia philippiana (Reeve, 1850) Anodontites aroana H.B. Baker, 1930 Anodontites carinata (Dunker, 1858) Anodontites colombiensis Marshall, 1922 Anodontites crispata Bruguière, 1792 Anodontites cylindracea (Lea, 1838) Anodontites depexus (Martens, 1900) Anodontites elongata (Swainson, 1823) Anodontites ferrarisii (d'Orbigny, 1835) Anodontites guanarensis Marshall, 1927 Anodontites iheringi (Clessin, 1882) Anodontites inaequivalva (Lea, 1868) Anodontites infossus H.B. Baker, 1930 Anodontites leotaudi (Guppy, 1866) Anodontites lucida (d'Orbigny, 1835) Anodontites moricandii (Lea, 1860) Anodontites obtusa (Spix & Wagner, 1827) Anodontites patagonica (Lamarck, 1819) Anodontites pittieri Marshall, 1922 Anodontites schomburgianus (Sowerby, 1870) Anodontites solenidea (Sowerby, 1867) Anodontites tehuantepecensis (Crosse & Fischer, 1893) Anodontites tenebricosa (Lea, 1834) Anodontites tortilis (Lea, 1852) Anodontites trapesialis (Lamarck, 1819) Anodontites trapezea (Spix & Wagner, 1827) Anodontites trigona (Spix & Wagner, 1827) Anodontoides denigratus (Lea, 1852) Anodontoides ferussacianus (Lea, 1834) Anomalocardia auberiana (d'Orbigny, 1842) Anomalocardia brasiliana (Gmelin, 1791) Anomalocardia leptalea (Dall, 1894) Anomia chinensis Philippi, 1849 Anomia ephippium Linnaeus, 1758 Anomia peruviana d'Orbigny, 1846 Anomia simplex D'Orbigny, 1842 Anomia squamula Linnaeus, 1758 Antalis abyssorum (M. Sars, 1858) Antalis agilis M. Sars, 1872 Antalis antillarum (d'Orbigny, 1842) Antalis bartletti (Henderson, 1920) Antalis berryi (A. G. Smith and M. Gordon, 1948) Antalis callithrix (Dall, 1889) Antalis ceratum (Dall, 1881) Antalis circumcinctum (Watson, 1879) Antalis entale (Linnaeus, 1758) Antalis novemcostata (Lamarck, 1818) Antalis occidentale (Stimpson, 1851) Antalis panormum (Chenu, 1843) Antalis pilsbryi (Rehder, 1942) Antalis pretiosum (G. B. Sowerby II, 1860) Antalis taphrium (Dall, 1889) Antalis tubulatum (Henderson, 1920) Antalis vulgaris (da Costa, 1778) Anticlimax athleenae (Pilsbry and McGinty, 1946) Anticlimax pilsbryi (McGinty, 1945) Antillophos beauii (P. Fischer and Bernardi, 1857) Antillophos candeanus (d'Orbigny, 1842) Antiplanes abarbareus Dall, 1919 Antiplanes beringi (Aurivillius, 1885) Antiplanes briseis Dall, 1919 Antiplanes bulimoides Dall, 1919 Antiplanes catalinae (Raymond, 1904) Antiplanes diaulax (Dall, 1908) Antiplanes hyperia Dall, 1919 Antiplanes kamchatica Dall, 1919 Antiplanes litus Dall, 1919 Antiplanes major Bartsch, 1944 Antiplanes motojimai (Habe, 1958) Antiplanes piona (Dall, 1902) Antiplanes rotula Dall, 1921 Antiplanes sanctiioannis (E. A. Smith, 1875) Antiplanes santarosanus (Dall, 1902) Antiplanes thalea (Dall, 1902) Antiplanes vinosus (Dall, 1874) Antiplanes voyi (Gabb, 1866) Antiplanes willetti S. S. Berry, 1953 Antisabia foliaceus Antrobia culveri Hubricht, 1971 Antrorbis breweri Hershler and F. G. Thompson, 1990 Antrorbis tennesseensis Perez, Shoobs, Gladstone and Niemiller, 2019 Antroselates spiralis Hubricht, 1963 Aorotrema cistronium (Dall, 1889) Aorotrema erraticum Pilsbry and McGinty, 1945 Aorotrema humboldti Aorotrema pontogenes (Schwengel and McGinty, 1942) Aperiovula abbotti Cate, 1973 Aphaostracon asthenes F. G. Thompson, 1968 Aphaostracon chalarogyrus F. G. Thompson, 1968 Aphaostracon hypohyalinum F. G. Thompson, 1968 Aphaostracon monas (Pilsbry, 1899) Aphaostracon pachynotum F. G. Thompson, 1968 Aphaostracon pycnus F. G. Thompson, 1968 Aphaostracon rhadinum F. G. Thompson, 1968 Aphaostracon theiocrenetum F. G. Thompson, 1968 Aphaostracon xynoelictum F. G. Thompson, 1968 Aphelodoris antillensis (Bergh, 1879) Aphrodoctopus schultzei (Hoyle, 1910) Aplexa elongata (Say, 1821) Aplexa hypnorum (Linnaeus, 1758) Aplysia brasiliana Rang, 1828 Aplysia californica J. G. Cooper, 1863 Aplysia cervina (Dall and Simpson, 1901) Aplysia dactylomela Rang, 1828 Aplysia depilans Gmelin, 1791 Aplysia donca Ev. Marcus and Er. Marcus, 1960 Aplysia fasciata Poiret, 1798 Aplysia geographica (A. Adams and Reeve, 1850) Aplysia juliana Quoy and Gaimard, 1832 Aplysia morio (A. E. Verrill, 1901) Aplysia parvula Morch, 1863 Aplysia punctata Aplysia reticulopoda Beeman, 1960 Aplysia vaccaria Winkler, 1955 Aplysiopsis enteromorphae (Cockerell and Eliot, 1905) Aplysiopsis olivae Mcfarland, 1966 Aplysiopsis smithi (Er. Marcus, 1961) Aplysiopsis zebra K. B. Clark, 1982 Aporrhais occidentalis Beck, 1836 Aporrhais pespelicanis Linnaeus, 1758 Aporrhais serresiana Appalachina chilhoweensis (J. Lewis, 1870) Appalachina sayana (Pilsbry, 1906) Aquilonaria turneri Dall, 1886 Arca imbricata Bruguiere, 1789 Arca lactea Arca mutabilis Sowerby, 1833 Arca reticulata Gmelin, 1791 Arca tetragona Poli, 1795 Arca zebra (Swainson, 1833) Archidoris montereyensis (J. G. Cooper, 1863) Archidoris nobilis Archidoris odhneri (MacFarland, 1966) Archidoris pseudoargus (Rapp, 1827) Archiphysa ashmuni Taylor, 2003 Archiphysa sonomae Taylor, 2003 Architectonica nobilis Roding, 1798 Architectonica peracuta (Dall, 1889) Architectonica perspectiva (Linnaeus, 1758) Architectonica placentalis (Hinds, 1844) Architeuthis dux Steenstrup in Harting, 1860 Architeuthis hartingii (Verrill, 1875) Architeuthis japonica Pfeffer, 1912 Architeuthis kirkii Robson, 1887 Architeuthis physeteris (Joubin, 1900) Architeuthis sanctipauli (Velain, 1877) Architeuthis verrilli Kirk, 1882 Arcidens confragosus (Say, 1829) Arcidens wheeleri (Ortmann & Walker, 1912) Arcidopsis footei (Theobald, 1876) Arcinella arcinella (Linnaeus, 1767) Arcinella cornuta Conrad, 1866 Arcopagia crassa (Pennant, 1777) Arcopsis adamsi (Dall, 1886) Arcopsis solida (G. B. Sowerby I, 1833) Arctica islandica (Linnaeus, 1767) Arctomelon stearnsii (Dall, 1872) Arctomelon tamikoae (Kosuge, 1970) Arculus sykesi (Chaster, 1895) Arene adusta J. H. McLean, 1970 Arene bairdii (Dall, 1889) Arene balboai (Strong and Hertlein, 1939) Arene brasiliana (Dall, 1927) Arene briareus (Dall, 1881) Arene californica (Dall, 1908) Arene carinata Carpenter, 1857 Arene coronadensis (Stohler, 1959) Arene cruentata (Megerle von Muhlfeld, 1829) Arene diegensis J. H. McLean, 1964 Arene farallonensis (A. G. Smith, 1952) Arene ferruginosa J. H. McLean, 1970 Arene fricki Crosse, 1865 Arene lepidotera (J. H. Mclean, 1970) Arene lucasensis Strong, 1933 Arene miniata (Dall, 1889) Arene riisei Rehder, 1943 Arene stellata J. H. McLean, 1970 Arene tricarinata (Stearns, 1872) Arene variabilis (Dall, 1889) Arene venusta (Woodring, 1928) Arene venustula Aguayo and Rehder, 1936 Argonauta argo Linnaeus, 1758 Argonauta bottgeri Maltzan, 1881 Argonauta cornuta Conrad, 1854 Argonauta hians Lightfoot, 1786 Argonauta nodosa Lightfoot, 1786 Argonauta nouryi Lorois, 1852 Argonauta pacifica Dall, 1871 Argopecten aequisulcatus (Carpenter, 1864) Argopecten gibbus (Linnaeus, 1758) Argopecten irradians (Lamarck, 1819) Argopecten lineolaris (Lamarck, 1819) Argopecten nucleus (Born, 1778) Argopecten ventricosus (G. B. Sowerby II, 1842) Ariolimax californicus J. G. Cooper, 1872 Ariolimax columbianus (Gould, 1851) Ariolimax dolichophallus Mead, 1943 Arion ater (Linnaeus, 1758) Arion circumscriptus Johnston, 1828 Arion distinctus Mabille, 1868 Arion fasciatus (Nilsson, 1823) Arion hortensis Ferussac, 1819 Arion intermedius (Normand, 1852) Arion owenii Davies, 1979 Arion rufus (Linnaeus, 1758) Arion silvaticus Lohmander, 1937 Arion subfuscus (Draparnaud, 1805) Armina californica (J. G. Cooper, 1863) Armina cordellensis Gosliner and Behrens, 1996 Armina loveni Armina mulleri (von Ihering, 1886) Armina tigrina Rafinesque, 1814 Armina wattla Ev. Marcus and Er. Marcus, 1967 Arotonaias cyrenoides (Philippi, 1847) Arotonaias encarpa (Lea, 1868) Arotonaias gabbiana (Lea, 1868) Asaphis deflorata (Linnaeus, 1758) Ascobulla ulla (Er. Marcus and Ev. Marcus, 1970) Ashmunella amblya Pilsbry, 1940 Ashmunella angulata Pilsbry, 1905 Ashmunella animasensis Vagvolgyi, 1974 Ashmunella ashmuni (Dall, 1897) Ashmunella auriculata Vagvolgyi, 1974 Ashmunella bequaerti Clench and W. B. Miller, 1966 Ashmunella binneyi Pilsbry and Ferriss, 1917 Ashmunella carlsbadensis Pilsbry, 1932 Ashmunella chiricahuana (Dall, 1896) Ashmunella cockerelli Pilsbry and Ferriss, 1917 Ashmunella danielsi Pilsbry and Ferriss, 1915 Ashmunella edithae Pilsbry and Cheatum, 1951 Ashmunella esuritor Pilsbry, 1915 Ashmunella ferrissi Pilsbry, 1905 Ashmunella harrisi Metcalf and Smartt, 1977 Ashmunella hebardi Pilsbry and Vanatta, 1923 Ashmunella kochii G. H. Clapp, 1908 Ashmunella lenticula Gregg, 1953 Ashmunella lepiderma Pilsbry and Ferriss, 1910 Ashmunella levettei (Bland, 1881) Ashmunella macromphala Vagvolgyi, 1974 Ashmunella mearnsii (Dall, 1895) Ashmunella mendax Pilsbry and Ferriss, 1917 Ashmunella mogollonensis Pilsbry, 1905 Ashmunella mudgei Cheatum, 1971 Ashmunella organensis Pilsbry, 1936 Ashmunella pasonis (Drake, 1951) Ashmunella pilsbryana Ferriss, 1914 Ashmunella proxima Pilsbry, 1905 Ashmunella pseudodonta (Dall, 1897) Ashmunella rhyssa (Dall, 1897) Ashmunella rileyensis Metcalf and Hurley, 1971 Ashmunella salinasensis Vagvolgyi, 1974 Ashmunella sprouli R. W. Fullington and K. E. Fullington, 1978 Ashmunella tetrodon Pilsbry and Ferriss, 1915 Ashmunella thomsoniana (Ancey, 1887) Ashmunella todseni Metcalf and Smartt, 1977 Ashmunella varicifera Ancey, 1901 Ashmunella walkeri Ferriss, 1904 Aspatharia chaiziana (Rang, 1835) Aspatharia dahomeyensis (Lea, 1859) Aspatharia divaricata (Martens, 1897) Aspatharia droueti (Chaper, 1885) Aspatharia ganciniensis (Rochebrune, 1886) Aspatharia marnoi (Jickeli, 1874) Aspatharia pangallensis (Rochebrune, 1882) Aspatharia pfeifferiana (Bernardi, 1860) Aspatharia rochebrunei (Jousseaume, 1886) Aspatharia rugifera (Dunker, 1858) Aspatharia subreniformis (Sowerby, 1867) Aspella abyssicola (Crosse, 1865) Aspella anceps (Lamarck, 1822) Aspella bakeri Hertlein and Strong, 1951 Aspella castor Radwin and D'Attilio, 1976 Aspella elizabethae (McGinty, 1940) Aspella paupercula (C. B. Adams, 1850) Aspella senex Dall, 1903 Asperiscala bellastriata (Carpenter, 1864) Asperiscala cookeana (Dall, 1917) Asperiscala lowei (Dall, 1906) Assiminea californica (Tryon, 1865) Assiminea grayana Fleming, 1828 Assiminea infima S. S. Berry, 1947 Assiminea pecos Taylor, 1987 Assiminea succinea (Pfeiffer, 1840) Assiminea translucens (Carpenter, 1864) Astarte acuticostata J. G. Jeffreys, 1881 Astarte arctica (J. E. Gray, 1824) Astarte bennetti Dall, 1903 Astarte borealis (Schumacher, 1817) Astarte castanea (Say, 1822) Astarte compacta Carpenter, 1864 Astarte crebricostata (Da Costa, 1778) Astarte crenata (J. E. Gray, 1824) Astarte elliptica (T. Brown, 1827) Astarte esquimalti (Baird, 1863) Astarte filatovae Habe, 1964 Astarte globula Dall, 1886 Astarte laurentiana Astarte liogona Dall, 1903 Astarte mirabilis (Dall, 1871) Astarte montagui (Dillwyn, 1817) Astarte nana Dall, 1886 Astarte polaris Dall, 1903 Astarte quadrans Gould, 1841 Astarte smithii Dall, 1886 Astarte sulcata (Decosta, 1778) Astarte triangularis Astarte undata Gould, 1841 Astarte vernicosa Dall, 1903 Astarte willetti Dall, 1917 Asterophila japonica Randall and Heath, 1912 Asthelys munda (Watson, 1879) Asthenothaerus diegensis (Dall, 1915) Asthenothaerus hemphilli Dall, 1886 Asthenothaerus villosior Carpenter, 1864 Astraea olivaceae (Wood, 1828) Astralium brevispina (Lamarck, 1822) Astralium phoebium (Röding, 1798) Astyris amiantis Dall, 1919 Astyris aurantiaca Dall, 1871 Astyris diaphana A. E. Verrill, 1882 Astyris gausapata (Gould, 1850) Astyris hypodra (Dall, 1916) Astyris lunata (Say, 1826) Astyris multilineata (Dall, 1889) Astyris profundi (Dall, 1889) Astyris pura A. E. Verrill, 1882 Astyris raveneli (Dall, 1889) Astyris rosacea (Gould, 1839) Atagema alba (O'Donoghue, 1927) Atagema gibba Pruvot-fol, 1951 Atagema prea (Ev. Marcus and Er. Marcus, 1967) Atagema quadrimaculata Collier, 1963 Athearnia anthonyi (Redfield, 1854) Athearnia crassa (Haldeman, 1841) Atlanta brunnea J. E. Gray, 1850 Atlanta californiensis Seapy and Richter, 1993 Atlanta gaudichaudi Souleyet, 1852 Atlanta helicinoidea J. E. Gray, 1850 Atlanta inclinata J. E. Gray, 1850 Atlanta inflata J. E. Gray, 1850 Atlanta lesueurii J. E. Gray, 1850 Atlanta peronii Lesueur, 1817 Atlanta pulchella Verrill, 1884 Atlanta quoyii Gray, 1850 Atlanta turriculata D'Orbigny, 1836 Atlanticoncha ochracea (Say, 1817) Atrina fragilis (Pennant, 1777) Atrina oldroydii Dall, 1901 Atrina rigida (Lightfoot, 1786) Atrina seminuda (Lamarck, 1819) Atrina serrata (G. B. Sowerby I, 1825) Atrina texta Hertlein, Hanna and Strong, 1943 Attiliosa philippiana (Dall, 1889) Atys caribaeus (d'Orbigny, 1841) Atys castus Carpenter, 1864 Atys curta Atys nonscriptus (A. Adams, 1850) Atys obscuratus Dall, 1896 Atys riiseanus Morch, 1875 Atys sandersoni Dall, 1881 Atys semistriata Austraeolis catina Ev. Marcus and Er. Marcus, 1967 Austroneaera semipellucida (Kuroda, 1948) Austrorossia antillensis (Voss, 1955) Austrorossia australis (Berry, 1918) Austrorossia bipapillata (Sasaki, 1920) Austrorossia enigmatica (Robson, 1924) Austrorossia mastigophora (Chun, 1915) Austrotrophon catalinensis (I. S. Oldroyd, 1927) Austrotrophon cerrosensis Axelella smithii (Dall, 1888) Axinodon redondoensis (T. A. Burch, 1941) Axinodon symmetros (Jeffreys, 1876) Axinopsida cordata (A. E. Verrill and Bush, 1898) Axinopsida orbiculata (G. O. Sars, 1878) Axinopsida serricata (Carpenter, 1864) Axinopsida viridis (Dall, 1901) Axinulus careyi Bernard, 1979 Axinulus eumyaria (M. Sars, 1870) Axinulus redondoensis (T. A. Burch, 1941) Babakina festiva (Roller, 1972) Babelomurex dalli (Emerson and D'Attilio, 1963) Babelomurex mansfieldi (McGinty, 1940) Babelomurex oldroydi (I. S. Oldroyd, 1929) Bactrocythara asarca (Dall and Simpson, 1901) Bactrocythara obtusa Guppy, 1896 Baeolidia benteva Er. Marcus, 1958 Baeolidia cryoporos Bouchet, 1977 Bailya anomalus (Hinds, 1844) Bailya intricata (Dall, 1884) Bailya parva (C. B. Adams, 1850) Bailya weberi (Watters, 1983) Balcis alba Balcis compacta Balcis devians Balcis philippi Balcis thersites (Carpenter, 1864) Balconorbis uvaldensis Hershler and Longley, 1986 Balwantia soleniformis (Benson, 1836) Bankia bipennata (Turton, 1819) Bankia carinata (J. E. Gray, 1827) Bankia cieba Clench and Turner, 1946 Bankia destructa Clench and Turner, 1946 Bankia fimbriatula Moll and Roch, 1931 Bankia fosteri Clench and Turner, 1946 Bankia gouldi (Bartsch, 1908) Bankia martensi (Stempell, 1899) Bankia setacea (Tryon, 1863) Bankia sibirica Roch, 1934 Bankia zeteki Bartsch, 1921 Baptodoris mimetica Gosliner, 1991 Barbatia cancellaria (Lamarck, 1819) Barbatia candida (Helbling, 1779) Barbatia divaricata Barbatia domingensis (Lamarck, 1819) Barbatia reeveana (d'Orbigny, 1846) Barbatia tenera (C. B. Adams, 1845) Barleeia acuta Barleeia alderi (Carpenter, 1856) Barleeia bentleyi Bartsch, 1920 Barleeia californica Bartsch, 1920 Barleeia carpenteri Bartsch, 1920 Barleeia haliotiphila Carpenter, 1864 Barleeia oldroydi Bartsch, 1920 Barleeia sanjuanensis Bartsch, 1920 Barleeia subtenuis Carpenter, 1864 Barleeia tincta Guppy, 1895 Barleeia unifasciata Barnea candida Linnaeus, 1758 Barnea parva Pennant, 1777 Barnea subtruncata (G. B. Sowerby I, 1834) Barnea truncata (Say, 1822) Bartlettia stefanensis (Moricand, 1856) Bartschia agassizi (Clench and Aguayo, 1941) Bartschia canetae (Clench and Aguayo, 1944) Bartschia fusiformis (Clench and Aguayo, 1941) Barynaias caldwellii (Lea, 1858) Barynaias opacata (Crosse & Fischer, 1893) Barynaias pigerrima (Crosse & Fischer, 1893) Barynaias plexus (Conrad, 1838) Barynaias sallei (Crosse & Fischer, 1893) Basiliomya goreaui Bayer, 1971 Basilissa alta Watson, 1879 Basilissa callisto F. M. Bayer, 1971 Basilissa cinctellum (Dall, 1889) Basilissa rhyssa Dall, 1927 Basilissa watsoni Dall, 1927 Basterotia corbuloidea Dall, 1899 Basterotia elliptica (Recluz, 1850) Basterotia floridana Dall, 1903 Basterotia hertleini Durham, 1950 Basterotia peninsularis (Jordan, 1936) Basterotia quadrata (Hanley, 1843) Bathothauma lyromma Chun, 1906 Bathoxiphus ensiculus (Jeffereys, 1877) Bathyarca anomala (A. E. Verrill and Bush, 1898) Bathyarca frielei (Friele, 1877) Bathyarca glacialis (J. E. Gray, 1824) Bathyarca glomerula (Dall, 1881) Bathyarca grenophia Risso, 1926 Bathyarca inaequalis (Dall, 1927) Bathyarca inaequisculpta (E. A. Smith, 1885) Bathyarca orbiculata (Dall, 1881) Bathyarca pectunculoides (Scacchi, 1833) Bathyarca philippiana (Nyst, 1848) Bathyarca raridentata Bathybela nudator (Locard, 1897) Bathybembix bairdii (Dall, 1889) Bathybuccinum clarki Kantor and Harasewych, 1998 Bathybuccinum ovulum (Dall, 1895) Bathypolypus arcticus (Prosch, 1847) Bathypolypus faeroensis (Russell, 1909) Bathypolypus salebrosus (Sasaki, 1920) Bathypolypus sponsalis (Fischer and Fischer, 1892) Bathypolypus valdiviae (Thiele in Chun, 1915) Bathyteuthis abyssicola Hoyle, 1885 Bathyteuthis bacidifera Roper, 1968 Bathyteuthis berryi Roper, 1968 Bathytoma viabrunnea (Dall, 1889) Batillaria attramentaria (G. B. Sowerby II, 1855) Batillaria minima (Gmelin, 1791) Batillaria zonalis (Bruguiere, 1792) Batoteuthis skolops Young and Roper, 1968 Bellaspira grippi (Dall, 1908) Bellaspira pentagonalis (Dall, 1889) Belonella belone (Chun, 1906) Belonella borealis Nesis, 1972 Bentharca asperula (Dall, 1881) Bentharca nodulosa (O. F. Mueller, 1776) Bentharca sagrinata (Dall, 1886) Bentheledone albida (Berry, 1917) Bentheledone rotunda (Hoyle, 1885) Benthobia tryonii Dall, 1889 Benthoctopus abruptus (Sasaki, 1920) Benthoctopus berryi Robson, 1924 Benthoctopus canthylus Voss and Pearcy, 1990 Benthoctopus ergasticus (Fischer and Fischer, 1892) Benthoctopus eureka (Robson, 1929) Benthoctopus fuscus Taki, 1964 Benthoctopus hokkaidensis (Berry, 1921) Benthoctopus januarii (Hoyle, 1885) Benthoctopus leioderma (Berry, 1911) Benthoctopus levis (Hoyle, 1885) Benthoctopus lothei (Chun, 1913) Benthoctopus macrophallus Voss and Pearcy, 1990 Benthoctopus magellanicus Robson, 1930 Benthoctopus oregonae Toll, 1981 Benthoctopus oregonensis Voss and Pearcy, 1990 Benthoctopus piscatorum (Verrill, 1879) Benthoctopus profundorum Robson, 1932 Benthoctopus pseudonymus (Grimpe, 1922) Benthoctopus robustus Voss and Pearcy, 1990 Benthoctopus sibiricus Loyning, 1930 Benthoctopus thielei Robson, 1932 Benthoctopus yaquinae Voss and Pearcy, 1990 Benthomangelia antonia (Dall, 1881) Benthomangelia bandella (Dall, 1881) Benthomangelia decapitata Bouchet and Waren, 1980 Benthonella fischeri Dall, 1889 Benthonella gaza Dall, 1889 Benthonella nisonis Dall, 1889 Benthonella tenella (Jeffreys, 1869) Benthonellania acuticostata (Dall, 1889) Benthonellania colombiana (Romer and Moore, 1988) Benthonellania xanthias (Watson, 1886) Berghia amakusana (Baba, 1937) Berghia benteva (Er. Marcus, 1958) Berghia coerulescens (Laurillard, 1830) Beringiana beringiana (Middendorff, 1851) Beringiana fukuharai San, Hattori & Kondo in Lopes-Lima et al., 2020 Beringiana gosannensis San, Hattori & Kondo in Lopes-Lima et al., 2020 Beringiana japonica (Clessin, 1874) Beringius aleuticus Dall, 1895 Beringius behringi (Middendorff, 1848) Beringius brychius (Verrill and Smith, 1885) Beringius crebricostatus (Dall, 1877) Beringius eyerdami A. G. Smith, 1959 Beringius indentatus Dall, 1919 Beringius kennicottii (Dall, 1871) Beringius stimpsoni (Gould, 1860) Beringius turtoni (Bean, 1834) Beringius undatus Dall, 1919 Bermudaclis tampaensis Bartsch, 1947 Bernardina bakeri Dall, 1910 Berryteuthis anonychus (Pearcy and Voss, 1963) Berryteuthis magister (Berry, 1913) Berthelinia caribbea Edmunds, 1963 Berthella agassizii (MacFarland, 1909) Berthella californica (Dall, 1900) Berthella plumula (Montagu, 1803) Berthella sideralis (Loven, 1847) Berthella stellata (Risso, 1826) Berthella strongi (MacFarland, 1966) Berthella tupala Er. Marcus, 1957 Berthellina amarillus (Mattox, 1953) Berthellina americanus (Verrill, 1885) Berthellina engeli (Gardiner, 1936) Besla cossmanni Hornung and Mermod, 1924 Bineurus anodontinum (Rochebrune, 1882) Bineurus exilis (Morelet, 1866) Bineurus loeiensis Konopleva, Bolotov, Pfeiffer, Vikhrev, Kondakov, Gofarov, Tomilova, Tanmuangpak et al., 2021 Bineurus mouhotii (Lea, 1863) Bineurus panhai Jeratthitikul & Sutcharit, 2023 Binneya guadalupensis Pilsbry, 1927 Binneya notabilis J. G. Cooper, 1863 Biomphalaria glabrata (Say, 1818) Biomphalaria havanensis (Pfeiffer, 1839) Birgella subglobosus (Say, 1825) Biserramenia psammobionta Salvini-Plawen, 1967 Bithynia tentaculata (Linnaeus, 1758) Bittiolum alternatum (Say, 1822) Bittiolum fastigiatum (Carpenter, 1864) Bittiolum varium (Pfeiffer, 1840) Bittium alternatum (Say, 1822) Bittium arenaense Hertlein and Strong, 1951 Bittium armillatum (Carpenter, 1864) Bittium asperum Gabb, 1861 Bittium attenuatum Carpenter, 1864 Bittium bartolomensis Bartsch, 1917 Bittium catalinense Bartsch, 1907 Bittium cerralvoense Bartsch, 1911 Bittium challisae Bartsch, 1917 Bittium eschrichtii (Middendorf, 1849) Bittium fastigiatum Carpenter, 1864 Bittium fetellum Bartsch, 1911 Bittium inornatum Bartsch, 1911 Bittium interfossum (Carpenter, 1864) Bittium johnstonae Bartsch, 1911 Bittium larum Bartsch, 1911 Bittium mexicanum Bartsch, 1911 Bittium munitum (Carpenter, 1864) Bittium nicholsi Bartsch, 1911 Bittium oldroydae Bartsch, 1911 Bittium paganicum (Dall, 1919) Bittium perparvulum Bittium quadrifilatum Carpenter, 1864 Bittium reticulatum Da Costa, 1778 Bittium sanjuanense Bartsch, 1917 Bittium santamariensis Bartsch, 1917 Bittium serra Bartsch, 1917 Bittium subplanatum Bartsch, 1911 Bittium tumidum Bartsch, 1907 Bittium vancouverense Dall and Bartsch, 1910 Bittium varium (Pfeiffer, 1840) Blauneria heteroclita (Montagu, 1808) Bolitaena massyae (Robson, 1924) Bolitaena microcotyla Steenstrup in Hoyle, 1886 Boonea bisuturalis (Say, 1822) Boonea cincta (Carpenter, 1864) Boonea impressa (Say, 1822) Boonea seminuda (C. B. Adams, 1839) Boreacola dawsoni (Jeffreys, 1864) Boreacola vadosus Bernard, 1979 Boreocingula castanea (Moller, 1842) Boreocingula globulus (Moller, 1842) Boreocingula katherinae Boreocingula martyni (Dall, 1887) Boreoscala greenlandica (G. Perry, 1811) Boreotrophon abyssorum Verrill, 1885 Boreotrophon aculeatus Boreotrophon alaskanus Dall, 1902 Boreotrophon albospinosus (Willett, 1931) Boreotrophon avalonensis Dall, 1902 Boreotrophon bentleyi Dall, 1908 Boreotrophon cepulus (Sowerby, 1880) Boreotrophon clathratus (Linnaeus, 1767) Boreotrophon coronatus (H. Adams and A. Adams, 1864) Boreotrophon disparilis (Dall, 1891) Boreotrophon elegantulus (Dall, 1907) Boreotrophon eucymatus Dall, 1902 Boreotrophon kabati J. H. McLean, 1996 Boreotrophon keepi (Strong and Hertlein, 1937) Boreotrophon macouni (Dall, 1910) Boreotrophon multicostatus (Eschscholtz, 1829) Boreotrophon orpheus (Gould, 1849) Boreotrophon pedroanus (Arnold, 1903) Boreotrophon raymondi (Moody, 1916) Boreotrophon rotundatus (Dall, 1902) Boreotrophon staphylinus (Dall, 1919) Boreotrophon stuarti (E. A. Smith, 1880) Boreotrophon triangulatus (Carpenter, 1864) Boreotrophon tripherus Dall, 1902 Boreotrophon truncatus (Strom, 1768) Boreotrophon verrilli Bush, 1893 Bornella calcarata Bornia longipes (Stimpson, 1855) Bornia sebetia Costa, 1829 Borsonella bartschi (Arnold, 1903) Borsonella civitella Dall, 1919 Borsonella coronadoi (Dall, 1908) Borsonella diegensis (Dall, 1908) Borsonella hooveri (Arnold, 1903) Borsonella merriami (Arnold, 1903) Borsonella nicoli Dall, 1919 Borsonella nychia Dall, 1919 Borsonella omphale Dall, 1919 Borsonella pinosensis Bartsch, 1944 Bosellia corinneae Ev. Marcus, 1973 Bosellia marcusi Ev. Marcus, 1972 Bosellia mimetica Trinchese, 1891 Bostrychocentrum metcalfi F. G. Thompson, 1974 Bothriopupa variolosa (Gould, 1848) Botula fusca (Gmelin, 1791) Brachidontes adamsianus (Dunker, 1857) Brachidontes domingensis (Lamarck, 1819) Brachidontes exustus (Linnaeus, 1758) Brachidontes modiolus (Linnaeus, 1767) Brachidontes multiformes (Carpenter, 1855) Brachioteuthis beanii Verrill, 1881 in 1880-1881 Brachioteuthis behnii (Steenstrup, 1882) Brachioteuthis bowmani Russell, 1909 Brachioteuthis picta Chun, 1910 Brachioteuthis riisei (Steenstrup, 1882) Brachycythara barbarae Lyons, 1972 Brachycythara biconica (C. B. Adams, 1850) Bractechlamys antillarum (Recluz, 1853) Bradybaena similaris (Ferussac, 1821) Branchyostomia albella Branchyostomia scalaris Brazzaea anceyi Bourguignat, 1886 Brevinucula verrilli (Dall, 1886) Brookula bohni Schwabe and Engl, 2008 Brookula charleenae Schwabe and Engl, 2008 Brookula exquisita Clarke, 1961 Brookula iki Kay, 1979 Brookula pfefferi Powell, 1951 Buccinum abyssorum A. E. Verrill, 1884 Buccinum aleuticum Dall, 1895 Buccinum amaliae Verkruzen, 1878 Buccinum angulosum J. E. Gray, 1839 Buccinum aniwanum Buccinum baerii (Middendorff, 1848) Buccinum belcheri Reeve, 1855 Buccinum bulimuloideum Dall, 1907 Buccinum chartium Dall, 1919 Buccinum chishimananux Buccinum chishimanum Pilsbry, 1904 Buccinum ciliatum Fabricius, 1780 Buccinum cnismatum Dall, 1907 Buccinum cyaneum Bruguiere, 1792 Buccinum diplodetum Dall, 1907 Buccinum eugrammatum Dall, 1907 Buccinum fringillum Dall, 1877 Buccinum glaciale Linnaeus, 1761 Buccinum gouldii A. E. Verrill, 1882 Buccinum hertzensteini Verkruzen, 1882 Buccinum humphreysiana Bennett, 1825 Buccinum hydrophanum Hancock, 1846 Buccinum inexhaustum Verkruzen, 1878 Buccinum kadiakense Dall, 1907 Buccinum micropoma Thorson, 1944 Buccinum midori Buccinum moerchi Friele, 1877 Buccinum nivale Friele, 1882 Buccinum normale Dall, 1885 Buccinum ochotense (Middendorff, 1848) Buccinum oedematum Dall, 1907 Buccinum orotundum Dall, 1907 Buccinum pemphigus Dall, 1907 Buccinum percrassum Dall, 1883 Buccinum physematum Dall, 1919 Buccinum picturatum Dall, 1877 Buccinum planeticum Dall, 1919 Buccinum plectrum Stimpson, 1865 Buccinum polaris J. E. Gray, 1839 Buccinum rondinum Dall, 1919 Buccinum rossellinum Dall, 1919 Buccinum rossicum Buccinum sandersoni Verrill, 1882 Buccinum scalariforme Moller, 1842 Buccinum sericatum Hancock, 1846 Buccinum sigmatopleura Dall, 1907 Buccinum simulatum Dall, 1907 Buccinum solenum Dall, 1919 Buccinum striatissimum G. B. Sowerby III, 1899 Buccinum strigillatum Dall, 1891 Buccinum tanguaryi Baker, 1919 Buccinum taphrium Buccinum tenebrosum Hancock, 1846 Buccinum tenellum Dall, 1883 Buccinum totteni Stimpson, 1865 Buccinum tsubai Buccinum tumidulum G. O. Sars, 1878 Buccinum undatum Linnaeus, 1758 Buccinum viridum Dall, 1889 Bufonaria bufo (Bruguiere, 1792) Bulbus fragilis (Leach, 1819) Bulbus smithii (Brown, 1839) Buldowskia flavotincta (Martens, 1905) Buldowskia iwakawai (Suzuki, 1939) Buldowskia kamiyai San, Hattori & Kondo in Lopes-Lima et al., 2020 Buldowskia shadini (Moskvicheva, 1973) Buldowskia suifunica (Lindholm, 1925) Bulimnaea megasoma (Say, 1824) Bulimulus guadalupensis (Bruguiere, 1789) Bulla abyssicola Dall, 1881 Bulla ampulla (Linnaeus, 1758) Bulla bermudae Verrill and Bush, 1900 Bulla clausa Dall, 1889 Bulla eburnea Dall, 1881 Bulla gemma (A. E. Verrill, 1880) Bulla gouldiana Pilsbry, 1895 Bulla punctulata A. Adams In Sowerby, 1850 Bulla solida Gmelin, 1791 Bulla striata Bruguiere, 1792 Bullina exquisita McGinty, 1955 Bullina torrei Aguayo and Rehder, 1936 Bursa bufo (Bruguiere, 1792) Bursa bufonia (Gmelin, 1791) Bursa calcipicta Dall, 1908 Bursa californica (Hinds, 1843) Bursa corrugata Perry, 1811 Bursa finlayi Mcginty, 1962 Bursa granularis Roding, 1798 Bursa grayana Dunker, 1862 Bursa ranelloides (Reeve, 1844) Bursa rhodostoma (G. B. Sowerby I or II, 1835) Bursa tenuisculpta (Dautzenberg and Fischer, 1906) Bursa thomae (Orbigny, 1842) Bursatella kachii Bursatella leachii de Blainville, 1817 Bushia elegans (Dall, 1886) Busycon candelabrum (Lamarck, 1816) Busycon carica (Gmelin, 1791) Busycon coarctatum (Sowerby, 1825) Busycon contrarium (Conrad, 1840) Busycon laeostomum Kent, 1982 Busycon lyonsi Petuch, 1987 Busycon perversum (Linnaeus, 1758) Busycon pulleyi Hollister, 1958 Busycon sinistrum Hollister, 1958 Busycotypus canaliculatus (Linnaeus, 1758) Busycotypus plagosus (Conrad, 1862) Busycotypus spiratus (Lamarck, 1816) Cabestana spengleri Perry, 1811 Cadlina evelinae Cadlina flavomaculata MacFarland, 1905 Cadlina glabra Friele and Hansen, 1876 Cadlina laevis (Linnaeus, 1767) Cadlina limbaughi Lance, 1962 Cadlina limbaughorum Lance, 1962 Cadlina luteomarginata MacFarland, 1966 Cadlina marginata MacFarland, 1905 Cadlina modesta MacFarland, 1966 Cadlina pacifica Bergh, 1879 Cadlina rumia Er. Marcus, 1955 Cadlina scabriuscula (Bergh, 1890) Cadlina sparsa (Odhner, 1921) Cadulus aberrans Whiteaves, 1887 Cadulus acus Dall, 1889 Cadulus aequalis Dall, 1881 Cadulus agassizii Dall, 1881 Cadulus albicomatus Dall, 1890 Cadulus amiantus Dall, 1889 Cadulus ampullaceus Watson, 1879 Cadulus arctus Henderson, 1920 Cadulus artatus Locard, 1897 Cadulus atlanticus Henderson, 1920 Cadulus austinclarki Emerson, 1951 Cadulus californicus (Pilsbry and Sharp, 1898) Cadulus carolinensis Bush, 1885 Cadulus cucurbitus Dall, 1881 Cadulus cylindratus Jeffereys, 1877 Cadulus elongatus J. B. Henderson, 1920 Cadulus exiguus Watson, 1879 Cadulus foweyensis Henderson, 1920 Cadulus fusiformis Pilsbry and Sharp, 1898 Cadulus grandis A. E. Verrill, 1884 Cadulus greenlawi Dall, 1889 Cadulus hepburni (Dall, 1897) Cadulus iota Henderson, 1920 Cadulus mayori (J. B. Henderson, 1920) Cadulus miamiensis J. B. Henderson, 1920 Cadulus minusculus Dall, 1889 Cadulus obesus Watson, 1879 Cadulus pandionis (A. E. Verrill and S. Smith, 1880) Cadulus parvus J. B. Henderson, 1920 Cadulus perpusillus (Sowerby, 1832) Cadulus platensis Henderson, 1920 Cadulus proculum Dall, 1889 Cadulus providensis Henderson, 1920 Cadulus quadridentatus Dall, 1881 Cadulus quadrifissatus (Pilsbry and Sharp, 1898) Cadulus rastridens Watson, 1879 Cadulus regularis Henderson, 1920 Cadulus rushii Pilsbry and Sharp, 1898 Cadulus spectabilis A. E. Verrill, 1885 Cadulus stearnsii (Pilsbry and Sharp, 1898) Cadulus striatus Pilsbry and Sharp, 1898 Cadulus tetraschistus (Watson, 1879) Cadulus tetrodon Pilsbry and Sharp, 1898 Cadulus tolmiei (Dall, 1897) Cadulus transitorius (J. B. Henderson, 1920) Cadulus tumidosus Jeffreys, 1877 Cadulus verrilli Henderson, 1920 Cadulus watsoni Dall, 1881 Caecum antillarum Carpenter, 1858 Caecum arcuatum Caecum bakeri (Bartsch, 1920) Caecum bipartitum de Folin, 1870 Caecum breve de Folin, 1867 Caecum californicum Dall, 1885 Caecum carolinianum Dall, 1892 Caecum carpenteri (Bartsch, 1920) Caecum clava de Folin, 1867 Caecum condylum Moore, 1969 Caecum cooperi S. Smith, 1860 Caecum cornucopiae (Carpenter, 1858) Caecum crebricinctum Carpenter, 1864 Caecum cubitatum (de Folin, 1868) Caecum cycloferum de Folin, 1867 Caecum dalli Bartsch, 1920 Caecum floridanum Stimpson, 1851 Caecum glabrum Montagu, 1803 Caecum gurgulio Carpenter, 1858 Caecum heladum Olsson and Harbison, 1953 Caecum hemphilli Bartsch, 1920 Caecum heptagonum (Bartsch, 1920) Caecum imbricatum Carpenter, 1858 Caecum imperforatum Kanamacher, 1798 Caecum insularum Moore, 1969 Caecum johnsoni Winkley, 1908 Caecum liratocinctum Carpenter, 1857 Caecum nitidum Stimpson, 1851 Caecum oahuense Caecum occidentale (Bartsch, 1920) Caecum orcutti (Dall, 1885) Caecum plicatum Carpenter, 1858 Caecum profundicolum Bartsch, 1920 Caecum pulchellum Stimpson, 1851 Caecum regulare Carpenter, 1858 Caecum rosanum Bartsch, 1920 Caecum ryssotitum de Folin, 1867 Caecum sepimentum Caecum strigosum de Folin, 1868 Caecum subvolutum de Folin, 1874 Caecum textile de Folin, 1867 Caecum tornatum Verrill And Bush, 1900 Caecum tortile Dall, 1892 Caecum vestitum de Folin, 1868 Caelatura rustica (Watson, 1886) Cahuillus greggi (W. B. Miller, 1981) Cahuillus indioensis (Yates, 1890) Calinaticina oldroydii (Dall, 1897) Caliphylla mediterranea (A. Costa, 1867) Calliodentalium callipeplum (Dall, 1889) Calliostoma adelae Schwengel, 1951 Calliostoma adspersum (Philippi, 1851) Calliostoma anitoni Koch, 1843 Calliostoma annulatum (Lightfoot, 1786) Calliostoma arestum Dall, 1927 Calliostoma atlantis Clench and Aguayo, 1940 Calliostoma aurora Dall, 1888 Calliostoma bairdii A. E. Verrill and S. Smith, 1880 Calliostoma barbouri Clench and Aguayo, 1946 Calliostoma benedicti Dall, 1889 Calliostoma bernardi J. H. McLean, 1984 Calliostoma bigelowi Clench and Aguayo, 1938 Calliostoma blakei Clench and Aguayo, 1938 Calliostoma brunneum (Dall, 1881) Calliostoma bullisi Clench and Turner, 1960 Calliostoma canaliculatum (Lightfoot, 1786) Calliostoma carcellesi Clench and Aguayo, 1940 Calliostoma circumcinctum Dall, 1880 Calliostoma conulus (Linnaeus, 1758) Calliostoma coppingeri (E. A. Smith, 1880) Calliostoma costatum Martyn Calliostoma cubanum Clench and Aguayo, 1940 Calliostoma dentatum Quinn, 1992 Calliostoma echinatum Dall, 1881 Calliostoma euglyptum (A. Adams, 1855) Calliostoma eximium (Reeve, 1843) Calliostoma fascinans Schwengel and McGinty, 1942 Calliostoma formosum (Mcandrews and Forbes, 1847) Calliostoma gemmulatum Carpenter, 1864 Calliostoma gloriosum Dall, 1871 Calliostoma gordanum J. H. McLean, 1970 Calliostoma granulatum (Born, 1778) Calliostoma halibrectum Dall, 1927 Calliostoma hassler Clench and Aguayo, 1939 Calliostoma hendersoni Dall, 1927 Calliostoma indiana Dall, 1889 Calliostoma javanicum (Lamarck, 1822) Calliostoma jeanneae Clench and Turner, 1960 Calliostoma jucundum (Gould, 1894) Calliostoma jujubinum (Gmelin, 1791) Calliostoma kampsa Dall, 1927 Calliostoma keenae J. H. McLean, 1970 Calliostoma leanum (C. B. Adams, 1852) Calliostoma ligatum (Gould, 1849) Calliostoma marionae Dall, 1906 Calliostoma marshalli Lowe, 1935 Calliostoma mcleani Shasky and Campbell, 1964 Calliostoma militare Von Ihering, 1907 Calliostoma nepheloide Dall, 1913 Calliostoma occidentale (Mighels and C. B. Adams, 1842) Calliostoma orion Dall, 1889 Calliostoma palmeri Dall, 1871 Calliostoma papillosum Calliostoma platinum Dall, 1890 Calliostoma psyche Dall, 1889 Calliostoma pulchrum (C. B. Adams, 1850) Calliostoma rioensis Dall, 1890 Calliostoma roseolum Dall, 1881 Calliostoma sanjaimense J. H. McLean, 1970 Calliostoma sapidum Dall, 1881 Calliostoma sarcodum Dall, 1927 Calliostoma sayanum Dall, 1889 Calliostoma scalenum Quinn, 1992 Calliostoma schroederi Clench and Aguayo, 1938 Calliostoma splendens Carpenter, 1864 Calliostoma springeri Clench and Turner, 1960 Calliostoma supragranosum Carpenter, 1864 Calliostoma tampaense (Conrad, 1846) Calliostoma tittarium Dall, 1927 Calliostoma torrei Clench and Aguayo, 1940 Calliostoma trachystum Dall, 1927 Calliostoma tricolor Gabb, 1865 Calliostoma turbinum Dall, 1896 Calliostoma variegatum Carpenter, 1864 Calliostoma yucatecanum Dall, 1881 Calliostoma zizyphinum (Linnaeus, 1758) Calliostoma zonamestrum A. Adams, 1851 Calliotropis carlotta (Dall, 1889) Calliotropis ottoi (Philippi, 1844) Calliotropis regalis (A. E. Verrill and S. Smith, 1880) Calliotropis regulata Callista chione (Linnaeus, 1758) Callista eucymata (Dall, 1890) Callistochiton asthenes (S. S. Berry, 1919) Callistochiton crassicostatus Callistochiton decoratus Keep, 1887 Callistochiton palmulatus Dall, 1879 Callistochiton portobelensis Ferreira, 1976 Callistochiton shuttleworthianus Pilsbry, 1893 Callochiton laevis Callochiton septemvalvis (Montagu, 1803) Callonaia duprei (Récluz, 1842) Calloplax janeirensis (Gray, 1828) Callumbonella gorgonarum (Fischer, 1883) Callumbonella suturale (Philippi, 1836) Calma glaucoides Calotrophon andrewsi Vokes, 1976 Calotrophon incompta (S. S. Berry, 1960) Calotrophon ostrearum (Conrad, 1846) Calotrophon philippiana (Dall, 1889) Calycidoris guentheri Abraham, 1876 Calyptoconcha pellucida (A. E. Verrill, 1880) Calyptogena pacifica Dall, 1891 Calyptraea burchi A. G. Smith and M. Gordon, 1948 Calyptraea centralis (Conrad, 1841) Calyptraea chinensis Linnaeus, 1758 Calyptraea contorta Calyptraea fastigiata Gould, 1846 Cambarunio dactylus (Lea, 1840) Cambarunio hesperus Watters, 2018 Cambarunio iris (Lea, 1829) Cambarunio jonesii (Lea, 1859) Cambarunio nebulosus (Conrad, 1834) Cambarunio simus (Lea, 1838) Cambarunio taeniatus (Conrad, 1834) Campeloma brevispirum F. C. Baker, 1928 Campeloma crassulum Rafinesque, 1819 Campeloma decampi (W. G. Binney, 1865) Campeloma decisum (Say, 1817) Campeloma floridense Call, 1886 Campeloma geniculum (Conrad, 1834) Campeloma limum (Anthony, 1860) Campeloma milesi (Lea, 1863) Campeloma parthenum Vail, 1979 Campeloma regulare (Lea, 1841) Campeloma rufum (Haldeman, 1841) Cancellaria adelae Pilsbry, 1940 Cancellaria cooperii Gabb, 1865 Cancellaria crawfordiana Dall, 1891 Cancellaria reticulata (Linnaeus, 1767) Cancellaria richardpetiti Petuch, 1987 Candidula intersecta (Poiret, 1801) Cantharidus exasperatus Cantharidus striatus Cantharus cancellarius (Conrad, 1846) Cantharus massena (Risso, 1826) Cantharus multangulus (Philippi, 1848) Capulacmaea commoda (Middendorff, 1851) Capulus californicus Dall, 1900 Capulus incurvus (Gmelin, 1791) Capulus ungaricus (Linnaeus, 1767) Caracolus marginella (Gmelin, 1791) Cardiapoda placenta (Lesson, 1830) Cardiomya abyssicola (Verrill and Bush, 1898) Cardiomya balboae (Dall, 1916) Cardiomya behringensis (Leche, 1883) Cardiomya californica (Dall, 1886) Cardiomya costata (Sowerby, 1834) Cardiomya costellata (Deshayes, 1830) Cardiomya gemma A. E. Verrill and Bush, 1898 Cardiomya glypta (Bush, 1885) Cardiomya isolirata Bernard, 1969 Cardiomya multicostata Verrill and Smith, 1898 Cardiomya oldroydi (Dall, 1924) Cardiomya ornatissima (d'Orbigny, 1842) Cardiomya pectinata (Carpenter, 1864) Cardiomya perrostrata (Dall, 1881) Cardiomya planetica (Dall, 1908) Cardiomya pseutes Cardiomya striata (Jeffreys, 1876) Cardita borealis Cardita ventricosa Carditamera floridana Conrad, 1838 Carditamera gracilis (Shuttleworth, 1856) Carditella hawarensis Carditopsis bernardi (Dall, 1903) Carditopsis smithii (Dall, 1896) Cardium echinatum Cardium exiguum Cardium ovale Cardium pavcicostatum Cardium scabrum Careliopsis styliformis (Morch, 1875) Carenzia carinata (Jeffreys, 1877) Caribachlamys imbricata (Gmelin, 1791) Caribachlamys mildredae (Bayer, 1941) Caribachlamys ornata (Lamarck, 1819) Caribachlamys sentis (Reeve, 1853) Carinacauda stormi Leonard, Chichester, Richart and Young, 2011 Carinapex minutissima Carinapex papillosa Carinaria cithara Benson, 1835 Carinaria cristata (Linnaeus, 1767) Carinaria galea Benson, 1835 Carinaria japonica Carinaria lamarcki Peron and Lesueur, 1810 Carinoturris adrastia (Dall, 1919) Carinoturris fortis Bartsch, 1944 Carinoturris polycaste (Dall, 1919) Carychium clappi Hubricht, 1959 Carychium exiguum (Say, 1822) Carychium exile Lea, 1842 Carychium mexicanum Pilsbry, 1891 Carychium minimum Muller, 1774 Carychium nannodes G. H. Clapp, 1905 Carychium occidentale Pilsbry, 1891 Carychium riparium Hubricht, 1978 Carychium stygium Call, 1897 Carychium tridentatum (Risso, 1826) Caryocorbula porcella (Dall, 1916) Casmaria ponderosa (Gmelin, 1791) Cassis cornuta Linnaeus, 1758 Cassis flammea (Linnaeus, 1758) Cassis madagascariensis Lamarck, 1822 Cassis tuberosa (Linnaeus, 1758) Castalia ambigua Lamarck, 1819 Castalia cordata Swainson, 1840 Castalia crosseana Hidalgo, 1865 Castalia ecarinata Mousson, 1869 Castalia inflata d'Orbigny, 1835 Castalia martensi (Ihering, 1891) Castalia multisulcata Hupé, 1857 Castalia nehringi (Ihering, 1891) Castalia orbignyi (Deville & Hupé, 1850) Castalia orinocensis Morrison, 1943 Castalia psammoica (d'Orbigny, 1835) Castalia stevensi (H.B. Baker, 1930) Castalia undosa Martens, 1885 Castaliella quadrata (Sowerby, 1869) Castaliella schombergiana (Sowerby, 1869) Castaliella sulcata (Krauss, 1849) Catinella aprica Hubricht, 1968 Catinella avara (Say, 1824) Catinella gabbii (Tryon, 1866) Catinella hubrichti Grimm, 1960 Catinella oklahomarum (Webb, 1953) Catinella parallela Franzen, 1979 Catinella pinicola Grimm, 1960 Catinella protracta Franzen, 1983 Catinella pugilator Hubricht, 1961 Catinella rehderi (Pilsbry, 1948) Catinella stretchiana (Bland, 1865) Catinella texana Hubricht, 1961 Catinella vagans (Pilsbry, 1900) Catinella vermeta (Say, 1829) Catinella waccamawensis Franzen, 1981 Catinella wandae (Webb, 1953) Catriona aurantia (Alder and Hancock, 1842) Catriona columbiana (O'Donoghue, 1922) Catriona gymnota (Couthouy, 1838) Catriona maua Ev. Marcus and Er. Marcus, 1960 Catriona oba Ev. Marcus, 1970 Catriona rickettsi Behrens, 1984 Caudiculatus caudiculatus (Martens, 1867) Cavolinia gibbosa (d'Orbigny, 1836) Cavolinia globosa Nomen Nudum Cavolinia inflexa (Lesueur, 1813) Cavolinia longirostratus (de Blainville, 1821) Cavolinia longirostris (Blainville, 1821) Cavolinia occidentalis Cavolinia quadridentata Cavolinia tridentata (Niebuhr, 1775) Cavolinia uncinata (Rang, 1829) Cecilioides acicula (Muller, 1774) Cecilioides aperta (Swainson, 1840) Cecilioides apertus (Swainson, 1840) Cecina manchurica A. Adams, 1861 Cellana sandwicensis (Pease, 1861) Cellana talcosa (Gould, 1846) Cenchritis muricatus (Linnaeus, 1758) Cepaea hortensis (Muller, 1774) Cepaea nemoralis (Linnaeus, 1758) Cephalobranchia bonnevii Massy, 1917 Cephalobranchia macrochaeta Bonnevie, 1913 Cerastoderma edule (Linnaeus, 1758) Cerastoderma elegantulum Beck, 1842 Cerastoderma glaucum (Poiret, 1789) Cerastoderma lamarcki Cerastoderma pinnulatum (Conrad, 1831) Ceratophyllidia papilligera (Bergh, 1890) Ceratostoma foliatum (Gmelin, 1791) Ceratostoma nuttalli (Conrad, 1837) Ceratozona squalida (C. B. Adams, 1845) Cerberilla bernadetti Tardy, 1965 Cerberilla mosslandica McDonald and Nybakken, 1975 Cerberilla tanna Ev. Marcus and Er. Marcus, 1960 Cerion casablancae Bartsch, 1920 Cerion chrysalis (Ferussac in Beck, 1837) Cerion incanum (A. Binney, 1851) Cerion sculptum (Poey, 1858) Cerion tridentatum Pilsbry and Vanatta, 1895 Cerion viaregis Bartsch, 1920 Cerithidea californica (Haldeman, 1840) Cerithidea costata (E. M. da Costa, 1778) Cerithidea decollata Linnaeus, 1758 Cerithidea fuscata Gould, 1857 Cerithidea montagnei (Orbigny, 1837) Cerithidea pliculosa (Menke, 1829) Cerithidea scalariformis (Say, 1825) Cerithidea valida (C. B. Adams, 1852) Cerithidium diplax Cerithidium perparuulum Cerithiella metula (Loven, 1846) Cerithiella producta Dall, 1927 Cerithiella whiteavesi Verrill, 1880 Cerithiopsida diegensis (Bartsch, 1911) Cerithiopsida rowelli (Bartsch, 1911) Cerithiopsidella alcima (Bartsch, 1911) Cerithiopsidella antefilosa (Bartsch, 1911) Cerithiopsidella cosmia (Bartsch, 1907) Cerithiopsina signa (Bartsch, 1921) Cerithiopsis abruptum Watson, 1880 Cerithiopsis albovittata (C. B. Adams, 1850) Cerithiopsis alcima Bartsch, 1911 Cerithiopsis althea (Dall, 1927) Cerithiopsis antefilosum Bartsch, 1911 Cerithiopsis antemunda Bartsch, 1911 Cerithiopsis apicinum (Dall, 1927) Cerithiopsis ara Dall and Bartsch, 1911 Cerithiopsis argenteum (Dall, 1927) Cerithiopsis arnoldi Bartsch, 1911 Cerithiopsis aurea Bartsch, 1911 Cerithiopsis bakeri Bartsch, 1917 Cerithiopsis benthicum (Dall, 1927) Cerithiopsis berryi Bartsch, 1911 Cerithiopsis bicolor (C. B. Adams, 1850) Cerithiopsis bristolae Baker, Hanna, and Strong, 1938 Cerithiopsis carpenteri Bartsch, 1911 Cerithiopsis cesta Bartsch, 1911 Cerithiopsis charlottensis Bartsch, 1917 Cerithiopsis columna Carpenter, 1864 Cerithiopsis cosmia Bartsch, 1907 Cerithiopsis costulatum Moller, 1842 Cerithiopsis crystallinum Dall, 1881 Cerithiopsis cynthia Bartsch, 1911 Cerithiopsis decorum (Dall, 1927) Cerithiopsis diegensis Bartsch, 1911 Cerithiopsis diomedeae Bartsch, 1911 Cerithiopsis docata (Dall, 1927) Cerithiopsis elima (Dall, 1927) Cerithiopsis eliza (Dall, 1927) Cerithiopsis elsa (Dall, 1927) Cerithiopsis emersonii (C. B. Adams, 1839) Cerithiopsis exile Cerithiopsis flava (C. B. Adams, 1850) Cerithiopsis fraseri Bartsch, 1921 Cerithiopsis fusiformis (C. B. Adams, 1850) Cerithiopsis gemmulosa (C. B. Adams, 1847) Cerithiopsis georgianum (Dall, 1927) Cerithiopsis gloriosa Bartsch, 1911 Cerithiopsis greenii (C. B. Adams, 1839) Cerithiopsis grippi Bartsch, 1917 Cerithiopsis halia Bartsch, 1911 Cerithiopsis hero Bartsch, 1911 Cerithiopsis honora (Dall, 1927) Cerithiopsis ingens (Bartsch, 1907) Cerithiopsis io Dall and Bartsch, 1911 Cerithiopsis iontha Bartsch, 1911 Cerithiopsis iota (C. B. Adams, 1845) Cerithiopsis jeffreysi Watson, 1885 Cerithiopsis kinoi Baker, Hanna, and Strong, 1938 Cerithiopsis lata (C. B. Adams, 1850) Cerithiopsis latum (C. B. Adams, 1850) Cerithiopsis leipha (Dall, 1927) Cerithiopsis martensii Dall, 1881 Cerithiopsis merida (Dall, 1927) Cerithiopsis metaxae Della Chiaje, 1829 Cerithiopsis montereyensis Bartsch, 1911 Cerithiopsis movilla Dall and Bartsch, 1911 Cerithiopsis onealensis Bartsch, 1921 Cerithiopsis oxys Bartsch, 1911 Cerithiopsis paramoea Bartsch, 1911 Cerithiopsis pedroana Bartsch, 1907 Cerithiopsis pesa Dall and Bartsch, 1911 Cerithiopsis petala (Dall, 1927) Cerithiopsis porteri Baker, Hanna, and Strong. 1938 Cerithiopsis pulchellum Jeffreys, 1858 Cerithiopsis pupa Dall and Stimpson, 1901 Cerithiopsis rowelli Bartsch, 1911 Cerithiopsis rugulosum (C. B. Adams, 1850) Cerithiopsis serina (Dall, 1927) Cerithiopsis signa Bartsch, 1911 Cerithiopsis sigsbeanum Dall, 1881 Cerithiopsis stejnegeri Dall, 1884 Cerithiopsis stephensae Bartsch, 1909 Cerithiopsis subgloriosa Baker, Hanna, and Strong, 1938 Cerithiopsis subulata (Montagu, 1808) Cerithiopsis truncatum Dall, 1886 Cerithiopsis tubercularis Montagu, 1803 Cerithiopsis tuberculatus Montagu, 1803 Cerithiopsis tumida (Bartsch, 1907) Cerithiopsis vanhyningi Bartsch, 1918 Cerithiopsis vicola Dall and Bartsch, 1911 Cerithiopsis virginica J. B. Henderson and Bartsch, 1914 Cerithiopsis vitreum (Dall, 1927) Cerithium atratum (Born, 1778) Cerithium caribbaeum M. Smith, 1946 Cerithium chara Pilsbry, 1949 Cerithium eburneum Bruguiere, 1792 Cerithium gemmatum Hinds, 1844 Cerithium guinaicum Philippi, 1849 Cerithium interstriatum Cerithium lindae Petuch, 1987 Cerithium litteratum (Born, 1778) Cerithium lutosum Menke, 1828 Cerithium lymani Pilsbry, 1949 Cerithium maculosum Kiener, 1841 Cerithium menkei Carpenter, 1857 Cerithium moenensis Gabb, 1881 Cerithium muscarum Say, 1822 Cerithium mutabile Lamarck, 1804 Cerithium stercusmuscarum Valenciennes, 1833 Cerithium uncinatum Gmelin, 1791 Cerithium variabile Deshayes, 1833 Cerithium versicolor Philippi, 1848 Ceritoturris bittium Cernuella virgata (Muller, 1774) Cerodrillia abdera (Dall, 1919) Cerodrillia bahamensis Bartsch, 1943 Cerodrillia bealiana Schwengel and McGinty, 1942 Cerodrillia cervina Bartsch, 1943 Cerodrillia clappa Bartsch and Rehder, 1939 Cerodrillia clappi Bartsch and Rehder, 1939 Cerodrillia cybele (Pilsbry and Lowe, 1932) Cerodrillia girardi Lyons, 1972 Cerodrillia hendersoni Bartsch, 1943 Cerodrillia perryae Bartsch and Rehder, 1939 Cerodrillia thea (Dall, 1884) Cerodrillia verrillii (Dall, 1881) Cerodrillia williami Bartsch, 1943 Cetoconcha atypha Verrill and Bush, 1898 Cetoconcha bulla (Dall, 1881) Cetoconcha malespinae Ridewood, 1903 Cetoconcha margarita (Dall, 1886) Cetoconcha smithii Dall, 1908 Chaceia ovoidea (Gould, 1851) Chaenaxis tuba (Pilsbry and Ferriss, 1906) Chaetoderma argenteum Heath, 1911 Chaetoderma bacillum Chaetoderma canadense Nierstrasz, 1902 Chaetoderma elegans Scheltema, 1997 Chaetoderma hancocki (Schwabl, 1963) Chaetoderma lucidum Chaetoderma marinelli (Schwabl, 1963) Chaetoderma nanulum Heath, 1911 Chaetoderma nitidulum Loven, 1844 Chaetoderma pacificum (Schwabl, 1963) Chaetoderma productum Wiren, 1892 Chaetoderma robustum Heath, 1911 Chaetoderma scabrum Heath, 1911 Chaetoderma squamosum Heath, 1918 Chaetoderma vadorum Heath, 1918 Chaetopleura apiculata (Say, 1834) Chaetopleura beanii (Carpenter, 1857) Chaetopleura gemma Dall, 1879 Chaetopleura janeirensis (J. E. Gray, 1828) Chaetopleura lanuginosa (Dall, 1879) Chaetopleura scabricula (Sowerby, 1832) Chaetopleura staphylophera Lyons, 1985 Chama arcana Bernard, 1976 Chama congregata Conrad, 1833 Chama echinata Broderip, 1835 Chama florida Lamarck, 1819 Chama frondosa Broderip, 1835 Chama lactuca Dall, 1886 Chama macerophylla Gmelin, 1791 Chama pellucida Broderip, 1835 Chama sarda Reeve, 1847 Chama sinuosa Broderip, 1835 Chama sordida Broderip, 1835 Chama venosa Reeve, 1837 Chamaearionta aquaealbae (S. S. Berry, 1922) Chambardia bourguignati (Bourguignat, 1885) Chambardia flava (Pilsbry & Bequaert, 1927) Chambardia letourneuxi Bourguignat in Servain, 1890 Chambardia moutai (Dartevelle, 1939) Chambardia nyassaensis (Lea, 1864) Chambardia petersi (Martens, 1860) Chambardia rubens (Lamarck, 1819) Chambardia trapezia (Martens, 1897) Chambardia wahlbergi (Krauss, 1848) Chambardia welwitschii (Morelet, 1868) Chambardia wissmanni (Martens, 1883) Chamberlainia duclerci (Rochebrune, 1882) Chamberlainia hainesiana (Lea, 1856) Chamberlainia somsakpanhai Kongim, Sutcharit & Jeratthitkul, 2023 Chamelea gallina (Linnaeus, 1758) Charonia tritonis (Linnaeus, 1758) Charonia variegata (Lamarck, 1816) Chauvetea brunnea Chauvetia brunnea (Donovan, 1804) Cheilea corrugata (Broderip, 1834) Cheilea equestris (Linnaeus, 1758) Chelidonopsis hirundo (Martens, 1881) Chelidonura hirundinina (Quoy and Gaimard, 1833) Chelidonura sabina Er. Marcus and Ev. Marcus, 1970 Chicomurex laciniatus (G. B. Sowerby II, 1841) Chicomurex superbus (G. B. Sowerby III, 1889) Chicoreus beauii (P. Fischer and Bernardi, 1857) Chicoreus cailleti (Petit de la Saussaye, 1856) Chicoreus consuela (A. H. Verrill, 1950) Chicoreus dilectus (A. Adams, 1855) Chicoreus florifer Chicoreus formosus (Sowerby, 1841) Chicoreus mergus Vokes, 1974 Chicoreus oculatus (Reeve, 1845) Chicoreus pomum (Gmelin, 1791) Chione amathusia (Philippi, 1844) Chione californiensis (Broderip, 1835) Chione cancellata (Linnaeus, 1767) Chione cingenda Chione gnidea (Broderip and Sowerby, 1829) Chione kellettii (Hinds, 1845) Chione mariae (Orbigny, 1846) Chione paphia (Linnaeus, 1767) Chione picta Willett, 1944 Chione pulicaria (Broderip, 1835) Chione purpurissata Dall, 1902 Chione squamosa (Carpenter, 1857) Chione subimbricata (Sowerby, 1835) Chione subrugosa (Wood, 1828) Chione succincta Linnaeus, 1767 Chione undatella (G. B. Sowerby I, 1835) Chionista fluctifraga (G. B. Sowerby II, 1853) Chiroteuthis atlanticus (MacDonald and Clench, 1934) Chiroteuthis calyx Young, 1972 Chiroteuthis diaphana (Verrill, 1884) Chiroteuthis imperator Chun, 1908 Chiroteuthis joubini Voss, 1967 Chiroteuthis mega (Joubin, 1932) Chiroteuthis picteti Joubin, 1894 Chiroteuthis spoeli Salcedo-Vargas, 1996 Chiroteuthis veranyi (Férussac, 1834) Chiton albolineatus Chiton articulatus Sowerby, 1832 Chiton laevigatus Flemming, 1828 Chiton marmoratus Chiton squamosus Chiton stokesi Chiton tuberculatus Linnaeus, 1758 Chiton virgulatus Chiton viridis Spengler, 1797 Chlamydoconcha orcutti Dall, 1884 Chlamylla borealis Bergh, 1886 Chlamys albida (R. Arnold, 1906) Chlamys behringiana (Middendorff, 1849) Chlamys bruei (Payraudeau, 1826) Chlamys circularis (Sowerby, 1835) Chlamys distorta Chlamys hastata (G. B. Sowerby II, 1842) Chlamys islandica (Müller, 1776) Chlamys jordani Arnold, 1903 Chlamys kincaidi Oldroyd, 1929 Chlamys liocymatus (Dall, 1925) Chlamys lioicus (Dall, 1907) Chlamys lowei (Hertlein, 1935) Chlamys muscosus Wood, 1828 Chlamys navarcha Dall, 1898 Chlamys opercularis (Linnaeus, 1758) Chlamys pseudislandica MacNeil, 1967 Chlamys rubida (Hinds, 1845) Chlamys septemradiatus Chlamys strategus Chlamys subsulcata (Locard, 1898) Chlamys sulcata (O. F. Mueller, 1776) Chlamys tigerina Chlamys varia Chlamys wainwrightensis Chondropoma dentatum (Say, 1825) Choristes elegans Carpenter in Dawson, 1872 Choristodon robustum (G. B. Sowerby I, 1834) Chromodoris aila Er. Marcus, 1961 Chromodoris binza Ev. Marcus and Er. Marcus, 1963 Chromodoris clenchi (Russell, 1935) Chromodoris dalli (Bergh, 1879) Chromodoris kempfi Ev. Marcus, 1970 Chromodoris macfarlandi Cockerell, 1901 Chromodoris morchii Bergh, 1879 Chromodoris nyalya Ev. Marcus and Er. Marcus, 1967 Chromodoris punctilucens Bergh, 1890 Chromodoris roseopicta (A. E. Verrill, 1900) Chrysallida cancellata (d'Orbigny, 1842) Chrysallida decussata Chrysallida gemmulosa (C. B. Adams, 1850) Chrysallida obtusa Chrysallida spiralis Chrysallida toroensis (Olsson and McGinty, 1958) Chtenopteryx chuni Pfeffer, 1912 Chtenopteryx sepioloides (Rancurel, 1970) Chtenopteryx sicula (Verany, 1851) Chunioteuthis ebersbachii Grimpe, 1916 Chunioteuthis gilchristi (Robson, 1924) Cidarina cidaris (A. Adams, 1864) Cincinnatia integra (Say, 1821) Cingula alaskana Bartsch, 1912 Cingula aleutica Dall, 1886 Cingula asser (Bartsch, 1910) Cingula castanea (Moller, 1842) Cingula cerinella Cingula cingillis (Montagu, 1803) Cingula eyerdami Cingula fernandinae Dall, 1927 Cingula floridana Cingula forresterensis Cingula katherinae Bartsch, 1912 Cingula kyskensis Cingula martyni Dall, 1887 Cingula megalomastomus Olsson and McGinty, 1958 Cingula moerchi Collin, 1887 Cingula montereyensis Bartsch, 1912 Cingula palmeri Cingula pulcherrima Cingula robertsoni Cingula robusta Cingula scipio Dall, 1887 Cingula semistriata Montagu, 1803 Cingula stewardsoni (Vanatta, 1909) Cingulina babylonia (C. B. Adams, 1845) Cingulina evermanni Baker, Hanna, and Strong, 1928 Cingulina urdeneta (Bartsch, 1917) Cingulopsis fulgida Cionella lubrica (Muller, 1774) Cionella lubricella (Porro, 1838) Cionella morseana Doherty, 1878 Cionella nitens (Gallenstein, 1848) Cipangopaludina chinensis (Gray, 1834) Cipangopaludina japonica (von Martens, 1861) Circomphalus callimorphus (Dall, 1902) Circomphalus casina (Linnaeus, 1758) Circomphalus fordi (Yates, 1890) Circomphalus strigillinus (Dall, 1902) Circulus cosmius Bartsch, 1907 Circulus cubanus Pilsbry and Aguaya, 1933 Circulus dalli Bush, 1897 Circulus hendersoni (Olsson and McGinty, 1958) Circulus liratus (Verrill, 1882) Circulus margaritiformis Dall, 1927 Circulus multistriatus (A. E. Verrill, 1884) Circulus rossellinus Dall, 1919 Circulus semisculptus (Olsson and McGinty, 1958) Circulus suppressus (Dall, 1889) Circulus texanus (Moore, 1965) Circulus translucens Dall, 1927 Cirroteuthis hoylei Robson, 1932 Cirroteuthis magna Hoyle, 1885 Cirroteuthis massyae Grimpe, 1920 Cirroteuthis mulleri Eschricht, 1836 Cirrothauma murrayi Chun, 1911 Cirsotrema arcella Rehder, 1945 Cirsotrema dalli Rehder, 1945 Cirsotrema pilsbryi (McGinty, 1940) Cirsotrema togatum Hertlein and Strong, 1951 Cirsotrema varicosa Cirsotrema vulpinum (Hinds, 1844) Cistopus indicus (Rapp, 1835 in Férussac and D'Orbigny, 1834-1848) Cittarium pica (Linnaeus, 1758) Clappia cahabensis Clench, 1965 Clappia umbilicata (Walker, 1904) Clathromangelia fuscoligata (Dall, 1871) Clathromangelia interfossa (Carpenter, 1864) Clathrus clathrus Clathurella canfieldi (Dall, 1871) Clathurella capaniola (Dall, 1919) Clathurella castianira Dall, 1919 Clathurella conradiana Gabb, 1869 Clathurella crystallina Gabb, 1865 Clathurella eversoni Tippett, 1995 Clathurella rava (Hinds, 1843) Clathurella rigida (Hinds, 1843) Clausinella fasciata (Da Costa, 1778) Clavus cadensai (Clench and Aguayo, 1939) Clavus flammulatus Montfort, 1910 Clavus johnsoni (Bartsch, 1934) Cleba chrysosticta Cleba cordata Niebuhr, 1776 Clinocardium blandum (Gould, 1850) Clinocardium californiense (Deshayes, 1839) Clinocardium ciliatum (Fabricius, 1780) Clinocardium nuttallii (Conrad, 1837) Clinopegma magnum (Dall, 1895) Clio andreae (Boas, 1886) Clio balantium Rang, 1834 Clio chaptalii J. E. Gray, 1850 Clio cuspidata (Bosc, 1802) Clio polita (Pelseneer, 1888) Clio pyramidata Linnaeus, 1767 Clio recurva (Children, 1823) Clione antarctica (Smith, 1902) Clione limacina (Phipps, 1774) Cliopsis krohnii Troschel, 1854 Coccopigya spinigera (Jeffreys, 1883) Cocculina agassizi Dall, 1908 Cocculina beani Dall, 1882 Cocculina casanica Dall, 1919 Cocculina conica Verrill, 1884 Cocculina dalli Verrill, 1884 Cocculina georgiana Dall, 1927 Cocculina leptalea Verrill, 1884 Cocculina lissocona Dall, 1927 Cocculina portoricensis Dall and Simpson, 1901 Cocculina rathbuni Dall, 1882 Cocculina reticulata A. E. Verrill, 1885 Cocculina rotunda Dall, 1927 Cocculina spinigera Jeffreys, 1883 Cochlespira cedonulli (Reeve, 1843) Cochlespira elegans (Dall, 1881) Cochlespira radiata (Dall, 1889) Cochlicella barbara (Linnaeus, 1758) Cochlicopa lubrica (Muller, 1774) Cochlicopa lubricella (Porro, 1838) Cochlicopa morseana (Doherty, 1878) Cochlicopa nitens (Gallenstein, 1848) Cochliolepis holmesii (Dall, 1889) Cochliolepis parasitica Stimpson, 1858 Cochliolepis striata Dall, 1889 Cochliopina riograndensis (Pilsbry and Ferriss, 1906) Cochlodesma praetenue (Pulteney, 1799) Cochlodesma tenerum (Jeffreys, 1880) Cochlodinella poeyana (d'Orbigny, 1841) Codakia costata (d'Orbigny, 1842) Codakia cubana Dall, 1901 Codakia decussata (O. G. Costa, 1836) Codakia distinguenda (Tryon, 1872) Codakia orbicularis (Linnaeus, 1758) Codakia orbiculata (Montagu, 1808) Codakia pectinella (C. B. Adams, 1852) Coelatura aegyptiaca (Cailliaud, 1827) Coelatura alluaudi (Dautzenberg, 1908) Coelatura bakeri (H. Adams, 1866) Coelatura briarti (Dautzenberg, 1901) Coelatura choziensis (Preston, 1910) Coelatura cridlandi Mandahl-Barth, 1954 Coelatura disciformis (Rochebrune, 1886) Coelatura essoensis (Chaper, 1885) Coelatura gabonensis (Küster, 1862) Coelatura hauttecoeuri (Bourguignat, 1883) Coelatura horei (E. A. Smith, 1880) Coelatura hypsiprymna (Martens, 1897) Coelatura kipopoensis Mandahl-Barth, 1968 Coelatura kunenensis (Mousson, 1887) Coelatura leopoldvillensis (Putzeys, 1898) Coelatura lobensis (Frierson, 1913) Coelatura luapulaensis (Preston, 1913) Coelatura mesafricana Pilsbry & Bequaert, 1927 Coelatura mossambicensis (Martens, 1860) Coelatura ratidota (Charmes, 1885) Coelatura rothschildi (Neuville & Anthony, 1906) Coelatura stagnorum (Dautzenberg, 1890) Coelatura stanleyvillensis Pilsbry & Bequaert, 1927 Coelatura stuhlmanni (Martens, 1897) Coelostemma pyrgonasta F. G. Thompson, 1988 Coleophysis carinata (Carpenter, 1857) Coleophysis harpa Colga minichevi Martynov and Baranets, 2002 Colga pacifica (Bergh, 1894) Colga villosa (Odhner, 1907) Colligyrus convexus Hershler, Frest, Liu and Johannes, 2003 Colligyrus depressus Hershler, 1999 Colligyrus greggi (Pilsbry, 1935) Collisella alveus (Conrad, 1831) Collisella asmi (Middendorff, 1849) Collisella borealis Linberg, 1982 Collisella conus (Test, 1945) Collisella digitalis Rathke, 1833 Collisella edmitchelli (Lipps, 1963) Collisella insessa (Hinds, 1842) Collisella instabilis (Gould, 1846) Collisella jamaicensis (Gmelin, 1791) Collisella leucopleura (Gmelin, 1791) Collisella limatula Collisella ochracea (Dall, 1871) Collisella paradigitalis (Fritchman, 1960) Collisella pelta Rathke, 1833 Collisella scabra (Gould, 1846) Collisella strigatella (Carpenter, 1864) Collisella triangularis (Carpenter, 1864) Colpodaspis pusilla M. Sars, 1870 Colubraria biliratus (Reeve, 1846) Colubraria monroei Mcginty, 1962 Colubraria obscura (Reeve, 1844) Colubraria swifti (Tryon, 1881) Colubraria testacea (Morch, 1852) Columbarium atlantis Columbarium aurora Columbarium bartletti Columbarium bermudezi Columbarium brayi Columbarium electra Columbarium merope Columbella aureola Duclos, 1846 Columbella aureomexicana (Howard, 1963) Columbella mercatoria (Linnaeus, 1758) Columbella rusticoides Heilprin, 1886 Columbellopsis nycteis (Duclos, 1846) Columella columella (von Martens, 1830) Columella edentula (Draparnaud, 1805) Columella simplex (Gould, 1840) Colus acosmius (Dall, 1891) Colus adonis (Dall, 1919) Colus amrautius Colus aphelus (Dall, 1890) Colus aurantius (Dall, 1907) Colus barbarinus Dall, 1919 Colus bristolensis Dall, 1919 Colus brunneus (Dall, 1877) Colus caelathus (A. E. Verrill and S. Smith, 1880) Colus caelatus (A. E. Verrill and Smith, 1880) Colus calameus (Dall, 1907) Colus calathus Dall, 1919 Colus callorhinus (Dall, 1877) Colus capponius Dall, 1919 Colus dalmasius (Dall, 1919) Colus dautzenbergi (Dall, 1916) Colus errones Dall, 1919 Colus esychus (Dall, 1907) Colus georgianus (Dall, 1921) Colus glyptus (Verrill, 1882) Colus gracilis Colus griseus (Dall, 1890) Colus halibrectus (Dall, 1891) Colus halidonus Dall, 1919 Colus halimeris (Dall, 1919) Colus hallii (Dall, 1873) Colus herendeenii (Dall, 1902) Colus holbolli (Moller, 1842) Colus hunkinsi A. H. Clarke, 1962 Colus incisus (Dall, 1919) Colus islandicus (Mohr, 1786) Colus jeffreysianus Colus jordani (Dall, 1913) Colus kroyeri (Möller, 1842) Colus latericeus (Moller, 1842) Colus leptalens (Verrill, 1884) Colus martensi (Krause, 1885) Colus oceanodromae (Dall, 1919) Colus ombronius Dall, 1919 Colus parvus (Tiba, 1980) Colus periscelidus (Dall, 1891) Colus perminutus (Dall, 1927) Colus profundicola (Verrill and Smith, 1884) Colus pubescens (A. E. Verrill, 1882) Colus pulcius (Dall, 1919) Colus pygmaeus (Gould, 1841) Colus roseus (Dall, 1877) Colus rushii Dall, 1889 Colus sabinii (J. E. Gray, 1824) Colus sapius (Dall, 1919) Colus severinus (Dall, 1919) Colus stejnegeri (Dall, 1884) Colus stimpsoni (Mørch, 1867) Colus syrtensis (Packard, 1867) Colus tahwitanus (Dall, 1918) Colus terraenovae Bouchet and Waren, 1985 Colus timetus (Dall, 1919) Colus trombinus (Dall, 1919) Colus trophius (Dall, 1919) Colus turgidulus (Friele, 1877) Colus verkruezeni (Kobelt, 1876) Colus virens (Dall, 1877) Comarmondia gracilis (Montagu, 1903) Compressidens ophiodon (Dall, 1881) Compressidens pressus (Pilsbry and Sharp, 1897) Compressidens stearnsii Pilsbry and Sharp, 1897 Compsodrillia acestra (Dall, 1889) Compsodrillia albonodosa (Carpenter, 1857) Compsodrillia alcestis (Dall, 1919) Compsodrillia bicarinata (Shasky, 1961) Compsodrillia disticha Bartsch, 1934 Compsodrillia duplicata (Sowerby, 1834) Compsodrillia eucosmia (Dall, 1889) Compsodrillia excentrica (Sowerby, 1834) Compsodrillia haliostrephis (Dall, 1889) Compsodrillia haliplexa (Dall, 1919) Compsodrillia olssoni Mclean and Poorman, 1971 Compsodrillia opaca Mclean and Poorman, 1971 Compsodrillia thestia (Dall, 1919) Compsodrillia tristicha (Dall, 1889) Compsomyax subdiaphana (Carpenter, 1864) Conchocele bisecta (Conrad, 1849) Conchocele disjuncta Gabb, 1866 Congeria leucophaeta Conualevia alba Collier and Farmer, 1964 Conus abbotti Clench, 1942 Conus acutangulus Conus amphiurgus Dall, 1889 Conus anabathrum Crosse, 1865 Conus archon Broderip, 1833 Conus arcuatus Broderip and Sowerby, 1829 Conus armiger Crosse, 1858 Conus attenuatus Reeve, 1844 Conus aureonimbosus Petuch, 1987 Conus austini Rehder and Abbott, 1951 Conus bajanensis Usticke, 1968 Conus bartschi Hanna and Strong, 1949 Conus bermudensis Clench, 1942 Conus binghamae Petuch, 1987 Conus brunneus Wood, 1828 Conus californicus Hinds, 1844 Conus cancellatus Hwass, 1792 Conus cardinalis Hwass, 1792 Conus caribbaeus Clench, 1942 Conus chrysocestus S. S. Berry, 1968 Conus citrinus Gmelin, 1791 Conus clarki Rehder and Abbott, 1951 Conus dalli Stearns, 1873 Conus daucus Hwass, 1792 Conus delessertii Recluz, 1843 Conus diadema Sowerby, 1834 Conus dispar Sowerby, 1833 Conus ermineus Born, 1778 Conus fergusoni Sowerby, 1873 Conus flamingo Petuch, 1980 Conus flavescens G. B. Sowerby II, 1834 Conus floridanus Gabb, 1868 Conus floridensis G. B. Sowerby II, 1870 Conus gladiator Broderip, 1833 Conus glicksteini Petuch, 1987 Conus gradatus Wood, 1828 Conus granulatus Linnaeus, 1758 Conus harasewychi Petuch, 1987 Conus jaspideus Gmelin, 1791 Conus juliae Clench, 1942 Conus lucidus Wood, 1828 Conus macgintyi Pilsbry, 1955 Conus mazei Deshayes, 1874 Conus mcgintyi Pilsbry, 1955 Conus melvilli Sowerby, 1878 Conus mindanus Hwass, 1792 Conus mus Hwass, 1792 Conus patae Abbott, 1971 Conus patricius Hinds, 1843 Conus pealii Green, 1830 Conus perplexus Sowerby, 1857 Conus perryae Clench, 1942 Conus poormani S. S. Berry, 1968 Conus princeps Linnaeus, 1758 Conus purpurascens Sowerby, 1833 Conus rainesae McGinty, 1953 Conus ranuculus Conus recurvus Broderip, 1833 Conus regius Gmelin, 1791 Conus regularis Sowerby, 1833 Conus scalaris Valenciennes, 1832 Conus selenae Van Mol, Tursch, and Kempf, 1967 Conus sennottorum Rehder and Abbott, 1951 Conus sponsalis Conus spurius Gmelin, 1791 Conus stearnsii Conrad, 1869 Conus stimpsoni Dall, 1902 Conus tornatus Sowerby, 1933 Conus ustickei Miller In Usticke, 1959 Conus vexillum Gmelin, 1789 Conus villepinii P. Fischer and Bernardi, 1857 Conus virgatus Reeve, 1849 Conus vittatus Hwass In Bruguiere, 1792 Conus ximenes Gray, 1839 Conus ziczac Megerle von Muhlfeld, 1816 Cooperella atlantica Rehder, 1943 Cooperella subdiaphana (Carpenter, 1864) Copulabyssia corrugata (Jeffreys, 1883) Coralliophaga coralliophaga (Gmelin, 1791) Coralliophaga lithophagella (Lamarck, 1819) Coralliophila abbreviata (Lamarck, 1816) Coralliophila aberrans (C. B. Adams, 1850) Coralliophila aedonia (Watson, 1886) Coralliophila bracteata (Brocchi, 1814) Coralliophila caribaea Abbott, 1958 Coralliophila costata (de Blainville, 1832) Coralliophila fax F. M. Bayer, 1971 Coralliophila galea (Reeve, 1846) Coralliophila macleani Shasky, 1970 Coralliophila nux (Reeve, 1846) Coralliophila orcuttiana Dall, 1919 Coralliophila pacei Petuch, 1987 Coralliophila parva (E. A. Smith, 1877) Coralliophila richardi (P. Fischer, 1882) Coralliophila scalariformis (Lamarck, 1822) Corambe evelinae Marcus, 1959 Corambe obscura (A. E. Verrill, 1870) Corambe pacifica Macfarland and O'donoghue, 1929 Corambe testudinaria H. Fischer, 1889 Corbicula fluminalis (O. F. Müller, 1774) Corbicula fluminea (O. F. Müller, 1774) Corbicula manilensis Philippi Corbula alabamiensis Lea, 1833 Corbula barrattiana C. B. Adams, 1852 Corbula bicarinata (Sowerby, 1833) Corbula biradiata (Sowerby, 1833) Corbula caribaea Corbula chittyana C. B. Adams, 1852 Corbula contracta Say, 1822 Corbula cubaniana D'Orbigny, 1842 Corbula cymella Dall, 1881 Corbula dietziana C. B. Adams, 1852 Corbula kelseyi Dall, 1916 Corbula krebsiana C. B. Adams, 1852 Corbula luteola Carpenter, 1864 Corbula nasuta Sowerby, 1833 Corbula nuciformis Sowerby, 1833 Corbula porcella Dall, 1916 Corbula sulcata Corbula swiftiana C. B. Adams, 1852 Corolla calceola (A. E. Verrill, 1880) Corolla intermedia (Tesch, 1903) Corolla ovata (Quoy and Gaimard, 1832) Corolla spectabilis Dall, 1871 Coryphella borealis Odhner, 1922 Coryphella browni Picton, 1980 Coryphella californica Bergh, 1904 Coryphella cynara Coryphella lineata Coryphella pallida Coryphella parva Hadfeild, 1963 Coryphella pedata Coryphella rutila Coryphella stellata Coryphella stimpsoni Verrill, 1880 Cosa brasiliensis Klappenbach, 1966 Cosa caribaea (Carpenter, 1864) Cosmioconcha calliglypta (Dall and Simpson, 1901) Cosmioconcha modesta (Powys, 1935) Cosmioconcha nitens (C. B. Adams, 1850) Cosmioconcha palmeri (Dall, 1913) Cosmioconcha parvula (Dall, 1912) Cosmioconcha pergracilis (Dall, 1913) Cosmotriphora decorata (C. B. Adams, 1850) Cosmotriphora melanura (C. B. Adams, 1850) Cosmotriphora olivacea (Dall, 1889) Costasiella nonatoi Ev. Marcus and Er. Marcus, 1960 Costasiella ocellifera (Simroth, 1895) Costoanachis avara (Say, 1822) Costoanachis catenata (G. B. Sowerby II, 1844) Costoanachis floridana (Rehder, 1939) Costoanachis lafresnayi (P. Fischer and Bernardi, 1857) Costoanachis semiplicata (Stearns, 1873) Costoanachis similis (Ravenel, 1861) Costoanachis sparsa (Reeve, 1859) Couthouyella striatula (Couthouy, 1838) Cranchia scabra Leach, 1817 Cranopsis asturiana (P. Fischer, 1882) Cranopsis billsae (Perez Farfante, 1947) Cranopsis cucullata (Gould, 1846) Cranopsis decorata (I. M. Cowan and J. H. McLean, 1968) Cranopsis erecta (Dall, 1889) Cranopsis granulata (Seguenza, 1862) Cranopsis major (Dall, 1891) Cranopsis multistriata (Dall, 1914) Craspedochiton hemphilli Crassadoma gigantea (J. E. Gray, 1825) Crassatella ponderosa Gmelin, 1791 Crassicardia crassidens (Broderip and Sowerby, 1829) Crassinella dupliniana (Dall, 1903) Crassinella lunulata (Conrad, 1834) Crassinella martinicensis (d'Orbigny, 1842) Crassinella pacifica (C. B. Adams, 1852) Crassispira adonis Pilsbry and Lowe, 1932 Crassispira albinodata (Reeve, 1843) Crassispira albomaculata (Orbigny, 1842) Crassispira apitoa (Corea, 1934) Crassispira appressa (Carpenter, 1884) Crassispira bacchia Dall, 1919 Crassispira brujae Hertlein and Strong, 1951 Crassispira candace Dall, 1919 Crassispira chacei Hertlein and Strong, 1951 Crassispira cortezi Shasky and Campbell, 1964 Crassispira cubana (Melvill, 1923) Crassispira dichroa Pilsbry and Lowe, 1932 Crassispira discors (Sowerby, 1834) Crassispira drangai Schwengel, 1951 Crassispira ericana Hertlein and Strong, 1951 Crassispira fuscescens (Reeve, 1845) Crassispira granulosa (Sowerby, 1834) Crassispira greeleyi (Dall, 1901) Crassispira gundlachi (Dall and Simpson, 1901) Crassispira haliostrephis Crassispira halis Dall, 1919 Crassispira hexagona (Sowerby, 1834) Crassispira incrassata (Sowerby, 1834) Crassispira kluthi E. K. Jordan, 1936 Crassispira leucocyma Dall, 1883 Crassispira liella (Corea, 1934) Crassispira mamona (Corea, 1934) Crassispira maura (Sowerby, 1834) Crassispira melonesiana (Dall and Simpson, 1901) Crassispira monilifera Carpenter, 1864 Crassispira monilis (Bartsch and Rehder, 1939) Crassispira montereyensis Stearns, 1871 Crassispira nigerrima (Sowerby, 1834) Crassispira nigrescens (C. B. Adams, 1945) Crassispira nymphia Pilsbry and Lowe, 1932 Crassispira ornata Orbigny, 1842 Crassispira ostrearum Crassispira phasma Schwengel, 1940 Crassispira pluto Pilsbry and Lowe, 1932 Crassispira polytorta (Dall, 1881) Crassispira quadrifasciata (Reeve, 1845) Crassispira rhythmica Melvill, 1927 Crassispira rudis (Sowerby, 1834) Crassispira rugitecta (Dall, 1918) Crassispira rustica (Sowerby, 1834) Crassispira sanibelensis Bartsch and Rehder, 1939 Crassispira semiinflata (Grant and Gale, 1931) Crassispira stillmani Shasky, 1947 Crassispira suimaca (Corea, 1934) Crassispira tainoa (Corea, 1934) Crassispira tampaensis Bartsch and Rehder, 1939 Crassispira tepocana Dall, 1919 Crassispira trimariana Pilsbry and Lowe, 1932 Crassispira turricula (Sowerby, 1834) Crassispira unicolor (Sowerby, 1834) Crassispira xanti Hertlein and Strong, 1951 Crassispira zebra Crassostrea angulata Lamarck Crassostrea ariakensis (Fujita, 1913) Crassostrea chilensis Hertlein Crassostrea columbiensis (Hanley, 1846) Crassostrea corteziensis (Hertlein, 1951) Crassostrea gigas (Thunberg, 1793) Crassostrea rhizophorae Guilding Crassostrea virginica (Gmelin, 1791) Cratena kaoruae Marcus, 1957 Cratena pilata (Gould, 1870) Creedonia succinea (Pfeiffer, 1854) Crenella decussata (Montagu, 1808) Crenella divaricata (d'Orbigny, 1842) Crenella faba (Muller, 1776) Crenella fragilis A. E. Verrill, 1885 Crenella glandula (Totten, 1834) Crenella leana Dall, 1897 Crenella pectinula (Gould, 1841) Crenella pellucida (Jeffreys, 1859) Crenella rotundata Dall, 1916 Crenella skomma (Schwengel, 1944) Crenilabium aciculatum Cossmann, 1889 Crenilabium exilis (Jeffreys, 1870) Crepidula aculeata (Gmelin, 1791) Crepidula acuta Say, 1822 Crepidula adunca G. B. Sowerby I, 1825 Crepidula arenata (Broderip, 1834) Crepidula convexa Say, 1822 Crepidula excavata Broderip, 1834 Crepidula fornicata (Linnaeus, 1758) Crepidula glottidiarum Dall, 1905 Crepidula grandis Middendorff, 1849 Crepidula incurva (Broderip, 1834) Crepidula lessonii (Broderip, 1834) Crepidula maculosa Conrad, 1846 Crepidula naticarum Williamson, 1905 Crepidula norrisiarum Williamson, 1905 Crepidula nummaria Gould, 1846 Crepidula onyx G. B. Sowerby I, 1824 Crepidula perforans (Valenciennes, 1846) Crepidula plana Say, 1822 Crepidula striolata Menke, 1851 Crepidula uncata Menke, 1847 Crepipatella charybdis (S. S. Berry, 1940) Crepipatella dorsata (Broderip, 1834) Crepipatella lingulata (Gould, 1846) Crepipatella orbiculata (Dall, 1919) Crepitacella cepula Guppy, 1867 Crepitacella columbella (Dall, 1881) Crepitacella gabbi (Dall, 1889) Crepitacella leucophlegma (Dall, 1881) Crepitacella vestalis Rehder, 1943 Creseis acicula (Rang, 1828) Creseis chierchiae Creseis virgula (Rang, 1828) Crimora coneja Er. Marcus, 1961 Crimora papillata Alder and Hancock, 1862 Cristaria beirensis Liu & Zhang, 1982 Cristaria bellua (Morelet, 1866) Cristaria clessini (Kobelt, 1879) Cristaria plicata (Leach, 1814) Cristaria radiata Simpson, 1900 Cristaria truncata Dang, Thái & Pham, 1980 Crockerella castianira (Dall, 1919) Crockerella conradiana (Gabb, 1869) Crockerella crystallina (Gabb, 1865) Crockerella cymodoce (Dall, 1919) Crockerella eriphyle (Dall, 1919) Crockerella evadne (Dall, 1919) Crockerella lowei (Dall, 1903) Crockerella philodice (Dall, 1919) Crockerella scotti J. H. McLean, 1996 Crockerella tridesmia (S. S. Berry, 1941) Crossata californica (Hinds, 1843) Crucibulum auricula (Gmelin, 1791) Crucibulum concameratum Reeve, 1859 Crucibulum cyclopium S. S. Berry. 1969 Crucibulum lignarium (Broderip, 1834) Crucibulum monticulus S. S. Berry, 1969 Crucibulum personatum Keen, 1958 Crucibulum scutellatum (Wood, 1828) Crucibulum serratum (Broderip, 1834) Crucibulum spinosum (G. B. Sowerby I, 1824) Crucibulum striatum Say, 1824 Crucibulum subactum S. S. Berry, 1963 Crucibulum umbrella (Deshayes, 1830) Cryoturris cerinella (Dall, 1889) Cryoturris citronella (Dall, 1889) Cryoturris elata (Dall, 1899) Cryoturris engonia Woodring, 1928 Cryoturris fargoi McGinty, 1955 Cryoturris filifera (Dall, 1881) Cryoturris quadrilineata (C. B. Adams, 1850) Cryoturris trilineata (C. B. Adams, 1845) Cryptobranchia alba Dall, 1869 Cryptobranchia concentrica (Middendorff, 1851) Cryptochiton stelleri (Middendorff, 1847) Cryptoconchus floridanus (Dall, 1889) Cryptoconchus porosus Cryptomastix devia (Gould, 1846) Cryptomastix germana (Gould, 1851) Cryptomastix harfordiana (W. G. Binney, 1886) Cryptomastix hendersoni (Pilsbry, 1928) Cryptomastix magnidentata (Pilsbry, 1940) Cryptomastix mullani (Bland and J. G. Cooper, 1861) Cryptomastix sanburni (W. G. Binney, 1886) Cryptomya californica (Conrad, 1837) Cryptonatica affinis (Gmelin, 1791) Cryptonatica aleutica (Dall, 1919) Cryptonatica janthostoma (Deshayes, 1839) Cryptonatica russa (Gould, 1859) Cryptopecten phrygium (Dall, 1886) Ctena bella Ctena transversa Ctenodesma borneensis (Issel, 1874) Ctenodesma scheibeneri Haas, 1927 Cucullaea labiata (Solander) Cucumerunio novaehollandiae (Gray, 1834) Cultellus pellucidus Cumanotus beaumonti (Eliot, 1906) Cumanotus fernaldi T. E. Thompson and G. H. Brown, 1984 Cumberlandia monodonta (Say, 1829) Cumingia californica Conrad, 1837 Cumingia coarctata G. B. Sowerby I, 1833 Cumingia tellinoides (Conrad, 1831) Cuna dalli Vanatta, 1904 Cuneopsis celtiformis (Heude, 1874) Cuneopsis demangei Haas, 1929 Cuneopsis heudei (Heude, 1874) Cuneopsis kiangsiensis Tchang & Li, 1965 Cuneopsis rufescens (Heude, 1874) Curtitoma decussata (Couthuoy, 1839) Curtitoma fiora (Dall, 1919) Curtitoma incisula (A. E. Verrill, 1882) Curtitoma lawrenciana (Dall, 1919) Curtitoma novajasemljensis (Leche, 1878) Curtitoma trevelliana (Turton, 1834) Curtitoma violacea (Mighels and C. B. Adams, 1842) Cuspidaria abbreviata (Forbes, 1843) Cuspidaria alternata (d'Orbigny, 1842) Cuspidaria apodema Dall, 1916 Cuspidaria arctica (Sars, 1878) Cuspidaria arcuata Dall, 1881 Cuspidaria atlantica Cuspidaria chilensis Dall, 1890 Cuspidaria circinata Jeffreys, 1876 Cuspidaria costellata (Deshayes, 1833) Cuspidaria cuspidata (Olivi, 1792) Cuspidaria exigua (Jeffreys, 1876) Cuspidaria filatovae Cuspidaria formosa Verrill and Bush, 1893 Cuspidaria fraterna Verrill and Bush, 1893 Cuspidaria gigantea Verrill, 1884 Cuspidaria glacialis (G. O. Sars, 1878) Cuspidaria inflata (Jeffreys, 1876) Cuspidaria jeffreysi (Dall, 1881) Cuspidaria jugosa (S. V. Wood, 1856) Cuspidaria lamellosa Sars, 1878 Cuspidaria media A. E. Verrill and Bush, 1898 Cuspidaria microrhina Dall, 1886 Cuspidaria obesa (Loven, 1846) Cuspidaria parapodema Bernard, 1969 Cuspidaria parkeri Cuspidaria parva Cuspidaria pellucida Stimpson, 1853 Cuspidaria rostrata (Spengler, 1793) Cuspidaria subglacialis Dall, 1913 Cuspidaria subtorta (Sars, 1878) Cuspidaria subtorte (Sars, 1878) Cuspidaria sulcifera (Jeffreys, 1882) Cuspidaria turgida Verrill and Bush, 1898 Cuspidaria undata Verrill, 1884 Cuspidaria variola Cuspidaria ventricosa Verrill and Bush, 1898 Cuspidaria wollastoni E. A. Smith, 1885 Cuthona abronia (MacFarland, 1966) Cuthona abyssicola (Bergh, 1884) Cuthona albocrusta (MacFarland, 1966) Cuthona amoena (Alder and Hancock, 1845) Cuthona aurantia (Alder and Hancock, 1842) Cuthona caerulea (Montagu, 1804) Cuthona cocoachroma Williams and Gosliner, 1979 Cuthona concinna (Alder and Hancock, 1843) Cuthona divae (Er. Marcus, 1961) Cuthona flavovulta (MacFarland, 1966) Cuthona foliata (Forbes and Goodsir, 1839) Cuthona fulgens (MacFarland, 1966) Cuthona genovae (O'Donoghue, 1926) Cuthona hamanni Behrens, 1987 Cuthona lagunae (O'Donoghue, 1926) Cuthona nana (Alder and Hancock, 1842) Cuthona perca (Er. Marcus, 1958) Cuthona phoenix Gosliner, 1981 Cuthona punicea Millen, 1986 Cuthona pustulata (Alder and Hancock, 1854) Cuthona rolleri Behrens and Gosliner, 1988 Cuthona rubescens Picton and Brown, 1978 Cuthona stimpsoni A. E. Verrill, 1880 Cuthona tina (Er. Marcus, 1957) Cuthona veronicae (A. E. Verrill, 1880) Cuthona virens (MacFarland, 1966) Cuthona viridis (Forbes, 1840) Cuvierina columnella (Rang, 1827) Cyathodonta dubiosa Dall, 1915 Cyathodonta pedroana Dall, 1915 Cyathodonta undulata Conrad, 1849 Cyclinella tenuis (Recluz, 1852) Cyclocardia armilla (Dall, 1903) Cyclocardia bailyi (J. Q. Burch, 1944) Cyclocardia barbarensis (Stearns, 1891) Cyclocardia borealis (Conrad, 1831) Cyclocardia crassidens (Broderip and G. B. Sowerby I, 1829) Cyclocardia crebricostata (Krause, 1885) Cyclocardia gouldii (Dall, 1903) Cyclocardia incisa (Dall, 1903) Cyclocardia nodulosa (Dall, 1919) Cyclocardia novangliae (E. S. Morse, 1869) Cyclocardia ovata (Riabinina, 1952) Cyclocardia rjabininae (Scarlato, 1955) Cyclocardia spurca Sowerby, 1833 Cyclocardia stearnsii (Dall, 1903) Cyclocardia umnaka (Willett, 1932) Cyclocardia ventricosa (Gould, 1850) Cyclonaias tuberculata (Rafinesque, 1820) Cyclopecten alaskensis (Dall, 1871) Cyclopecten barbarensis Grau, 1959 Cyclopecten benthalis Cyclopecten carlottensis Cyclopecten catalinensis (Willett, 1931) Cyclopecten davidsoni (Dall, 1897) Cyclopecten exquisitus Grau, 1959 Cyclopecten greenlandicus (G. B. Sowerby II, 1842) Cyclopecten imbrifer (Loven, 1847) Cyclopecten incongruus Dall, 1916 Cyclopecten leptaleum (A. E. Verrill, 1884) Cyclopecten nanus A. E. Verrill and Bush, 1897 Cyclopecten neoceanicus Dall, 1908 Cyclopecten pernomus (Hertlein, 1935) Cyclopecten pustulosus Verrill, 1873 Cyclopecten reticulum (Dall, 1886) Cyclopecten ringnesius (Dall, 1924) Cyclopecten sigsbeei (Dall, 1886) Cyclopecten thalassinus (Dall, 1886) Cyclostrema amabile (Say, 1934) Cyclostrema cancellatum Marryat, 1818 Cyclostrema cookeanum (Dall, 1818) Cyclostrema huesonicum (Dall, 1927) Cyclostrema miranda Bartsch, 1910 Cyclostrema ponsonbyi Cyclostrema schrammii Fischer, 1857 Cyclostrema shrammi (Fischer, 1857) Cyclostrema tortuganum (Dall, 1927) Cyclostremella californica Bartsch, 1907 Cyclostremella concordia Bartsch, 1920 Cyclostremella conradia Bartsch, 1920 Cyclostremella humilis Bush, 1897 Cyclostremiscus baldridgei (Bartsch, 1911) Cyclostremiscus beauii (P. Fischer, 1857) Cyclostremiscus cosmius Cyclostremiscus cubanus (Pilsbry and Aguayo, 1933) Cyclostremiscus emeryi Cyclostremiscus gordanus (Hertlein and Strong, 1951) Cyclostremiscus humilis Cyclostremiscus jeannae Pilsbry and McGinty, 1946 Cyclostremiscus liratus Cyclostremiscus lowei Baker, Hanna, and Strong, 1938 Cyclostremiscus ornatus Olsson and McGinty, 1958 Cyclostremiscus pentagonus (Gabb, 1873) Cyclostremiscus schrammi (Fisher, 1857) Cyclostremiscus spiceri Baker, Hanna, and Strong, 1938 Cyclostremiscus spiritualis Baker, Hanna, and Strong, 1938 Cyclostremiscus suppressus (Dall, 1889) Cycloteuthis akimushkini Filippova, 1968 Cycloteuthis sirventi Joubin, 1919 Cyclothyca pacei Petuch, 1987 Cyerce antillensis Engel, 1927 Cyerce cristallina (Trinchese, 1881) Cylichna alba (T. Brown, 1827) Cylichna attanosa Cylichna attonsa Carpenter, 1865 Cylichna consobrina Cylichna crebripunctata (Jeffreys, 1881) Cylichna cylindracea (Pennant, 1777) Cylichna diegensis (Dall, 1919) Cylichna discus Watson, 1886 Cylichna eburnea A. E. Verrill, 1885 Cylichna fantasma (Baker and Hanna, 1927) Cylichna gouldii (Couthouy, 1839) Cylichna linearis Jeffreys, 1867 Cylichna nucleolus (Reeve, 1855) Cylichna obscura Sykes, 1903 Cylichna occulta (Mighels and C. B. Adams, 1842) Cylichna oryza Cylichna ovata Jeffreys, 1871 Cylichna verrilli Dall, 1889 Cylichna vortex (Dall, 1881) Cylichnella carinata Cylichnium africanum (Locard, 1897) Cylindrobulla beauii P. Fischer, 1857 Cymakra aspera (Carpenter, 1864) Cymakra gracilior (Tryon, 1884) Cymatioa electilis (S. S. Berry, 1963) Cymatium amictum Cymatium aquatile (Reeve, 1844) Cymatium cingulatum (Lamarck, 1882) Cymatium comptum (A. Adams, 1855) Cymatium corrugatum (Lamarck, 1816) Cymatium costatum Pennant, 1777 Cymatium cynocephalum (Lamarck, 1816) Cymatium femorale (Linnaeus, 1758) Cymatium gibbosum (Broderip, 1833) Cymatium gracile Reeve, 1844 Cymatium krebsi Morch, 1877 Cymatium labiosum (W. Wood, 1828) Cymatium lignarium (Broderip, 1833) Cymatium martinianum (d'Orbigny, 1846) Cymatium moritinctum (Reeve, 1844) Cymatium mundum (Gould, 1849) Cymatium muricinum (Roding, 1798) Cymatium nicobaricum (Roding, 1798) Cymatium occidentale (Morch, 1877) Cymatium parthenopeum (von Salis, 1793) Cymatium pfeifferianum (Reeve, 1844) Cymatium pharicidum Dall, 1889 Cymatium pileare (Linnaeus, 1758) Cymatium pyrum Linnaeus Cymatium rehderi A. H. Verrill, 1950 Cymatium ridleyi (E. A. Smith, 1890) Cymatium rubeculum (Linnaeus, 1758) Cymatium sarcostomum (Reeve, 1844) Cymatium tenuiliratum (Lischke, 1873) Cymatium testudinarium (Adams and Reeve, 1848) Cymatium tigrinum (Broderip, 1833) Cymatium vespaceum (Lamarck, 1822) Cymatium wiegmanni Cymatoica orientalis (Dall, 1890) Cymatoica undulata Hanley, 1844 Cymatosyrinx allynainus Hertlein and Strong, 1951 Cymatosyrinx arenensis Hertlein and Strong, 1951 Cymatosyrinx bartschi Haas, 1941 Cymatosyrinx centimata (Dall, 1889) Cymatosyrinx empyrosia (Dall, 1899) Cymatosyrinx fritellaria Dall, 1927 Cymatosyrinx halocydne (Dall, 1919) Cymatosyrinx hemphilli (Stearns, 1871) Cymatosyrinx johnsoni Arnold, 1903 Cymatosyrinx pagodula (Dall, 1889) Cymatosyrinx ricaudae (S. S. Berry, 1969) Cymatosyrinx splendida (Bartsch, 1934) Cymbovula acicularis (Lamarck, 1810) Cymbulia parvidentata Cymbulia peronii de Blainville, 1818 Cymbulia sibogae Tesch, 1904 Cyphoma alleneae Cate, 1973 Cyphoma aureocinctum (Dall, 1889) Cyphoma emarginatum (Sowerby, 1830) Cyphoma gibbosum (Linnaeus, 1758) Cyphoma intermedium (Sowerby, 1828) Cyphoma lindae Petuch, 1987 Cyphoma mcgintyi Pilsbry, 1939 Cyphoma rhomba Cate, 1978 Cyphoma sedlaki Cate, 1976 Cyphoma signatum Pilsbry and McGinty, 1939 Cypraea albuginosa Gray, 1825 Cypraea annettae Dall, 1909 Cypraea arabicula Lamarck, 1811 Cypraea cervinetta Kiener, 1843 Cypraea cervus Linnaeus, 1771 Cypraea cinerea Gmelin, 1791 Cypraea isabellamexicana Stearns, 1893 Cypraea mus Linnaeus, 1758 Cypraea nigropunctata Gray, 1828 Cypraea robertsi Hidalgo, 1906 Cypraea spadicea Swainson, 1836 Cypraea spurca Linnaeus, 1758 Cypraea surinamensis G. Perry, 1811 Cypraea zebra Linnaeus, 1758 Cypraecassis testiculus (Linnaeus, 1758) Cyprogenia aberti (Conrad, 1850) Cyprogenia stegaria (Rafinesque, 1820) Cyrenoida floridana (Dall, 1896) Cyrtodaria kurriana Dunker, 1861 Cyrtodaria siliqua (Spengler, 1793) Cyrtonaias explicata (Morelet, 1849) Cyrtonaias sapperi (Ihering, 1901) Cyrtonaias tampicoensis (Lea, 1838) Cyrtonaias umbrosa (Lea, 1856) Cyrtopleura costata (Linnaeus, 1758) Cystiscus politus (Carpenter, 1857) Cythnia albida Carpenter, 1864 Cythnia asteriaphila Dacrydium elegantulum Soot-Ryen, 1955 Dacrydium ockelmanni Mattson and Waren, 1977 Dacrydium pacificum Dall, 1916 Dacrydium vitreum (Moller, 1842) Daedalochila auriculata (Say, 1818) Daedalochila auriformis (Bland, 1859) Daedalochila avara (Say, 1818) Daedalochila chisosensis (Pilsbry, 1936) Daedalochila delecta (Hubricht, 1976) Daedalochila hausmani (Jackson, 1948) Daedalochila hippocrepis (Pfeiffer, 1848) Daedalochila leporina (Gould, 1848) Daedalochila peninsulae (Pilsbry, 1940) Daedalochila polita (Pilsbry and Hinkley, 1907) Daedalochila postelliana (Bland, 1859) Daedalochila scintilla (Pilsbry and Hubricht, 1962) Daedalochila subclausa (Pilsbry, 1899) Daedalochila triodontoides (Bland, 1861) Daedalochila uvulifera (Shuttleworth, 1852) Dalium solidum Dall, 1889 Danilia octaviana (Cantraine, 1835) Daphnella bartschi Dall, 1919 Daphnella clathrata Gabb, 1865 Daphnella corbicula Dall, 1889 Daphnella elata Dall, 1889 Daphnella eugrammata Dall, 1902 Daphnella fuscoligata (Dall, 1871) Daphnella grundifera (Dall, 1927) Daphnella leucophlegma (Dall, 1881) Daphnella lymneiformis (Kiener, 1840) Daphnella margaretae Lyons, 1972 Daphnella mazatlanica Pilsbry and Lowe, 1932 Daphnella morra (Dall, 1881) Daphnella peripla (Dall, 1881) Daphnella pompholyx Dall, 1889 Daphnella reticulosa Dall, 1889 Daphnella retifera Dall, 1889 Daphnella stegeri McGinty, 1955 Dasyscias franzi F. G. Thompson and Hershler, 1991 Decatopecten noduliferum (G. B. Sowerby II, 1842) Decipifus sixaolus Olsson and McGinty, 1958 Decipula tenella (Loven, 1846) Decoriatrivia ritteri (Raymond, 1903) Delectopecten arces (Dall, 1913) Delectopecten binominatus (Hanna, 1924) Delectopecten bistriatus (Dall, 1916) Delectopecten greenlandicus (Sowerby, 1842) Delectopecten incongruus (Dall, 1916) Delectopecten tillamookensis (Arnold, 1906) Delectopecten vancouverensis (Whiteaves, 1893) Delectopecten vitreus (Gmelin, 1791) Delectopecten zacae Delonovolva aequalis Sowerby, 1832 Delphinonaias largillierti (Philippi, 1847) Delphinonaias planivalvis (Morelet, 1851) Delphinonaias scutulata (Morelet, 1849) Dendostrea frons (Linnaeus, 1758) Dendrodoris fulva (MacFarland, 1905) Dendrodoris krebsii (Morch, 1863) Dendrodoris nigromaculata (Cockerell, 1905) Dendrodoris warta Ev. Marcus and Er. Marcus, 1976 Dendronotus albopunctatus Robilliard, 1972 Dendronotus albus MacFarland, 1966 Dendronotus dalli Bergh, 1879 Dendronotus diversicolor Robilliard, 1970 Dendronotus frondosus (Ascanius, 1774) Dendronotus iris J. G. Cooper, 1863 Dendronotus robustus A. E. Verrill, 1870 Dendronotus rufus O'Donoghue, 1921 Dendronotus subramosus MacFarland, 1966 Dendropoma corrodens (d'Orbigny, 1842) Dendropoma exsertum (Dall, 1881) Dendropoma irregulare (d'Orbigny, 1842) Dendropoma lituella (Morch, 1861) Dendropoma rastrum (Morch, 1861) Dentalium agassizi Pilsbry and Sharp, 1897 Dentalium americanum Chenu, 1843 Dentalium antillarum D'Orbigny, 1842 Dentalium bartletti Henderson, 1920 Dentalium calamus Dall, 1889 Dentalium callipeplum Dall, 1889 Dentalium callithrix Dall, 1889 Dentalium carduum Dall, 1889 Dentalium ceratum (Dall, 1881) Dentalium circumcinctum Watson, 1879 Dentalium dalli Pilsbry and Sharp, 1897 Dentalium ensiculus Jeffereys, 1877 Dentalium floridense J. B. Henderson, 1920 Dentalium gouldii Dall, 1889 Dentalium inversum Deshayes, 1825 Dentalium laqueatum A. E. Verrill, 1885 Dentalium neohexagonum Sharp and Pilsbry, 1897 Dentalium occidentale Stimpson, 1851 Dentalium ophiodon Dall, 1881 Dentalium perlongum Dall, 1881 Dentalium pilsbryi Rehder, 1942 Dentalium pretiosum Sowerby, 1860 Dentalium rebeccaense Henderson, 1920 Dentalium rectius Carpenter, 1864 Dentalium stenochizum Pilsbry and Sharp, 1897 Dentalium taphrium Dall, 1889 Dentalium texasianum Philippi, 1848 Dentalium tubulatum Henderson, 1920 Dentalium vallicolens Raymond, 1904 Dentimargo aureocinctus (Stearns, 1872) Dentimargo eburneolus (Conrad, 1834) Dentimargo idiochila (Schwengel, 1943) Dentimargo reductus (Bavay, 1922) Dentimargo smithii (A. E. Verrill, 1885) Dentistyla asperrima (Dall, 1881) Depressiscala nautlae (Morch, 1874) Depressiscala nitidella (Dall, 1889) Depressiscala polita (G. B. Sowerby II, 1844) Dermatomya buttoni Dall, 1916 Dermatomya mactroides (Dall, 1889) Dermomurex abyssicola (Crosse, 1865) Dermomurex elizabethae (McGinty, 1940) Dermomurex glicksteini Petuch, 1987 Dermomurex pacei Petuch, 1988 Dermomurex pauperculus (C. B. Adams, 1850) Deroceras caruanae (Pollonera, 1891) Deroceras hesperium Pilsbry, 1944 Deroceras heterura Pilsbry, 1944 Deroceras laeve (Muller, 1774) Deroceras monentolophus Pilsbry, 1944 Deroceras panormitanum (Lessona and Pollonera, 1882) Deroceras reticulatum (Muller, 1774) Desmopterus pacificus Essenberg, 1919 Desmopterus papilio Chun, 1889 Detracia bulloides (Montagu, 1808) Detracia clarki Morrison, 1951 Detracia floridana (Pfeiffer, 1856) Diacavolinia deblainvillei van der Spoel, Bleeker and Kobayashi, 1993 Diacavolinia deshayesi van der Spoel, Bleeker and Kobayashi, 1993 Diacavolinia elegans van der Spoel, Bleeker and Kobayashi, 1993 Diacavolinia ovalis van der Spoel, Bleeker and Kobayashi, 1993 Diacria danae van Leyen and van der Spoel, 1982 Diacria maculata Bleeker and van der Spoel, 1988 Diacria major (Boas, 1886) Diacria quadridentata (de Blainville, 1821) Diacria rampali Dupont, 1979 Diacria trispinosa (de Blainville, 1821) Diala scopulorum Diala varia Diaphana brunnea Dall, 1919 Diaphana californica Dall, 1919 Diaphana globosa (Lovén, 1846) Diaphana hiemalis (Couthouy, 1839) Diaphana lactea (Jeffreys, 1877) Diaphana lottae Bush, 1893 Diaphana marshalli (Sykes, 1905) Diaphana minuta Brown, 1827 Diaphorodoris lirulatocauda Millen, 1985 Diaphorodoris luteocincta (M. Sars, 1870) Diastoma varium (Pfeiffer, 1840) Diaulula sandiegensis (J. G. Cooper, 1863) Diaurora aurorea (Heude, 1883) Diaurora laeve Chen, Dai, Huang & Wu in Chen et al., 2023 Dicata odhneri Schmekel, 1967 Didianema pauli Pilsbry and McGinty, 1945 Digitaria digitaria (Linnaeus, 1758) Dillwynella modesta Dall, 1889 Dimya argentea Dall, 1886 Dimya californiana S. S. Berry, 1936 Dimya coralliotis S. S. Berry, 1944 Dimyella starcki Moore, 1969 Dinocardium robustum (Lightfoot, 1786) Diodora aguayoi Perez Farfante, 1943 Diodora alta (C. B. Adams, 1852) Diodora apertura Diodora arcuata (G. B. Sowerby II, 1862) Diodora arnoldi J. H. McLean, 1966 Diodora aspera (Rathke, 1833) Diodora beebei (Hertlein and Strong, 1951) Diodora bermudensis (Dall and Bartsch, 1911) Diodora cayenensis (Lamarck, 1822) Diodora crenifera (Sowerby. 1835) Diodora dysoni (Reeve, 1850) Diodora fluviana (Dall, 1889) Diodora fragilis Farfante and Henriquez, 1947 Diodora fusilla S. S. Berry, 1959 Diodora graeca (Linnaeus, 1758) Diodora granifera Diodora habanensis Christiaens, 1975 Diodora harrassowitzi Von Ihering, 1927 Diodora inaequalis (Sowerby, 1835) Diodora jaumei Aguayo and Rehder, 1936 Diodora listeri (d'Orbigny, 1842) Diodora meta (von Ihering, 1927) Diodora minuta (Lamarck, 1822) Diodora murina Arnold, 1903 Diodora panamensis (Sowerby, 1835) Diodora patagonica Orbigny, 1847 Diodora saturnalis (Carpenter, 1864) Diodora sayi (Dall, 1889) Diodora tanneri (A. E. Verrill, 1882) Diodora variegata G. B. Sowerby II, 1862 Diodora viridula (Lamarck, 1822) Diodora wetmorei Perez Farfante, 1945 Diplodon aethiops (Lea, 1860) Diplodon berthae Ortmann, 1921 Diplodon besckeanus (Dunker, 1848) Diplodon burroughiana (Lea, 1834) Diplodon caipira (Ihering, 1893) Diplodon charruana (d'Orbigny, 1835) Diplodon chilensis (Gray, 1828) Diplodon delodontus (Lamarck, 1819) Diplodon dunkerianus (Lea, 1856) Diplodon ellipticus (Spix & Wagner, 1827) Diplodon expansus (Küster, 1856) Diplodon flucki Morrison, 1943 Diplodon fluctiger (Lea, 1859) Diplodon fontainianus (d'Orbigny, 1835) Diplodon funebralis (Lea, 1860) Diplodon granosus (Bruguière, 1792) Diplodon grata (Lea, 1860) Diplodon greeffeanus (Ihering, 1893) Diplodon guaporensis Bonetto & Tassara, 1987 Diplodon guaranianus (d'Orbigny, 1835) Diplodon hildae Ortmann, 1921 Diplodon hylaea (d'Orbigny, 1835) Diplodon iheringi Simpson, 1914 Diplodon imitator Ortmann, 1921 Diplodon koseritzi (Clessin, 1888) Diplodon losadae Haas, 1966 Diplodon martensi (Ihering, 1893) Diplodon multistriatus (Lea, 1831) Diplodon obsolescens F. Baker, 1913 Diplodon parallelopipedon (Lea, 1834) Diplodon paranensis (Lea, 1834) Diplodon parodizi Bonetto, 1962 Diplodon paulista (Ihering, 1893) Diplodon peraeformis (Lea, 1860) Diplodon pfeifferi (Dunker, 1848) Diplodon piceus (Lea, 1860) Diplodon rhombea (Spix & Wagner, 1827) Diplodon rhuacoicus (d'Orbigny, 1835) Diplodon rotundus (Spix & Wagner, 1827) Diplodon solidulus (Philippi, 1869) Diplodon solisianus (d'Orbigny, 1835) Diplodon suavidica (Lea, 1856) Diplodon uruguayensis (Lea, 1860) Diplodon variabilis (Maton, 1811) Diplodon vicarius Ortmann, 1921 Diplodon voltzi Vernhout, 1914 Diplodon wymanii (Lea, 1860) Diplodonta aleutica Dall, 1901 Diplodonta candeana (d'Orbigny, 1842) Diplodonta cornea (Reeve, 1850) Diplodonta discrepans (Carpenter, 1857) Diplodonta impolita S. S. Berry, 1953 Diplodonta inezensis (Hertlein and Strong, 1947) Diplodonta lupina Brocchi, 1814 Diplodonta notata Dall and Simpson, 1901 Diplodonta nucleiformis Wagner, 1838 Diplodonta obliqua Philippi, 1846 Diplodonta orbella (Gould, 1851) Diplodonta punctata (Say, 1822) Diplodonta rotundata Diplodonta semiaspera Philippi, 1836 Diplodonta sericata (Reeve, 1850) Diplodonta soror C. B. Adams, 1852 Diplodonta subglobosa C. B. Adams, 1852 Diplodonta torrelli Jeffreys, 1976 Diplodonta venezuelensis Dunker, 1848 Diplodonta verrilli Dall, 1900 Diplodontites cookei Marshall, 1922 Diplodontites olssoni Pilsbry, 1933 Diplodontites pilsbryana Olsson & Wurtz, 1951 Diplosolenodes occidentale (Guilding, 1825) Diplothyra smithii Tryon, 1862 Dirona albolineata MacFarland, 1905 Dirona aurantia Hurst, 1966 Dirona picta MacFarland, 1905 Discodoris alba White, 1952 Discodoris aurila Marcus and Marcus, 1967 Discodoris evelinae Er. Marcus, 1955 Discodoris heathi MacFarland, 1905 Discodoris hedgpethi Marcus and Marcus, 1959 Discodoris mavis Marcus and Marcus, 1967 Discodoris millegrana (Adler and Hancock, 1854) Discodoris mortenseni Ev. Marcus and Er. Marcus, 1963 Discodoris notha Bergh, 1877 Discodoris phoca Ev. Marcus and Er. Marcus, 1967 Discodoris purcina Ev. Marcus and Er. Marcus, 1967 Discodoris pusae Er. Marcus, 1955 Discodoris voniheringi MacFarland, 1909 Discomya radulosa (Drouët & Chaper, 1892) Disconaias conchos Taylor, 1997 Disconaias disca (Lea, 1838) Disconaias fimbriata (Frierson, 1907) Disconaias novileonis (Pilsbry, 1910) Disconaias panacoensis (von dem Busch in Philippi, 1843) Disconaias purpuriata (Say, 1831) Discotectonica discus (Philippi, 1844) Discoteuthis discus Young and Roper, 1969 Discoteuthis laciniosa Young and Roper, 1969 Discurria insessa (Hinds, 1842) Discus brunsoni S. S. Berry, 1955 Discus bryanti (Harper, 1881) Discus catskillensis (Pilsbry, 1896) Discus clappi (Pilsbry, 1924) Discus macclintocki (F. C. Baker, 1928) Discus marmorensis H. B. Baker, 1932 Discus nigrimontanus (Pilsbry, 1924) Discus patulus (Deshayes, 1830) Discus rotundatus (Muller, 1774) Discus selenitoides (Pilsbry, 1890) Discus shimekii (Pilsbry, 1890) Discus whitneyi (Newcomb, 1864) Distorsio clathrata (Lamarck, 1816) Distorsio constricta Broderip, 1833 Distorsio decussata (Valenciennes, 1832) Distorsio floridana Gardner, 1947 Distorsio perdistorta Fulton, 1938 Divalinga quadrisulcata (d'Orbigny, 1842) Divaricella angulifera (Orbigny, 1842) Divaricella dentata (W. Wood, 1815) Divaricella divaricata Divaricella quadrisulcata (d'Orbigny, 1842) Divariscintilla cordiformis P. M. Mikkelsen and Bieler, 1992 Divariscintilla luteocrinita P. M. Mikkelsen and Bieler, 1992 Divariscintilla octotentaculata P. M. Mikkelsen and Bieler, 1992 Divariscintilla troglodytes P. M. Mikkelsen and Bieler, 1989 Divariscintilla yoyo P. M. Mikkelsen and Bieler, 1989 Dolabrifera dolabrifera (Rang, 1828) Dolicholatirus pauli (McGinty, 1955) Donax californicus Conrad, 1837 Donax denticulatus Linnaeus, 1758 Donax fossor Say, 1822 Donax gouldii Dall, 1921 Donax roemeri Philippi, 1849 Donax texasianus Philippi, 1847 Donax variabilis Say, 1822 Donax variegatus Donax vittatus Dondersia californicum Heath, 1911 Dondice occidentalis (Engel, 1925) Doridella batava (Kerbert, 1886) Doridella burchi Ev. Marcus and Er. Marcus, 1967 Doridella depressus Balch, 1899 Doridella obscura A. E. Verrill, 1870 Doridella steinbergae (Lance, 1962) Doridium pusum Marcus and Marcus, 1967 Doridunculus echinulatus G. O. Sars, 1878 Doriopsilla albopunctata (J. G. Cooper, 1863) Doriopsilla areolata (Bergh, 1880) Doriopsilla fedalae Pruvot-fol. 1953 Doriopsilla janaina Marcus and Marcus, 1967 Doriopsilla leia Er. Marcus, 1961 Doriopsilla nigromaculata (Cockerell In Coc. and Eliot, 1905) Doriopsilla pelseneeri Oliviera, 1895 Doriopsilla pharpa Er. Marcus, 1961 Doriopsilla rowena Marcus and Marcus, 1967 Doris nobilis Odhner, 1907 Doris odonoghuei Steinberg, 1963 Doris sticta (Iredale and Donoghue, 1923) Doris verrucosa Linnaeus, 1758 Dorsopsis taningi Thore, 1949 Dorymenia sarsii (Koren and Danielssen, 1877) Dosidicus gigas (D'Orbigny, 1835 in 1834-1847) Dosinia discus (Reeve, 1850) Dosinia elegans (Conrad, 1843) Dosinia exoleta Dosinia lupinus Doto amyra Er. Marcus, 1961 Doto caramella Er. Marcus, 1957 Doto chica Ev. Marcus and Er. Marcus, 1960 Doto cindyneutes Bouchet, 1977 Doto columbiana O'Donoghue, 1921 Doto coronata (Gmelin, 1791) Doto crassicornis M. Sars, 1870 Doto cuspidata Doto divae Ev. Marcus and Er. Marcus, 1960 Doto doerga Ev. Marcus and Er. Marcus, 1963 Doto dunnei Lemche, 1976 Doto eireana Lemche, 1976 Doto formosa A. E. Verrill, 1875 Doto fragilis (Forbes, 1838) Doto hydrallmaniae Marrow Doto hystrix Picton and Brown, 1981 Doto koenneckeri Lemche, 1976 Doto kya Er. Marcus, 1961 Doto lancei Ev. Marcus and Er. Marcus, 1967 Doto lemchei Ortea and Urgorri, 1978 Doto maculata (Montagu, 1804) Doto millbayana Lemche, 1976 Doto nigra Eliot, 1910 Doto onusta Hesse, 1872 Doto papillifera Eliot, 1910 Doto pinnatifida Doto pita Er. Marcus, 1955 Doto sarsiae Marrow, Thrope, Picton, 1992 Doto tuberculata Lemche, 1976 Doto uva Er. Marcus, 1955 Doto varians (MacFarland, 1966) Drechselia danae Joubin, 1931 Dreissena bugensis Andrusov, 1897 Dreissena polymorpha (Pallas, 1771) Drepanotrema aeruginosus (Morelet, 1851) Drepanotrema cimex (Moricand, 1839) Drepanotrema kermatoides (d'Orbigny, 1835) Drillia acrybia (Dall, 1889) Drillia acurugata Dall, 1890 Drillia albicoma Dall, 1889 Drillia amblytera (Bush, 1893) Drillia asaedai (Hertlein and Strong, 1951) Drillia canna Dall, 1889 Drillia cydia (Bartsch, 1943) Drillia detecta (Dall, 1881) Drillia dolana Dall, 1927 Drillia fancherae (Dall, 1903) Drillia fanoa Dall, 1927 Drillia gibbosa (Born, 1778) Drillia inimica Dall, 1927 Drillia interpleura Dall and Simpson, 1901 Drillia orellana Dall, 1927 Drillia pharcida (Dall, 1889) Drillia pilsbryi (Bartsch, 1950) Drillia ponciana Dall and Simpson, 1901 Drillia solida C. B. Adams, 1830 Drillia unimaculata (Sowerby, 1834) Drillia wolfei Tippett, 1995 Drilliola loprestiana (Calcara, 1841) Drilliola pruina (Watson, 1881) Dromus dromas (Lea, 1834) Drupinia grossularia (Röding, 1798) Dryachloa dauca F. G. Thompson and H. G. Lee, 1980 Drymaeus dominicus (Reeve, 1850) Drymaeus dormani (W. G. Binney, 1857) Drymaeus multilineatus (Say, 1825) Echininus cummingi Echininus nodulosus (Pfeiffer, 1839) Echyridella aucklandica (Gray, 1843) Echyridella menziesii (Gray, 1843) Echyridella onekaka Fenwick & Marshall, 2006 Ecrobia truncata (Vanatta, 1924) Ecrobia ventrosa (Montagu, 1803) Egea inermis Joubin, 1933 Elachisina floridana (Rehder, 1943) Elachisina globuloides (Waren, 1972) Elachisina grippi Dall, 1918 Elaeocyma empyrosia (Dall, 1899) Eledone caparti Adam, 1950 Eledone cirrhosa (Lamarck, 1798) Eledone gaucha Haimovici, 1988 Eledone massyae Voss, 1964 Eledone microsicya (Rochebrune, 1884) Eledone moschata (Lamarck, 1798) Eledone nigra (Hoyle, 1910) Eledone palari Lu and Stranks, 1992 Eledone thysanophora Voss, 1962 Eledonella pygmaea Verrill, 1884 Eledonella sheardi Allan, 1945 Eleutheromenia sierra (Pruvot, 1890) Elimia acuta (Lea, 1831) Elimia alabamensis (Lea, 1861) Elimia albanyensis (Lea, 1864) Elimia ampla (Anthony, 1854) Elimia annae Mihalcik and F. G. Thompson, 2002 Elimia annettae (Goodrich, 1941) Elimia arachnoidea (Anthony, 1854) Elimia aterina (Lea, 1863) Elimia athearni (Clench and Turner, 1956) Elimia bellacrenata (Haldeman, 1841) Elimia bellula (Lea, 1861) Elimia boykiniana (Lea, 1840) Elimia brevis (Reeve, 1860) Elimia broccata F. G. Thompson, 2000 Elimia buffyae Mihalcik and F. G. Thompson, 2002 Elimia bullula (Lea, 1861) Elimia caelatura (Reeve, 1860) Elimia cahawbensis (Lea, 1861) Elimia cancellata (Say, 1829) Elimia capillaris (Lea, 1861) Elimia carinifera (Lamarck, 1822) Elimia carinocostata (Lea, 1854) Elimia catenaria (Say, 1822) Elimia catenoides (Lea, 1842) Elimia chiltonensis (Goodrich, 1941) Elimia christyi (Lea, 1862) Elimia clara (Anthony, 1854) Elimia clausa (Lea, 1861) Elimia clavaeformis (Lea, 1841) Elimia clenchi (Goodrich, 1924) Elimia cochliaris (Lea, 1868) Elimia comalensis (Pilsbry, 1890) Elimia comma (Conrad, 1834) Elimia costifera (Reeve, 1861) Elimia crenatella (Lea, 1860) Elimia curreyana (Lea, 1841) Elimia cylindracea (Conrad, 1834) Elimia darwini Mihalcik and F. G. Thompson, 2002 Elimia dickinsoni (Clench and Turner, 1956) Elimia dislocata (Reeve, 1861) Elimia dooleyensis (Lea, 1862) Elimia ebenum (Lea, 1841) Elimia edgariana (Lea, 1841) Elimia exusta Mihalcik and F. G. Thompson, 2002 Elimia fascinans (Lea, 1861) Elimia flava (Lea, 1862) Elimia floridensis (Reeve, 1860) Elimia fusiformis (Lea, 1861) Elimia gibbera (Goodrich, 1922) Elimia glarea Mihalcik and F. G. Thompson, 2002 Elimia godwini F. G. Thompson, 2000 Elimia hartmaniana (Lea, 1861) Elimia haysiana (Lea, 1843) Elimia hydeii (Conrad, 1834) Elimia impressa (Lea, 1841) Elimia inclinans (Lea, 1862) Elimia induta (Lea, 1862) Elimia interrupta (Haldeman, 1840) Elimia interveniens (Lea, 1862) Elimia jonesi (Goodrich, 1936) Elimia lachryma (Reeve, 1861) Elimia laeta (Jay, 1839) Elimia laqueata (Say, 1829) Elimia lecontiana (Lea, 1841) Elimia livescens (Menke, 1830) Elimia macglameriana (Goodrich, 1936) Elimia melanoides (Conrad, 1834) Elimia mihalcikae F. G. Thompson, 2000 Elimia modesta (Lea, 1845) Elimia mutabilis (Lea, 1862) Elimia nassula (Conrad, 1834) Elimia olivula (Conrad, 1834) Elimia ornata (Lea, 1868) Elimia paupercula (Lea, 1862) Elimia perstriata (Lea, 1852) Elimia pilsbryi (Goodrich, 1927) Elimia plicatastriata (Wetherby, 1876) Elimia porrecta (Lea, 1863) Elimia potosiensis (Lea, 1841) Elimia proxima (Say, 1825) Elimia pupaeformis (Lea, 1864) Elimia pupoidea (Anthony, 1854) Elimia pybasii (Lea, 1862) Elimia pygmaea (H. H. Smith, 1936) Elimia semicarinata (Say, 1829) Elimia showalterii (Lea, 1861) Elimia simplex (Say, 1825) Elimia striatula (Lea, 1842) Elimia strigosa (Lea, 1841) Elimia symmetrica (Haldeman, 1841) Elimia taitiana (Lea, 1841) Elimia teres (Lea, 1841) Elimia teretria F. G. Thompson, 2000 Elimia timida (Goodrich, 1942) Elimia troostiana (Lea, 1838) Elimia ucheensis (Lea, 1862) Elimia vanhyningiana (Goodrich, 1921) Elimia vanuxemiana (Lea, 1843) Elimia varians (Lea, 1861) Elimia variata (Lea, 1861) Elimia viennaensis (Lea, 1862) Elimia virginica (Gmelin, 1791) Ellipsaria lineolata (Rafinesque, 1820) Elliptio ahenea (Lea, 1845) Elliptio angustata (Lea, 1831) Elliptio arca (Conrad, 1834) Elliptio arctata (Conrad, 1834) Elliptio chipolaensis (Walker, 1905) Elliptio cistellaeformis (Lea, 1863) Elliptio complanata (Lightfoot, 1786) Elliptio congaraea (Lea, 1831) Elliptio crassidens (Lamarck, 1819) Elliptio dariensis (Lea, 1842) Elliptio downiei (Lea, 1858) Elliptio fisheriana (Lea, 1838) Elliptio folliculata (Lea, 1838) Elliptio fraterna (Lea, 1852) Elliptio fumata (Lea, 1857) Elliptio hopetonensis (Lea, 1838) Elliptio icterina (Conrad, 1834) Elliptio jayensis (Lea, 1838) Elliptio lanceolata (Lea, 1828) Elliptio marsupiobesa Fuller, 1972 Elliptio mcmichaeli Clench & Turner, 1956 Elliptio monroensis (Lea, 1843) Elliptio nigella (Lea, 1852) Elliptio occulta (Lea, 1843) Elliptio producta (Conrad, 1836) Elliptio pullata (Lea, 1856) Elliptio purpurella (Lea, 1857) Elliptio roanokensis (Lea, 1838) Elliptio shepardiana (Lea, 1834) Elliptio spinosa (Lea, 1836) Elliptoideus sloatianus (Lea, 1840) Ellobium dominicense (Ferussac, 1821) Ellobium pellucens (Menke, 1830) Elongaria orientalis (Lea, 1840) Elongaria trompi (Drouët & Chaper, 1892) Elysia canguzua Er. Marcus, 1955 Elysia catulus (Gould, 1870) Elysia chlorotica Gould, 1870 Elysia cornigera Nuttall, 1989 Elysia crispata Mørch, 1863 Elysia evelinae Er. Marcus, 1957 Elysia hedgpethi Er. Marcus, 1961 Elysia ornata (Swainson, 1840) Elysia papillosa A. E. Verrill, 1901 Elysia patina Ev. Marcus, 1980 Elysia picta A. E. Verrill, 1901 Elysia serca Er. Marcus, 1955 Elysia subornata A. E. Verrill, 1901 Elysia tuca Ev. Marcus and Er. Marcus, 1967 Elysia viridis Emarcusia morroensis Roller, 1972 Emarginula conica Lamarck. 1801 Emarginula crassa Sowerby, 1812 Emarginula dentigera Heilprin, 1889 Emarginula fissura Emarginula nordica Perez Farfante, 1947 Emarginula phrixodes Dall, 1927 Emarginula pumila (A. Adams, 1852) Emarginula sicula J. E. Gray, 1825 Emarginula tuberculosa Libassi, 1859 Emarginula velascoensis Embletonia pulchra (Alder and Hancock, 1944) Empleconia vaginata (Dall, 1891) Enaeta cumingii (Broderip, 1882) Enaeta cylleniformis (G. B. Sowerby I, 1844) Enaeta guildingi (Sowerby, 1844) Enaeta reevei (Dall, 1907) Engina caribbaea Bartsch and Rehder, 1939 Engina corinnae Crovo, 1971 Engina strongi Pilsbry and Lowe, 1932 Engina turbinella (Kiener, 1835) Engoniophos unicinctus (Say, 1825) Ennucula linki (Dall, 1916) Ennucula tenuis (Montagu, 1808) Enoploteuthis anapsis Roper, 1964 Enoploteuthis chunii Ishikawa, 1914 Enoploteuthis galaxias Berry, 1918 Enoploteuthis higginsi Burgess, 1982 Enoploteuthis jonesi Burgess, 1982 Enoploteuthis leptura (Leach, 1817) Enoploteuthis obliqua Burgess, 1982 Enoploteuthis octolineata Burgess, 1982 Enoploteuthis reticulata Rancurel, 1970 Enoploteuthis semilineata Alexeyev, 1994 Ensidens dugasti (Morlet, 1892) Ensidens ingallsianus (Lea, 1852) Ensidens jaculus (Rochebrune, 1882) Ensidens sagittarius (Lea, 1856) Ensidens spiculus Pfeiffer, Graf, Cummings & Page, 2021 Ensidens telus Pfeiffer, Graf, Cummings & Page, 2021 Ensis americanus (Gould, 1870) Ensis arcuatus Ensis californicus Dall, 1899 Ensis directus Conrad, 1843 Ensis ensis (Linnaeus, 1758) Ensis magnus Schumacher, 1817 Ensis minor Dall, 1900 Ensis myrae S. S. Berry, 1953 Ensis siliqua Ensitellops pilsbryi (Dall, 1899) Ensitellops protexta (Conrad, 1841) Ensitellops tabula Olsson and Harbison, 1953 Entalina platomodes Watson, 1879 Entalina quinquangularis (Forbes, 1843) Entalinopsis callithrix (Dall, 1889) Entemnotrochus adansonianus (Crosse and P. Fischer, 1861) Enteroctopus dofleini (Wülker, 1910) Enteroctopus juttingi Robson, 1929 Enteroctopus megalocyathus (Gould, 1852) Enteroctopus membranaceus Rochebrune and Mabille, 1889 Enteroxenos parastichopoli (Tikasingh, 1961) Entocolax ludwigii Voigt, 1888 Entoconcha mirabilis J. Muller, 1852 Entodesma beana (d'Orbigny, 1842) Entodesma navicula (A. Adams and Reeve, 1850) Entodesma pictum (G. B. Sowerby I, 1834) Entodesma saxicola (Baird, 1863) Entovalva perrieri (Malard, 1903) Eobania vermiculata (Muller, 1774) Eogonatus tinro (Nesis, 1972) Epicynia devexa Keen, 1946 Epicynia inornata (d'Orbigny, 1842) Epicynia multicarinata (Dall, 1889) Epilepton clarkiae (Clark, 1852) Epilucina californica (Conrad, 1837) Epioblasma ahlstedti Jones & Neves, 2010 Epioblasma arcaeformis (Lea, 1831) Epioblasma aureola Jones & Neves, 2010 Epioblasma biemarginata (Lea, 1857) Epioblasma brevidens (Lea, 1831) Epioblasma capsaeformis (Lea, 1834) Epioblasma cincinnatiensis (Lea, 1840) Epioblasma curtisii (Frierson & Utterback in Utterback, 1916) Epioblasma flexuosa (Rafinesque, 1820) Epioblasma florentina (Lea, 1857) Epioblasma gubernaculum (Reeve, 1865) Epioblasma haysiana (Lea, 1834) Epioblasma lenior (Lea, 1842) Epioblasma lewisii (Walker, 1910) Epioblasma metastriata (Conrad, 1838) Epioblasma obliquata (Rafinesque, 1820) Epioblasma othcaloogensis (Lea, 1857) Epioblasma penita (Conrad, 1834) Epioblasma perobliqua (Conrad, 1836) Epioblasma personata (Say, 1829) Epioblasma propinqua (Lea, 1857) Epioblasma rangiana (Lea, 1838) Epioblasma sampsonii (Lea, 1862) Epioblasma stewardsonii (Lea, 1852) Epioblasma torulosa (Rafinesque, 1820) Epioblasma triquetra (Rafinesque, 1820) Epioblasma turgidula (Lea, 1858) Epioblasma walkeri (Wilson & H. W. Clark, 1914) Episcynia devexa Keen, 1946 Episcynia inornata (d'Orbigny, 1842) Episiphon didymus (Watson, 1879) Episiphon sowerbyi (Guilding, 1834) Epitonium albidum (d'Orbigny, 1842) Epitonium angulatum (Say, 1830) Epitonium apiculatum (Dall, 1889) Epitonium babylonia (Dall, 1889) Epitonium blainei Clench and Turner, 1953 Epitonium borealis Epitonium caamanoi Dall and Bartsch, 1910 Epitonium candeanum (d'Orbigny, 1842) Epitonium catalinae Dall, 1908 Epitonium celesti (Aradas, 1854) Epitonium championi Clench and Turner, 1952 Epitonium clathratulum Epitonium clathrum Linnaeus, 1758 Epitonium columbianum Dall, 1917 Epitonium dallianum (A. E. Verrill and S. Smith, 1880) Epitonium denticulatum (G. B. Sowerby II, 1844) Epitonium echinaticosta (d'Orbigny, 1842) Epitonium eulita (Dale and Simpson, 1901) Epitonium foliaceicosta (d'Orbigny, 1842) Epitonium fractum Dall, 1927 Epitonium frielei (Dall, 1889) Epitonium greenlandicum (G. Perry, 1811) Epitonium humphreysii (Kiener, 1838) Epitonium indianorum (Carpenter, 1864) Epitonium krebsii (Morch, 1874) Epitonium lamellosum (Lamarck, 1822) Epitonium lowei (Dall, 1906) Epitonium matthewsae Clench and Turner, 1952 Epitonium multistriatum (Say, 1826) Epitonium nautlae Morch, 1874 Epitonium nitidella (Dall, 1889) Epitonium nitidum Epitonium novangliae (Couthouy, 1838) Epitonium occidentale (Nyst, 1871) Epitonium pandion Clench and Turner, 1952 Epitonium phymanthi Robertson, 1994 Epitonium polacium (Dall, 1889) Epitonium pourtalesii (A. E. Verrill and S. Smith, 1880) Epitonium rupicola (Kurtz, 1860) Epitonium rushii (Dall, 1889) Epitonium sawinae (Dall, 1903) Epitonium sericifilum (Dall, 1889) Epitonium striatissimum (di Monterosato, 1878) Epitonium tollini Bartsch, 1938 Epitonium turtonae Epitonium unifasciatum (G. B. Sowerby II, 1844) Erato albescens Dall, 1905 Erato columbella Menke, 1847 Erato maugeriae Gray, 1823 Erato vitellina (Hinds, 1844) Erato voluta Eratoidea hematita (Kiener, 1834) Ercolania boodleae (Baba, 1938) Ercolania coerulea Trinchese, 1893 Ercolania funerea (A. Costa, 1867) Ercolania fuscata (Gould, 1870) Eremarionta aquaealbae S. S. Berry, 1922 Eremarionta brunnea (Willett, 1935) Eremarionta greggi W. B. Miller, 1981 Eremarionta immaculata (Willett, 1937) Eremarionta indioensis (Yates, 1890) Eremarionta millepalmarum (S. S. Berry, 1930) Eremarionta morongoana (S. S. Berry, 1929) Eremarionta newcombi Pilsbry and Ferriss, 1923 Eremarionta orocopia (Willett, 1939) Eremarionta rowelli (Newcomb, 1865) Eremariontoides argus (Edson, 1912) Eremopyrgus eganensis Hershler, 1999 Erginus apicinus (Dall, 1879) Erginus moskalevi (Golikov and Kussakin, 1972) Erginus puniceus Lindberg, 1988 Erginus rubellus (Fabricius, 1780) Erginus sybariticus (Dall, 1871) Erinna aulacospira (Ancey, 1899) Erinna newcombi Adams and Adams, 1855 Erosaria acicularis (Gmelin, 1791) Ersilia stancyki Waren, 1980 Ervilia bisculpta Ervilia castanea (Montagu, 1803) Ervilia concentrica (Holmes, 1860) Ervilia nitens (Montagu, 1808) Ervilia sandwichensis Ervilia subcancellata E. A. Smith, 1885 Erycina balliana Dall, 1916 Erycina coronata Dall, 1916 Erycina emmonsi Dall, 1899 Erycina linella Dall, 1899 Erycina periscopiana Dall, 1899 Etheria elliptica Lamarck, 1807 Euaxoctopus panamensis Voss, 1971 Euaxoctopus pillsburyae Voss, 1975 Euaxoctopus scalenus (Hoyle, 1904) Eubela calyx (Dall, 1889) Eubela limacina (Dall, 1881) Eubela mcgintyi Schwengel, 1943 Eubela sofia Eubranchus columbianus (O'Donoghue, 1922) Eubranchus coniclus (Er. Marcus, 1958) Eubranchus doriae (Trinchese, 1874) Eubranchus exiguus (Alder and Hancock, 1848) Eubranchus farrani (Alder and Hancock, 1844) Eubranchus misakiensis Baba, 1960 Eubranchus olivaceus (O'Donoghue, 1922) Eubranchus pallidus (Alder and Hancock, 1842) Eubranchus rustyus (Er. Marcus, 1961) Eubranchus sanjuanensis Roller, 1972 Eubranchus steinbecki Behrens, 1987 Eubranchus tricolor Forbes, 1838 Eubranchus vittatus (Alder and Hancock, 1842) Euchelus corbis (Dall, 1889) Euchelus corrugatus Euchelus dentiferus (Dall, 1889) Euchelus eucastus (Dall, 1889) Euchelus guttarosea Dall, 1889 Euchelus quadricarinatus (Holten, 1802) Euchemotrema cheatumi (R. W. Fullington, 1974) Euchemotrema fasciatum (Pilsbry, 1940) Euchemotrema fraternum (Say, 1824) Euchemotrema hubrichti (Pilsbry, 1940) Euchemotrema leai (A. Binney, 1841) Euchemotrema wichitorum (Branson, 1972) Euciroa elegantissima (Dall, 1881) Eucithara angiostoma Eucithara pusilla Eucleoteuthis luminosa (Sasaki, 1915) Euconulus chersinus (Say, 1821) Euconulus dentatus (Sterki, 1893) Euconulus fulvus (Muller, 1774) Euconulus polygyratus (Pilsbry, 1899) Euconulus trochulus (Reinhardt, 1883) Eucrassatella fluctuata (Carpenter, 1864) Eucrassatella speciosa (A. Adams, 1852) Eudolium bairdii (A. E. Verrill and S. Smith, 1881) Eudolium crosseanum (di Monterosato, 1869) Eudolium thompsoni McGinty, 1955 Euglandina rosea (Ferussac, 1818) Euglandina singleyana (W. G. Binney, 1892) Euglandina texasiana (Pfeiffer, 1857) Eulima alaskensis (Bartsch, 1917) Eulima almo (Bartsch, 1917) Eulima auricincta (Abbott, 1958) Eulima bifasciata D'Orbigny, 1842 Eulima fulvocincta C. B. Adams, 1850 Eulima hemphillii (Dall, 1884) Eulima patula Dall and Simpson, 1901 Eulima raymondi Rivers, 1904 Eulima schwengelae (Bartsch, 1938) Eulimastoma engonium (Bush, 1885) Eulimastoma teres (Bush, 1885) Eulimastoma weberi (Morrison, 1965) Eulimella nitidissima Eulimella polita (A. E. Verrill, 1872) Eulimella smithii (A. E. Verrill, 1880) Eulimostraca hemphilli Eulimostraca subcarinata (d'Orbigny, 1842) Eulithidium affine (C. B. Adams, 1850) Eulithidium bellum (M. Smith, 1937) Eulithidium comptum (Gould, 1855) Eulithidium pterocladicum (Robertson, 1958) Eulithidium pulloide (Carpenter, 1864) Eulithidium rubrilineatum (Strong, 1928) Eulithidium substriatum (Carpenter, 1864) Eulithidium thalassicola (Robertson, 1958) Eumetula arctica (Morch, 1857) Eupera cubensis (Prime, 1865) Eupera singleyi Pilsbry Eupleura caudata (Say, 1822) Eupleura grippi Dall, 1911 Eupleura muriciformis (Broderip, 1833) Eupleura nitida (Broderip, 1833) Eupleura pectinata (Hinds, 1844) Eupleura stimpsoni Dall Eupleura sulcidentata Dall, 1890 Euprymna albatrossae Voss, 1962 Euprymna berryi Sasaki, 1929 Euprymna hoylei Adam, 1986 Euprymna hyllebergi Nateewathana, 1997 Euprymna morsei (Verrill, 1881 in 1880-1881) Euprymna penares (Gray, 1849) Euprymna phenax Voss, 1962 Euprymna pusilla (Pfeffer, 1884) Euprymna schneehageni (Pfeffer, 1884) Euprymna scolopes Berry, 1913 Euprymna stenodactyla (Grant, 1833) Euprymna tasmanica (Pfeffer, 1884) Eurynia dilatata (Rafinesque, 1820) Euspira catena (da Costa, 1778) Euspira heros (Say, 1822) Euspira immaculata (Totten, 1835) Euspira levicula (A. E. Verrill, 1880) Euspira lewisii (Gould, 1847) Euspira montagui (Forbes, 1838) Euspira nana (Møller, 1842) Euspira pallida (Broderip and G. B. Sowerby I, 1829) Euspira pulchella (Risso, 1826) Euspira tenuis (Récluz, 1850) Euspira triseriata (Say, 1826) Euvola diegensis (Dall, 1898) Euvola raveneli (Dall, 1898) Euvola vogdesi (R. Arnold, 1906) Euvola ziczac (Linnaeus, 1758) Evalea amchitkana (Dall and Bartsch, 1909) Exilioidea kelseyi (Dall, 1908) Exilioidea rectirostris (Carpenter, 1864) Fabella pilsbryi (Dall, 1899) Facelina annulicornis (Chamisso and Eysenhardt, 1821) Facelina auriculata (O. F. Muller, 1806) Facelina bostoniensis (Couthouy, 1838) Facelina drummondi Facelina dubia Pruvot-fol, 1949 Facelina stearnsi Cockerell, 1901 Falcidens caudatus Falcidens crossotus Salvini-Plawen, 1968 Falcidens hartmanae (Schwabl, 1961) Falcidens longus Scheltema, 1997 Falcidens macracanthus Scheltema, 1997 Falcidens sagittiferus Salvini-Plawen, 1968 Falcidens sterreri (Salvini-plawen, 1967) Falcidens thorensis Salvini-plawen, 1971 Falsicingula aleutica (Dall, 1887) Fargoa bartschi (Winkley, 1909) Fargoa bushiana (Bartsch, 1909) Fargoa calesi (Bartsch, 1909) Fargoa dianthophila (H. W. Wells and M. J. Wells, 1961) Fargoa dux (Dall and Bartsch, 1906) Fargoa gibbosa (Bush, 1909) Fartulum bakeri (Bartsch, 1920) Fartulum occidentale (Bartsch, 1920) Fartulum orcutti (Dall, 1885) Fasciolaria bullisi Lyons, 1972 Fasciolaria lilium G. Fischer, 1807 Fasciolaria tulipa (Linnaeus, 1758) Favartia alveata (Kiener, 1842) Favartia cellulosa (Conrad, 1846) Favartia lindae Petuch, 1987 Favartia minirosea (Abbott, 1954) Favartia pacei Petuch, 1988 Favartia richardbinghami (Petuch, 1987) Favorinus auritulus Er. Marcus, 1955 Favorinus blianus Lemche and Thompson, 1974 Favorinus branchialis Fedikovella beanii (Dall, 1882) Felaniella cornea (Reeve, 1850) Felaniella parilis (Conrad, 1848) Felimare bayeri Ev. Marcus and Er. Marcus, 1967 Fenimorea fucata (Reeve, 1845) Fenimorea halidorema (Schwengel, 1940) Fenimorea janetae Bartsch, 1943 Ferrissia californica (Rowell, 1863) Ferrissia rivularis (Say, 1817) Ficus carolae Clench, 1945 Ficus communis Roding, 1798 Fimbria fimbriata (Linnaeus, 1758) Finella adamsi (Dall, 1889) Finella barbarensis (Bartsch, 1911) Finella californica (Dall and Bartsch, 1901) Finella dubia (d'Orbigny, 1842) Finella hamlini (Bartsch, 1911) Finella io (Bartsch, 1911) Finella phanea (Bartsch, 1911) Finella pupoides A. Adams, 1860 Finella tenuisculpta (Carpenter, 1864) Fiona pinnata (Eschscholtz, 1831) Firoloida demarestia Lesueur, 1817 Fisherola nuttalli (Haldeman, 1841) Fissidentalium calamus (Dall, 1889) Fissidentalium candidum (Jeffreys, 1877) Fissidentalium capillosum (Jeffreys, 1877) Fissidentalium carduus (Dall, 1889) Fissidentalium exuberans (Locard, 1897) Fissidentalium floridense (J. B. Henderson, 1920) Fissidentalium megathyris (Dall, 1890) Fissidentalium meridionale (Pilsbry and Sharp, 1897) Fissurella alabastites Reeve, 1849 Fissurella angusta (Gmelin, 1791) Fissurella barbadensis (Gmelin, 1791) Fissurella barbouri Farfante, 1943 Fissurella clenchi Farfante, 1943 Fissurella fascicularis Lamarck, 1822 Fissurella microtrema Sowerby, 1835 Fissurella nimbosa (Linnaeus, 1758) Fissurella nodosa (Born, 1778) Fissurella punctata P. Fischer, 1857 Fissurella rosea (Gmelin, 1791) Fissurella rubropicta Pilsbry, 1890 Fissurella subrostrata Sowerby, 1835 Fissurella volcano Reeve, 1849 Fissurellidea bimaculata Dall, 1871 Fissurisepta granulata (Sequenza, 1863) Flabellina cooperi (Cockerell, 1901) Flabellina engeli Ev. Marcus and Er. Marcus, 1968 Flabellina gracilis (Alder and Hancock, 1844) Flabellina nobilis (A. E. Verrill, 1880) Flabellina pedata (Montagu, 1815) Flabellina pellucida (Alder and Hancock, 1843) Flabellina pricei (MacFarland, 1966) Flabellina salmonacea (Couthouy, 1838) Flabellina subrosacea (Eschscholtz, 1831) Flabellina trilineata (O'Donoghue, 1921) Flabellina trophina (Bergh, 1894) Flabellina verrucosa (M. Sars, 1829) Flabellinopsis iodinea (Cooper, 1863) Floridiscrobs dysbatus (Pilsbry and McGinty, 1949) Floridobia alexander (F. G. Thompson, 2000) Floridobia floridana (Frauenfeld, 1863) Floridobia fraterna (F. G. Thompson, 1968) Floridobia helicogyra (F. G. Thompson, 1968) Floridobia leptospira (F. G. Thompson, 2000) Floridobia mica (F. G. Thompson, 1968) Floridobia monroensis (Dall, 1885) Floridobia parva (F. G. Thompson, 1968) Floridobia petrifons (F. G. Thompson, 1968) Floridobia ponderosa (F. G. Thompson, 1968) Floridobia porterae (F. G. Thompson, 2000) Floridobia vanhyningi (Vanatta, 1934) Floridobia wekiwae (F. G. Thompson, 1968) Floridobia winkleyi (Pilsbry, 1912) Fluminicola ahjumawi Hershler, Liu, Frest and Johannes, 2007 Fluminicola anserinus Hershler, Liu, Frest and Johannes, 2007 Fluminicola caballensis Hershler, Liu, Frest and Johannes, 2007 Fluminicola coloradoensis Morrison, 1940 Fluminicola dalli (Call, 1884) Fluminicola erosus Hershler, Liu, Frest and Johannes, 2007 Fluminicola favillaceus Hershler, Liu, Frest and Johannes, 2007 Fluminicola fremonti Hershler, Liu, Frest and Johannes, 2007 Fluminicola fresti Hershler, Liu and Hubbart, 2017 Fluminicola fuscus (Haldeman, 1847) Fluminicola gustafsoni Hershler and Liu, 2012 Fluminicola insolitus Hershler, 1999 Fluminicola klamathensis Liu and Hershler, 2019 Fluminicola lunsfordensis Hershler, Liu, Frest and Johannes, 2007 Fluminicola minutissimus Pilsbry, 1907 Fluminicola modoci Hannibal, 1912 Fluminicola multifarius Hershler, Liu, Frest and Johannes, 2007 Fluminicola neritoides Hershler, Liu, Frest and Johannes, 2007 Fluminicola nuttallianus (Lea, 1838) Fluminicola potemicus Hershler, Liu, Frest and Johannes, 2007 Fluminicola scopulinus Hershler, Liu, Frest and Johannes, 2007 Fluminicola seminalis (Hinds, 1842) Fluminicola turbiniformis (Tryon, 1865) Fluminicola umbilicatus Hershler, Liu, Frest and Johannes, 2007 Fluminicola umpquaensis Hershler, Liu and Hubbart, 2017 Fluminicola virens (Lea, 1838) Fluminicola virginius Hershler, 1999 Fluminicola warnerensis Hershler, Liu, Frest and Johannes, 2007 Folinia bermudezi (Aguayo and Rehder, 1936) Fontigens aldrichi (Call and Beecher, 1886) Fontigens antroecetes (Hubricht, 1972) Fontigens bottimeri (Walker, 1925) Fontigens cryptica Hubricht, 1963 Fontigens morrisoni Hershler, Holsinger and Hubricht, 1990 Fontigens nickliniana (Lea, 1838) Fontigens orolibas Hubricht, 1957 Fontigens proserpina (Hubricht, 1940) Fontigens tartarea Hubricht, 1963 Fontigens turritella Hubricht, 1976 Forreria belcheri (Hinds, 1843) Fossarus bellus Dall, 1889 Fossarus compactus Dall, 1889 Fossarus elegans A. E. Verrill and S. Smith, 1882 Fossarus orbignyi P. Fischer, 1864 Fossula fossiculifera (d'Orbigny, 1835) Fowlerina zetesios Pelseneer, 1906 Fragum mundum (Reeve, 1845) Friersonia iridella (Pilsbry & Frierson, 1908) Frigidoalvania brychia (A. E. Verrill, 1884) Frigidoalvania cruenta (Odhner, 1915) Frigidoalvania janmayeni (Friele, 1878) Frigidoalvania pelagica (Stimpson, 1851) Froekenia clara Hoyle, 1904 Fumonelix archeri (Pilsbry, 1940) Fumonelix christyi (Bland, 1860) Fumonelix jonesiana (Archer, 1938) Fumonelix orestes (Hubricht, 1975) Fumonelix wetherbyi (Bland, 1873) Fumonelix wheatleyi (Bland, 1860) Fusconaia askewi (Marsh, 1896) Fusconaia burkei (Walker in Ortmann & Walker, 1922) Fusconaia cerina (Conrad, 1838) Fusconaia chunii (Lea, 1861) Fusconaia cor (Conrad, 1834) Fusconaia cuneolus (Lea, 1840) Fusconaia escambia Clench & Turner, 1956 Fusconaia flava (Rafinesque, 1820) Fusconaia iheringi (B. H. Wright, 1898) Fusconaia lananensis (Frierson, 1901) Fusconaia masoni (Conrad, 1834) Fusconaia mitchelli (Simpson in Dall, 1896) Fusconaia ozarkensis (Call, 1887) Fusconaia subrotunda (Lea, 1831) Fusinus aepynotus (Dall, 1889) Fusinus alcimus (Dall, 1889) Fusinus amphiurgus (Dall, 1889) Fusinus barbarensis (Trask, 1855) Fusinus benthalis (Dall, 1889) Fusinus bocagei (P. Fischer, 1882) Fusinus couei (Petit de la Saussaye, 1853) Fusinus dowianus Olsson, 1954 Fusinus eucosmius (Dall, 1889) Fusinus harfordii (Stearns, 1871) Fusinus helenae Bartsch, 1939 Fusinus kobelti (Dall, 1877) Fusinus luteopictus (Dall, 1877) Fusinus monksae Dall, 1915 Fusinus stegeri Lyons, 1978 Fusinus timessus (Dall, 1889) Fusinus undatus (Gmelin, 1791) Fusitriton oregonensis (Redfield, 1848) Fustiaria circinatum (G. B. Sowerby, 1823) Fustiaria liodon (Pilsbry and Sharp, 1897) Fustiaria stenoschizum (Pilsbry and Sharp, 1897) Gabrielona nepeanensis Gatliff and Gabriel, 1908 Gabrielona sulcifera Robertson, 1973 Gadila fusiformis (Pilsbry and Sharp, 1898) Gadila gadus (Montagu, 1803) Gadila hepburni (Dall, 1897) Gadila mayori (J. B. Henderson, 1920) Gadila olivii (Scacchi, 1835) Gadila subfusiformes (M. Sars, 1850) Gadilina triquetra (Brocchi, 1814) Gafrarium minimum Galba alberta F. C. Baker, 1919 Galba bulimoides (Lea, 1841) Galba cockerelli (Pilsbry and Ferriss, 1906) Galba cubensis (Pfeiffer, 1839) Galba cyclostoma (Walker, 1808) Galba dalli (F. C. Baker, 1907) Galba exigua (Lea, 1841) Galba galbana (Say, 1825) Galba humilis (Say, 1822) Galba modicella (Say, 1825) Galba obrussa (Say, 1825) Galba parva (Lea, 1841) Galba peninsulae (Walker, 1908) Galba perplexa (F. C. Baker and J. Henderson, 1929) Galba perpolita (Dall, 1905) Galba rustica (Lea, 1841) Galba sonomaensis (Hemphill in Pilsbry and Ferriss, 1906) Galba tazewelliana (Wolf, 1870) Galba techella Haldeman, 1867 Galba truncatula (Muller, 1774) Galba vancouverensis (F. C. Baker, 1939) Galeomma turtoni Turton, 1825 Galiteuthis armata Joubin, 1898 Galiteuthis glacialis (Chun, 1906) Galiteuthis pacifica (Robson, 1948) Galiteuthis phyllura Berry, 1911 Galiteuthis suhmi (Hoyle, 1886) Ganesa abyssicola Bush, 1897 Ganesa basistriata Jeffreys, 1883 Ganesa bithynoides Jeffreys, 1883 Ganesa bushae (Dall, 1927) Ganesa conica (Dall, 1927) Ganesa convexa Bush, 1897 Ganesa dalli Verrill, 1882 Ganesa depressa (Dall, 1927) Ganesa diaphana Verrill, 1884 Ganesa limata (Dall, 1889) Ganesa nitidiuscula Jeffreys, 1883 Ganesa ornata Verrill, 1884 Ganesa peterseni Friele, 1877 Ganesa ponsonbyi Dautzenberg and Fischer, 1879 Ganesa profunda Friele, 1879 Ganesa proxima Tryon, 1888 Ganesa pruinosa Jeffreys, 1883 Ganesa radiata Dall, 1927 Ganesa rugulosa G. O. Sars, 1878 Ganesa smithi Ganesa spinulosa Bush, 1897 Ganesa striata Bush, 1897 Ganesa tenera Jeffreys, 1883 Ganesa turgida Odhner, 1912 Ganesa valvata (Dall, 1927) Ganesa verrilli Tryon, 1888 Gari californica (Conrad, 1849) Gari costulata Gari depressa Gari edentula (Gabb, 1869) Gari fervensis Gari fucata (Hinds, 1845) Gari helenae Olsson, 1961 Gari maxima (Deshayes, 1855) Gari regularis (Carpenter, 1864) Gari tellinella (Lamarck, 1818) Gastrochaena dubia Pennant, 1777 Gastrochaena hians (Gmelin, 1791) Gastrochaena ovata G. B. Sowerby I, 1834 Gastrochaena stimpsoni Tryon, 1861 Gastrocopta abbreviata (Sterki, 1909) Gastrocopta armifera (Say, 1821) Gastrocopta ashmuni (Sterki, 1898) Gastrocopta carnegiei (Sterki, 1916) Gastrocopta clappi (Sterki, 1909) Gastrocopta cochisensis (Pilsbry and Ferriss, 1910) Gastrocopta contracta (Say, 1822) Gastrocopta corticaria (Say, 1816) Gastrocopta cristata (Pilsbry and Vanatta, 1900) Gastrocopta dalliana (Sterki, 1898) Gastrocopta holzingeri (Sterki, 1889) Gastrocopta pellucida (Pfeiffer, 1841) Gastrocopta pentodon (Say, 1822) Gastrocopta pilsbryana (Sterki, 1890) Gastrocopta procera (Gould, 1840) Gastrocopta prototypus (Pilsbry, 1899) Gastrocopta quadridens Pilsbry, 1916 Gastrocopta riograndensis (Pilsbry, 1916) Gastrocopta riparia Pilsbry, 1916 Gastrocopta ruidosensis (Cockerell, 1899) Gastrocopta rupicola (Say, 1821) Gastrocopta servilis (Gould, 1843) Gastrocopta similis (Sterki, 1909) Gastrocopta sterkiana Pilsbry, 1917 Gastrocopta tappaniana (C. B. Adams, 1842) Gastrodonta fonticula Wurtz, 1948 Gastrodonta interna (Say, 1822) Gastropteron chacmol Gosliner, 1989 Gastropteron cinereum Dall, 1925 Gastropteron pacificum Bergh, 1893 Gastropteron rubrum (Rafinesque, 1814) Gastropteron vespertilium Gosliner and Armes, 1984 Gaza fischeri Dall, 1889 Gaza superba (Dall, 1881) Gaza watsoni (Dall, 1881) Geitodoris complanata (A. E. Verrill, 1880) Geitodoris heathi (MacFarland, 1905) Geitodoris immunda Bergh, 1894 Geitodoris planata (Alder and Hancock, 1846) Geitodoris pusae (Er. Marcus, 1955) Gemma gemma (Totten, 1834) Gemmula congener Gemmula interpolata Gemmula microscelida Gemmula monilifera Gemmula periscelida (Dall, 1889) Genitoconia atriolonga Salvini-Plawen, 1967 Genitoconia mariensis Scheltema, 1997 Genitoconia rosea Salvini-Plawen, 1967 Gerdiella corbicula (Dall, 1908) Germainaia geayi (Germain, 1911) Geukensia demissa (Dillwyn, 1817) Geukensia granosissima (G. B. Sowerby III, 1914) Gibberula lavalleeana (d'Orbigny, 1842) Gibberula subtrigona (Carpenter, 1864) Gibbosula confragosa Frierson, 1928 Gibbosula crassa (Wood, 1815) Gibbosula laosensis (Lea, 1863) Gibbosula rochechouartii (Heude, 1875) Gibbula cineraria Gibbula magus (Linnaeus) Gibbula monodonta Gibbula pennanti Gibbula tumida Gibbula umbilicalis Gillia altilis (Lea, 1841) Glans carpenteri (Lamy, 1922) Glans dominguensis (d'Orbigny, 1842) Glans subquadrata (Carpenter, 1864) Glaucus atlanticus Forster, 1777 Gleba cordata Niebuhr, 1776 Glebula rotundata (Lamarck, 1819) Gliabates oregonius Webb, 1959 Globivenus callimorpha (Dall, 1902) Globivenus fordi (Yates, 1890) Globivenus foresti (Fischer-Piette and Testud, 1967) Globivenus listeroides (Fischer-Piette and Testud, 1967) Globivenus rigida (Dillwyn, 1817) Globivenus rugatina (Heilprin, 1886) Glossocardia agassizii (Dall, 1889) Glossodoris acriba Marcus and Marcus, 1967 Glossodoris aegialia (Bergh, 1905) Glossodoris agassizi (Bergh, 1894) Glossodoris banksi (Farmer, 1963) Glossodoris bayeri Glossodoris edenticulata (White, 1952) Glossodoris neona Marcus, 1955 Glossodoris norrisi (Farmer, 1963) Glossodoris porterae (Cockerell, 1902) Glossodoris sedna (Ev. Marcus and Er. Marcus, 1967) Glossodoris sycilla (Bergh, 1890) Glossodoris tura (Marcus and Marcus, 1967) Glossodoris zebra Glycymeris americana (DeFrance, 1829) Glycymeris corteziana Dall, 1916 Glycymeris decussata (Linnaeus, 1758) Glycymeris glycymeris (Linnaeus, 1758) Glycymeris keenae Willett, 1944 Glycymeris pectinata (Gmelin, 1791) Glycymeris septentrionalis (Middendorff, 1849) Glycymeris spectralis Nicol, 1952 Glycymeris subobsoleta (Carpenter, 1864) Glycymeris subtilis (Nicol, 1956) Glycymeris undata (Linnaeus, 1758) Glyphostoma adria Dall, 1919 Glyphostoma cymodoce Dall, 1919 Glyphostoma dentiferum Gabb, 1872 Glyphostoma elsae Bartsch, 1934 Glyphostoma gabbii Dall, 1889 Glyphostoma golfoyaquense Maury, 1917 Glyphostoma hesione (Dall, 1919) Glyphostoma pilsbryi Schwengel, 1940 Glyphostomops hendersoni (Bartsch, 1934) Glyphostomops oenoa (Bartsch, 1934) Glyphoturris diminuta (C. B. Adams, 1850) Glyphoturris eritima (Bush, 1885) Glyphoturris quadrata (Reeve, 1845) Glyphoturris rugirima (Dall, 1889) Glyphyalinia carolinensis (Cockerell, 1890) Glyphyalinia clingmani (Dall, 1890) Glyphyalinia cryptomphala (G. H. Clapp, 1915) Glyphyalinia cumberlandiana (G. H. Clapp, 1919) Glyphyalinia floridana (Morrison, 1937) Glyphyalinia indentata (Say, 1823) Glyphyalinia junaluskana (Clench and Banks, 1932) Glyphyalinia latebricola Hubricht, 1968 Glyphyalinia lewisiana (G. H. Clapp, 1908) Glyphyalinia luticola Hubricht, 1966 Glyphyalinia ocoae Hubricht, 1978 Glyphyalinia pecki Hubricht, 1966 Glyphyalinia pentadelphia (Pilsbry, 1900) Glyphyalinia picea Hubricht, 1976 Glyphyalinia praecox (H. B. Baker, 1930) Glyphyalinia raderi (Dall, 1898) Glyphyalinia rhoadsi (Pilsbry, 1899) Glyphyalinia rimula Hubricht, 1968 Glyphyalinia roemeri (Pilsbry and Ferriss, 1906) Glyphyalinia sculptilis (Bland, 1858) Glyphyalinia specus Hubricht, 1965 Glyphyalinia umbilicata (Cockerell, 1893) Glyphyalinia vanattai (Pilsbry and Walker, 1902) Glyphyalinia virginica (Morrison, 1937) Glyphyalinia wheatleyi (Bland, 1883) Glyptaesopus proctorae (M. Smith, 1936) Glyptostoma gabrielense Pilsbry, 1938 Glyptostoma newberryanum (W. G. Binney, 1858) Godiva rubrolineata Edmunds, 1964 Gonatopsis borealis Sasaki, 1923 Gonatopsis japonica Okiyama, 1969 Gonatopsis makko Okutani and Nemoto, 1964 Gonatopsis octopedatus Sasaki, 1920 Gonatopsis okutanii Nesis, 1972 Gonatus antarcticus Lönnberg, 1898 Gonatus berryi Naef, 1923 Gonatus californiensis Young, 1972 Gonatus fabricii (Lichtenstein, 1818) Gonatus kamtschaticus (Middendorff, 1849) Gonatus madokai Kubodera and Okutani, 1977 Gonatus onyx Young, 1972 Gonatus oregonensis Jefferts, 1985 Gonatus pyros Young, 1972 Gonatus steenstrupi Kristensen, 1981 Gonatus ursabrunae Jefferts, 1985 Goniaeolis typica M. Sars, 1861 Gonidea angulata (Lea, 1838) Goniodoris castanea Alder and Hancock, 1845 Goniodoris nodosa Goodallia triangularis (Montagu, 1803) Gouldia cerina (C. B. Adams, 1845) Gouldia minima (Montagu, 1803) Grandidieria burtoni (Woodward, 1859) Graneledone antarctica Voss, 1976 Graneledone boreopacifica Nesis, 1982 Graneledone challengeri (Berry, 1916) Graneledone macrotyla Voss, 1976 Graneledone verrucosa (Verrill, 1881) Granotoma albrechti (Krause, 1885) Granotoma krausei (Dall, 1886) Granoturris presleyi Lyons, 1972 Granula sandwicensis (Pearse, 1860) Granulina hadria (Dall, 1889) Granulina margaritula (Carpenter, 1857) Granulina ovuliformis (d'Orbigny, 1841) Granulina vitrea Graphis albida Graphis underwoodae Bartsch, 1947 Graptacme calamus (Dall, 1889) Graptacme eborea (Conrad, 1846) Graptacme inversa (Deshayes, 1826) Graptacme perlonga (Dall, 1881) Graptacme semipolita (Broderip and G. B. Sowerby I, 1829) Graptacme semistriolata (Guilding, 1834) Graptacme semistriolatum (Guilding, 1834) Gregariella chenui (Recluz, 1842) Gregariella coarctata (Carpenter, 1857) Gregariella coralliophaga (Gmelin, 1791) Gregariella petagnae (Scacchi, 1832) Gregariella semigranata (Reeve, 1858) Greilada elegans Grimalditeuthis bonplandi (Verany, 1839) Grimpella thaumastocheir Robson, 1928 Grimpoteuthis albatrossi (Sasaki, 1920) Grimpoteuthis antarctica Kubodera and Okutani, 1986 Grimpoteuthis bathynectes Voss and Pearcy, 1990 Grimpoteuthis bruuni Voss, 1982 Grimpoteuthis glacialis (Robson, 1930) Grimpoteuthis hippocrepium (Hoyle, 1904) Grimpoteuthis mawsoni (Berry, 1917) Grimpoteuthis meangensis (Hoyle, 1885) Grimpoteuthis megaptera (Verrill, 1885) Grimpoteuthis pacifica (Hoyle, 1885) Grimpoteuthis plena (Verrill, 1885) Grimpoteuthis tuftsi Voss and Pearcy, 1990 Grimpoteuthis umbellata (Fischer, 1883) Grimpoteuthis wulkeri (Grimpe, 1920) Grippina californica Dall, 1912 Guppya gundlachi (Pfeiffer, 1839) Guppya miamiensis Pilsbry, 1903 Guppya sterkii (Dall, 1888) Gymnobela abyssorum (Locard, 1897) Gymnobela agassizii (A. E. Verrill and S. Smith, 1880) Gymnobela aquilarum (Watson, 1881) Gymnobela emertoni (Verrill, 1884) Gymnobela engonia Verrill, 1884 Gymnobela frielei Verrill, 1885 Gymnobela fulvocincta (Dautzenberg and Fischer, 1896) Gymnobela phyxanor (Watson, 1886) Gymnobela subaraneosa (Dautzenberg and Fischer, 1896) Gymnomenia minuta Scheltema, 1997 Gymnomenia pellucida Odhner, 1921 Gymnotoplax citrina (Ruppell and Leuckart, 1828) Gymnotoplax engeli (Gardiner, 1936) Gymnotoplax quadridens Gyraulus circumstriatus (Tryon, 1866) Gyraulus crista (Linnaeus, 1758) Gyraulus deflectus (Say, 1824) Gyraulus hornensis F. C. Baker, 1934 Gyraulus parvus (Say, 1817) Gyraulus vermicularis (Gould, 1847) Gyrodes depressus Gyrotoma excisa (Lea, 1843) Gyrotoma lewisii (Lea, 1869) Gyrotoma pagoda (Lea, 1845) Gyrotoma pumila (Lea, 1860) Gyrotoma pyramidata (Shuttleworth, 1845) Gyrotoma walkeri (H. H. Smith, 1924) Haasica balzani (Ihering, 1893) Haasodonta fannyae (R. I. Johnson, 1948) Haasodonta vanheurni McMichael & Hiscock, 1958 Habevolutopsius attenuatus (Dall, 1874) Habevolutopsius hirasei (Pilsbry, 1907) Haedropleura septangularis (Montagu, 1803) Halgerda terramtuentis Bertsch and Johnson, 1982 Halicardia flexuosa (A. E. Verrill and S. Smith, 1881) Halicardia perplicata (Dall, 1890) Haliella stenostoma Haliotinella patinaria (Guppy, 1876) Haliotis alfredensis Bartsch, 1915 Haliotis asinina Linnaeus, 1758 Haliotis australis J.H. Gmelin, 1791 Haliotis brazieri Angas, 1869 Haliotis clathrata Reeve, 1846 Haliotis coccoradiata Reeve, 1846 Haliotis corrugata W. Wood, 1828 Haliotis cracherodii Leach, 1814 Haliotis cyclobates Péron, 1816 Haliotis dalli Henderson, 1915 Haliotis discus Reeve, 1846 Haliotis dissona (Iredale, 1929) Haliotis diversicolor Reeve, 1846 Haliotis drogini Owen & Reitz in Geiger and Owen, 2012 Haliotis elegans Koch in Philippi, 1844 Haliotis fatui Geiger, 1999 Haliotis fulgens Philippi, 1845 Haliotis geigeri Owen, 2014 Haliotis gigantea J.H. Gmelin, 1791 Haliotis glabra J.H. Gmelin, 1791 Haliotis iris J.H. Gmelin, 1791 Haliotis jacnensis Reeve, 1846 Haliotis kamtschatkana Jonas, 1845 Haliotis laevigata Donovan, 1808 Haliotis madaka (Habe, 1977) Haliotis mariae W. Wood, 1828 Haliotis marmorata Linnaeus, 1758 Haliotis melculus (Iredale, 1927) Haliotis midae Linnaeus, 1758 Haliotis mykonosensis Owen, Hanavan & Hall, 2001 Haliotis ovina J.H. Gmelin, 1791 Haliotis parva Linnaeus, 1758 Haliotis planata Sowerby II, 1882 Haliotis pourtalesii Dall, 1881 Haliotis pulcherrima J.H. Gmelin, 1791 Haliotis queketti E.A. Smith, 1910 Haliotis roei J. Gray, 1826 Haliotis rubiginosa Reeve, 1846 Haliotis rubra Leach, 1814 Haliotis rufescens Swainson, 1822 Haliotis rugosa Lamarck, 1822 Haliotis scalaris (Leach, 1814) Haliotis semiplicata Menke, 1843 Haliotis sorenseni Bartsch, 1940 Haliotis spadicea Donovan, 1808 Haliotis speciosa Reeve, 1846 Haliotis squamosa J. Gray, 1826 Haliotis stomatiaeformis Reeve, 1846 Haliotis supertexta Lischke, 1870 Haliotis thailandis Dekker & Patamakanthin, 2001 Haliotis tuberculata Linnaeus, 1758 Haliotis unilateralis Lamarck, 1822 Haliotis varia Linnaeus, 1758 Haliotis virginea J.H. Gmelin, 1791 Haliotis walallensis Stearns, 1899 Haliphron atlanticus Steenstrup, 1861 Haliris aequacostata (Howard, 1950) Haliris fischeriana (Dall, 1881) Halistrepta sulcata (Dall, 1904) Halistylus columna (Dall, 1890) Halistylus pupoides (Carpenter, 1864) Halistylus pupoideus (Carpenter, 1864) Hallaxa chani Gosliner and Williams, 1975 Haloceras trichotropoides Waren and Bouchet, 1991 Haloconcha minor Dall, 1919 Haloconcha refleza (Dall, 1884) Halodakra brunnea (Dall, 1916) Halodakra salmonea (Carpenter, 1864) Halodakra subtrigona (Carpenter, 1857) Haminoea antillarum (d'Orbigny, 1841) Haminoea callidegenita Gibson and Chia, 1989 Haminoea crocata Haminoea curta Haminoea cymbalum Haminoea elegans (J. E. Gray, 1825) Haminoea galba Haminoea hydatis (Linnaeus, 1758) Haminoea navicula (Da Costa, 1778) Haminoea petitii (d'Orbigny, 1841) Haminoea solitaria (Say, 1822) Haminoea succinea (Conrad, 1846) Haminoea taylorae Petuch, 1987 Haminoea vesicula (Gould, 1855) Haminoea virescens (G. B. Sowerby II, 1833) Hamiota altilis (Conrad, 1834) Hamiota australis (Simpson, 1900) Hamiota perovalis (Conrad, 1834) Hamiota subangulata (Lea, 1840) Hancockia californica MacFarland, 1923 Hancockia ryrca Marcus, 1957 Hancockia uncinata (Hesse, 1872) Hanleya dalli Hanleya hanleyi (Bean, 1844) Hanleya mendicaria Hanleya nagelfar (Loven, 1842) Hanleya tropicalis Hanleyella asiatica Sirenko, 1973 Hanleyella oldroydi (Dall, 1919) Hapalochlaena fasciata (Hoyle, 1886) Hapalochlaena lunulata (Quoy and Gaimard, 1832) Hapalochlaena maculosa (Hoyle, 1883) Hapalochlaena nierstraszi (Adam, 1938) Haplocochlias cyclophoreus Carpenter, 1864 Haplocochlias lucasensis (Strong, 1934) Haplocochlias minutissima Haplocochlias swifti Vanatta, 1913 Haplotrema alameda Pilsbry, 1930 Haplotrema caelatum (Mazyck, 1886) Haplotrema catalinense (Hemphill, 1890) Haplotrema concavum (Say, 1821) Haplotrema continentis H. B. Baker, 1930 Haplotrema costatum A. G. Smith, 1957 Haplotrema duranti (Newcomb, 1864) Haplotrema keepi (Hemphill, 1890) Haplotrema kendeighi Webb, 1951 Haplotrema minimum (Ancey, 1888) Haplotrema mokelumnense Roth, 1990 Haplotrema sportella (Gould, 1846) Haplotrema transfuga (Hemphill, 1892) Haplotrema vancouverense (I. Lea, 1839) Haplotrema voyanum (Newcomb, 1864) Harmandia somboriensis Rochebrune, 1882 Hastula cinerea (Born, 1778) Hastula hastata (Gmelin, 1791) Hastula maryleeae R. D. Burch, 1965 Hastula salleana (Deshayes, 1859) Haumea juddi Dall, Bartsch, and Rehder, 1938 Haustellum anniae (M. Smith, 1940) Haustellum bellegladeense (Vokes, 1963) Haustellum cabritii (Bernardi, 1859) Haustellum rubidum (F. C. Baker, 1897) Haustellum tryoni (Hidalgo in Tryon, 1880) Hawaiia alachuana (Dall, 1885) Hawaiia minuscula (A. Binney, 1841) Hawaiia neomexicana (Cockerell and Pilsbry, 1900) Heathia porosa (Heath, 1911) Hebetancylus excentricus (Morelet, 1851) Hedylopsis brambelli Hedylopsis loricata Hedylopsis microhedyle Hedylopsis rhopalotecta Hedylopsis riseri M. P. Morse, 1976 Hedylopsis spiculifera Hedylopsis suecica Heilprinia lindae Petuch, 1987 Heilprinia timessa (Dall, 1889) Helcion pectinata (Born, 1778) Heleobia stagnorum (Gmelin, 1791) Heleobops carrikeri Davis and McKee, 1989 Heleobops docimus F. G. Thompson, 1968 Heliacus bicanaliculatus (Valenciennes, 1832) Heliacus bisulcatus (d'Orbigny, 1842) Heliacus cylindricus (Gmelin, 1791) Heliacus infundibuliformis (Gmelin, 1791) Heliacus planispira Pilsbry and Lowe, 1932 Heliacus sigsbeei (Dall, 1889) Helicella obvia (Menke, 1828) Helicina clappi Pilsbry, 1909 Helicocranchia joubini (Voss, 1962) Helicocranchia papillata (Voss, 1960) Helicocranchia pfefferi Massy, 1907 Helicodiscus aldrichianus (G. H. Clapp, 1907) Helicodiscus barri Hubricht, 1962 Helicodiscus bonamicus Hubricht, 1978 Helicodiscus diadema Grimm, 1967 Helicodiscus eigenmanni Pilsbry, 1900 Helicodiscus enneodon Hubricht, 1967 Helicodiscus fimbriatus Wetherby, 1881 Helicodiscus hadenoecus Hubricht, 1962 Helicodiscus hexodon Hubricht, 1966 Helicodiscus inermis H. B. Baker, 1929 Helicodiscus lirellus Hubricht, 1975 Helicodiscus multidens Hubricht, 1962 Helicodiscus notius Hubricht, 1962 Helicodiscus nummus (Vanatta, 1899) Helicodiscus parallelus (Say, 1817) Helicodiscus punctatellus Morrison, 1942 Helicodiscus salmonaceus Hemphill, 1890 Helicodiscus saludensis (Morrison, 1937) Helicodiscus shimeki Hubricht, 1962 Helicodiscus singleyanus (Pilsbry, 1889) Helicodiscus tridens (Morrison, 1935) Helicodiscus triodus Hubricht, 1958 Helisoma anceps (Menke, 1830) Helisoma minus (Cooper, 1870) Helisoma newberryi (Lea, 1858) Helix aperta Born, 1778 Helix aspersa Muller, 1774 Helix pomatia Linnaeus, 1758 Helminthoglypta allyniana (S. S. Berry, 1920) Helminthoglypta allynsmithi Pilsbry, 1939 Helminthoglypta arrosa (W. G. Binney, 1858) Helminthoglypta avus (Bartsch, 1916) Helminthoglypta ayresiana (Newcomb, 1861) Helminthoglypta benitoensis Lowe, 1930 Helminthoglypta berryi Hanna, 1929 Helminthoglypta californiensis (I. Lea, 1838) Helminthoglypta callistoderma Pilsbry, 1917 Helminthoglypta carpenteri (Newcomb, 1861) Helminthoglypta caruthersi Willett, 1934 Helminthoglypta coelata (Bartsch, 1916) Helminthoglypta concolor Roth and Hochberg, 1988 Helminthoglypta contracostae (Pilsbry, 1895) Helminthoglypta crotalina S. S. Berry, 1928 Helminthoglypta cuyama Hanna and A. G. Smith, 1937 Helminthoglypta cuyamacensis (Bartsch, 1895) Helminthoglypta cypreophila (W. G. Binney and Bland, 1869) Helminthoglypta diabloensis (J. G. Cooper, 1869) Helminthoglypta dupetithouarsii (Deshayes, 1840) Helminthoglypta edwardsi Gregg and W. B. Miller, 1976 Helminthoglypta euomphalodes S. S. Berry, 1938 Helminthoglypta exarata (Pfeiffer, 1857) Helminthoglypta expansilabris (Pilsbry, 1898) Helminthoglypta fairbanksi Reeder and W. B. Miller, 1986 Helminthoglypta ferrissi Pilsbry, 1924 Helminthoglypta fieldi Pilsbry, 1930 Helminthoglypta fisheri (Bartsch, 1904) Helminthoglypta fontiphila Gregg, 1931 Helminthoglypta graniticola S. S. Berry, 1926 Helminthoglypta greggi Willett, 1931 Helminthoglypta hertleini Hanna and A. G. Smith, 1937 Helminthoglypta inglesi S. S. Berry, 1938 Helminthoglypta isabella S. S. Berry, 1938 Helminthoglypta jaegeri S. S. Berry, 1928 Helminthoglypta liodoma S. S. Berry, 1938 Helminthoglypta mailliardi Pilsbry, 1927 Helminthoglypta micrometalleoides W. B. Miller, 1970 Helminthoglypta milleri Reeder, 1986 Helminthoglypta mohaveana S. S. Berry, 1927 Helminthoglypta montezuma Reeder and W. B. Miller, 1986 Helminthoglypta napaea S. S. Berry, 1938 Helminthoglypta nickliniana (I. Lea, 1838) Helminthoglypta orina S. S. Berry, 1938 Helminthoglypta petricola (S. S. Berry, 1916) Helminthoglypta phlyctaena (Bartsch, 1916) Helminthoglypta piutensis Willett, 1938 Helminthoglypta proles (Hemphill, 1892) Helminthoglypta reediana Willett, 1932 Helminthoglypta salviae Roth, 1987 Helminthoglypta sanctaecrucis Pilsbry, 1927 Helminthoglypta sequoicola (J. G. Cooper, 1866) Helminthoglypta similans Hanna and A. G. Smith, 1937 Helminthoglypta sonoma Pilsbry, 1937 Helminthoglypta stageri Willett, 1938 Helminthoglypta stiversiana (J. G. Cooper, 1876) Helminthoglypta talmadgei Roth, 1988 Helminthoglypta taylori Reeder and Roth, 1988 Helminthoglypta tejonis S. S. Berry, 1930 Helminthoglypta thermimontis S. S. Berry, 1953 Helminthoglypta traskii (Newcomb, 1861) Helminthoglypta tudiculata (A. Binney, 1843) Helminthoglypta tularensis (Hemphill, 1892) Helminthoglypta umbilicata (Pilsbry, 1898) Helminthoglypta uvasana Roth and Hochberg, 1992 Helminthoglypta vasquezi Roth and Hochberg, 1992 Helminthoglypta venturensis (Bartsch, 1916) Helminthoglypta walkeriana (Hemphill, 1911) Helminthoglypta waltoni Gregg and W. B. Miller, 1976 Helminthoglypta willetti (S. S. Berry, 1920) Helminthope psammobionta Salvini-Plawen, 1991 Hemiarthrum setulosum Carpenter in Dall, 1876 Hemistena lata (Rafinesque, 1820) Hemitoma australis (Quoy and Gaimard, 1832) Hemitoma bella Gabb, 1865 Hemitoma emarginata (de Blainville, 1825) Hemitoma golischae Dall, 1916 Hemitoma hermosa Lowe, 1935 Hemitoma natlandi Durham, 1950 Hemitoma octoradiata (Gmelin, 1791) Hemitoma ostheinerae Hemitrochus varians (Menke, 1829) Hemphillia burringtoni Pilsbry, 1948 Hemphillia camelus Pilsbry and Vanatta, 1897 Hemphillia danielsi Vanatta, 1914 Hemphillia dromedarius Branson, 1972 Hemphillia glandulosa Bland and W. G. Binney, 1872 Hemphillia malonei Pilsbry, 1917 Hemphillia pantherina Branson, 1975 Hendersonia occulta (Say, 1831) Henrya goldmani (Bartsch, 1947) Henrya henryi Bartsch, 1947 Henrya morrisoni Bartsch, 1947 Here excavata (Carpenter, 1857) Here ricthofeni (Gabb, 1866) Hermaea bifida (Montagu, 1815) Hermaea cruciata Gould, 1870 Hermaea dendritica (Alder and Hancock, 1843) Hermaea hillae Marcus and Marcus, 1967 Hermaea kingstoni (T. E. Thompson, 1977) Hermaea olivae Mcfarland, 1966 Hermaea vancouverensis O'Donoghue, 1924 Hermaea verticilata (Ortea, 1984) Hermaeopsis variopicta A. Costa, 1869 Hermissenda crassicornis (Eschscholtz, 1831) Hero formosa Herpeteros angelus (Gregg, 1949) Herviera gliriella Herviera patricia Hesperarion hemphilli (W. G. Binney, 1875) Hesperarion mariae Branson, 1991 Hesperarion niger (J. G. Cooper, 1872) Hespererato columbella (Menke, 1847) Hespererato maugeriae (J. E. Gray, 1832) Hespererato vitellina (Hinds, 1844) Heteranomia squamula (Linnaeus, 1758) Heterodonax bimaculatus (Linnaeus, 1758) Heterodonax pacificus (Conrad, 1837) Heterodoris robusta A. E. Verrill and Emerton, 1882 Heteroschismoides subterfissus (Jeffreys, 1877) Heteroteuthis dagamensis Robson, 1924 Heteroteuthis dispar (Rüppell, 1844) Heteroteuthis hawaiiensis (Berry, 1909) Heteroteuthis weberi Joubin, 1902 Hexabranchus morsomus Marcus and Marcus, 1962 Hexaplex fulvescens (G. B. Sowerby II, 1834) Hiatella arctica (Linnaeus, 1767) Hiatella azaria (Dall, 1881) Hiatella glaciana Hiatella pholadis (Linnaeus, 1771) Hiatella striata Fleuriau, 1802 Hindsiclava alesidota (Dall, 1889) Hindsiclava macilenta (Dall, 1889) Hinea lineata (E. M. da Costa, 1778) Hinemoa indica Hinnites multirugosus (Gale, 1928) Hipponix antiquatus (Linnaeus, 1767) Hipponix cranioides Carpenter, 1864 Hipponix grayanus Hipponix imbricatus Hipponix pilosus Hipponix subrufus (Lamarck, 1819) Hipponix tumens Carpenter, 1864 Histioteuthis arcturi (Robson, 1948) Histioteuthis atlantica (Hoyle, 1885) Histioteuthis bonnellii (Férussac, 1834) Histioteuthis celetaria (Voss, 1960) Histioteuthis corona (Voss and Voss, 1962) Histioteuthis eltaninae Voss, 1969 Histioteuthis heteropsis (Berry, 1913) Histioteuthis hoylei (Goodrich, 1896) Histioteuthis macrohista Voss, 1969 Histioteuthis meleagroteuthis (Chun, 1910) Histioteuthis miranda (Berry, 1918) Histioteuthis oceani (Robson, 1948) Histioteuthis reversa (Verrill, 1880) Hochbergellus hirsutus Roth and W. B. Miller, 1992 Hojeda inaguensis (Weinland, 1880) Holospira arizonensis Stearns, 1890 Holospira bilamellata Dall, 1895 Holospira campestris Pilsbry and Ferriss, 1915 Holospira chiricahuana Pilsbry, 1905 Holospira cionella Pilsbry, 1905 Holospira cockerelli Dall, 1897 Holospira crossei Dall, 1895 Holospira danielsi Pilsbry and Ferriss, 1915 Holospira ferrissi Pilsbry, 1905 Holospira goldfussi (Menke, 1847) Holospira hamiltoni Dall, 1897 Holospira mesolia Pilsbry, 1912 Holospira metcalfi F. G. Thompson, 1974 Holospira millestriata Pilsbry and Ferriss, 1915 Holospira montivaga Pilsbry, 1946 Holospira oritis Pilsbry and Cheatum, 1951 Holospira pasonis Dall, 1895 Holospira pityis Pilsbry and Cheatum, 1951 Holospira regis Pilsbry and Cockerell, 1905 Holospira riograndensis Pilsbry, 1946 Holospira sherbrookei Gilbertson, 1989 Holospira tantalus Bartsch, 1906 Holospira whetstonensis Pilsbry and Ferriss, 1923 Holospira yucatanensis Bartsch, 1906 Holsingeria unthanksensis Hershler, 1989 Homalopoma albidum (Dall, 1881) Homalopoma baculum (Carpenter, 1864) Homalopoma berryi J. H. McLean, 1964 Homalopoma carpenteri Pilsbry, 1888 Homalopoma cordellensis J. H. McLean, 1996 Homalopoma draperi J. H. McLean, 1984 Homalopoma engbergi (Willett, 1929) Homalopoma grippi (Dall, 1911) Homalopoma indutum (Watson, 1879) Homalopoma juanensis (Dall, 1919) Homalopoma lacunatum (Carpenter, 1864) Homalopoma luridum (Dall, 1885) Homalopoma mimicum LaFollette, 1976 Homalopoma panamense (Dall, 1908) Homalopoma paucicostatum (Dall, 1871) Homalopoma peloritanum (Cantraine, 1835) Homalopoma philipiana (Dall, 1889) Homalopoma radiatum (Dall, 1918) Homalopoma sanguineus (Linnaeus, 1758) Homalopoma subobsoletum Willett, 1937 Hopkinsia rosacea MacFarland, 1905 Horologica pupa (Dall and Simpson, 1901) Houbricka incisa (Bush, 1899) Hoyia sheldoni (Pilsbry, 1890) Humboldtiana agavophila Pratt, 1971 Humboldtiana cheatumi Pilsbry, 1935 Humboldtiana chisosensis Pilsbry, 1927 Humboldtiana edithae Parodiz, 1954 Humboldtiana ferrissiana Pilsbry, 1928 Humboldtiana fullingtoni Cheatum, 1972 Humboldtiana hoegiana (von Martens, 1892) Humboldtiana palmeri Clench and Rehder, 1930 Humboldtiana texana Pilsbry, 1927 Humboldtiana ultima Pilsbry, 1927 Humilaria kennerleyi (Reeve, 1863) Huttonella bicolor (Hutton, 1834) Huxleyia munita (Dall, 1898) Hyalina cineracea (Dall, 1889) Hyalina gracilis (C. B. Adams, 1851) Hyalina lactea (Kiener, 1841) Hyalina nitida (Hinds, 1844) Hyalina pallida (Linnaeus, 1758) Hyalina styria Dall, 1889 Hyalocylis striata (Rang, 1828) Hyalopecten biscayensis (Locard, 1886) Hyalopecten dilectus (Verrill and Bush, 1897) Hyalopecten eucymatus (Dall, 1898) Hyalopecten frigidus (Jensen, 1912) Hyalopecten parvulinus (Locard, 1897) Hyalopecten undatus (A. E. Verrill and S. Smith, 1885) Hyaloteuthis pelagica (Bosc, 1802) Hydatina physis (Linnaeus, 1758) Hydrobia acuta (Draparnaud, 1805) Hydrocena cattaroense (Pfeiffer, 1841) Hydromyles globulosus (Rang, 1825) Hypermastus randolphi (Vanatta, 1900) Hypselodoris bayeri (Ev. Marcus and Er. Marcus, 1967) Hypselodoris californiensis (Bergh, 1879) Hypselodoris edenticulata (White, 1952) Hypselodoris sycilla (Bergh, 1890) Hypselodoris webbi (d'Orbigny, 1839) Hyridella australis (Lamarck, 1819) Hyridella depressa (Lamarck, 1819) Hyridella drapeta (Iredale, 1934) Hyridella glenelgensis (Dennant, 1898) Hyridella guppyi (E.A. Smith, 1885) Hyridella misoolensis (Schepman, 1897) Hyridella narracanensis (Cotton & Gabriel, 1932) Hyriopsis bialata Simpson, 1900 Hyriopsis delaportei (Crosse & Fischer, 1876) Hyriopsis desowitzi Brandt, 1974 Hyriopsis khoratensis Pfeiffer, Graf, Cummings & Page, 2021 Hyriopsis kratiensis Pfeiffer, Graf, Cummings & Page, 2021 Hyriopsis myersiana (Lea, 1856) Hyriopsis panhai Jeratthitikul, Paphatmethin, Zieritz, Lopes-Lima & Ngor, 2021 Hyriopsis phuphaniensis Pfeiffer, Graf, Cummings & Page, 2021 Hyriopsis sakhonensis Pfeiffer, Graf, Cummings & Page, 2021 Hyriopsis velthuizeni (Schepman, 1896) Idaholanx fresti Clark, Campbell and Lydeard, 2017 Idasola argentea (Jeffreys, 1876) Idioctopus gracilipes Taki, 1962 Idiosepius biserialis Voss, 1962 Idiosepius macrocheir Voss, 1962 Idiosepius minimus (D'Orbigny, 1835 in Férussac and D'Orbigny, 1834-1848) Idiosepius notoides Berry, 1921 Idiosepius paradoxus (Ortmann, 1888) Idiosepius picteti (Joubin, 1894) Idiosepius pygmaeus Steenstrup, 1881 Idiosepius thailandicus Chotiyaputta, C., T. Okutani, and S. Chaitiamvong, 1991 Idioteuthis cordiformis (Chun, 1908) Idioteuthis danae (Joubin, 1933) Idioteuthis famelica (Berry, 1909) Idioteuthis hjorti (Chun, 1913) Idioteuthis latipinna Sasaki, 1916 Idioteuthis okutanii Salcedo-Vargas, 1997 Idioteuthis tyroi Salcedo-Vargas, 1997 Iheringella isocardioides (Lea, 1856) Iheringella semisulcata (H. Adams, 1870) Illex argentinus (Castellanos, 1960) Illex coindetii (Verany, 1839) Illex illecebrosus (Lesueur, 1821) Illex oxygonius Roper, Lu and Mangold, 1969 Indochinella pugio (Benson, 1862) Indonaia andersoniana (Nevill, 1877) Indonaia bonneaudii (Eydoux, 1838) Indonaia caerulea (Lea, 1831) Indonaia cylindrica (Annandale & Prashad, 1919) Indonaia gratiosa (Philippi, 1843) Indonaia involuta (Hanley, 1856) Indonaia olivaria (Lea, 1831) Indonaia rugosa (Gmelin, 1791) Indonaia shurtleffiana (Lea, 1856) Indonaia subclathrata (Martens, 1899) Indonaia substriata (Lea, 1856) Indonaia theobaldi (Preston, 1912) Indopseudodon bogani (Bolotov, Kondakov & Konopleva in Bolotov et al., 2017) Indopseudodon crebristriatus (J. G. Anthony, 1865) Indopseudodon indawgyiensis Bolotov, Konopleva, Kondakov & Vikhrev, 2023 Indopseudodon kayinensis (Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020) Indopseudodon salwenianus (Gould, 1844) Inflectarius approximans (G. H. Clapp, 1905) Inflectarius downieanus (Bland, 1861) Inflectarius edentatus (Sampson, 1889) Inflectarius ferrissi (Pilsbry, 1897) Inflectarius inflectus (Say, 1821) Inflectarius kalmianus (Hubricht, 1965) Inflectarius magazinensis (Pilsbry and Ferriss, 1907) Inflectarius rugeli (Shuttleworth, 1852) Inflectarius smithi (G. H. Clapp, 1905) Inflectarius subpalliatus (Pilsbry, 1893) Inflectarius verus (Hubricht, 1954) Iniforis turristhomae (Holten, 1802) Inioteuthis capensis Voss, 1962 Inioteuthis japonica (Tilesius, 1845 in Férussac and D'Orbigny, 1834-1848) Inioteuthis maculosa Goodrich, 1896 Inodrillia acova Bartsch, 1943 Inodrillia aepynota (Dall, 1889) Inodrillia amblytera (Bush, 1893) Inodrillia avira Bartsch, 1943 Inodrillia carpenteri (A. E. Verrill and S. Smith, 1880 Inodrillia dalli (A. E. Verrill and S. Smith, 1882) Inodrillia dido Bartsch, 1943 Inodrillia gibba Bartsch, 1943 Inodrillia hatterasensis Bartsch, 1943 Inodrillia hesperia Bartsch, 1943 Inodrillia hilda Bartsch, 1943 Inodrillia ino Bartsch, 1943 Inodrillia martha Bartsch, 1943 Inodrillia miamia Bartsch, 1943 Inodrillia nucleata (Dall, 1881) Inodrillia vetula Bartsch, 1943 Inversidens brandtii (Kobelt, 1879) Inversidens pantoensis (Neumayr, 1899) Inversidens rentianensis Wu & Wu in Wu et al., 2021 Inversiunio jokohamensis (Ihering, 1893) Inversiunio reinianus (Kobelt, 1879) Inversiunio verrucosus Kondo, Hyun & Seung-Ho, 2007 Inversiunio yanagawensis (Kondo, 1982) Io fluvialis (Say, 1825) Iothia fulva (O. F. Mueller, 1776) Iothia lindbergi J. H. McLean, 1985 Iphigenia brasiliana (Lamarck, 1818) Iphitus robertsi Sabelli and Taviani, 1997 Ipnobius robustus (Hershler, 1989) Iredalea pupoidea Iredalea pygmaea Iredalea victor Irenosyrinx hypomela (Dall, 1889) Iridoteuthis iris (Berry, 1909) Iridoteuthis maoria Dell, 1959 Irus irus Schmidt, 1818 Irusella lamellifera (Conrad, 1837) Ischadium recurvum (Rafinesque, 1820) Ischnochiton abyssicola Ischnochiton alascensis Thiele, 1910 Ischnochiton albus (Linnaeus, 1767) Ischnochiton dilatosculptus Kaas, 1982 Ischnochiton erythronotus (C. B. Adams, 1845) Ischnochiton exaratus (G. O. Sars, 1878) Ischnochiton floridanus Ischnochiton hartmeyeri Thiele, 1910 Ischnochiton lividus Ischnochiton newcombi Pilsbry, 1892 Ischnochiton niveus Ferreira, 1987 Ischnochiton papillosus (C. B. Adams, 1845) Ischnochiton pectinatus Ischnochiton pseudovirgatus Kaas, 1972 Ischnochiton purpurascens Ischnochiton retiporosus Ischnochiton ritteri Ischnochiton ruber Ischnochiton scrobiculatus (Middendorff, 1847) Ischnochiton striolatus (J. E. Gray, 1828) Iselica anomala (C. B. Adams, 1850) Iselica obtusa (Carpenter, 1864) Iselica ovoidea (Gould, 1853) Isognomon alatus (Gmelin, 1791) Isognomon bicolor (C. B. Adams, 1845) Isognomon janus Carpenter, 1857 Isognomon radiatus (Anton, 1839) Isognomon recognitus (Mabille, 1895) Isomonia alberti (Dautzenberg and Fischer, 1896) Isorobitella trigonalis (Carpenter, 1857) Isselia hiloensis Ithycythara auberiana (d'Orbigny, 1842) Ithycythara cymella (Dall, 1889) Ithycythara lanceolata (C. B. Adams, 1850) Ithycythara parkeri Abbott, 1958 Ithycythara pentagonalis (Reeve, 1845) Ithycythara psila (Bush, 1885) Ividella navisa (Dall and Bartsch, 1907) Ividia abbotti (Olsson and McGinty, 1958) Ividia havanensis (Pilsbry and Aguayo, 1933) Janolus barbarensis (J. G. Cooper, 1863) Janolus comis Er. Marcus, 1955 Janolus cristatus (delle Chiaje, 1841) Janolus fuscus O'Donohue, 1924 Janolus hyalinus (Alder and Hancock, 1854) Janolus mucloc (Er. Marcus, 1958) Janthina exigua Lamarck, 1816 Janthina globosa Swainson, 1822 Janthina janthina (Linnaeus, 1758) Janthina pallida W. Thompson, 1840 Japetella diaphana Hoyle, 1885 Japetella heathi (Berry, 1911) Japonactaeon pusillus (Forbes, 1843) Jaspidella blanesi (Ford, 1898) Jaspidella jaspidea (Gmelin, 1791) Jaspidella miris Olsson, 1956 Jorunna pardus Behrens and R. Henderson, 1981 Jorunna tomentosa (Cuvier, 1804) Jouannetia quillingi Turner, 1955 Joubiniteuthis portieri (Joubin, 1916) Juga acutifilosa (Stearns, 1890) Juga bulbosa (Gould, 1847) Juga chacei (Henderson, 1935) Juga hemphilli (J. Henderson, 1935) Juga interioris (Goodrich, 1944) Juga laurae (Goodrich, 1944) Juga newberryi (Lea, 1860) Juga nigrina (Lea, 1856) Juga occata (Hinds, 1844) Juga plicifera (Lea, 1838) Juga shastaensis (Lea, 1856) Juga silicula (Gould, 1847) Jujubinus exasperatus (Pennant, 1777) Jujubinus miliaris (Brocchi, 1814) Jujubinus montagui (W. Wood, 1828) Jujubinus striatus (Linnaeus, 1758) Juliacorbula cubaniana (d'Orbigny, 1842) Juliacorbula luteola (Carpenter, 1864) Juturnia kosteri (Taylor, 1987) Juturnia tularosae Hershler, Liu and Stockwell, 2002 Juvenichiton deplanatus (Sirenko, 1975) Juvenichiton grandispina (Sirenko, 1975) Juvenichiton saccharinus (Dall, 1878) Kaiparapelta askewi J. H. McLean and Harasewych, 1995 Kaloplocamus ramosus (Cantraine, 1835) Kaloplocamus verrilli Martynov, 2002 Katharina tunicata (W. Wood, 1815) Kelletia kelletii (Forbes, 1850) Kellia cycladea S. V. Wood, 1844 Kellia suborbicularis (Montagu, 1803) Kelliella galatheae Kelliella miliaris (Philippi, 1844) Kelliella nitida Kermia brunnea Kermia cylindrica Kermia daedalea Kermia producta Kermia pumilia Khairuloconcha lunbawangorum Zieritz, Rahim, Taha & Pfeiffer in Zieritz et al., 2021 Khairuloconcha sahanae Zieritz, Jainih & Lopes-Lima in Zieritz et al., 2021 Kleinella cedrosa (Dall, 1884) Koloonella hawaiiensis Kondakovia longimana Filippova, 1972 Koreosolenaia sitgyensis Lee, Kim, Lopes-Lima & Bogan in Lopes-Lima et al., 2020 Kryptos koehleri (Locard, 1896) Kurtzia arteaga (Dall and Bartsch, 1910) Kurtziella accincta (Montagu, 1808) Kurtziella atrostyla (Tryon, 1884) Kurtziella beta (Dall, 1919) Kurtziella cerina (Kurtz and Stimpson, 1851) Kurtziella citronella (Dall, 1886) Kurtziella diomedea Bartsch and Rehder, 1939 Kurtziella dorvilliae (Reeve, 1845) Kurtziella limonitella (Dall, 1884) Kurtziella newcombei (Dall, 1919) Kurtziella perryae Bartsch and Rehder, 1939 Kurtziella plumbea (Hinds, 1843) Kurtziella rubella (Kurtz and Stimpson, 1851) Kurtziella serga (Dall, 1881) Kurtziella variegata (Carpenter, 1864) Kurtzina beta (Dall, 1919) Kylix halocydne (Dall, 1919) Lacteoluna selenina (Gould, 1848) Lacuna carinata Gould, 1848 Lacuna crassior (Montagu, 1803) Lacuna marmorata Dall, 1919 Lacuna neritoidea Gould, 1840 Lacuna pallidula (E. M. da Costa, 1778) Lacuna parva (E. M. da Costa, 1778) Lacuna porrecta Carpenter, 1864 Lacuna succinea S. S. Berry, 1953 Lacuna unifasciata Carpenter, 1856 Lacuna vaginata (Dall, 1918) Lacuna variegata Carpenter, 1864 Lacuna vincta (Montagu, 1803) Laemodonta cubensis (Pfeiffer, 1854) Laevapex fuscus (C. B. Adams, 1841) Laevicardium crassum Laevicardium elatum (G. B. Sowerby I, 1833) Laevicardium laevigatum (Linnaeus, 1758) Laevicardium mortoni (Conrad, 1830) Laevicardium pictum (Ravenel, 1861) Laevicardium substriatum (Conrad, 1837) Laevicardium sybariticum (Dall, 1886) Laevicaulis alte (Ferussac, 1821) Laevichlamys multisquamata (Dunker, 1864) Laevicordia horrida Allen and Turner, 1974 Laevidentalium callipeplum (Dall, 1889) Laevidentalium caudani (Locard, 1886) Laevidentalium didymum (Watson, 1879) Laevidentalium incertum (Deshayes, 1825) Laevidentalium rectius (Carpenter, 1864) Laevinesta atlantica (Perez Farfante, 1947) Laevipilina hyalina J. H. McLean, 1979 Laila cockerelli MacFarland, 1905 Lamellaria diegoensis Dall, 1885 Lamellaria digueti Rochebrune, 1895 Lamellaria koto Schwengel, 1944 Lamellaria latens Lamellaria leucosphaera Schwengel, 1942 Lamellaria pellucida Verrill, 1880 Lamellaria perspicua (Linnaeus, 1758) Lamellaria rhombica Dall, 1871 Lamellaria stearnsii (Dall, 1871) Lamellaxis clavulinus (Potiez and Michaud, 1838) Lamellaxis gracilis (Hutton, 1834) Lamellaxis mauritianus (Pfeiffer, 1952) Lamellaxis micra (d'Orbigny, 1835) Lamellidens candaharicus (Hutton, 1849) Lamellidens chindwinensis Bolotov, Konopleva, Chan, Lunn, Win, Gofarov, Kondakov, Tomilova & Vikhrev, 2022 Lamellidens corrianus (Lea, 1834) Lamellidens ferrugineus (Annandale, 1918) Lamellidens friersoni (Simpson, 1914) Lamellidens generosus (Gould, 1847) Lamellidens jenkinsianus (Benson, 1862) Lamellidens lamellatus (Lea, 1838) Lamellidens mainwaringi Preston, 1912 Lamellidens marginalis (Lamarck, 1819) Lamellidens nongyangensis Preston, 1912 Lamellidens savadiensis (Nevill, 1877) Lamellidens unioides Nesemann & Sharma in Nesemann et al., 2007 Lamellidoris aspera Alder and Henderson, 1842 Lamellidoris diademata (Gould, 1870) Lamellidoris diaphana Adler and Hancock, 1845 Lamellidoris fusca (Muller, 1776) Lamellidoris grisea (Gould, 1870) Lamellidoris muricata (Muller, 1776) Lamellidoris oblongata Lamellidoris pusilla Lamellidoris tenella (Gould, 1870) Lamellidoris varians Lamellitrochus carinatus Quinn, 1991 Lamellitrochus inceratus Quinn, 1991 Lamellitrochus lamellosus (A. E. Verrill and S. Smith, 1880) Lametila abyssorum Lampadioteuthis megaleia Berry, 1916 Lampeia adamsi (MacGinitie, 1959) Lamproscapha ensiformis (Spix & Wagner, 1827) Lamproscapha falsa (Simpson, 1900) Lamprotula bazini (Heude, 1877) Lamprotula blaisei (Dautzenberg & Fischer, 1905) Lamprotula caveata (Heude, 1877) Lamprotula chiai Chow, 1958 Lamprotula cornuumlunae (Heude, 1883) Lamprotula divergens (Benson in Cantor, 1842) Lamprotula elongata Liu, Zhang & Wang, 1980 Lamprotula kouangensis (Simpson, 1900) Lamprotula leaii (Griffith & Pidgeon, 1833) Lamprotula linae Zhuang & Jing, 2013 Lamprotula microsticta (Heude, 1877) Lamprotula nanningensis (Qian, Fang & He, 2015) Lamprotula paschalis (Heude, 1883) Lamprotula plumbea (Chemnitz, 1795) Lamprotula salaputium (Martens, 1902) Lamprotula seomjinensis (Kondo, Hyun & Seung-Ho, 2007) Lamprotula triclava (Heude, 1877) Lampsilis abrupta (Say, 1831) Lampsilis bergmanni Inoue & Randklev, 2020 Lampsilis binominata Simpson, 1900 Lampsilis bracteata (Gould, 1855) Lampsilis brittsi Simpson, 1900 Lampsilis cardium Rafinesque, 1820 Lampsilis cariosa (Say, 1817) Lampsilis dolabraeformis (Lea, 1838) Lampsilis fasciola Rafinesque, 1820 Lampsilis floridensis (Lea, 1852) Lampsilis higginsii (Lea, 1857) Lampsilis hydiana (Lea, 1838) Lampsilis ornata (Conrad, 1835) Lampsilis ovata (Say, 1817) Lampsilis powellii (Lea, 1852) Lampsilis radiata (Gmelin, 1791) Lampsilis rafinesqueana Frierson, 1927 Lampsilis reeveiana (Lea, 1852) Lampsilis satura (Lea, 1852) Lampsilis sietmani Keogh & Simons, 2019 Lampsilis siliquoidea (Barnes, 1823) Lampsilis splendida (Lea, 1838) Lampsilis straminea (Conrad, 1834) Lampsilis streckeri Frierson, 1927 Lampsilis teres (Rafinesque, 1820) Lampsilis virescens (Lea, 1858) Lanceolaria acrorrhyncha (Martens, 1894) Lanceolaria bilirata (Martens, 1902) Lanceolaria cylindrica (Simpson, 1900) Lanceolaria eucylindrica Lin, 1962 Lanceolaria fruhstorferi (Dautzenberg, 1900) Lanceolaria gladiola (Heude, 1877) Lanceolaria grayii (Griffith & Pidgeon, 1833) Lanceolaria kihirai Kondo & Hattori, 2019 Lanceolaria laevis (Martens, 1902) Lanceolaria lanceolata (Lea, 1856) Lanceolaria oxyrhyncha (Martens, 1861) Lanceolaria triformis (Heude, 1877) Lanceolaria yueyingae Zhuang & Jing, 2013 Lanx alta (Tryon, 1865) Lanx patelloides (Lea, 1856) Lapinura divae (Ev. Marcus and Er. Marcus, 1963) Lasaea adansoni (Gmelin, 1791) Lasaea cistula Keen, 1938 Lasaea rubra (Montagu, 1803) Lasaea subviridis Dall, 1899 Lasmigona alabamensis Clarke, 1985 Lasmigona complanata (Barnes, 1823) Lasmigona compressa (Lea, 1829) Lasmigona costata (Rafinesque, 1820) Lasmigona decorata (Lea, 1852) Lasmigona holstonia (Lea, 1838) Lasmigona subviridis (Conrad, 1835) Latiaxis babelis (Requien, 1849) Latiaxis costatus (Blainville, 1832) Latiaxis dalli (Emerson and D'Attilio, 1963) Latiaxis juliae Clench and Aquayo, 1939 Latiaxis kincaidi Dall, 1919 Latiaxis mansfieldi (McGinty, 1940) Latirus angulatus (Roding, 1798) Latirus carinifer Lamarck, 1822 Latirus infundibulum (Gmelin, 1791) Latirus nematus Woodring, 1928 Laurentiphysa chippevarum Taylor, 2003 Leachia atlantica (Degner, 1925) Leachia cyclura Lesueur, 1821 Leachia ellipsoptera (Adams and Reeve, 1848) Leachia pacifica (Issel, 1908) Leachia rynchophorus (Rochebrune, 1884) Learchis poica Ev. Marcus and Er. Marcus, 1960 Leaunio lienosus (Conrad, 1834) Leaunio ortmanni (Walker, 1925) Leaunio pataecus Watters, 2018 Leaunio umbrans (Lea, 1857) Leaunio vanuxemensis (Lea, 1838) Ledella acuminata (Jeffreys, 1870) Ledella fiascona (Dall, 1916) Ledella galatheae Knudsen, 1970 Ledella pustulosa (Jeffreys, 1876) Ledella similis Allen and Hannah, 1989 Ledella sublevis Verrill and Bush, 1898 Ledella ultima (E. A. Smith, 1885) Leguminaia anatolica Gürlek, Kebapci and Lopes-Lima in Lopes-Lima et al., 2021 Leguminaia saulcyi (Bourguignat, 1852) Leguminaia wheatleyi (Lea, 1862) Lehmannia valentiana (Ferussac, 1821) Leidyula floridana (Leidy, 1851) Leidyula kraussi (Ferussac, 1823) Leidyula moreleti (Crosse and P. Fischer, 1872) Leidyula sloani (Cuvier, 1816) Leila blainvilliana (Lea, 1834) Leila esula (d'Orbigny, 1835) Leiomya claviculata (Dall, 1881) Leiomya halimera Dall, 1886 Leiomya striatella Verrill and Bush, 1898 Lemiox rimosus (Rafinesque, 1831) Lens comptus (Deshayes in Deshayes & Jullien, 1876) Lens contradens (Lea, 1838) Lens eximius (Lea, 1856) Lens fultoni (Haas, 1930) Lens inornatus (Lea, 1856) Lens lugens (Drouët & Chaper, 1892) Lens maenamensis Pfeiffer, Graf, Cummings & Page, 2021 Lens micropterus (Morelet, 1866) Lens misellus (Morelet, 1865) Lens novoselovi (Konopleva, Bolotov, Spitsyn, Kondakov, Gofarov & Vikhrev, 2019) Lens pallegoixi (Sowerby, 1867) Lens rolfbrandti (Jeratthitikul & Panha in Jeratthitikul et al., 2019) Lens semmelinki (Martens, 1891) Leoparreysia burmana (Blanford, 1869) Leoparreysia canefrii Vikhrev, Bolotov & Aksenova in Bolotov et al., 2017 Leoparreysia olivacea (Prashad, 1930) Leoparreysia perconvexa (Preston, 1912) Leoparreysia subcircularis (Brandt, 1974) Leoparreysia tavoyensis (Gould, 1843) Leoparreysia vulcanus (Hanley, 1876) Leoparreysia whitteni Bolotov, Konopleva, Vikhrev, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2019 Lepeta alba (Dall, 1869) Lepeta caeca (Muller, 1776) Lepeta caecoides Carpenter, 1865 Lepeta concentrica Middendorff, 1851 Lepetella laterocompressa (Rayneval and Ponzi, 1854) Lepetella tubicola Verrill, 1880 Lepidochitona aleutica (Dall, 1879) Lepidochitona beanii (Carpenter, 1864) Lepidochitona berryana Eernisse, 1986 Lepidochitona caverna Eernisse, 1986 Lepidochitona cinerea (Linnaeus, 1767) Lepidochitona dentiens (Gould, 1846) Lepidochitona fernaldi Eernisse, 1986 Lepidochitona flectens (Carpenter, 1864) Lepidochitona gothica (Carpenter, 1864) Lepidochitona hartwegii (Carpenter, 1855) Lepidochitona keepiana S. S. Berry, 1948 Lepidochitona liozonis (Dall and Simpson, 1901) Lepidochitona lowei (Pilsbry, 1918) Lepidochitona semilirata (S. S. Berry, 1927) Lepidochitona sharpeii Lepidochitona thamnopora (S. S. Berry, 1911) Lepidochitona thomasi (Pilsbry, 1898) Lepidodesma aligera (Heude, 1877) Lepidodesma languilati (Heude, 1874) Lepidopleurus asellus Lepidopleurus cajetanus (Poli, 1791) Lepidopleurus cancellatus Lepidopleurus pergranatus Lepidoteuthis grimaldii Joubin, 1895 Lepidozona abyssicola (A. G. Smith and Cowan, 1966) Lepidozona allyni (Ferreira, 1977) Lepidozona beringiana Clark, 2000 Lepidozona cooperi (Dall, 1879) Lepidozona ima Sirenko, 1975 Lepidozona interstincta (Gould, 1846) Lepidozona mertensii (Middendorff, 1847) Lepidozona pectinulata (Carpenter, 1893) Lepidozona regularis (Carpenter, 1855) Lepidozona retiporosa (Carpenter, 1864) Lepidozona scabricostata (Carpenter, 1864) Lepidozona serrata (Carpenter, 1864) Lepidozona sinudentata (Carpenter, 1892) Lepidozona trifida (Carpenter, 1864) Lepidozona willetti (S. S. Berry, 1917) Leporimetis intastriata (Say, 1827) Leporimetis obesa (Deshayes, 1855) Leptadrillia cookei (E. A. Smith, 1888) Leptaxinus incrassatus (Jeffreys, 1876) Leptaxinus minutus A. E. Verrill and Bush, 1898 Leptochiton alveolus (M. Sars in Lovén, 1846) Leptochiton arcticus (G. O. Sars, 1878) Leptochiton asellus (Gmelin, 1791) Leptochiton belknapi Dall, 1878 Leptochiton cancellatus Sowerby, 1840 Leptochiton dentiens Leptochiton gascognensis Kaas and Belle, 1985 Leptochiton internexus Leptochiton leloupi Kaas, 1979 Leptochiton nexus Carpenter, 1864 Leptochiton oldroydi Leptochiton rarinota (Jeffreys, 1882) Leptochiton rugatus (Pilsbry, 1892) Leptochiton sarsi Kaas, 1981 Leptochiton scabridus (Jeffreys, 1880) Leptochiton tenuis Kaas, 1979 Leptogyra alaskana Bartsch, 1910 Leptogyra eritmeta Bush, 1897 Leptogyra inconspicua Bush, 1897 Leptogyra verrilli Bush, 1897 Lepton lacerum (Jeffreys, 1872) Lepton lepidum Say, 1826 Lepton meroeum Carpenter, 1864 Lepton nitidum Lepton squamosum (Montagu, 1803) Leptopecten bavayi (Dautzenberg, 1900) Leptopecten camerella (S. S. Berry, 1968) Leptopecten latiauratus (Conrad, 1837) Leptopecten tumbezensis (Orbigny, 1846) Leptopecten velero (Hertlein, 1935) Leptothyra candida Leptothyra rubricincta Leptothyra sandwicensis Linnaeus, 1758 Leptothyra verruca Leptoxis ampla (Anthony, 1855) Leptoxis arkansensis (Hinkley, 1915) Leptoxis carinata (Bruguiere, 1792) Leptoxis clipeata (H. H. Smith in Goodrich, 1922) Leptoxis compacta (Anthony, 1854) Leptoxis coosaensis (Lea, 1861) Leptoxis dilatata (Conrad, 1835) Leptoxis foremani (Lea, 1843) Leptoxis formosa (Lea, 1860) Leptoxis ligata (Anthony, 1860) Leptoxis lirata (H. H. Smith in Goodrich, 1922) Leptoxis minor (Hinkley, 1912) Leptoxis occultata (H. H. Smith in Goodrich, 1922) Leptoxis picta (Conrad, 1834) Leptoxis plicata (Conrad, 1834) Leptoxis praerosa (Say, 1821) Leptoxis showalterii (Lea, 1860) Leptoxis torrefacta (H. H. Smith in Goodrich, 1922) Leptoxis trilineata (Say, 1829) Leptoxis umbilicata (Wetherby, 1876) Leptoxis virgata (Lea, 1841) Leptoxis vittata (Lea, 1860) Lepyrium showalteri (Lea, 1861) Leuconopsis novimundi (Pilsbry and McGinty, 1949) Leucophytia bidentata Leucosyrinx circinata Leucosyrinx crebricostata Leucosyrinx kincaidi Dall, 1919 Leucosyrinx verrilli (Dall, 1881) Leucozonia jacarusoi Petuch, 1987 Leucozonia nassa (Gmelin, 1791) Leucozonia ocellata (Gmelin, 1791) Leurolepas roseola J. H. McLean, 1970 Lienardia apiculata Lienardia balteata Lienardia crassicostata Lienardia fenestrata Lienardia lutea Lienardia mighelsi Ligumia recta (Lamarck, 1819) Liguriella pardus (Berry, 1916) Liguriella podophthalma Issel, 1908 Liguus fasciatus (Muller, 1774) Lima attenuata (Dall, 1916) Lima excavata (Fabricius, 1779) Lima floridana Olsson and Harbison, 1953 Lima hians (Gmelin, 1791) Lima hyperborea Jensen, 1909 Lima lima (Linnaeus, 1758) Lima locklini McGinty, 1955 Lima loscombi Lima pellucida C. B. Adams, 1846 Lima sabauriculata (Montagu, 1808) Lima scabra (Born, 1778) Lima subovata (Jeffreys, 1879) Lima tenera Sowerby, 1843 Limacia clavigera Limacina bulimoides (d'Orbigny, 1836) Limacina helicina (Phipps, 1774) Limacina helicoides Jeffreys, 1877 Limacina inflata (d'Orbigny, 1836) Limacina lesueurii (d'Orbigny, 1836) Limacina retroversa (Fleming, 1823) Limacina trochiformis (d'Orbigny, 1836) Limapontia capitata (O. F. Mueller, 1774) Limapontia depressa Alder and Hancock, 1862 Limapontia nigra Muller, 1773 Limapontia senestra (Quatrefages, 1844) Limapontia zonata (Girard, 1852) Limaria hemphilli (Hertlein and Strong, 1946) Limaria hians (Gmelin, 1791) Limaria loscombi (G. B. Sowerby, I, 1823) Limaria pellucida (C. B. Adams, 1846) Limatula attenuata Dall, 1916 Limatula confusa (E. A. Smith, 1885) Limatula gwyni (Sykes, 1903) Limatula hendersoni Olsson and McGinty, 1958 Limatula hyalina A. E. Verrill and Bush, 1898 Limatula hyperborea A. S. Jensen, 1909 Limatula japonica A. Adams, 1864 Limatula regularis A. E. Verrill and Bush, 1898 Limatula saturna Bernard, 1978 Limatula setifera Dall, 1886 Limatula similaris (Dall, 1908) Limatula subauriculata (Montagu, 1808) Limatula subovata (Jeffreys, 1876) Limatula sulcata (Brown, 1827) Limatula vancouverensis Bernard, 1978 Limax flavus Linnaeus, 1758 Limax marginatus Muller, 1774 Limax maximus Linnaeus, 1758 Limax nyctelius Bourguignat, 1861 Limax valentianus Férussac, 1823 Limea bronniana Dall, 1886 Limea sarsii (Loven, 1846) Limea subovata (Jeffreys, 1876) Limifossor fratula Heath, 1911 Limifossor talpoideus Heath, 1911 Limopsis affinis Verrill, 1885 Limopsis akutanica Dall, 1916 Limopsis antillensis Dall, 1881 Limopsis aurita (Brocchi, 1814) Limopsis cristata Jeffreys, 1876 Limopsis diegensis Dall, 1908 Limopsis minuta Philippi, 1836 Limopsis onchodes Dall, 1927 Limopsis panamensis Dall, 1902 Limopsis pelagica E. A. Smith, 1885 Limopsis plana Verrill, 1882 Limopsis radialis Dall, 1927 Limopsis skenea Dall, 1916 Limopsis sulcata A. E. Verrill and Bush, 1898 Limopsis surinamensis Limopsis tenella Jeffreys, 1876 Limopsis waikikia Linatella caudata (Gmelin, 1791) Lindapecten exasperatus (G. B. Sowerby II, 1842) Lindapecten lindae Petuch, 1995 Lindapecten muscosus (W. Wood, 1828) Linga amiantus (Dall, 1886) Linga cancellaris (Philippi, 1846) Linga columbella Lamarck, 1819 Linga excavata (Carpenter, 1857) Linga leucocyma Dall, 1886 Linga leucocymoides (Lowe, 1935) Linga pensylvanica (Linnaeus, 1758) Linga sombrerensis (Dall, 1886) Linga undatoides (Hertlein and Strong, 1945) Linisa tamaulipasensis (I. Lea, 1857) Linisa texasiana (Moricand, 1833) Lioberus castaneus (Say, 1822) Liocranchia gardineri Robson, 1921 Liocranchia reinhardti (Steenstrup, 1856) Liocranchia valdiviae Chun, 1910 Liocyma fluctuosum (Gould, 1841) Liomesus nassula Dall, 1901 Liomesus stimpsoni Dall, 1889 Lioplax cyclostomaformis (Lea, 1841) Lioplax pilsbryi Walker, 1905 Lioplax subcarinata (Say, 1817) Lioplax sulculosa (Menke, 1827) Liostomia eburnea (Stimpson, 1851) Liotia adnirabilis E. A. Smith, 1890 Liotia cancellata (Gray, 1828) Liotia fenestrata Carpenter, 1864 Liotia lurida Dall, 1913 Liotia microgrammata Dall, 1927 Lirabuccinum dirum (Reeve, 1846) Lirobarleeia kelseyi (Dall and Bartsch, 1902) Lirobittium armillatum (Carpenter, 1864) Lirobittium attenuatum (Carpenter, 1864) Lirobittium fetellum (Bartsch, 1911) Lirobittium interfossum (Carpenter, 1864) Lirobittium johnstonae Bartsch, 1911 Lirobittium larum (Bartsch, 1911) Lirobittium lomaense (Bartsch, 1911) Lirobittium munitum (Carpenter, 1864) Lirobittium oldroydae Bartsch, 1911 Lirobittium purpureum (Carpenter, 1864) Lirobittium quadrifilatum (Carpenter, 1864) Lirobittium rugatum (Carpenter, 1864) Lirobittium serra Bartsch, 1917 Lirophora clenchi (Pulley, 1952) Lirophora latilirata (Conrad, 1841) Lirularia acuticostata (Carpenter, 1864) Lirularia bicostata (J. H. McLean, 1964) Lirularia discors J. H. McLean, 1984 Lirularia lirulata (Carpenter, 1864) Lirularia optabilis (Carpenter, 1864) Lirularia parcipicta (Carpenter, 1864) Lirularia succincta (Carpenter, 1864) Lischkeia actinophora (Dall, 1890) Lischkeia calatha Lischkeia carlotta (Dall, 1902) Lischkeia ceratophora (Dall, 1896) Lischkeia cidaris (Carpenter, 1864) Lischkeia equatorialis (Dall, 1896) Lischkeia imperialis (Dall, 1881) Lischkeia ottoi (Philippi, 1844) Lissodrillia schroederi (Bartsch and Rehder, 1939) Lissodrillia simpsoni (Dall, 1887) Lithasia armigera (Say, 1821) Lithasia curta Lea, 1868 Lithasia duttoniana (Lea, 1841) Lithasia geniculata Haldeman, 1840 Lithasia hubrichti Clench, 1956 Lithasia jayana (Lea, 1841) Lithasia lima (Conrad, 1834) Lithasia obovata (Say, 1829) Lithasia salebrosa (Conrad, 1834) Lithasia spicula Minton, Savarese and Campbell, 2005 Lithasia verrucosa (Rafinesque, 1820) Lithophaga antillarum (d'Orbigny, 1842) Lithophaga aristata (Dillwyn, 1817) Lithophaga attenuata (Deshayes, 1836) Lithophaga bisulcata (d'Orbigny, 1842) Lithophaga nigra (d'Orbigny, 1842) Lithophaga plumula (Hanley, 1844) Lithophaga rogersi S. S. Berry, 1957 Lithopoma americanum (Gmelin, 1791) Lithopoma caelatum (Gmelin, 1791) Lithopoma gibberosa (Dillwyn, 1817) Lithopoma tectum (Lightfoot, 1786) Lithopoma tuber (Linnaeus, 1767) Litiopa melanostoma Rang, 1829 Littoraria angulifera (Lamarck, 1822) Littoraria irrorata (Say, 1822) Littoraria nebulosa (Lamarck, 1822) Littoraria tessellata (Philippi, 1847) Littoridina crosseana (Pilsbry, 1910) Littoridinops monroensis (Frauenfeld, 1863) Littoridinops palustris F. G. Thompson, 1968 Littoridinops tenuipes (Couper, 1844) Littorina albicarinata Mclean, 1970 Littorina aleutica Dall, 1872 Littorina angulifera (Lamarck, 1822) Littorina angustior (Morch, 1876) Littorina arcana Ellis, 1978 Littorina aspera Philippi, 1846 Littorina atkana Littorina fasciata Gray, 1839 Littorina flava King and Broderip, 1832 Littorina irrorata (Say, 1822) Littorina keenae Rosewater, 1978 Littorina lineolata D'Orbigny, 1840 Littorina littorea (Linnaeus, 1758) Littorina mariae Sacchi and Rastelli, 1966 Littorina meleagris (Potiez and Michaud, 1838) Littorina mespillum (Muhlfeld, 1824) Littorina modesta Philippi, 1846 Littorina nebulosa (Lamarck, 1822) Littorina neglecta Bean, 1844 Littorina neritoides Littorina nigrolineata J. E. Gray, 1839 Littorina obtusata (Linnaeus, 1758) Littorina pintado Littorina planaxis Philippi, 1847 Littorina plena Gould, 1849 Littorina pullata Carpenter, 1864 Littorina saxatilis (Olivi, 1792) Littorina scabra (Linnaeus, 1758) Littorina scutulata Gould, 1849 Littorina sitkana Philippi, 1846 Littorina squalida Broderip and G. B. Sowerby I, 1829 Littorina striata (Vallot, 1801) Littorina subrotundata (Carpenter, 1864) Littorina zebra Littorina ziczac (Gmelin, 1791) Lobiger souverbii P. Fischer, 1857 Lobosculum pustula (Ferussac, 1832) Lobosculum pustuloides (Bland, 1858) Loligo africana (Adam, 1950) Loligo bleekeri Keferstein, 1866 Loligo forbesii Steenstrup, 1856 Loligo gahi D'Orbigny, 1835 in 1834-1847 Loligo media (Linnaeus, 1758) Loligo ocula Cohen, 1976 Loligo opalescens Berry, 1911 Loligo pealeii Lesueur, 1821 Loligo pickfordi (Adam, 1954) Loligo plei Blainville, 1823 Loligo roperi Cohen, 1976 Loligo sanpaulensis Brakoniecki, 1984 Loligo subulata Lamarck, 1798 Loligo surinamensis Voss, 1974 Loligo vietnamensis Nguyen, 1994 Loligo vulgaris Lamarck, 1798 Loliolus affinis Steenstrup, 1856 Loliolus beka (Sasaki, 1929) Loliolus hardwickei (Gray, 1849) Loliolus japonica (Hoyle, 1885) Loliolus sumatrensis (D'Orbigny, 1835 in Férussac and D'Orbigny, 1834-1848) Loliolus uyii (Wakiya and Ishikawa, 1921) Lolliguncula argus Brakoniecki and Roper, 1985 Lolliguncula brevis (Blainville, 1823) Lolliguncula diomedeae (Hoyle, 1904) Lolliguncula mercatoris Adam, 1941 Lolliguncula panamensis Berry, 1911 Lomanotus genei Verany, 1846 Lomanotus marmoratus (Alder and Hancock, 1845) Lomanotus stauberi K. B. Clark and Goetzfried, 1976 Lomanotus vermiformis Eliot, 1908 Lopha cristagalli (Linnaeus) Lophodoris danielsseni (Friele and Hansen, 1876) Lora albrechti Krause, 1885 Lora alitakensis Lora althorpensis Lora amiata Lora arctica (A. Adams, 1855) Lora cancellata Lora chiachiana Lora elegans (Moller, 1842) Lora fiora Lora galgana Lora healyi Lora inflata Lora kyskana Lora laevigata (Dall, 1871) Lora lawrenciana Lora luetkeni Lora mitrata Lora morchi Leche, 1878 Lora murdochiana (Dall, 1885) Lora nobilis Lora nodulosa (Krause, 1885) Lora novaiasemliensis (Leche, 1878) Lora pavlova Lora quadra Lora rassina Lora reticulata Lora rugulata Lora scalaris Lora simplex (Middendorff, 1849) Lora solida (Dall, 1887) Lora tenuissima Lora turricula Lora woodiana (Moller, 1842) Loripes lucinalis (Lamarck, 1818) Lortiella froggatti Iredale, 1934 Lortiella opertanea Ponder & Bayer, 2004 Lortiella rugata (Sowerby, 1868) Lottia alveus (Conrad, 1831) Lottia asmi (Middendorff, 1847) Lottia borealis (Lindberg, 1982) Lottia conus (Test, 1945) Lottia digitalis (Rathke, 1833) Lottia gigantea G. B. Sowerby I, 1834 Lottia instabilis (Gould, 1846) Lottia jamaicensis (Gmelin, 1791) Lottia leucopleura (Gmelin, 1791) Lottia limatula (Carpenter, 1864) Lottia ochracea (Dall, 1871) Lottia painei Lindberg, 1987 Lottia pelta (Rathke, 1833) Lottia scabra (Gould, 1846) Lottia strigatella (Carpenter, 1864) Lottia triangularis (Carpenter, 1864) Lucapina aegis (Reeve, 1850) Lucapina eolis Perez Farfante, 1945 Lucapina philippiana (Finlay, 1930) Lucapina sowerbii (G. B. Sowerby II, 1835) Lucapina suffusa (Reeve, 1850) Lucapinella aequalis (Sowerby, 1835) Lucapinella callomarginata (Dall, 1871) Lucapinella delicata Usticke, 1969 Lucapinella eleanorae J. H. McLean, 1967 Lucapinella henseli (Von Martens, 1900) Lucapinella limatula (Reeve, 1850) Lucapinella milleri S. S. Berry, 1959 Lucidella tantilla Pilsbry, 1902 Lucina amianta (Dall, 1901) Lucina bermudensis Dall, 1901 Lucina excavata Lucina fenestrata Hinds, 1845 Lucina floridana Conrad, 1833 Lucina keenae Chavan, 1971 Lucina leucocyma Dall, 1886 Lucina muricata (Sprengler, 1798) Lucina nassula (Conrad, 1846) Lucina nuttalli (Conrad, 1791) Lucina pectinata (Gmelin, 1791) Lucina pensylvanica (Linnaeus, 1758) Lucina radians (Conrad, 1841) Lucina sombrerensis Dall, 1886 Lucina trisulcata Conrad, 1841 Lucinella divaricata (Linnaeus, 1758) Lucinisca muricata (Spengler, 1798) Lucinisca nassula (Conrad, 1846) Lucinisca nuttalli (Conrad, 1837) Lucinoma aequizonatum (Stearns, 1890) Lucinoma annulatum (Reeve, 1850) Lucinoma atlantis R. A. Mclean, 1936 Lucinoma blakeanum (Bush, 1893) Lucinoma borealis Lucinoma filosa (Stimpson, 1851) Lucinoma filosum (Stimpson, 1851) Lucinoma heroica (Dall, 1901) Lunatia fringilla (Dall, 1881) Lunatia laevicula (Verrill, 1880) Lunatia politiana (Dall, 1919) Lusitanops cingulata Bouchet and Waren, 1980 Lusitanops expansa (G. O. Sars, 1878) Lusitanops hyaloides (Dautzenberg, 1925) Lusitanops sigmoidea Bouchet and Waren, 1980 Lussivolutopsius filosus (Dall, 1919) Lutraria alderi Lutraria angustior Philippi, 1844 Lutraria lutraria (Linnaeus, 1758) Lutraria magna Luzonia walleri (Bernard, 1989) Lycoteuthis lorigera (Steenstrup, 1875) Lycoteuthis springeri (Voss, 1956) Lymnaea atkaensis Dall, 1884 Lymnaea palustris (O. F. Müller, 1774) Lymnaea producta (Mighels, 1845) Lymnaea rubella Lea, 1841 Lymnaea stagnalis (Linnaeus, 1758) Lyogyrus bakerianus (Pilsbry, 1917) Lyogyrus browni (Carpenter, 1872) Lyogyrus granum (Say, 1822) Lyogyrus latus F. G. Thompson and Hershler, 1991 Lyogyrus pilsbryi (Walker, 1906) Lyogyrus pupoideus (Gould, 1841) Lyogyrus retromargo (F. G. Thompson, 1968) Lyogyrus walkeri (Pilsbry, 1898) Lyonsia arenosa (Moller, 1842) Lyonsia argentea Jeffreys, 1881 Lyonsia bracteata (Gould, 1850) Lyonsia bulla Dall, 1881 Lyonsia californica Conrad, 1837 Lyonsia floridana Conrad, 1849 Lyonsia formosa Jeffreys, 1881 Lyonsia gouldii Dall, 1915 Lyonsia granulifera A. E. Verrill and Bush, 1898 Lyonsia hyalina Conrad, 1831 Lyonsia lucasana Bartsch and Rehder, 1939 Lyonsia magnifica Dall, 1913 Lyonsia norvegica (Gmelin, 1791) Lyonsia norwegica (Gmelin, 1791) Lyonsia pugetensis Dall, 1913 Lyonsia striata (Montagu, 1815) Lyonsiella abyssicola (G. Sars, 1872) Lyonsiella alaskana Dall, 1895 Lyonsiella cordata Verrill and Bush, 1898 Lyonsiella fragilis Lyonsiella gemma Verrill, 1880 Lyonsiella quaylei Bernard, 1969 Lyonsiella subquadrata (Jeffreys, 1881) Lyonsiella uschakovi Gorbunov, 1946 Lyrodus bipartitus (Jeffreys, 1860) Lyrodus floridanus (Bartsch, 1922) Lyrodus pedicellatus (de Quatrefages, 1849) Lyrodus takanoshimensis (Roch, 1929) Lyropecten kallinubilosus (Bayer, 1943) Macoma acolasta Dall, 1921 Macoma balthica (Linnaeus, 1758) Macoma baltica (Linnaeus, 1758) Macoma brevifrons (Say, 1834) Macoma brota Dall, 1916 Macoma calcarea (Gmelin, 1791) Macoma carlottensis Whiteaves, 1880 Macoma cerina C. B. Adams, 1845 Macoma constricta (Bruguiere, 1792) Macoma crassula (Deshayes, 1855) Macoma dexioptera Baxter, 1977 Macoma elimata Dunnill and Coan, 1968 Macoma expansa Carpenter, 1864 Macoma extenuata Dall, 1900 Macoma inconspicua Macoma indentata Carpenter, 1864 Macoma inflata Macoma inquinata (Deshayes, 1855) Macoma irus Macoma lama Bartsch, 1929 Macoma leptonoidea Dall, 1895 Macoma limula Dall, 1895 Macoma lipara Dall, 1916 Macoma loveni (A. S. Jensen, 1905) Macoma middendorffi Dall, 1884 Macoma mitchelli Dall, 1895 Macoma moesta (Deshayes, 1855) Macoma nasuta (Conrad, 1837) Macoma obliqua (J. Sowerby, 1817) Macoma phenax Dall, 1900 Macoma pseudomera Dall and Simpson, 1901 Macoma pulleyi Boyer, 1969 Macoma secta (Conrad, 1837) Macoma subrosea Macoma tageliformis Dall, 1900 Macoma tenta (Say, 1834) Macoma torelli (A. S. Jensen, 1905) Macoma yoldiformis Carpenter, 1864 Macrarene cookeana (Dall, 1918) Macrarene farallonensis (A. G. Smith, 1952) Macrocallista maculata (Linnaeus, 1758) Macrocallista nimbosa (Lightfoot, 1786) Macrocypraea cervus (Linnaeus, 1771) Macrocypraea zebra (Linnaeus, 1758) Macromphalina adamsii (P. Fischer, 1857) Macromphalina californica Dall, 1903 Macromphalina floridana Moore, 1965 Macromphalina palmalitoris Pilsbry and McGinty, 1950 Macromphalina pierrot Gardner, 1948 Macron lividus (A. Adams, 1855) Macron mcleani Vermeij, 1998 Mactra corallina Mactra glauca Born, 1778 Mactra stultorum (Linnaeus, 1758) Mactrellona alata (Sprengler, 1802) Mactromeris catilliformis (Conrad, 1867) Mactromeris hemphillii (Dall, 1894) Mactromeris polynyma (Stimpson, 1860) Mactrotoma californica (Conrad, 1837) Mactrotoma fragilis (Gmelin, 1791) Mactrotoma nasuta (Gould, 1851) Madrella aurantica Vayssiere, 1903 Magadis eumerintha Melville and Standen, 1899 Magnipelta mycophaga Pilsbry, 1953 Malanochlamys diomedia (Bergh, 1894) Malletia abyssopolaris A. H. Clarke, 1960 Malletia abyssorum Verrill and Bush, 1898 Malletia cuneata (Jeffreys, 1876) Malletia dilatata (Philippi, 1844) Malletia faba Dall, 1897 Malletia johnsoni Clark, 1961 Malletia obtusa (G. O. Sars, 1878) Malletia pacifica Dall, 1897 Malletia polita Verrill and Bush, 1898 Malletia truncata Malleus candeanus (d'Orbigny, 1842) Malluvium benthophilum (Dall, 1889) Mancikellia pumila (S. V. Wood, 1850) Mangelia acloneta (Dall, 1889) Mangelia acrocarinata Dall, 1927 Mangelia aculea (Dall, 1919) Mangelia alcippe (Dall, 1918) Mangelia aleutica Dall, 1871 Mangelia althorpi Dall, 1919 Mangelia amatula (Dall, 1919) Mangelia areia Dall, 1927 Mangelia astricta Reeve, 1846 Mangelia atonia (Dall, 1881) Mangelia attenuata Mangelia bandella (Dall, 1881) Mangelia bartletti (Dall, 1889) Mangelia biconica C. B. Adams, 1850 Mangelia brachystoma (Philippi, 1844) Mangelia branneri Arnold, 1903 Mangelia carlottae Dall, 1919 Mangelia cerina Mangelia ceroplasta Bush, 1885 Mangelia cesta Dall, 1919 Mangelia cetolaca Dall, 1908 Mangelia chasmata Dall, 1927 Mangelia christina Dall, 1927 Mangelia coarctata (Forbes, 1840) Mangelia constricta (Gabb, 1865) Mangelia cratera Dall, 1927 Mangelia crossata Dall, 1927 Mangelia cryera Dall, 1927 Mangelia crystallina (Gabb, 1865) Mangelia dalli (Verrill, 1882) Mangelia densilineata (Dall, 1921) Mangelia elusiva (Dall, 1881) Mangelia eriopis Dall, 1919 Mangelia eriphyle Dall, 1919 Mangelia evadne Dall, 1919 Mangelia exsculpta (Watson, 1881) Mangelia granitica Dall, 1919 Mangelia hexagona Gabb, 1865 Mangelia hooveri Arnold, 1903 Mangelia ipara (Dall, 1881) Mangelia ischna Dall, 1927 Mangelia janira (Dall, 1919) Mangelia lastica Dall, 1927 Mangelia leuca Bush, 1893 Mangelia loraeformis Dall, 1927 Mangelia louisa (Dall, 1919) Mangelia macra Mangelia melantica Mangelia merita Hinds, 1843 Mangelia monocingulata Dall, 1889 Mangelia munivakensis Dall, 1919 Mangelia nebula Mangelia nuperrima (Tiberi, 1855) Mangelia oldroydi Arnold, 1903 Mangelia painei Arnold, 1903 Mangelia pelagica (Dall, 1881) Mangelia perattenuata Dall, 1905 Mangelia percompacta Dall, 1927 Mangelia philodice Dall, 1919 Mangelia plicosa Mangelia pomara (Dall, 1919) Mangelia pourtalesii (Dall, 1881) Mangelia powisiana (Dautzenberg, 1887) Mangelia quadrata (Reeve, 1845) Mangelia quadriseriata (Dall, 1919) Mangelia rhabdea Dall, 1927 Mangelia rugirima Dall, 1889 Mangelia rugulosa (Philippi, 1844) Mangelia sagena Dall, 1927 Mangelia scipio Dall, 1889 Mangelia sculpturata Dall, 1886 Mangelia sericifila Dall, 1927 Mangelia smithii (Forbes, 1840) Mangelia stellata (Morch, 1860) Mangelia striosa (C. B. Adams, 1852) Mangelia strongyla Dall, 1927 Mangelia subcircularis Dall, 1927 Mangelia subsida (Dall, 1881) Mangelia tachnodes Dall, 1927 Mangelia toreumata Dall, 1889 Mangelia variegata Mangelia verdensis (Dall, 1919) Mangelia victoriana (Dall, 1897) Manzonia aequisculpta (Keep, 1887) Manzonia almo (Bartsch, 1911) Manzonia cosmia (Bartsch, 1911) Manzonia purpurea (Dall, 1871) Margarites acuticostatus Carpenter, 1864 Margarites albolineatus (E. A. Smith, 1899) Margarites althorpensis Dall, 1919 Margarites argentatus (Gould, 1841) Margarites avensooki Margarites baxteri Margarites beringensis (E. A. Smith, 1899) Margarites bicostatus J. H. McLean, 1964 Margarites costalis (Gould, 1841) Margarites ecarinatus (Dall, 1919) Margarites euspirus Dall, 1881 Margarites frigidus Dall, 1919 Margarites fulgidus (Jeffreys, 1883) Margarites giganteus (Leche, 1878) Margarites groenlandicus (Gmelin, 1791) Margarites healyi Dall, 1919 Margarites helicinus (Phipps, 1774) Margarites hickmanae J. H. McLean, 1984 Margarites keepi A. G. Smith and M. Gordon, 1948 Margarites minutissimus Mighels, 1843 Margarites mionus Dall, 1927 Margarites multilineatus (DeKay, 1843) Margarites ochotensis (Philippi, 1846) Margarites olivaceus (T. Brown, 1827) Margarites optabilis Carpenter, 1864 Margarites pribiloffensis (Dall, 1919) Margarites pupillus (Gould, 1849) Margarites rhodia Dall, 1921 Margarites rudis Dall, 1919 Margarites salmoneus (Carpenter, 1864) Margarites scintillans Watson, 1879 Margarites simbla Dall, 1913 Margarites smithi Bartsch, 1927 Margarites sordidus (Hancock, 1846) Margarites striatus (Leach, 1819) Margarites succinctus Carpenter, 1864 Margarites umbilicalis Broderip and Sowerby, 1829 Margarites vahlii (Moller, 1842) Margarites vorticifer (Dall, 1873) Margaritifera dahurica (Middendorff, 1850) Margaritifera falcata (Gould, 1850) Margaritifera hembeli (Conrad, 1838) Margaritifera laevis (Haas, 1910) Margaritifera margaritifera (Linnaeus, 1758) Margaritifera marrianae R. I. Johnson, 1983 Margaritifera middendorffi (Rosén, 1926) Marginella denticulata Conrad, 1834 Marginella fusina Dall, 1881 Marginella labiata Kiener, 1841 Marginella perexilis Bavay, 1922 Marginella virginiana Conrad, 1868 Maricopella allynsmithi (Gregg and W. B. Miller, 1969) Marionia cucullata Marionia tedi Ev. Marcus, 1983 Marisa cornuarietis (Linnaeus, 1758) Marsenina ampla A. E. Verrill, 1880 Marsenina glabra (Couthouy, 1838) Marsenina globosa L. M. Perry, 1939 Marsenina prodita Loven, 1846 Marsenina rhombica (Dall, 1871) Marsenina stearnsii (Dall, 1871) Marseniopsis sharonae (Willett, 1939) Marshallora nigrocincta (C. B. Adams, 1839) Marstonia agarhecta F. G. Thompson, 1969 Marstonia angulobasis F. G. Thompson, 2005 Marstonia arga F. G. Thompson, 1977 Marstonia castor F. G. Thompson, 1977 Marstonia comalensis (Pilsbry and Ferriss, 1906) Marstonia gaddisorum F. G. Thompson, 2005 Marstonia halcyon F. G. Thompson, 1977 Marstonia hershleri (F. G. Thompson, 1995) Marstonia letsoni (Walker, 1901) Marstonia lustrica (Pilsbry, 1890) Marstonia ogmorhaphe F. G. Thompson, 1977 Marstonia olivacea (Pilsbry, 1895) Marstonia ozarkensis (Hinkley, 1915) Marstonia pachyta F. G. Thompson, 1977 Marstonia scalariformis (Wolf, 1870) Martensnaias rubicunda (Martens, 1900) Martesia cuneiformis (Say, 1822) Martesia fragilis A. E. Verrill and Bush, 1890 Martesia striata (Linnaeus, 1758) Martialia hyadesii Rochebrune and Mabille, 1889 Massya longicirrata (Massy, 1917) Mastigoteuthis agassizii Verrill, 1881 Mastigoteuthis atlantica Joubin, 1933 Mastigoteuthis dentata Hoyle, 1904 Mastigoteuthis flammea Chun, 1908 Mastigoteuthis glaukopsis Chun, 1908 Mastigoteuthis grimaldii (Joubin, 1895) Mastigoteuthis inermis Rancurel, 1972 Mastigoteuthis iselini MacDonald and Clench, 1934 Mastigoteuthis magna Joubin, 1913 Mastigoteuthis psychrophila Nesis, 1977 Mastigoteuthis pyrodes Young, 1972 Mastigoteuthis schmidti Degner, 1925 Mastigoteuthis talismani (Fischer and Joubin, 1907) Mathilda amaea Dall, 1927 Mathilda barbadensis Dall, 1889 Mathilda georgiana Dall, 1927 Mathilda globulifera Dall, 1927 Mathilda granifera Dall, 1927 Mathilda hendersoni Dall, 1927 Mathilda jacteosa Mathilda jeffreysii Dall, 1889 Mathilda quadricarinata (Brocchi, 1814) Mathilda rushii Dall, 1889 Mathilda scitula Dall, 1889 Mathilda yucatecana (Dall, 1881) Maxwellia gemma (G. B. Sowerby II, 1879) Maxwellia santarosana (Dall, 1905) Mazatlania cosentini (Philippi, 1836) Medionidus acutissimus (Lea, 1831) Medionidus conradicus (Lea, 1834) Medionidus parvulus (Lea, 1860) Medionidus penicillatus (Lea, 1857) Medionidus simpsonianus Walker, 1905 Medionidus walkeri (S. H. Wright, 1897) Megacrenella columbiana (Dall, 1897) Megacrenella grisea (Dall, 1907) Megaleledone senoi Taki, 1961 Megalocranchia abyssicola (Goodrich, 1896) Megalocranchia maxima Pfeffer, 1884 Megalocranchia oceanica (Voss, 1960) Megalomphalus adamsii (P. Fischer, 1857) Megalomphalus californicus (Dall, 1903) Megalomphalus floridanus (Moore, 1965) Megalomphalus palmalitoris (Pilsbry and McGinty, 1950) Megalomphalus pierrot (Gardner, 1948) Megalomphalus schmiederi J. H. McLean, 1996 Megalonaias nervosa (Rafinesque, 1820) Megalonaias nickliniana (Lea, 1834) Megapallifera mutabilis (Hubricht, 1951) Megapallifera ragsdalei (Webb, 1950) Megapallifera wetherbyi (W. G. Binney, 1874) Megastraea turbanica (Dall, 1910) Megastraea undosa (W. Wood, 1828) Megasurcula carpenteriana (Gabb, 1865) Megasurcula remondii (Gabb, 1866) Megasurcula stearnsiana (Raymond, 1904) Megatebennus bimaculatus (Dall, 1871) Megathura crenulata (G. B. Sowerby I, 1825) Megayoldia martyria (Dall, 1897) Megayoldia montereyensis (Dall, 1893) Megayoldia thraciaeformis (Storer, 1838) Megomphix californicus A. G. Smith, 1960 Megomphix hemphilli (W. G. Binney, 1879) Megomphix lutarius H. B. Baker, 1932 Meiocardia agassizii Dall, 1889 Meiomenia arenicola Salvini-Plawen, 1985 Meiomenia dalyelli (Koren and Danielssen, 1877) Meiomenia swedmarki M. P. Morse, 1979 Melampus bidentatus Say, 1822 Melampus bullaoides (Montagu, 1808) Melampus coffeus (Linnaeus, 1758) Melampus floridanus Pfeiffer, 1856 Melampus monile (Bruguiere, 1789) Melampus morrisoni Martins, 1996 Melampus olivaceus Carpenter, 1856 Melanella arcuata (C. B. Adams, 1850) Melanella bakeri Bartsch, 1917 Melanella berryi Bartsch, 1917 Melanella bilineata Alder, 1848 Melanella californica Bartsch, 1917 Melanella catalinensis Bartsch, 1917 Melanella columbiana Bartsch, 1917 Melanella comoxensis Bartsch, 1917 Melanella compacta (Carpenter, 1866) Melanella conoidea (Kurtz and Stimpson, 1851) Melanella delmontensis (A. G. Smith and M. Gordon, 1948) Melanella distorta (Vanatta, 1899) Melanella elongata Bucquoy, Dollfus and Dautzenberg, 1883 Melanella eulimoides (C. B. Adams, 1850) Melanella giba de Folin, 1867 Melanella gracilis (C. B. Adams, 1850) Melanella grippi Bartsch, 1917 Melanella intermedia (Cantraine, 1835) Melanella jamaicensis (C. B. Adams, 1845) Melanella lastra Bartsch, 1917 Melanella macra Bartsch, 1917 Melanella micans (Carpenter, 1865) Melanella micrans (Carpenter, 1864) Melanella montereyensis Bartsch, 1917 Melanella oldroydae Bartsch, 1917 Melanella orphanensis Clarke, 1974 Melanella peninsularis Bartsch, 1917 Melanella randolfi Vanatta, 1899 Melanella rutila (Carpenter, 1864) Melanella sarsi (Bush, 1909) Melanella tacomaensis Bartsch, 1917 Melanella thersites (Carpenter, 1864) Melanella titubans (S. S. Berry, 1956) Melaniella gracillima (L. Pfeiffer, 1839) Melanochlamys diomedea (Bergh, 1894) Melanoides admirabilis Melanoides tuberculatus (Muller, 1774) Melanoides turriculus (I. Lea, 1850) Melibe leonina (Gould, 1852) Melongena bicolor (Say, 1826) Melongena corona (Gmelin, 1791) Melongena sprucecreekensis Tucker, 1994 Mendicula ferruginosa (Forbes, 1844) Menestho albula (Fabricius, 1780) Menetus opercularis (Gould, 1847) Mercenaria campechiensis (Gmelin, 1791) Mercenaria mercenaria (Linnaeus, 1758) Merelina granulosa Merelina hewa Merelina kenneyi Merelina wanawana Meromenia hirondella Leloup, 1949 Mesodesma arctatum (Conrad, 1830) Mesodesma deauratum (Turton, 1822) Mesodon altivagus (Pilsbry, 1900) Mesodon andrewsae W. G. Binney, 1879 Mesodon clausus (Say, 1821) Mesodon elevatus (Say, 1821) Mesodon mitchellianus (I. Lea, 1839) Mesodon normalis (Pilsbry, 1900) Mesodon sanus (Clench and Archer, 1933) Mesodon thyroidus (Say, 1816) Mesodon trossulus Hubricht, 1966 Mesodon zaletus (A. Binney, 1837) Mesomphix andrewsae (Pilsbry, 1895) Mesomphix anurus Hubricht, 1962 Mesomphix capnodes (W. G. Binney, 1857) Mesomphix cupreus (Rafinesque, 1831) Mesomphix friabilis (W. G. Binney, 1857) Mesomphix globosus (MacMillan, 1940) Mesomphix inornatus (Say, 1821) Mesomphix latior (Pilsbry, 1900) Mesomphix perfragilis (Wetherby, 1894) Mesomphix perlaevis (Pilsbry, 1900) Mesomphix pilsbryi (G. H. Clapp, 1904) Mesomphix rugeli (W. G. Binney, 1879) Mesomphix subplanus (A. Binney, 1842) Mesomphix vulgatus H. B. Baker, 1933 Mesonychoteuthis hamiltoni Robson, 1925 Metasepia pfefferi (Hoyle, 1885) Metasepia tullbergi (Appellöf, 1886) Metastoma goldfussi (Menke, 1847) Metastoma hamiltoni Dall, 1897 Metastoma mesolia Pilsbry, 1912 Metastoma pasonis Dall, 1895 Metastoma riograndense Pilsbry, 1946 Metastoma roemeri (Pfeiffer, 1848) Metaxia convexa (Carpenter, 1856) Metaxia metaxae (Delle Chiaje, 1829) Metaxia rugulosa (C. B. Adams, 1850) Metaxia taeniolata (Dall, 1889) Metula significans (Rehder, 1943) Metzgeria californica Dall, 1903 Metzgeria montereyana A. G. Smith and M. Gordon, 1948 Mexichromis porterae (Cockerell, 1901) Micranellum oregonense Micrarionta beatula Cockerell, 1929 Micrarionta facta (Newcomb, 1864) Micrarionta feralis (Hemphill, 1901) Micrarionta gabbii (Newcomb, 1864) Micrarionta opuntia Roth, 1975 Micrarionta rufocincta (Newcomb, 1864) Microceramus floridanus (Pilsbry, 1898) Microceramus pontificus (Gould, 1848) Microceramus texanus (Pilsbry, 1898) Microcondylaea bonellii (Férussac, 1827) Microdontia anodontaeformis (Tapparone Canefri, 1883) Microdrillia comatotropsis (Dale, 1881) Microeulima hemphillii (Dall, 1884) Microgaza rotella Dall, 1881 Microgloma turnerae Saunders and Allen, 1973 Microgloma yongei Saunders and Allen, 1973 Microglyphis brevicula (Dall, 1902) Microglyphis estuarina (Dall, 1908) Microhedyle glandulifera (Kowalevsky, 1901) Microhedyle milaschewitschii (Kowalevsky, 1901) Micromelo undatus (Bruguiere, 1792) Micromenetus brogniartianus (Lea, 1842) Micromenetus dilatatus (Gould, 1841) Micromenetus floridensis (F. C. Baker, 1945) Micromenetus sampsoni (Ancey, 1885) Micromenia fodiens (Schwabl, 1955) Micronaias arata (Lea, 1845) Micronaias fallaciosa (Simpson, 1914) Micronaias granadensis (Lea, 1868) Microphysula cookei (Pilsbry, 1922) Microphysula ingersolli (Bland, 1875) Microstelma vestale (Rehder, 1943) Microtralia occidentalis (Pfeiffer, 1854) Microvoluta blakeana (Dall, 1889) Microvoluta intermedia (Dall, 1889) Middendorffinaia mongolica (Middendorff, 1851) Miesea evelinae (Er. Marcus, 1957) Milax gagates (Draparnaud, 1801) Milda scitula A. Adams, 1886 Millerelix deltoidea (Simpson, 1889) Millerelix dorfeuilliana (I. Lea, 1838) Millerelix fatigiata (Say, 1829) Millerelix gracilis (Hubricht, 1961) Millerelix jacksoni (Bland, 1866) Millerelix lithica (Hubricht, 1961) Millerelix mooreana (W. G. Binney, 1858) Millerelix peregrina (Rehder, 1932) Millerelix plicata (Say, 1821) Millerelix simpsoni (Pilsbry and Ferriss, 1907) Millerelix troostiana (I. Lea, 1839) Milneria kelseyi Dall, 1916 Milneria minima (Dall, 1871) Miodontiscus prolongatus (Carpenter, 1864) Mirachelus clinocnemus Quinn, 1979 Mirachelus corbis (Dall, 1889) Miraclathurella herminea (Bartsch, 1934) Miralda havanensis (Pilsbry and Aguayo, 1933) Miralda paulbartschi Miralda scopulorum Mitra barbadensis (Gmelin, 1791) Mitra belcheri Hinds, 1844 Mitra brasiliensis Oliveira, 1869 Mitra catalinae Dall, 1919 Mitra crenata Broderip, 1836 Mitra dolorosa Dall, 1903) Mitra flammulata Mitra florida Gould, 1856 Mitra fultoni E. A. Smith, 1892 Mitra grammatula Dall, 1927 Mitra idae Melvill, 1893 Mitra larranagai Carcelles, 1947 Mitra nodulosa (Gmelin, 1791) Mitra pallida Nowell-Usticke, 1959 Mitra saldanha Matthews Anbd Rios, 1970 Mitra saltata Mitra semiferruginea Reeve, 1845 Mitra straminea A. Adams, 1853 Mitra swainsonii Broderip, 1836 Mitra tristis Broderip, 1836 Mitra zilpha Dall, 1927 Mitrella amiantis (Dall, 1919) Mitrella amphisella (Dall, 1881) Mitrella appressa (Dall, 1927) Mitrella argus D'Orbigny, 1842 Mitrella aurantiaca (Dall, 1871) Mitrella baccata (Gaskoin, 1852) Mitrella bella Mitrella callimorpha (Dall, 1919) Mitrella carinata (Hinds, 1844) Mitrella casciana (Dall, 1919) Mitrella caulerpae Keen, 1971 Mitrella clementensis (Bartsch, 1927) Mitrella crumena (Dall, 1924) Mitrella densilineata (Carpenter, 1864) Mitrella diaphana (A. E. Verrill, 1882) Mitrella dichroa (G. B. Sowerby I, 1844) Mitrella dicomata (Dall, 1889) Mitrella dissimilis Stimpson, 1851 Mitrella dorma Baker, Hanna, and Strong, 1938 Mitrella embusa (Dall, 1927) Mitrella enida (Dall, 1927) Mitrella euribia (Dall, 1927) Mitrella fusiformis D'Orbigny, 1842 Mitrella gausapata Gould, 1850 Mitrella georgiana (Dall, 1924) Mitrella gouldi Mitrella granti Lowe, 1935 Mitrella guttata Sowerby, 1832 Mitrella hypodra (Dall, 1916) Mitrella idalina (Duclor, 1840) Mitrella lunata (Say, 1826) Mitrella lutulenta (Dall, 1919) Mitrella margarita Mitrella multilineata (Dall, 1889) Mitrella nitens Mitrella nycteis (Duclos, 1846) Mitrella ocellata (Gmelin, 1791) Mitrella perlucida Dall, 1927 Mitrella permodesta (Dall, 1890) Mitrella profundi (Dall, 1889) Mitrella projecta (Dall, 1927) Mitrella pura (A. E. Verrill, 1882) Mitrella raveneli (Dall, 1889) Mitrella rorida Mitrella sagenata (Dall, 1924) Mitrella stemma (Dall, 1927) Mitrella tuberosa (Carpenter, 1864) Mitrella verrillii (Dall, 1881) Mitrella vidua (Dall, 1924) Mitrolumna biplicata (Dall, 1889) Mitromorpha carpenteri Gilbert, 1954 Mitromorpha gracilior Tryon, 1884 Modellnaia siamensis Brandt, 1974 Modiolula phaseolina (Philippi, 1844) Modiolus adriaticus (Lamarck, 1819) Modiolus americanus (Leach, 1815) Modiolus barbatus Modiolus capax (Conrad, 1837) Modiolus carpenteri Soot-Ryen, 1963 Modiolus demissus Modiolus eiseni Strong and Hertlein, 1937 Modiolus modiolus (Linnaeus, 1758) Modiolus neglectus Soot-Ryen, 1955 Modiolus phaseolinus Modiolus rectus (Conrad, 1837) Modiolus sacculifer (S. S. Berry, 1953) Modulus calusa Petuch, 1988 Modulus carchedonius (Lamarck, 1822) Modulus catenulatus (Philippi, 1849) Modulus cerodes (A. Adams, 1851) Modulus disculus Philippi, 1846 Modulus floridanus Conrad, 1869 Modulus kaicherae Petuch, 1987 Modulus lindae Petuch, 1987 Modulus modulus (Linnaeus, 1758) Modulus pacei Petuch, 1987 Moelleria costulata (Moller, 1842) Moelleria drusiana Dall, 1919 Moelleria quadrae Dall, 1897 Moelleriopsis abyssicola Bush, 1897 Moelleriopsis sincera (Dall, 1890) Mohavelix micrometalleus (S. S. Berry, 1930) Mohnia corbis (Dall, 1913) Mohnia danielsseni (Friele, 1879) Mohnia exquisita (Dall, 1913) Mohnia freilei (Dall, 1891) Mohnia hispidulus (Verrill, 1884) Mohnia mohni Friele, 1879 Mohnia parva (A. E. Verrill and S. Smith, 1882) Mohnia simplex (A. E. Verrill, 1884) Mohnia siphonoidea (Dall, 1913) Monacha cantiana (Montagu, 1803) Monadenia callipeplus S. S. Berry, 1940 Monadenia chaceana S. S. Berry, 1940 Monadenia churchi Hanna and A. G. Smith, 1933 Monadenia circumcarinata (Stearns, 1879) Monadenia cristulata S. S. Berry, 1940 Monadenia fidelis (J. E. Gray, 1834) Monadenia hillebrandi (Newcomb, 1864) Monadenia infumata (Gould, 1855) Monadenia marmarotis S. S. Berry, 1940 Monadenia mormonum (Pfeiffer, 1857) Monadenia rotifer S. S. Berry, 1940 Monadenia scottiana S. S. Berry, 1940 Monadenia setosa Talmadge, 1952 Monadenia troglodytes Hanna and A. G. Smith, 1933 Monadenia tuolumneana S. S. Berry, 1955 Monadenia yosemitensis (Lowe, 1916) Moncetia anceyi Bourguignat, 1886 Monia patelliformis Monia squama Monocondylaea corrientesensis (d'Orbigny, 1835) Monocondylaea costulata (Moricand, 1858) Monocondylaea franciscana (Moricand, 1837) Monocondylaea guarayana (d'Orbigny, 1835) Monocondylaea jaspidea (Hupé, 1857) Monocondylaea minuana (d'Orbigny, 1835) Monocondylaea paraguayana (d'Orbigny, 1835) Monocondylaea parchappii (d'Orbigny, 1835) Monodonta lineata Monostiolum tesselatum (Reeve, 1844) Montacuta dawsoni Jeffreys, 1864 Montacuta donacina (S. V. Wood, 1802) Montacuta elevata Montacuta ferruginosa Montacuta limpida Dall, 1899 Montacuta minuscula Dall, 1899 Montacuta percompressa Dall, 1899 Montacuta planata Montacuta substriata (Montagu, 1808) Montacuta voringi Friele, 1877 Mopalia acuta (Carpenter, 1855) Mopalia ciliata (G. B. Sowerby II, 1840) Mopalia cirrata S. S. Berry, 1919 Mopalia egretta S. S. Berry, 1919 Mopalia ferreirai R. N. Clark, 1991 Mopalia hindsii (Reeve, 1847) Mopalia imporcata Carpenter, 1864 Mopalia laevior Pilsbry, 1918 Mopalia lignosa (Gould, 1846) Mopalia lionotus Pilsbry, 1918 Mopalia lowei Pilsbry, 1918 Mopalia muscosa (Gould, 1846) Mopalia phorminx S. S. Berry, 1919 Mopalia porifera Pilsbry, 1893 Mopalia recurvans Barnawell, 1960 Mopalia sinuata Carpenter, 1864 Mopalia spectabilis G. I. M. Cowan and I. M. Cowan, 1977 Mopalia swanii Carpenter, 1864 Moroteuthis ingens (Smith, 1881) Moroteuthis knipovitchi Filippova, 1972 Moroteuthis lonnbergii Ishikawa and Wakiya, 1914 Moroteuthis robsoni Adam, 1962 Moroteuthis robusta (Verrill, 1876) Morrisonella pacifica (Dall, 1908) Morula didyma (Schwengel, 1943) Morum dennisoni (Reeve, 1842) Morum lamarcki (Deshayes, 1844) Morum oniscus (Linnaeus, 1767) Mourgona germaineae Er. Marcus and Ev. Marcus, 1970 Mucronalia nidorum Mulinia cleryana (d'Orbigny, 1846) Mulinia lateralis (Say, 1822) Murchisonella tampaensis (Bartsch, 1947) Murex beauii Fischer and Bernardi, 1857 Murex cellulosa Conrad, 1846 Murex ciboney Clench and Farfante, 1945 Murex formosus Sowerby, 1841 Murex fulvescens Sowerby, 1834 Murex glyptus (M. Smith, 1938) Murex hidalgoi Crosse, 1869 Murex leviculus (Dall, 1889) Murex recurvirostris Broderip, 1833 Murexiella glypta (M. Smith, 1938) Murexiella hidalgoi (Crosse, 1869) Murexiella kalafuti Petuch, 1987 Murexiella levicula (Dall, 1889) Murexiella macgintyi (M. Smith, 1938) Murexiella taylorae Petuch, 1987 Murexsul emipowlusi (Abbott, 1954) Muricantharus harasewychi Petuch, 1987 Muricopsis caribbaea (Bartsch and Rehder, 1939) Muricopsis oxytata (M. Smith, 1938) Musculista senhousia (Benson, 1842) Musculium lacustre (Muller, 1774) Musculium partumeium (Say, 1822) Musculium securis (Prime, 1852) Musculium transversum (Say, 1829) Musculus corrugatus (Stimpson, 1851) Musculus costulatus Musculus cultellus (Deshayer, 1839) Musculus discors (Linnaeus, 1767) Musculus glacialis (Leche, 1883) Musculus impressus (Dall, 1907) Musculus japonica Musculus lacustre Muller Musculus lateralis (Say, 1822) Musculus marmoratus (Forbes, 1838) Musculus niger (J. E. Gray, 1824) Musculus olivaceus Dall, 1916 Musculus partumetum Musculus phenax (Dall, 1915) Musculus pygmaeus Glynn, 1964 Musculus securis Prime Musculus seminudus (Dall, 1897) Musculus senhousei (Benson, 1842) Musculus taylori (Dall, 1897) Musculus vernicosus (Middendorff, 1849) Mutela alata (Lea, 1864) Mutela alluaudi Germain, 1909 Mutela bourguignati Bourguignat, 1885 Mutela dubia (Gmelin, 1791) Mutela franci Daget, 1964 Mutela hargeri E.A. Smith, 1908 Mutela joubini (Germain, 1904) Mutela langi Pilsbry & Bequaert, 1927 Mutela legumen (Rochebrune, 1886) Mutela mabilli (Rochebrune, 1886) Mutela rostrata (Rang, 1835) Mutela soleniformis Bourguignat, 1885 Mutela wistarmorrisi Graf & Cummings, 2006 Mutela zambesiensis Mandahl-Barth, 1988 Mya arenaria Linnaeus, 1758 Mya baxteri Coan and Scott, 1997 Mya elegans (Eichwald, 1871) Mya japonica Jay, 1856 Mya priapus (Tilesius, 1822) Mya profundior Grant and Gale, 1931 Mya pseudoarenaria Schlesch, 1931 Mya truncata Linnaeus, 1758 Mya uzenensis Nomura and Zimbo, 1937 Mycetopoda legumen (Martens, 1888) Mycetopoda pittieri Marshall, 1927 Mycetopoda siliquosa (Spix & Wagner, 1827) Mycetopoda soleniformis d'Orbigny, 1835 Mycetopodella falcata (Higgins, 1868) Myonera garretti Myonera lamellifera (Dall, 1881) Myonera limatula (Dall, 1881) Myonera paucistriata Dall, 1886 Myonera ruginosa (Jeffereys, 1881) Myonera tillamookensis Dall, 1916 Myosotella myosotis (Draparnaud, 1801) Myotophallus rooseveltianus (S. S. Berry, 1917) Myrtea compressa (Dall, 1881) Myrtea lens (A. E. Verrill and S. Smith, 1880) Myrtea pristiphora Dall and Simpson, 1901 Myrtea sagrinata (Dall, 1886) Myrtea spinifera Montagu, 1803 Mysella aleutica Dall, 1899 Mysella beringensis (Dall, 1916) Mysella bidentata Mysella casta (A. E. Verrill and Bush, 1898) Mysella compressa (Dall, 1913) Mysella dawsoni (Jeffreys, 1864) Mysella golischi (Dall, 1916) Mysella grebnitzkii (Dall, 1916) Mysella grippi (Dall, 1912) Mysella moelleri (Morch, 1875) Mysella ovata (Jeffreys, 1881) Mysella pedroana Dall, 1899 Mysella planata (Krause, 1885) Mysella planulata (Stimpson, 1851) Mysella sovialiki Mysella striatula A. E. Verrill and Bush, 1898 Mysella triquetra (A. E. Verrill and Bush, 1898) Mysella tumida (Carpenter, 1864) Mysella tumidula (Jeffreys, 1866) Mysia undata (Pennant, 1777) Mysouffa cumingii (A. Adams, 1855) Mytilimeria nuttalli Conrad, 1837 Mytilopsis domininguensis Recluz, 1852 Mytilopsis leucophaeata (Conrad, 1831) Mytilopsis sallei (Recluz, 1849) Mytilus californianus Conrad, 1837 Mytilus chilensis Hupé, 1854 Mytilus edulis Linnaeus, 1758 Mytilus galloprovincialis Lamarck, 1819 Mytilus trossulus Gould, 1850 Naesiotus christenseni (W. B. Miller and Reeder, 1984) Naesiotus nigromontanus (Dall, 1897) Namkongnaia inkhavilayi Jeratthitikul, Sutcharit, Ngor & Prasankok, 2021 Namkongnaia lemeslei (Morelet, 1875) Nannodiella melanitica (Bush, 1885) Nannodiella oxia (Bush, 1885) Nannodiella vespuciana (d'Orbigny, 1842) Nannoteretispira habei Nannoteretispira japonica Habe, 1961 Nannoteretispira kelseyi (Bartsch, 1911) Nanobalcis worsfoldi Waren, 1990 Nassaria spinigera (Hayashi and Habe, 1965) Nassarina bushiae (Dall, 1889) Nassarina glypta (Bush, 1885) Nassarina grayi Dall, 1889 Nassarina metabrunnea Dall and Simpson, 1901 Nassarina minor (C. B. Adams, 1845) Nassarina monilifera (Sowerby, 1844) Nassarina penicillata (Carpenter, 1864) Nassarius acutus (Say, 1822) Nassarius albus (Say, 1826) Nassarius angulicostis (Pilsbry and Lowe, 1932) Nassarius antillarum (d'Orbigny, 1842) Nassarius arcularius (Linnaeus, 1758) Nassarius catallus (Dall, 1908) Nassarius cerritensis (Arnold, 1903) Nassarius consensus (Ravenel, 1861) Nassarius crematus (Hinds, 1844) Nassarius cremmatus Nassarius delosi (Woodring, 1946) Nassarius fossatus (Gould, 1850) Nassarius fraterculus (Dunker, 1860) Nassarius gallegosi Strong and Hertlein, 1937 Nassarius guaymasensis (Pilsbry and Lowe, 1932) Nassarius hotessieri (d'Orbigny, 1845) Nassarius howardae Chace, 1958 Nassarius incrassatus (Stroem, 1768) Nassarius insculptus (Carpenter, 1864) Nassarius iodes (Dall, 1917) Nassarius limacinus (Dall, 1917) Nassarius luteostoma Broderip and Sowerby, 1829 Nassarius mendicus (Gould, 1850) Nassarius miser (Dall, 1908) Nassarius moestus (Hinds, 1844) Nassarius nanus Nassarius nigrolabra (Verrill, 1880) Nassarius obsoletus (Say, 1822) Nassarius olomea Kay, 1979 Nassarius onchodes (Dall, 1917) Nassarius pagodus (Reeve, 1844) Nassarius papillosus (Gould, 1850) Nassarius perpinguis (Hinds, 1844) Nassarius polygonatus (Lamarck, 1822) Nassarius pygmaeus Lamarck, 1822 Nassarius reticulatus (Linnaeus, 1758) Nassarius rhinetes S. S. Berry, 1953 Nassarius scissuratus (Dall, 1889) Nassarius shaskyi Mclean, 1970 Nassarius splendidulus (Dunker, 1846) Nassarius tiarula (Kiener, 1841) Nassarius trivittatus (Say, 1822) Nassarius versicolor (C. B. Adams, 1852) Nassarius vibex (Say, 1822) Natica alapapilionis Natica bougei Natica castrensis Dall, 1889 Natica floridana (Rehder, 1943) Natica gualteriana Récluz, 1844 Natica hilaris Natica livida Pfeiffer, 1840 Natica marochiensis (Gmelin, 1791) Natica perlineata Dall, 1889 Natica poliana Natica pusilla Say, 1822 Natica sagraiana D'Orbigny, 1842 Natica tedbayeri Rehder, 1986 Naticarius canrena (Linnaeus, 1758) Naticarius verae Rehder, 1947 Nausitora fusticula (Jeffreys, 1860) Nautilus belauensis Saunders, 1981 Nautilus macromphalus Sowerby, 1848 Nautilus pompilius Linnaeus, 1758 Nautilus repertus Iredale, 1944 Nautilus stenomphalus Sowerby, 1848 Navanax aenigmaticus (Bergh, 1893) Navanax inermis (J. G. Cooper, 1863) Navanax polyalphos (Gosliner and Williams, 1972) Neadmete modesta (Carpenter, 1864) Neaeromya chacei (Dall, 1916) Neaeromya compressa (Dall, 1899) Neaeromya floridana (Dall, 1899) Neaeromya myaciformis (Dall, 1916) Neaeromya rugifera (Carpenter, 1864) Neaeromya stearnsi (Dall, 1899) Nearctula rowellii (Newcomb, 1860) Nectoteuthis pourtalesi Verrill, 1883 Neilonela acinula (Dall, 1890) Neilonela excisa (Philippi, 1841) Neilonela pusio (Philippi, 1844) Neilonela quadrangularis (Dall, 1881) Nematolampas regalis Berry, 1913 Nematomenia arctica Thiele, 1913 Nematomenia banyulensis (Pruvot, 1890) Nematomenia flavens (Pruvot, 1890) Nematomenia incirrata Nematomenia ptyalosa Nematomenia tegulata Nematomenia triglandulata Nembrotha divae Marcus, 1958 Nembrotha eliora Marcus and Marcus, 1967 Nembrotha gratiosa Bergh, 1890 Nemocardium centifilosum (Carpenter, 1864) Nemocardium peramabile (Dall, 1881) Nemocardium tinctum (Dall, 1881) Nemocardium transversum Rehder and Abbott, 1951 Neoberingius frielei (Dall, 1895) Neodrillia cydia Bartsch, 1943 Neohelix albolabris (Say, 1817) Neohelix alleni (Sampson, 1883) Neohelix dentifera (A. Binney, 1837) Neohelix divesta (Gould, 1848) Neohelix lioderma (Pilsbry, 1902) Neohelix major (A. Binney, 1837) Neohelix solemi Emberton, 1988 Neolepton obliquatum (Chaster, 1897) Neolepton sulcatulum (Jeffreys, 1859) Neomenia carinata Tullberg, 1875 Neomenia grandis Neomenia herwigi Neopilina galatheae Neoplanorbis carinatus Walker, 1908 Neoplanorbis smithi Walker, 1908 Neoplanorbis tantillus Pilsbry, 1906 Neoplanorbis umbilicatus Walker, 1908 Neopleurotomoides callembyron (Dautzenberg and Fischer, 1896) Neopycnodonte cochlear (Poli, 1795) Neorossia caroli (Joubin, 1902) Neorossia leptodons Reid, 1992 Neosimnia advena (Cate, 1978) Neosimnia aequalis (G. B. Sowerby II, 1832) Neosimnia avena (G. B. Sowerby II, 1832) Neosimnia barbarensis (Dall, 1892) Neosimnia bellamaris S. S. Berry, 1946 Neosimnia bijuri (Cate, 1976) Neosimnia loebbeckeana (Weinkauff, 1881) Neosimnia spelta Linnaeus, 1758 Neoteuthis thielei Naef, 1921 Neotrapezium liratum (Reeve, 1843) Nephritica haricotti (Frierson, 1927) Nephritica poeyana (Lea, 1857) Nephronaias aeruginosa (Morelet, 1849) Nephronaias aztecorum (Philippi, 1847) Nephronaias calamitarum (Morelet, 1849) Nephronaias championi (Martens, 1900) Nephronaias copanensis (Martens, 1900) Nephronaias dysonii (Lea, 1859) Nephronaias goascoranensis (Lea, 1858) Nephronaias gundlachi (Dunker, 1858) Nephronaias hermanni (Haas, 1929) Nephronaias hjalmarsoni (Dunker, 1858) Nephronaias lempensis Marshall, 1926 Nephronaias macnielii (Lea, 1869) Nephronaias mellea (Lea, 1859) Nephronaias oregonensis (Lea, 1852) Nephronaias plicatula (Küster, 1856) Nephronaias ravistella (Morelet, 1849) Nephronaias rowellii (Lea, 1859) Nephronaias rugulosa (Küster, 1856) Nephronaias sajensis (Frierson, 1927) Nephronaias scamnata (Morelet, 1849) Nephronaias sphenorhyncha (Crosse & Fischer, 1893) Nephronaias tabascoensis (Küster, 1856) Nephronaias tempisquensis Pilsbry, 1920 Nephronaias yzabalensis (Crosse & Fischer, 1892) Nepotilla amoena (G. O. Sars, 1878) Neptunea amianta (Dall, 1890) Neptunea antiqua (Linnaeus, 1758) Neptunea beringiana (Middendorff, 1848) Neptunea brevicauda (Deshayes, 1832) Neptunea communis (Middendorff, 1848) Neptunea despecta (Linnaeus, 1758) Neptunea eulimata (Dall, 1907) Neptunea heros (J. E. Gray, 1850) Neptunea insularis (Dall, 1895) Neptunea ithia (Dall, 1891) Neptunea lyrata (Gmelin, 1791) Neptunea middendorffiana MacGinitie, 1959 Neptunea oncodes (Dall, 1907) Neptunea phoenicea (Dall, 1891) Neptunea pribiloffensis (Dall, 1919) Neptunea smirnia (Dall, 1919) Neptunea tabulata (Baird, 1863) Neptunea taphria (Dall, 1891) Neptunea varicifera (Dall, 1907) Neptunea ventricosa (Gmelin, 1791) Neptunea vinosa (Dall, 1919) Nerita fulgurans Gmelin, 1791 Nerita funiculata Menke, 1851 Nerita peloronta Linnaeus, 1758 Nerita scabricosta Lamarck, 1822 Nerita tessellata Gmelin, 1791 Nerita versicolor Gmelin, 1791 Neritina cariosa (Wood, 1828) Neritina clenchi Russell, 1940 Neritina granosa Sowerby, 1825 Neritina luteofasciatus (Miller, 1879) Neritina meleagris Lamarck, 1822 Neritina pulligera (Linnaeus, 1758) Neritina reclivata (Say, 1822) Neritina usnea (Roding, 1798) Neritina vespertina Sowerby, 1849 Neritina virginea (Linnaeus, 1758) Nesovitrea binneyana (E. S. Morse, 1864) Nesovitrea dalliana (Pilsbry and Simpson, 1889) Nesovitrea electrina (Gould, 1841) Nesovitrea suzannae Pratt, 1978 Nesta atlantica Farfante, 1947 Nesta candida (H. Adams,, 1879) Nesta galapagensis J. Mclean, 1970 Netastoma japonicum (Yokoyama, 1920) Netastoma rostratum (Valenciennes, 1846) Nettastomella darwini (Sowerby, 1849) Neverita duplicata (Say, 1822) Neverita politiana (Dall, 1919) Neverita reclusiana (Deshayes, 1839) Nierstrassia fragile Nipponolimopsis decussata (A. Adams, 1862) Nipponotrophon fabricii (Muller, 1842) Nipponotrophon lasius (Dall, 1919) Nipponotrophon scitulus (Dall, 1891) Niso aeglees Bush, 1885 Niso attilioi (C. M. Hertz and J. Hertz, 1982) Niso hendersoni Bartsch, 1953 Niso hipolitensis Bartsch, 1917 Niso lomana Bartsch, 1917 Niso tricolor Dall, 1889 Nitia acuminata (H. Adams, 1866) Nitia chefneuxi (Neuville & Anthony, 1906) Nitia monceti (Bourguignat, 1883) Nitia mutelaeformis (Germain, 1906) Nitia teretiuscula (Philippi, 1847) Nitidella carinata Hinds, 1844 Nitidella gausapata Gould, 1850 Nitidella gouldi (Carpenter, 1857) Nitidella laevigata (Linnaeus, 1758) Nitidella moleculina Duclos, 1840 Nitidella nitida (Lamarck, 1822) Nitidella parva Dunker, 1847 Nitidiscala berryi (Dall, 1907) Nitidiscala caamanoi (Dall and Bartsch, 1910) Nitidiscala californica (Dall, 1917) Nitidiscala catalinae (Dall, 1908) Nitidiscala catalinensis (Dall, 1917) Nitidiscala hindsii (Carpenter, 1856) Nitidiscala indianorum (Carpenter, 1864) Nitidiscala sawinae (Dall, 1903) Nitidiscala tincta (Carpenter, 1864) Niveotectura funiculata (Carpenter, 1864) Niveria antillarum (Schilder, 1922) Niveria candidula (Gaskoin, 1836) Niveria leucosphaera Schilder, 1931 Niveria nix (Schilder, 1922) Niveria pediculus (Linnaeus, 1758) Niveria quadripunctata (J. E. Gray, 1827) Niveria suffusa (J. E. Gray, 1827) Nodilittorina angustior (Morch, 1876) Nodilittorina dilatata (d'Orbigny, 1842) Nodilittorina meleagris (Potiez and Michaud, 1838) Nodilittorina mespillum (Megerle von Muhlfeld, 1824) Nodilittorina pyramidalis (Quoy and Gaimard, 1833) Nodilittorina riisei (Morch, 1876) Nodilittorina tuberculata (Menke, 1828) Nodilittorina ziczac (Gmelin, 1791) Nodipecten nodosus (Linnaeus, 1758) Nodipecten subnodosus (G. B. Sowerby I, 1835) Nodiscala spongiosa (Carpenter, 1864) Nodotoma impressa (Morch, 1869) Nodularia breviconcha Lee, Kim, Bogan & Kondo in Lopes-Lima et al., 2020 Nodularia diespiter (Mabille, 1887) Nodularia dorri (Wattebled, 1886) Nodularia douglasiae (Griffith & Pidgeon, 1833) Nodularia gladiator (Ancey, 1881) Nodularia jourdyi (Morlet, 1886) Nodularia micheloti (Morlet, 1886) Nodularia nipponensis (Martens, 1877) Nodularia nuxpersicae (Dunker, 1848) Nodularia persculpta Haas, 1910 Nodulotrophon dalli (Kobelt, 1878) Noetia ponderosa (Say, 1822) Norrisia norrisi (G. B. Sowerby II, 1838) Notarchus punctatus Philippi, 1836 Notoacmea dipicta (Hinds, 1842) Notoacmea fenestrata (Reeve, 1855) Notoacmea insessa (Hinds, 1842) Notoacmea paleacea (Gould, 1853) Notoacmea persona (Rathke, 1833) Notoacmea scutum (Rathke, 1833) Notoacmea testudinalis (Muller, 1776) Notobranchaea macdonaldi Pelseneer, 1886 Notobryon wardi Notocrater craticulata (Suter, 1908) Notogillia sathon F. G. Thompson, 1969 Notogillia wetherbyi (Dall, 1885) Nototeredo knoxi (Bartsch, 1917) Nototeredo norvagicus (Spengler, 1792) Nototeuthis dimegacotyle Nesis and Nikitina, 1986 Nototodarus gouldi (McCoy, 1888) Nototodarus hawaiiensis (Berry, 1912) Nototodarus sloanii (Gray, 1849) Noumeaella rubrofasciata Gosliner, 1991 Novisuccinea chittenangoensis (Pilsbry, 1908) Novisuccinea ovalis (Say, 1817) Noyo intersessa (Roth, 1987) Nucella canaliculata (Duclos, 1832) Nucella emarginata (Deshayes, 1839) Nucella lamellosa (Gmelin, 1791) Nucella lapillus (Linnaeus, 1758) Nucella lima (Gmelin, 1791) Nucinella adamsi (Dall, 1898) Nucula aegeensis Jeffreys, 1879 Nucula annulata Hampson, 1971 Nucula atacellana Schenck, 1939 Nucula calcicola Moore, 1977 Nucula cancellata Meek and Hayden, 1856 Nucula cardara Dall, 1916 Nucula carlottensis Dall, 1897 Nucula chrysocome Nucula crenulata A. Adams, 1856 Nucula cymella Dall, 1886 Nucula darella Dall, 1916 Nucula delphinodonta Mighels and C. B. Adams, 1842 Nucula exigua G. B. Sowerby I, 1833 Nucula fernandinae Dall, 1927 Nucula granulosa Verrill, 1884 Nucula groenlandica Posselt, 1898 Nucula hanleyi Nucula nitidosa Winckworth, 1930 Nucula nucleus Linnaeus, 1758 Nucula proxima Say, 1822 Nucula subovata Verrill and Bush, 1898 Nucula sulcata Bronn, 1831 Nucula tumidula (Malm, 1860) Nucula turgida Nucula zophos A. H. Clark, 1960 Nuculana acuta (Conrad, 1832) Nuculana amiata (Dall, 1916) Nuculana aspecta (Dall, 1927) Nuculana bipennis (Dall, 1927) Nuculana callimene (Dall, 1908) Nuculana carpenteri (Dall, 1881) Nuculana caudata (Donovan, 1801) Nuculana cellulita (Dall, 1896) Nuculana cestrota (Dall, 1889) Nuculana concentrica (Say, 1824) Nuculana conceptionis (Dall, 1896) Nuculana crenulata (A. Adams, 1856) Nuculana dalli Krause, 1885 Nuculana elenensis (G. B. Sowerby I, 1833) Nuculana extenuata (Dall, 1897) Nuculana gomphoidea (Dall, 1916) Nuculana hamata (Carpenter, 1864) Nuculana jacksoni (Gould, 1841) Nuculana jamaicensis (d'Orbigny, 1842) Nuculana leonina (Dall, 1896) Nuculana liogona (Dall, 1916) Nuculana messanensis (Sequenza, 1877) Nuculana minuta (Muller, 1776) Nuculana navisa (Dall, 1916) Nuculana orixa (Dall, 1927) Nuculana ornata Nuculana oxia (Dall, 1916) Nuculana parva (G. B. Sowerby I, 1833) Nuculana penderi (Dall and Bartsch, 1910) Nuculana pernula (Müller, 1779) Nuculana platessa Nuculana radiata (Krause, 1885) Nuculana spargana (Dall, 1916) Nuculana subaequilatera (Jeffreys, 1879) Nuculana tamara Gorbunov, 1946 Nuculana taphria (Dall, 1896) Nuculana tenuisulcata (Couthouy, 1838) Nuculana verrilliana (Dall, 1886) Nuculoma corbuloides (Moller, 1842) Nutricola confusa (S. Gray, 1982) Nutricola cymata (Dall, 1913) Nutricola lordi (Baird, 1863) Nutricola ovalis (Dall, 1902) Nutricola tantilla (Gould, 1853) Nuttallia nuttallii (Conrad, 1837) Nuttallia obscurata (Reeve, 1857) Nuttallina californica (Reeve, 1847) Nyassunio nyassaensis (Lea, 1864) Nyassunio ujijiensis (Crosse, 1881) Nyeinchanconcha nyeinchani Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Nystiella atlantis Clench and Turner, 1952 Nystiella concava (Dall, 1889) Nystiella formosissima (Jeffreys, 1884) Nystiella pyrrhias (Watson, 1886) Obesotoma artica (A. Adams, 1855) Obesotoma japonica Obesotoma lawrenciana (Dall, 1919) Obesotoma miona (Dall, 1919) Obesotoma robusta (Packard, 1867) Obesotoma schantarica (Middendorff, 1849) Obesotoma simplex (Middendorff, 1849) Obesotoma tenuilirata (Dall, 1871) Obesotoma woodiana (Moller, 1842) Obliquaria reflexa Rafinesque, 1820 Obovalis omiensis (Heimburg, 1884) Obovaria arkansasensis (Lea, 1862) Obovaria choctawensis (Athearn, 1964) Obovaria haddletoni (Athearn, 1964) Obovaria olivaria (Rafinesque, 1820) Obovaria retusa (Lamarck, 1819) Obovaria subrotunda (Rafinesque, 1820) Obovaria unicolor (Lea, 1845) Oceanida graduata de Folin, 1870 Oceanida inglei Lyons, 1978 Ocenebra atropurpurea Carpenter, 1865 Ocenebra barbarensis (Gabb, 1865) Ocenebra beta (Dall, 1919) Ocenebra circumtexta Stearns, 1871 Ocenebra crispatissima S. S. Berry, 1953 Ocenebra emipowlusi Abbott, 1954 Ocenebra erinacea (Linnaeus, 1758) Ocenebra foveolata (Hinds, 1844) Ocenebra gracillima Stearns, 1871 Ocenebra grippi (Dall, 1911) Ocenebra inornata (Recluz, 1851) Ocenebra interfossa Carpenter, 1864 Ocenebra japonica Dunker, 1860 Ocenebra lurida (Middendorff, 1848) Ocenebra minirosea Abbott, 1954 Ocenebra minor Dall, 1919 Ocenebra painei (Dall, 1903) Ocenebra sclera Ocenebra squamulifera (Carpenter and Gabb, 1869) Ocenebra tracheia Dall, 1919 Ocenotrophon painei (Dall, 1903) Ocinebrina atropurpurea (Carpenter, 1865) Ocinebrina barbarensis (Gabb, 1865) Ocinebrina beta (Dall, 1919) Ocinebrina circumtexta (Stearns, 1871) Ocinebrina emipowlusi (Abbott, 1954) Ocinebrina foveolata (Hinds, 1844) Ocinebrina gracillima (Stearns, 1871) Ocinebrina grippi (Dall, 1911) Ocinebrina inornata (Recluz, 1851) Ocinebrina interfossa (Carpenter, 1864) Ocinebrina lurida (Middendorff, 1848) Ocinebrina minor (Dall, 1919) Ocinebrina sclera (Dall, 1919) Ocinebrina squamulifera (Carpenter, 1869) Ocinebrina tracheia (Dall, 1919) Octopoteuthis danae (Joubin, 1931) Octopoteuthis deletron Young, 1972 Octopoteuthis indica Naef, 1923 Octopoteuthis longiptera Akimushkin, 1963 Octopoteuthis megaptera (Verrill, 1885) Octopoteuthis nielseni (Robson, 1948) Octopoteuthis rugosa Clarke, 1980 Octopoteuthis sicula Rüppell, 1844 Octopus abaculus Norman and Sweeney, 1997 Octopus aculeatus D'Orbigny, 1834 in Férussac and D'Orbigny, 1834-1848 Octopus adamsi Benham, 1944 Octopus aegina Gray, 1849 Octopus alatus (Sasaki, 1920) Octopus alecto Berry, 1953 Octopus alpheus Norman, 1993 Octopus araneoides (Taki, 1964) Octopus arborescens (Hoyle, 1904) Octopus areolatus De Haan, 1839-1841 in Férussac and D'Orbigny, 1834-1848 Octopus aspilosomatis Norman, 1993 Octopus australis Hoyle, 1885 Octopus balboai Voss, 1971 Octopus berrima Stranks and Norman, 1993 Octopus bimaculatus Verrill, 1883 Octopus bimaculoides Pickford and McConnaughey, 1949 Octopus bocki Adam, 1941 Octopus briareus Robson, 1929 Octopus brocki Ortmann, 1888 Octopus bunurong Stranks, 1990 Octopus burryi Voss, 1950 Octopus californicus (Berry, 1911) Octopus campbelli (Smith, 1902) Octopus carolinensis Verrill, 1884 Octopus chierchiae Jatta, 1889 Octopus conispadiceus (Sasaki, 1917) Octopus cordiformis Quoy and Gaimard, 1832 Octopus cyanea Gray, 1849 Octopus defilippi Verany, 1851 Octopus dierythraeus Norman, 1993 Octopus digueti Perrier and Rochebrune, 1894 Octopus exannulatus Norman, 1993 Octopus fangsiao D'Orbigny, 1839-1841 in Férussac and D'Orbigny, 1834-1848 Octopus favonius Gray, 1849 Octopus filamentosus Blainville, 1826 Octopus filosus Howell, 1867 Octopus fitchi Berry, 1953 Octopus fujitai (Sasaki, 1929) Octopus gardineri (Hoyle, 1905) Octopus globosus Appellöf, 1886 Octopus graptus Norman, 1993 Octopus guangdongenis Dong, 1976 Octopus hardwickei Gray, 1849 Octopus hattai (Sasaki, 1929) Octopus hongkongensis Hoyle, 1885 Octopus horridus D'Orbigny, 1826 Octopus hubbsorum Berry, 1953 Octopus joubini Robson, 1929 Octopus kagoshimensis Ortmann, 1888 Octopus kaurna Stranks, 1990 Octopus kermadecensis (Berry, 1914) Octopus lechenaultii D'Orbigny, 1826 in Férussac and D'Orbigny, 1834-1848 Octopus lobensis Castellanos and Menni, 1969 Octopus longispadiceus (Sasaki, 1917) Octopus luteus (Sasaki, 1929) Octopus macropus Risso, 1826 Octopus magnificus Villanueva et al., 1992 Octopus maorum Hutton, 1880 Octopus marginatus Taki, 1964 Octopus maya Voss and Solis Ramirez, 1966 Octopus membranaceus Quoy and Gaimard, 1832 Octopus mercatoris Adam, 1937 Octopus microphthalmus Goodrich, 1896 Octopus micropyrsus Berry, 1953 Octopus mimus Gould, 1852 Octopus minor (Sasaki, 1920) Octopus mototi Norman, 1993 Octopus mutilans Taki, 1942 Octopus nanhaiensis Dong, 1976 Octopus nanus Adam, 1973 Octopus niveus Lesson, 1830 in 1830-1831 Octopus nocturnus Norman and Sweeney, 1997 Octopus occidentalis Steenstrup in Hoyle, 1886 Octopus ochotensis (Sasaki, 1920) Octopus oculifer (Hoyle, 1904) Octopus oliveri (Berry, 1914) Octopus ornatus Gould, 1852 Octopus oshimai (Sasaki, 1929) Octopus ovulum (Sasaki, 1917) Octopus pallidus Hoyle, 1885 Octopus parvus (Sasaki, 1917) Octopus penicillifer Berry, 1954 Octopus pentherinus Rochebrune and Mabille, 1889 Octopus polyzenia Gray, 1849 Octopus prashadi Adam, 1939 Octopus pricei (Berry, 1913) Octopus pumilus Norman and Sweeney, 1997 Octopus rapanui Voss, 1979 Octopus robsoni Adam, 1941 Octopus roosevelti Stuart, 1941 Octopus rubescens Berry, 1953 Octopus salutii Verany, 1839 Octopus sanctaehelenae Robson, 1929 Octopus sasakii Taki, 1942 Octopus selene Voss, 1971 Octopus spinosus (Sasaki, 1920) Octopus striolatus Dong, 1976 Octopus superciliosus Quoy and Gaimard, 1832 Octopus taprobanensis Robson, 1926 Octopus tehuelchus D'Orbigny, 1834 in 1834-1847 Octopus tenebricus Smith, 1884 Octopus tetricus Gould, 1852 Octopus tonganus Hoyle, 1885 Octopus tsugarensis (Sasaki, 1920) Octopus validus (Sasaki, 1920) Octopus varunae Oommen, 1971 Octopus veligero Berry, 1953 Octopus verrucosus Hoyle, 1885 Octopus vitiensis Hoyle, 1885 Octopus vulgaris Cuvier, 1797 Octopus warringa Stranks, 1990 Octopus winckworthi Robson, 1926 Octopus wolfi (Wülker, 1913) Octopus yendoi (Sasaki, 1920) Octopus zonatus Voss, 1968 Ocythoe tuberculata Rafinesque, 1814 Odostomella doliolum (Philippi, 1844) Odostomia abbotti Olsson and McGinty, 1958 Odostomia acrybia Dall and Bartsch, 1909 Odostomia acutidens Dall, 1884 Odostomia aepynota Dall and Bartsch, 1909 Odostomia aequisculpta Carpenter, 1864 Odostomia aleutica Dall and Bartsch, 1909 Odostomia altina Dall and Bartsch, 1909 Odostomia americana Dall and Bartsch, 1904 Odostomia amiantus Dall and Bartsch, 1907 Odostomia amilda Dall and Bartsch, 1909 Odostomia angularis Dall and Bartsch, 1907 Odostomia arctica Dall and Bartsch, 1909 Odostomia astricta Dall and Bartsch, 1907 Odostomia atossa Dall, 1908 Odostomia attenuata (Dall, 1892) Odostomia audoax Odostomia avellana Carpenter, 1864 Odostomia babylonia (C. B. Adams, 1845) Odostomia bachia Bartsch, 1927 Odostomia baldridgeae Bartsch, 1912 Odostomia barkleyensis Dall and Bartsch, 1910 Odostomia beauforti Jacot, 1921 Odostomia beringi Dall, 1871 Odostomia bruneri Verrill, 1882 Odostomia calcarella Bartsch, 1912 Odostomia callimene Bartsch, 1912 Odostomia callimorpha Dall and Bartsch, 1909 Odostomia calliope Bartsch, 1912 Odostomia canaliculata C. B. Adams, 1850 Odostomia cancellata D'Orbigny, 1842 Odostomia candida Odostomia canfieldi Dall, 1908 Odostomia capitana Dall and Bartsch, 1909 Odostomia cassandra Bartsch, 1912 Odostomia catalinensis Bartsch, 1927 Odostomia chinooki Bartsch, 1927 Odostomia churchi A. G. Smith and M. Gordon, 1948 Odostomia cincta (Carpenter, 1864) Odostomia ciquatonis Odostomia clementensis Bartsch, 1927 Odostomia clementina Dall and Bartsch, 1909 Odostomia clessini Dall and Bartsch, 1909 Odostomia columbiana Dall and Bartsch, 1907 Odostomia conoidea (Brocchi, 1814) Odostomia contrerasi Baker, Hanna, and Strong, 1928 Odostomia convexa Odostomia cookeana Bartsch, 1910 Odostomia cumshewaensis Bartsch, 1921 Odostomia cypria Dall and Bartsch, 1912 Odostomia dealbata (Stimpson, 1851) Odostomia delicatula Carpenter, 1864 Odostomia deliciosa Dall and Bartsch, 1907 Odostomia dicella Bartsch, 1912 Odostomia didyma (A. E. Verrill and Bush, 1900) Odostomia dinella Dall and Bartsch, 1909 Odostomia disparilis Verrill, 1884 Odostomia dotella (Dall and Bartsch, 1909) Odostomia dux Dall and Bartsch, 1906 Odostomia eburnea Odostomia edmondi Jordan, 1920 Odostomia eldorana Bartsch, 1912 Odostomia elsa Dall and Bartsch, 1909 Odostomia emeryi Odostomia engbergi Bartsch, 1920 Odostomia engonia Bush, 1885 Odostomia enora Dall and Bartsch, 1909 Odostomia esilda Dall and Bartsch, 1909 Odostomia eucosmia Dall and Bartsch, 1909 Odostomia eugena Dall and Bartsch, 1909 Odostomia euglypta Jordan, 1920 Odostomia exara Dall and Bartsch, 1907 Odostomia excisa Bartsch, 1912 Odostomia excolpa Bartsch, 1912 Odostomia eyerdami Bartsch, 1927 Odostomia farallonensis Dall and Bartsch, 1909 Odostomia farma Dall and Bartsch, 1909 Odostomia fernandina (Bartsch In Dall, 1927) Odostomia fetella Dall and Bartsch, 1909 Odostomia fia Bartsch, 1927 Odostomia floridana (Bartsch In Dall, 1927) Odostomia franciscana Bartsch, 1917 Odostomia gabrielensis Odostomia georgiana (Bartsch In Dall, 1927) Odostomia gloriosa Bartsch, 1912 Odostomia gouldii Carpenter, 1864 Odostomia gracilientis (Keep, 1887) Odostomia gravida Gould, 1853 Odostomia grijalvae Baker, Hanna, and Strong, 1928 Odostomia grippiana Bartsch, 1912 Odostomia hagemeisteri Dall and Bartsch, 1909 Odostomia harfordensis Dall and Bartsch, 1907 Odostomia havanensis Pilsbry and Aguayo, 1933 Odostomia heathi A. G. Smith and M. Gordon, 1948 Odostomia helena Bartsch, 1912 Odostomia helga Dall and Bartsch, 1909 Odostomia hemphilli Dall and Bartsch, 1909 Odostomia hendersoni Bartsch, 1909 Odostomia herilda Dall and Bartsch, 1909 Odostomia heterocincta Bartsch, 1912 Odostomia hypatia Dall and Bartsch, 1912 Odostomia hypocurta Dall and Bartsch, 1909 Odostomia iliuliukensis Dall and Bartsch, 1909 Odostomia inflata Carpenter, 1864 Odostomia jadisi Olsson and McGinty, 1958 Odostomia kadiakensis Dall and Bartsch, 1909 Odostomia kelseyi Bartsch, 1912 Odostomia kennerleyi Dall and Bartsch, 1907 Odostomia killisnooensis Dall and Bartsch, 1909 Odostomia krausei Clessin, 1900 Odostomia laevigata (d'Orbigny, 1842) Odostomia lastra Dall and Bartsch, 1909 Odostomia laxa Dall and Bartsch, 1909 Odostomia martensi Dall and Bartsch, 1906 Odostomia martinensis Odostomia mendozae Baker, Hanna, and Strong, 1928 Odostomia modesta Stimpson, 1851 Odostomia moratora Dall and Bartsch, 1909 Odostomia movilla Dall and Bartsch, 1909 Odostomia navarettei Baker, Hanna, and Strong, 1928 Odostomia navisa Dall and Bartsch, 1907 Odostomia nemo Dall and Bartsch, 1909 Odostomia nivosa Odostomia nota Dall and Bartsch, 1909 Odostomia notilla Dall and Bartsch, 1909 Odostomia nuciformis Carpenter, 1864 Odostomia nunivakensis Dall and Bartsch, 1909 Odostomia oregonensis Dall and Bartsch, 1907 Odostomia ornatissima (Haas, 1943) Odostomia peasei Odostomia pesa Dall and Bartsch, 1909 Odostomia phanella Dall and Bartsch, 1909 Odostomia pharcida Dall and Bartsch, 1907 Odostomia plicata (Montagu, 1803) Odostomia pocahontasae J. B. Henderson and Bartsch, 1914 Odostomia porteri Baker, Hanna, and Strong, 1928 Odostomia pratoma Dall and Bartsch, 1909 Odostomia producta (C. B. Adams, 1840) Odostomia profundicola Dall and Bartsch, 1909 Odostomia promeces Odostomia pulcherrima Dall and Bartsch, 1909 Odostomia pulcia Dall and Bartsch, 1909 Odostomia quadrae Dall and Bartsch, 1910 Odostomia quinquecincta (Carpenter, 1856) Odostomia resina Dall and Bartsch, 1909 Odostomia richi Dall and Bartsch, 1909 Odostomia ritteri Dall and Bartsch, 1909 Odostomia ryalea Bartsch In Dall, 1927 Odostomia ryclea Bartsch In Dall, 1927 Odostomia sanctorum Dall and Bartsch, 1909 Odostomia sanjuanensis Bartsch, 1920 Odostomia sapia Dall and Bartsch, 1909 Odostomia satura Carpenter, 1864 Odostomia scalaris MacGillivray, 1843 Odostomia septentrionalis Dall and Bartsch, 1909 Odostomia sillana Dall and Bartsch, 1909 Odostomia sitkaensis Clessin, 1900 Odostomia skidegatensis Bartsch, 1912 Odostomia smithii A. E. Verrill, 1880 Odostomia somersi A. E. Verrill and Bush, 1900 Odostomia spreadboroughi Dall and Bartsch, 1910 Odostomia stearnsiella Odostomia stephensae Dall and Bartsch, 1909 Odostomia striata (A. E. Verrill, 1880) Odostomia strongi Bartsch, 1927 Odostomia subdotella Hertlein and Strong, 1951 Odostomia subglobosa Bartsch, 1912 Odostomia subturrita Dall and Bartsch, 1909 Odostomia sulcosa (Mighels, 1843) Odostomia tacomaensis Dall and Bartsch, 1907 Odostomia talpa Dall and Bartsch, 1909 Odostomia tenuisculpta Carpenter, 1864 Odostomia teres Bush, 1885 Odostomia terryi Olsson and Mcginty, 1858 Odostomia thalia Bartsch, 1912 Odostomia thea Bartsch, 1912 Odostomia tornata A. E. Verrill, 1884 Odostomia toyatani Odostomia trachis Dall and Bartsch, 1909 Odostomia tremperi Bartsch, 1927 Odostomia trifida (Totten, 1834) Odostomia truncatula Odostomia turricula Dall and Bartsch, 1903 Odostomia ulloana Strong, 1949 Odostomia unalaskensis Dall and Bartsch, 1909 Odostomia unidentata (Montagu, 1803) Odostomia valdezi Dall and Bartsch, 1907 Odostomia valeroi Odostomia vancouverensis Dall and Bartsch, 1910 Odostomia vicola Dall and Bartsch, 1909 Odostomia vincta Dall and Bartsch, 1909 Odostomia virginalis Odostomia virginica J. B. Henderson and Bartsch, 1914 Odostomia vizcainoana Baker, Hanna, and Strong, 1928 Odostomia washingtonia Bartsch, 1920 Odostomia whitei Bartsch, 1927 Odostomia willetti Bartsch, 1917 Odostomia willisi Bartsch, 1909 Odostomia winkleyi Bartsch, 1909 Odostomia youngi Dall and Bartsch, 1910 Oenopota alaskensis (Dall, 1871) Oenopota albrechti (Krause, 1885) Oenopota aleutica (Dall, 1871) Oenopota alitakensis (Dall, 1919) Oenopota althorpensis (Dall, 1919) Oenopota althorpi (Dall, 1919) Oenopota amiantus (Dall, 1919) Oenopota angulosus (G. O. Sars, 1878) Oenopota arctica Oenopota babylonius (Dall, 1919) Oenopota beckii (Moller, 1842) Oenopota bergensis (Friele, 1886) Oenopota bicarinatus (Couthouy, 1839) Oenopota blaneyi (Bush, 1909) Oenopota cancellata (Mighels and C. B. Adams, 1842) Oenopota chiachiana (Dall, 1919) Oenopota cinerea (Moller, 1842) Oenopota concinnulus (A. E. Verrill, 1882) Oenopota crebricostata (Carpenter, 1864) Oenopota decussatus (Couthouy, 1839) Oenopota dictyophora Bouchet and Waren, 1980 Oenopota elegans (Moller, 1842) Oenopota eriopis (Dall, 1919) Oenopota exaratus (Moller, 1842) Oenopota excurvata (Carpenter, 1864) Oenopota exquisita (Bartsch, 1941) Oenopota fidicula (Gould, 1849) Oenopota fiora (Dall, 1919) Oenopota galgana (Dall, 1919) Oenopota gouldii (A. E. Verrill, 1882) Oenopota granitica (Dall, 1919) Oenopota graphica (Locard, 1897) Oenopota harpa (Dall, 1885) Oenopota harpularius (Couthouy, 1838) Oenopota healyi (Dall, 1919) Oenopota hebes (A. E. Verrill, 1880) Oenopota impressa (Morch, 1869) Oenopota incisulus (Verrill, 1882) Oenopota inequita (Dall, 1919) Oenopota inflata (Posselt and A. S. Jensen, 1898) Oenopota krausei (Dall, 1886) Oenopota kyskana (Dall, 1919) Oenopota laevigatus (Dall, 1871) Oenopota levidensis (Carpenter, 1864) Oenopota lotta (Dall, 1919) Oenopota luetkeni (Dall, 1919) Oenopota lutkeana (Krause, 1885) Oenopota maurellei (Dall and Bartsch, 1910) Oenopota metschigmensis (Krause, 1885) Oenopota mitrata (Dall, 1919) Oenopota mitrula Oenopota morchi (Leche, 1878) Oenopota murdochiana (Dall, 1885) Oenopota nazanensis (Dall, 1919) Oenopota nodulosus (Krause, 1885) Oenopota novajasemljensis (Leach, 1878) Oenopota nunivakensis (Dall, 1919) Oenopota obliqua (G. O. Sars, 1878) Oenopota ovalis (Friele, 1877) Oenopota pavlova (Dall, 1919) Oenopota pingelii (Moller, 1842) Oenopota pleurotomaria (Couthouy, 1838) Oenopota popovius (Dall, 1919) Oenopota pribilova (Dall, 1919) Oenopota pusilla (A. E. Verrill, 1882) Oenopota pyramidalis (Strom, 1788) Oenopota pyrimidalis (Strom, 1788) Oenopota rassimus (Dall, 1919) Oenopota regulus (Dall, 1919) Oenopota reticulatus (T. Brown, 1827) Oenopota roseus (Loven, 1846) Oenopota rufa (Montagu, 1803) Oenopota sarsii (A. E. Verrill, 1880) Oenopota scalaris (Moller, 1842) Oenopota sculpturata (Dall, 1887) Oenopota simplex (Middendorff, 1849) Oenopota solida (Dall, 1887) Oenopota subvitrea (A. E. Verrill, 1884) Oenopota tabulata (Carpenter, 1864) Oenopota tenuilirata Oenopota tenuiliratus Oenopota tenuissima (Dall, 1919) Oenopota trevelliana (Turton, 1834) Oenopota turricula (Montagu, 1803) Oenopota violaceus (Mighels and C. B. Adams, 1842) Oenopota woodianus (Moller, 1842) Ogaridiscus subrupicola (Dall, 1877) Okenia angelensis Lance, 1966 Okenia ascidicola M. P. Morse, 1972 Okenia aspera (Alder and Hancock, 1845) Okenia cupella (Vogel and Schultz, 1970) Okenia elegans (Leuckart, 1828) Okenia impexa Er. Marcus, 1957 Okenia leachii (Alder and Hancock, 1854) Okenia modesta A. E. Verrill, 1875 Okenia plana Baba, 1960 Okenia pulchella Alder and Hancock, 1854 Okenia quadricornis (Montagu, 1815) Okenia sapelona Ev. Marcus and Er. Marcus, 1967 Okenia vancouverensis (O'Donoghue, 1921) Okenia zoobotryon (Smallwood, 1910) Oldroydia percrassa (Dall, 1894) Olea hansineensis Agersborg, 1923 Oligyra orbiculata (Say, 1818) Oliva bifasciata Kuster, 1878 Oliva bollingi Clench, 1937 Oliva reticularis Lamarck, 1810 Oliva richerti Kay, 1979 Oliva sayana Ravenel, 1834 Oliva scripta Lamarck, 1810 Olivella acteocina Olivella alba (Marrat In Sowerby, 1871) Olivella alectona (Duclos, 1835) Olivella anazora (Duclos, 1835) Olivella baetica Carpenter, 1864 Olivella biplicata (G. B. Sowerby I, 1825) Olivella bullula (Reeve, 1850) Olivella cymatilis S. S. Berry, 1963 Olivella dama (Wood, 1828) Olivella dealbata (Reeve, 1850) Olivella fimbriata Olivella fletcherae S. S. Berry, 1958 Olivella floralia (Duclos, 1853) Olivella fuscocincta Dall, 1889 Olivella gracilis (Broderip and Sowerby, 1828) Olivella intorta Carpenter, 1857 Olivella inusta G. B. Sowerby III, 1915 Olivella lactea (Marrat, 1871) Olivella lineolata Olivella macgintyi Olsson, 1956 Olivella minuta (Link, 1807) Olivella moorei Abbott, 1951 Olivella mutica (Say, 1822) Olivella nivea (Gmelin, 1791) Olivella parva T. S. Oldroyd, 1921 Olivella perplexa Olsson, 1956 Olivella petiolita (Duclos, 1835) Olivella purpurata Olivella pusilla (Marrat, 1871) Olivella rosolina (Duclos, 1835) Olivella rotunda Dall, 1889 Olivella rufifasciatus Olivella semistriata (Gray, 1839) Olivella sphoni Burch and Campbell, 1963 Olivella stegeri Olsson, 1956 Olivella steveni Burch and Campbell, 1963 Olivella strigata (Reeve, 1850) Olivella tabulata Dall, 1889 Olivella tergina (Duclos, 1835) Olivella thompsoni Olsson, 1956 Olivella verriauxii (Duclos, 1857) Olivella walkeri S. S. Berry, 1958 Olivella watermani McGinty, 1940 Olivella zanoeta (Duclos, 1835) Olivella zonalis (Lamarck, 1811) Omalogyra atomus (Philippi, 1841) Omalogyra densicostata (Jeffreys, 1884) Omalogyra japonica Omalogyra planorbis (Dall, 1927) Ommastrephes bartramii (Lesueur, 1821) Onchidella borealis Dall, 1871 Onchidella brattstroemi Ev. Marcus, 1978 Onchidella carpenteri (W. G. Binney, 1860) Onchidella celtica (Forbes and Hanley, 1852) Onchidella floridana (Dall, 1885) Onchidella wah Ev. Marcus, 1978 Onchidiopsis corys Balch, 1910 Onchidiopsis glacialis (M. Sars, 1851) Onchidiopsis hannai Dall, 1916 Onchidiopsis kingmaruensis Russell, 1942 Onchidoris aspersa (Adler and Henderson, 1842) Onchidoris bilamellata (Linnaeus, 1767) Onchidoris depressa (Alder and Hancock, 1842) Onchidoris diademata (Gould, 1870) Onchidoris grisea (Gould, 1870) Onchidoris hystricina (Bergh, 1878) Onchidoris inconspicua (Alder and Hancock, 1851) Onchidoris muricata (Muller, 1776) Onchidoris oblonga (Alder and Hancock, 1845) Onchidoris sparsa (Alder and Hancock, 1846) Onchidoris tenella (Gould, 1870) Onoba aculeus (Gould, 1841) Onoba alaskana (Dall, 1886) Onoba aurivillii (Dall, 1887) Onoba bakeri (Bartsch, 1910) Onoba carpenteri (Weinkauff, 1885) Onoba castanella (Dall, 1886) Onoba cerinella Dall, 1887 Onoba dalli (Bartsch, 1927) Onoba dimora (Bartsch, 1917) Onoba exarata (Stimpson, 1851) Onoba forresterensis (Willett, 1934) Onoba kyskensis (Bartsch, 1911) Onoba mighelsi (Stimpson, 1851) Onoba muriei (Bartsch and Rehder, 1939) Onoba palmeri (Dall, 1919) Onoba pelagica (Stimpson, 1851) Onoba semicostata (Montagu, 1803) Onobops crassus (F. G. Thompson, 1968) Onobops jacksoni (Bartsch, 1953) Onychoteuthis banksii (Leach, 1817) Onychoteuthis borealijaponicus Okada, 1927 Onychoteuthis compacta (Berry, 1913) Onychoteuthis meridiopacifica Rancurel and Okutani, 1990 Onykia appellofi (Pfeffer, 1900) Onykia carriboea Lesueur, 1821 Onykia indica Okutani, 1981 Onykia intermedia (Pfeffer, 1912) Onykia platyptera (D'Orbigny, 1834 in 1834-1847) Onykia rancureli Okutani, 1981 Onykia verrilli (Pfeffer, 1900) Oocorys abyssorum (Verrill and Smith, 1884) Oocorys barbouri Clench and Aguayo, 1939 Oocorys bartschi Rehder, 1943 Oocorys caribbaea Clench and Aguayo, 1939 Oocorys sulcata P. Fischer, 1883 Oocorys verrillii (Dall, 1889) Opalia abbotti Clench and Turner, 1952 Opalia acus Opalia andrewsii (A. E. Verrill, 1882) Opalia aurifila (Dall, 1889) Opalia borealis Keep, 1881 Opalia bullata (Carpenter, 1864) Opalia burryi Clench and Turner, 1950 Opalia chacei Strong, 1937 Opalia crenata (Linnaeus, 1758) Opalia crenatoides (Carpenter, 1864) Opalia crosseana (Tapparone-canefri, 1876) Opalia eolis Clench and Turner, 1950 Opalia espirita (Baker, Hanna, and Strong, 1930) Opalia evicta De Boury, 1919 Opalia funiculata (Carpenter, 1857) Opalia hotessieriana (d'Orbigny, 1842) Opalia infrequens (C. B. Adams, 1852) Opalia leeana (A. E. Verrill, 1883) Opalia montereyensis (Dall, 1907) Opalia pumilio (Morch, 1874) Opalia retiporosa (Carpenter, 1864) Opalia sanjuanensis (Lowe, 1932) Opalia spongiosa (Carpenter, 1866) Opalia tortilis (Watson, 1883) Opalia watsoni (De Boury, 1911) Opalia wroblewskii (Morch, 1876) Opaliopsis atlantis (Clench and Turner, 1952) Opaliopsis concava (Dall, 1889) Opeas pumilum (Pfeiffer, 1840) Opeas pyrgula Schmacker and Boettger, 1891 Ophiodermella cancellata (Carpenter, 1864) Ophiodermella fancherae (Dall, 1903) Ophiodermella halcyonis (Dall, 1908) Ophiodermella inermis (Reeve, 1843) Ophiodermella montereyensis Bartsch, 1944 Ophiodermella rhines (Dall, 1908) Opisthoteuthis agassizii Verrill, 1883 Opisthoteuthis californiana Berry, 1949 Opisthoteuthis depressa Ijima and Ikeda, 1895 Opisthoteuthis extensa Thiele in Chun, 1915 Opisthoteuthis grimaldii (Joubin, 1903) Opisthoteuthis japonica Taki, 1962 Opisthoteuthis medusoides Thiele in Chun, 1915 Opisthoteuthis persephone Berry, 1918 Opisthoteuthis philipii Oommen, 1976 Opisthoteuthis pluto Berry, 1918 Opisthoteuthis vossi Sanchez and Guerra, 1989 Orbitestella bastowi Gatliff, 1906 Orbitestella emeryi Orbitestella regina Oreohelix alpina (Elrod, 1901) Oreohelix amariradix Pilsbry, 1934 Oreohelix anchana Gregg, 1953 Oreohelix barbata Pilsbry, 1905 Oreohelix californica S. S. Berry, 1931 Oreohelix carinifera Pilsbry, 1912 Oreohelix concentrata (Dall, 1896) Oreohelix confragosa Metcalf, 1974 Oreohelix elrodi (Pilsbry, 1900) Oreohelix eurekensis J. Henderson and Daniels, 1916 Oreohelix florida Pilsbry, 1939 Oreohelix grahamensis Gregg and W. B. Miller, 1974 Oreohelix hammeri Fairbanks, 1984 Oreohelix handi Pilsbry and Ferriss, 1918 Oreohelix haydeni (Gabb, 1869) Oreohelix hemphilli (Newcomb, 1869) Oreohelix hendersoni Pilsbry, 1912 Oreohelix houghi W. B. Marshall, 1929 Oreohelix howardi Jones, 1944 Oreohelix idahoensis (Newcomb, 1866) Oreohelix intersum (Hemphill, 1890) Oreohelix jaegeri S. S. Berry, 1931 Oreohelix jugalis (Hemphill, 1890) Oreohelix junii Pilsbry, 1934 Oreohelix litoralis Crews and Metcalf, 1982 Oreohelix magdalenae Pilsbry, 1939 Oreohelix metcalfei Cockerell, 1905 Oreohelix nevadensis S. S. Berry, 1932 Oreohelix parawanensis Gregg, 1941 Oreohelix peripherica (Ancey, 1881) Oreohelix pilsbryi Ferriss, 1917 Oreohelix pygmaea Pilsbry, 1913 Oreohelix socorroensis Pilsbry, 1905 Oreohelix strigosa (Gould, 1846) Oreohelix subrudis (Reeve, 1854) Oreohelix swopei Pilsbry and Ferriss, 1917 Oreohelix tenuistriata J. Henderson and Daniels, 1916 Oreohelix uinta Brooks, 1939 Oreohelix variabilis J. Henderson, 1929 Oreohelix vortex S. S. Berry, 1932 Oreohelix waltoni Solem, 1975 Oreohelix yavapai Pilsbry, 1905 Orinella vanhyningi Bartsch, 1944 Ornithoteuthis antillarum Adam, 1957 Ornithoteuthis volatilis (Sasaki, 1915) Orobitella bakeri (Dall, 1916) Orobitella californica (Dall, 1899) Orobitella floridana (Dall, 1899) Orobitella limpida (Dall, 1899) Orobophana baldwini Ancey, 1904 Orobophana cookei Neal, 1934 Orobophana juddii Pilsbry and Cooke, 1908 Orobophana meineckei Neal, 1934 Orobophana stokesii Neal, 1934 Orobophana uberta Gould, 1847 Orthalicus floridensis Pilsbry, 1899 Orthalicus reses (Say, 1830) Ortmanniana ligamentina (Lamarck, 1819) Ortmanniana pectorosa (Conrad, 1834) Ostrea conchaphila Carpenter Ostrea cristata Born, 1778 Ostrea edulis Linnaeus, 1758 Ostrea lurida Carpenter, 1864 Ostrea megadon Hanley, 1846 Ostrea permollis G. B. Sowerby II, 1871 Ostrea sandvicensis G. B. Sowerby II, 1871 Ostrea stentina Payraudeau, 1826 Otala lactea (Muller, 1774) Otina ovata (Brown, 1827) Ovatella myosotis (Draparnaud, 1801) Oxychilus alliarius (J. S. Miller, 1822) Oxychilus cellarius (Muller, 1774) Oxychilus draparnaudi (Beck, 1837) Oxychilus helveticus (Blum, 1881) Oxygyrus keraudrenii (Lesueur, 1817) Oxyloma decampi (Tryon, 1866) Oxyloma deprimidum Franzen, 1973 Oxyloma effusum (Pfeiffer, 1853) Oxyloma groenlandicum (Moller, 1842) Oxyloma hawkinsi (Baird, 1863) Oxyloma haydeni (W. G. Binney, 1858) Oxyloma kanabense Pilsbry, 1948 Oxyloma missoula Hubricht, 1982 Oxyloma nuttallianum (I. Lea, 1841) Oxyloma peoriense (Wolf, 1894) Oxyloma retusum (I. Lea, 1834) Oxyloma salleanum (Pfeiffer, 1849) Oxyloma sillimani (Bland, 1865) Oxyloma subeffusum Pilsbry, 1948 Oxyloma verrilli (Bland, 1865) Oxynoe antillarum Morch, 1863 Oxynoe azuropunctata K. R. Jensen, 1980 Pachynaias rugososulcata (Lea, 1866) Pachynaias spheniopsis (Morelet, 1849) Pachystremiscus ornatus (Olsson and McGinty, 1958) Pachystremiscus pulchellus (Olsson and McGinty, 1958) Paedoclione doliiformis Danforth, 1907 Paetulunio fabalis (Lea, 1831) Palio dubia (M. Sars, 1829) Palio nothus (Johnston, 1838) Palio pallida Bergh, 1880 Palio zosterae (O'Donoghue, 1924) Palisa kristenseni (Ev. Marcus and Er. Marcus, 1963) Pallifera dorsalis (A. Binney, 1842) Pallifera fosteri F. C. Baker, 1939 Pallifera hemphilli (W. G. Binney, 1885) Pallifera marmorea Pilsbry, 1948 Pallifera megaphallica Grimm, 1961 Pallifera ohioensis (Sterki, 1908) Pallifera pilsbryi C. D. Miles and Mead, 1960 Pallifera ragsdalei Pallifera secreta (Cockerell, 1900) Pallifera tournescalis Branson, 1968 Pallifera varia Hubricht, 1953 Palliolum furtivum (Loven, 1846) Palliolum imbrifer (Loven, 1846) Palliolum leptaleum (Verrill, 1884) Palliolum reticulum (Dall, 1886) Palliolum ringnesia Palliolum striatum (Muller, 1776) Palliolum subimbrifer (Verrill and Bush, 1897) Palliolum tigerinum (O. F. Mueller, 1776) Palliolum undatum Panacca arata (A. E. Verrill and S. Smith, 1881) Panacca loveni (Jeffreys, 1881) Pandora arenosa Conrad, 1834 Pandora bilirata Conrad, 1855 Pandora bushiana Dall, 1886 Pandora cornuta C. B. Adams, 1852 Pandora filosa (Carpenter, 1864) Pandora forresterensis Willett, 1918 Pandora glacialis Leach, 1819 Pandora gouldiana Dall, 1886 Pandora grandis Dall, 1877 Pandora granulata (Dall, 1915) Pandora inaequivalvis (Linnaeus, 1758) Pandora inflata Boss and Merrill, 1965 Pandora inornata A. E. Verrill and Bush, 1898 Pandora pinna (Montagu, 1803) Pandora punctata Conrad, 1837 Pandora radiata Sowerby, 1835 Pandora trilineata Say, 1822 Pandora wardiana A. Adams, 1859 Panomya ampla Dall, 1898 Panomya beringiana Dall, 1916 Panomya granulata Panomya norvegica (Spengler, 1793) Panomya priapus (Tilesius, 1822) Panopea abrupta (Conrad, 1849) Panopea bitruncata (Conrad, 1872) Panopea generosa Gould, 1850 Papustyla pulcherrima Papyridea semisulcata (J. E. Gray, 1825) Papyridea soleniformis (Bruguiere, 1789) Parabornia squillina Boss, 1965 Paraclione longicaudata (Souleyet, 1852) Parahyotissa mcgintyi Harry, 1985 Paralaoma caputspinulae (Reeve, 1852) Parallelodon rugosus Buckman Paramya subovata (Conrad, 1845) Parapholas californica (Conrad, 1837) Parashiela beetsi Parastarte triquetra (Conrad, 1846) Parateuthis tunicata Thiele, 1920 Paravitrea alethia Hubricht, 1978 Paravitrea amicalola Hubricht, 1976 Paravitrea andrewsae (W. G. Binney, 1879) Paravitrea aulacogyra (Pilsbry and Ferris, 1906) Paravitrea bellona Hubricht, 1978 Paravitrea bidens Hubricht, 1963 Paravitrea blarina Hubricht, 1963 Paravitrea calcicola H. B. Baker, 1931 Paravitrea capsella (Gould, 1851) Paravitrea ceres Hubricht, 1978 Paravitrea clappi (Pilsbry, 1898) Paravitrea conecuhensis (G. H. Clapp, 1917) Paravitrea dentilla Hubricht, 1978 Paravitrea diana Hubricht, 1983 Paravitrea grimmi Hubricht, 1968 Paravitrea hera Hubricht, 1983 Paravitrea lacteodens (Pilsbry, 1903) Paravitrea lamellidens (Pilsbry, 1898) Paravitrea lapilla Hubricht, 1965 Paravitrea metallacta Hubricht, 1963 Paravitrea mira Hubricht, 1975 Paravitrea multidentata (A. Binney, 1840) Paravitrea petrophila (Bland, 1883) Paravitrea pilsbryana (G. H. Clapp, 1919) Paravitrea placentula (Shuttleworth, 1852) Paravitrea pontis H. B. Baker, 1931 Paravitrea reesei Morrison, 1937 Paravitrea septadens Hubricht, 1978 Paravitrea seradens Hubricht, 1972 Paravitrea significans (Bland, 1866) Paravitrea simpsoni (Pilsbry, 1889) Paravitrea smithi (Walker, 1928) Paravitrea subtilis Hubricht, 1978 Paravitrea tantilla Hubricht, 1963 Paravitrea ternaria Hubricht, 1978 Paravitrea tiara Hubricht, 1978 Paravitrea toma Hubricht, 1975 Paravitrea tridens Pilsbry, 1946 Paravitrea umbilicaris (Ancey, 1887) Paravitrea variabilis H. B. Baker, 1929 Paravitrea varidens Hubricht, 1978 Pareledone adelieana (Berry, 1917) Pareledone charcoti (Joubin, 1905) Pareledone framensis Lu and Stranks, 1994 Pareledone harrissoni (Berry, 1917) Pareledone polymorpha (Robson, 1930) Pareledone prydzensis Lu and Stranks, 1994 Pareledone turqueti (Joubin, 1905) Parreysia corrugata (Müller, 1774) Parreysia keralaensis Bolotov, Pasupuleti & Subba Rao in Bolotov et al., 2022 Parreysia nagpoorensis (Lea, 1860) Parreysia plagiosoma (Benson, 1862) Parreysia rajahensis (Lea, 1841) Parreysia rakhinensis Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Parvamussium alaskense (Dall, 1871) Parvanachis obesa (C. B. Adams, 1845) Parvanachis ostreicola (G. B. Sowerby III, 1882) Parvasolenaia neotriangularis (He & Zhuang, 2013) Parvasolenaia rivularis (Heude, 1877) Parvasolenaia triangularis (Heude, 1885) Parvaspina collina (Conrad, 1837) Parvaspina steinstansana (R. I. Johnson & Clarke, 1983) Parvicardium elegantulum (Moller, 1842) Parvicardium exiguum (Gmelin, 1791) Parvicardium hauniense (Høpner Petersen & Russell, 1971) Parvicardium minimum (Philippi, 1836) Parvicardium ovale (G. B. Sowerby, 1840) Parvicardium scabrum Philippi, 1844 Parvilucina approximata (Dall, 1901) Parvilucina blanda (Bland and Simpson, 1901) Parvilucina costata (d'Orbigny, 1842) Parvilucina lampra (Dall, 1901) Parvilucina lingualis (Carpenter, 1864) Parvilucina mazatlanica (Carpenter, 1855) Parvilucina multilineata (Tuomey and Holmes, 1857) Parvilucina tenuisculpta (Carpenter, 1864) Parviphos adelus (Schwengel, 1942) Parviturbo acuticostatus (Carpenter, 1864) Parviturbo calidimaris Pilsbry and McGinty, 1945 Parviturbo comptus (Woodring, 1928) Parviturbo concepcionensis (Lowe, 1935) Parviturbo francesae Pilsbry and McGinty, 1945 Parviturbo rehderi Pilsbry and McGinty, 1945 Parviturbo stearnsi (Dall, 1918) Parviturbo turbinus (Dall, 1889) Parviturbo weberi Pilsbry and McGinty, 1945 Parviturboides interruptus (C. B. Adams, 1850) Patella asprea Patella depressa Patella intermedia Patella mexicana Broderip and Sowerby, 1829 Patella ulyssiponensis Gmelin, 1791 Patella vulgata Patelloida pustulata (Helbling, 1779) Patera appressa (Say, 1821) Patera binneyana (Pilsbry, 1899) Patera clarki (I. Lea, 1858) Patera clenchi (Rehder, 1932) Patera indianorum (Pilsbry, 1899) Patera kiowaensis (Simpson, 1888) Patera laevior (Pilsbry, 1940) Patera leatherwoodi (Pratt, 1971) Patera panselenus (Hubricht, 1976) Patera pennsylvanica (Green, 1827) Patera perigrapta (Pilsbry, 1894) Patera roemeri (Pfeiffer, 1848) Patera sargentiana (C. W. Johnson and Pilsbry, 1892) Patina pellucida (Linnaeus, 1758) Patinopecten caurinus (Gould, 1850) Paziella nuttingi (Dall, 1896) Paziella oregonia (Bullis, 1964) Paziella pazi (Crosse, 1869) Pazionotus stimpsonii (Dall, 1889) Pecosorbis kansasensis (S. S. Berry, 1966) Pecten chazaliei Dautzenberg, 1900 Pecten eucymatus Pecten maximus (Linnaeus, 1758) Pectinella sigsbeei (Dall, 1886) Pectinodonta arcuata Dall, 1882 Pedicularia californica Newcomb, 1864 Pedicularia decussata Gould, 1855 Pedipes angulatus C. B. Adams, 1852 Pedipes mirabilis (Megerle von Muhlfeld, 1816) Pedipes ovalis (C. B. Adams, 1849) Pedipes unisulcatus J. G. Cooper, 1867 Pegias fabula (Lea, 1838) Pelseneeria stimpsonii (A. E. Verrill, 1872) Peltodoris greeleyi MacFarland, 1909 Pelycidion kelseyi (Bartsch, 1911) Penitella conradi Valenciennes, 1846 Penitella fitchi Turner, 1955 Penitella gabbii (Tryon, 1863) Penitella hopkinsi Kennedy and Armentrout, 1989 Penitella kamakurensis (Yokoyama, 1922) Penitella penita (Conrad, 1837) Penitella richardsoni Kennedy, 1989 Penitella turnerae Evans and Fisher, 1966 Peracle apicifulva Meisenheimer, 1906 Peracle bispinosa Pelseneer, 1888 Peracle diversa di Monterosato, 1875 Peracle moluccensis Tesch, 1913 Peracle reticulata (d'Orbigny, 1836) Peracle triacantha P. Fischer, 1882 Periglypta listeri (J. E. Gray, 1838) Periglypta multicostata (Sowerby, 1835) Peringia ulvae (Pennant, 1777) Periploma abyssorum Periploma affine A. E. Verrill and Bush, 1898 Periploma alaskanum Williams, 1940 Periploma aleuticum (Krause, 1885) Periploma anguliferum (Philippi, 1847) Periploma discus Stearns, 1890 Periploma fragile (Totten, 1835) Periploma leanum (Conrad, 1831) Periploma margaritaceum (Lamarck, 1801) Periploma orbiculare Periploma papyratium (Say, 1822) Periploma planiusculum G. B. Sowerby I, 1834 Periploma tenerum P. Fischer, 1882 Peristichia agria Dall, 1889 Peristichia pedroana (Dall and Bartsch, 1909) Peristichia toreta Dall, 1889 Perna perna (Linnaeus, 1758) Perotrochus adansonianus (Crosse and P. Fischer, 1861) Perotrochus amabilis (Bayer, 1963) Perotrochus atlanticus Rios and Matthews, 1968 Perotrochus gemma F. M. Bayer, 1965 Perotrochus lucaya F. M. Bayer, 1965 Perotrochus maureri Harasewych and Askew, 1993 Perotrochus midas F. M. Beyer, 1965 Perotrochus notialis Leme, 1969 Perotrochus pyramus F. M. Bayer, 1967 Perotrochus quoyanus (P. Fischer and Bernardi, 1856) Persicula catenata (Montagu, 1803) Persicula fluctuata (C. B. Adams, 1850) Persicula pulcherrima (Gaskoin, 1849) Petalifera petalifera (Rang, 1828) Petalifera ramosa Baba, 1959 Petaloconchus compactus (Carpenter, 1864) Petaloconchus complicatus Dall, 1908 Petaloconchus contortus (Carpenter, 1856) Petaloconchus erectus (Dall, 1888) Petaloconchus flavescens (Carpenter, 1857) Petaloconchus macrophragma (Carpenter, 1856) Petaloconchus montereyensis Dall, 1919 Petaloconchus varians (d'Orbigny, 1841) Petitilla crosseana (Dall, 1885) Petricola californiensis Pilsbry and Lowe, 1932 Petricola carditoides (Conrad, 1837) Petricola hertzana Coan, 1997 Petricola lapicida (Gmelin, 1791) Petricola lithophaga (Retzius, 1786) Petricola lucasana Herlein and Strong, 1948 Petricolaria pholadiformis (Lamarck, 1818) Phalium coronadoi (Crosse, 1867) Phalium granulatum (Born, 1778) Phaseolus ovatus Sequenza, 1877 Phaxas pellucidus (Pennant, 1777) Phenacovolva piragua (Dall, 1889) Phidiana elegans (Alder and Hancock, 1845) Phidiana hiltoni (O'Donoghue, 1927) Phidiana lynceus Bergh, 1867 Phidiana pselliotes Labbe, 1923 Phidiana pugnax Lance, 1962 Philbertia purpurea Philine alba Mattox, 1958 Philine amabilis Verrill, 1880 Philine angulata Jeffreys, 1867 Philine aperta (Linnaeus, 1767) Philine auriformis Suter, 1909 Philine bakeri Dall, 1919 Philine californica Willett, 1944 Philine catena (Montagu, 1803) Philine cingulata G. O. Sars, 1878 Philine denticulata (J. Adams, 1800) Philine finmarchica M. Sars, 1858 Philine fragilis G. O. Sars, 1878 Philine infortunata Pilsbry, 1895 Philine infundibulum Dall, 1889 Philine lima (T. Brown, 1825) Philine loveni Malm, 1858 Philine polaris Aurivillius, 1885 Philine polystrigma (Dall, 1908) Philine pruinosa Philine punctata (J. Adams, 1800) Philine quadrata (S. V. Wood, 1839) Philine sagra (d'Orbigny, 1841) Philine scabra Muller, 1784 Philine sinuata Stimpson, 1851 Philine tincta A. E. Verrill, 1882 Philinoglossa helgolandica Hertling, 1932 Philinoglossa praelongata Salvivi-plawen, 1973 Philinoglossa remanei Marcus and Marcus, 1958 Philinopsis pusa (Ev. Marcus and Er. Marcus, 1967) Philippia hybrida (Linnaeus, 1758) Philippia krebsii (Morch, 1875) Philippia lutea (Lamarck, 1822) Philippia nobilis Philippia oxytropis Philippia radiata Philobrya atlantica Dall, 1895 Philobrya inconspicua Olsson and McGinty, 1958 Philobrya setosa (Carpenter, 1864) Philomycus batchi Branson, 1968 Philomycus bisdosus Branson, 1968 Philomycus carolinianus (Bosc, 1802) Philomycus flexuolaris Rafinesque, 1820 Philomycus sellatus Hubricht, 1972 Philomycus togatus (Gould, 1841) Philomycus venustus Hubricht, 1953 Philomycus virginicus Hubricht, 1953 Pholadidea loscombiana Turton, 1819 Pholas campechiensis Gmelin, 1791 Pholas dactylus Linnaeus, 1758 Pholidoteuthis adami Voss, 1956 Pholidoteuthis boschmai Adam, 1950 Phos senticosus (Linnaeus, 1758) Phreatoceras taylori (Hershler and Longley, 1986) Phreatodrobia conica Hershler and Longley, 1986 Phreatodrobia coronae Hershler and Longley, 1987 Phreatodrobia imitata Hershler and Longley, 1986 Phreatodrobia micra (Pilsbry and Ferriss, 1906) Phreatodrobia nugax (Pilsbry and Ferriss, 1906) Phreatodrobia plana Hershler and Longley, 1986 Phreatodrobia punctata Hershler and Longley, 1986 Phreatodrobia rotunda Hershler and Longley, 1986 Phyllaplysia cymodacea K. B. Clark, 1976 Phyllaplysia engeli Er. Marcus, 1955 Phyllaplysia smaragda K. B. Clark, 1977 Phyllaplysia taylori Dall, 1900 Phyllidiopsis berghi Vayssiere, 1902 Phyllidiopsis blanca Gosliner and Behrens, 1988 Phyllidiopsis papilligera Bergh, 1890 Phylliroe atlantica Bergh, 1871 Phylliroe bucephalum Peron and Lesueur, 1810 Phyllobranchillus viridis (Deshayes, 1857) Phymorhynchus alberti (Dautzenberg and Fischer, 1906) Physa carolinae Wethington, Dillon and Wise, 2009 Physa fontinalis (Linnaeus, 1758) Physa jennessi Dall, 1919 Physa megalochlamys Taylor, 1988 Physa natricina Taylor, 1988 Physa siberica Westerlund, 1876 Physa skinneri Taylor, 1954 Physa vernalis Taylor and Jokinen, 1984 Physella acuta (Draparnaud, 1805) Physella ancillaria (Say, 1825) Physella bermudezi (Aguayo, 1935) Physella bottimeri (Clench, 1924) Physella boucardi (Crosse and P. Fischer, 1881) Physella columbiana (Hemphill, 1890) Physella conoidea (P. Fischer and Crosse, 1886) Physella cooperi (Tryon, 1865) Physella costata (Newcomb, 1861) Physella cubensis (Pfeiffer, 1839) Physella globosa (Haldeman, 1841) Physella gyrina (Say, 1821) Physella hemphilli Taylor, 2003 Physella hendersoni (Clench, 1925) Physella heterostropha (Say, 1817) Physella hordacea (Lea, 1864) Physella humerosa (Gould, 1855) Physella integra (Haldeman, 1841) Physella johnsoni (Clench, 1926) Physella lordi (Baird, 1863) Physella magnalacustris (Walker, 1901) Physella mexicana (Philippi, 1841) Physella microstriata (Chamberlin and E. G. Berry, 1930) Physella osculans (Haldeman, 1841) Physella parkeri (Currier, 1881) Physella pomilia (Conrad, 1834) Physella propinqua (Tryon, 1865) Physella spelunca (Turner and Clench, 1974) Physella squalida (Morelet, 1851) Physella traski (Lea, 1864) Physella utahensis (Clench, 1925) Physella vinosa (Gould, 1848) Physella virgata (Gould, 1855) Physella virginea (Gould, 1847) Physella winnipegensis Pip, 2004 Physella wrighti Te and Clarke, 1985 Physella zionis (Pilsbry, 1926) Physunio massini (Morelet, 1864) Physunio modelli Brandt, 1974 Physunio pellucidus Pfeiffer, Graf, Cummings & Page, 2021 Physunio superbus (Lea, 1843) Phytia myosotis Say, 1822 Pickfordiateuthis pulchella Voss, 1953 Pickfordiateuthis vossi Brakoniecki, 1996 Piliscus commodus (Middendorff, 1851) Pillucina hawaiiensis Pillucina spaldingi Pilsbry, 1921 Pilsbryna aurea H. B. Baker, 1929 Pilsbryna castanea H. B. Baker, 1931 Pilsbryoconcha acuta Jeratthitikul & Prasankok in Jeratthitikul et al., 2022 Pilsbryoconcha carinifera (Conrad, 1837) Pilsbryoconcha exilis (Lea, 1838) Pilsbryoconcha expressa (Martens, 1900) Pilsbryoconcha hoikaab Jeratthitikul & Prasankok in Jeratthitikul et al., 2022 Pilsbryoconcha kittitati Jeratthitikul & Prasankok in Jeratthitikul et al., 2022 Pilsbryoconcha linguaeformis (Morelet, 1875) Pilsbryoconcha mekongiana Jeratthitikul & Prasankok in Jeratthitikul et al., 2022 Pilsbryoconcha schomburgki (Martens, 1860) Pilsbryspira albocincta (C. B. Adams, 1845) Pilsbryspira albomaculata (d'Orbigny, 1842) Pilsbryspira jayana (C. B. Adams, 1850) Pilsbryspira leucocyma (Dall, 1884) Pilsbryspira monilis (Bartsch and Rehder, 1939) Pilsbryspira zebroides (Weinkauff, 1876) Pinctada galtsoffi Pinctada imbricata Roding, 1798 Pinctada margaritifera (Linnaeus, 1758) Pinna bicolor Gmelin, 1791 Pinna carnea Gmelin, 1791 Pinna muricata Linnaeus, 1758 Pinna rudis Linnaeus, 1758 Pisania pusio (Linnaeus, 1758) Piseinotecus divae Er. Marcus, 1955 Piseinotecus evelinae Pisidium adamsi Stimpson, 1851 Pisidium amnicum (Muller, 1774) Pisidium casertanum (Poli, 1791) Pisidium compressum Prime, 1852 Pisidium conventus Clessin, 1877 Pisidium cruciatum Sterki, 1895 Pisidium dubium (Say, 1817) Pisidium equilaterale Prime, 1852 Pisidium fallax Sterki, 1896 Pisidium ferrugineum Prime, 1852 Pisidium henslowanum (Sheppard, 1825) Pisidium idahoense E. W. Roper, 1890 Pisidium insigne Gabb, 1868 Pisidium lilljeborgi (Clessin, 1886) Pisidium milium Held, 1836 Pisidium nitidum Jenyns, 1832 Pisidium punctatum Sterki, 1895 Pisidium punctiferum (Guppy, 1867) Pisidium rotundatum Prime, 1852 Pisidium sanguinichristi Taylor, 1987 Pisidium subtruncatum Malm, 1855 Pisidium supinum Schmidt, 1850 Pisidium ultramontanum Prime, 1865 Pisidium variabile Prime, 1852 Pisidium ventricosum Prime, 1851 Pisidium walkeri Sterki, 1895 Pitar albidus (Gmelin, 1791) Pitar arestus (Dall and Simpson, 1901) Pitar cordatus (Schwengel, 1951) Pitar fulminatus (Menke, 1828) Pitar morrhuanus (Linsley, 1848) Pitar newcombianus (Gabb, 1865) Pitar pilula Rehder, 1943 Pitar simpsoni (Dall, 1895) Pitar zonatus (Dall, 1902) Placida dendritica (Alder and Hancock, 1843) Placida kingstoni T. E. Thompson, 1977 Placiphorella atlantica (A. E. Verrill and S. Smith, 1882) Placiphorella borealis Pilsbry, 1893 Placiphorella mirabilis R. N. Clark, 1994 Placiphorella rufa S. S. Berry, 1917 Placiphorella stimpsoni (Gould, 1859) Placiphorella velata Dall, 1879 Placopecten magellanicus (Gmelin, 1791) Plagiocardium papillosum (Poli, 1795) Planaxis lineatus (E. M. da Costa, 1778) Planaxis nucleus (Bruguiere, 1789) Planaxis obsoletus Menke, 1851 Planaxis sulcatus Born, 1778 Planctoteuthis danae (Joubin, 1931) Planctoteuthis levimana (Lönnberg, 1896) Planctoteuthis oligobessa (Young, 1972) Planitrochus amicus Perner, 1903 Planitrochus disculus (Dall, 1889) Planktomya henseni Simroth, 1896 Planogyra asteriscus (E. S. Morse, 1857) Planogyra clappi (Pilsbry, 1898) Planorbella ammon (Gould, 1855) Planorbella binneyi (Tryon, 1867) Planorbella campanulata (Say, 1821) Planorbella columbiensis (F. C. Baker, 1945) Planorbella corpulenta (Say, 1824) Planorbella duryi (Wetherby, 1879) Planorbella magnifica (Pilsbry, 1903) Planorbella multivolvis (Case, 1847) Planorbella occidentalis (J. G. Cooper, 1870) Planorbella oregonensis (Tryon, 1865) Planorbella pilsbryi (F. C. Baker, 1926) Planorbella scalaris (Jay, 1839) Planorbella subcrenata (Carpenter, 1857) Planorbella tenuis (Dunker, 1850) Planorbella traski (Lea, 1856) Planorbella trivolvis (Say, 1817) Planorbella truncata (M. Miles, 1861) Planorbis corneus (Linnaeus, 1758) Planorbula armigera (Say, 1821) Planorbula campestris (Dawson, 1875) Platycythara elata (Dall, 1889) Platydoris angustipes (Morch, 1863) Platydoris macfarlandi Hanna, 1951 Platydoris stomascuta Bouchet, 1977 Platyodon cancellatus (Conrad, 1837) Plectodon granulatus (Dall, 1881) Plectodon scaber Carpenter, 1864 Plectomerus dombeyanus (Valenciennes in Humboldt & Bonpland, 1827) Pleiodon ovatus (Swainson, 1823) Pleiodon spekii (Woodward, 1859) Plesarionta stearnsiana (Gabb, 1867) Plesiocystiscus jewettii (Carpenter, 1856) Plesiocystiscus myrmecoon (Dall, 1919) Plesiocystiscus politulus (Dall, 1919) Plesiothyreus crenulata (Broderip, 1834) Plesiothyreus hamillei (P. Fischer, 1857) Plesiothyreus malonei (Vanatta, 1912) Plesiothyreus osculans (C. B. Adams, 1852) Plesiotrochus luteus Plethobasus cicatricosus (Say, 1829) Plethobasus cooperianus (Lea, 1834) Plethobasus cyphyus (Rafinesque, 1820) Pletholophus honglinhensis Bogan, Do, Froufe & Lopes-Lima, 2023 Pletholophus reinianus (Martens, 1875) Pletholophus tenuis (Griffith & Pidgeon, 1833) Pleurobema athearni Gangloff, Williams & Feminella, 2006 Pleurobema beadleianum (Lea, 1861) Pleurobema clava (Lamarck, 1819) Pleurobema cordatum (Rafinesque, 1820) Pleurobema curtum (Lea, 1859) Pleurobema decisum (Lea, 1831) Pleurobema fibuloides (Lea, 1859) Pleurobema georgianum (Lea, 1841) Pleurobema hanleyianum (Lea, 1852) Pleurobema hartmanianum (Lea, 1860) Pleurobema marshalli Frierson, 1927 Pleurobema oviforme (Conrad, 1834) Pleurobema perovatum (Conrad, 1834) Pleurobema plenum (Lea, 1840) Pleurobema pyriforme (Lea, 1857) Pleurobema riddellii (Lea, 1862) Pleurobema rubellum (Conrad, 1834) Pleurobema rubrum (Rafinesque, 1820) Pleurobema sintoxia (Rafinesque, 1820) Pleurobema stabile (Lea, 1861) Pleurobema strodeanum (B. H. Wright, 1898) Pleurobema taitianum (Lea, 1834) Pleurobema verum (Lea, 1861) Pleurobranchaea bonnieae Ev. Marcus and Gosliner, 1984 Pleurobranchaea californica MacFarland, 1966 Pleurobranchaea hedgpethi Abbott, 1952 Pleurobranchaea inconspicua Bergh, 1897 Pleurobranchaea tarda A. E. Verrill, 1880 Pleurobranchus areolatus Morch, 1863 Pleurobranchus membranaceus Pleurobranchus reesi White, 1952 Pleurobranchus stringi Mcfarland, 1966 Pleurocera acuta Rafinesque, 1831 Pleurocera alveare (Conrad, 1834) Pleurocera annulifera (Conrad, 1834) Pleurocera brumbyi (Lea, 1852) Pleurocera canaliculata (Say, 1821) Pleurocera corpulenta (Anthony, 1854) Pleurocera curta (Haldeman, 1841) Pleurocera foremani (Lea, 1843) Pleurocera gradata (Anthony, 1854) Pleurocera nobilis (Lea, 1845) Pleurocera parva (Lea, 1862) Pleurocera postelli (Lea, 1862) Pleurocera prasinata (Conrad, 1834) Pleurocera pyrenella (Conrad, 1834) Pleurocera showalteri (Lea, 1862) Pleurocera striatum (Lea, 1863) Pleurocera trochiformis (Conrad, 1834) Pleurocera uncialis (Haldeman, 1841) Pleurocera vestita (Conrad, 1834) Pleurocera walkeri Goodrich, 1928 Pleuromalaxis balesi (Pilsbry and McGinty, 1945) Pleuromalaxis lamellifera (Rehder, 1934) Pleuromalaxis pauli (Olsson and McGinty, 1958) Pleuromalaxis retifera (Dall, 1892) Pleuromeris armilla (Dall, 1903) Pleuromeris perplana (Conrad, 1841) Pleuromeris tridentata (Say, 1826) Pleuronaia barnesiana (Lea, 1838) Pleuronaia dolabelloides (Lea, 1840) Pleuronaia gibber (Lea, 1838) Pleuroploca gigantea (Kiener, 1840) Pleuropoma kauaiensis Pilsbry and Cooke, 1908 Pleuropoma laciniosa Mighels, 1945 Pleuropoma niilauensis Neal, 1934 Pleuropoma nonouensis Neal, 1934 Pleuropoma oahuensis Pilsbry and Cooke, 1908 Pleuropoma rotelloidea Mighels, 1845 Pleuropoma sulculosa Ancey, 1904 Pleurotomella agassizi Verrill and Smith, 1880 Pleurotomella aperta Dall, 1927 Pleurotomella aquilarium Pleurotomella atypica Pleurotomella bairdi Verrill and Smith, 1884 Pleurotomella benedicti Verrill, 1872 Pleurotomella blakeana (Dall, 1889) Pleurotomella bruneri Verrill and Smith, 1884 Pleurotomella catherinae Verrill and Smith, 1884 Pleurotomella chariessa Pleurotomella corrida Dall, 1927 Pleurotomella curta (Verrill, 1884) Pleurotomella dalli Bush, 1893 Pleurotomella emertonii Verrill and Smith, 1884 Pleurotomella engonia (Verrill, 1884) Pleurotomella eurybrocha (Dautzenberg and Fischer, 1896) Pleurotomella extensa (Dall, 1881) Pleurotomella formosa Jeffreys, 1883 Pleurotomella frielei Verrill, 1885 Pleurotomella hadria Dall, 1889 Pleurotomella herminea Dall, 1919 Pleurotomella illicita (Dall, 1927) Pleurotomella imitator (Dall, 1927) Pleurotomella lanceata (Dall, 1927) Pleurotomella leptalea Bush, 1893 Pleurotomella leucomata (Dall, 1881) Pleurotomella lineola Dall, 1927 Pleurotomella lottae Verrill, 1885 Pleurotomella lyronuclea (Dall, 1881) Pleurotomella packardii A. E. Verrill, 1872 Pleurotomella pandionis Verrill, 1880 Pleurotomella sandersoni Verrill, 1884 Pleurotomella sulcifera Bush, 1893 Pleurotomella thalassica Dall, 1919 Pleurotomella tincta Verrill, 1885 Pleurotomella tornata (Verrill, 1884) Pleurotomella vaginata Dall, 1927 Pleurotomella vitrea Verrill, 1885 Plicatula gibbosa Lamarck, 1801 Plicifusus cretaceus (Reeve, 1847) Plicifusus elaeoides Plicifusus stejnegeri Plicopurpura patula (Linnaeus, 1758) Pneumoderma mediterraneum (van Beneden, 1838) Pneumoderma violaceum (d'Orbigny, 1836) Pneumodermopsis canephora Pruvot-fol, 1924 Pneumodermopsis ciliata (Gegenbauer, 1855) Pneumodermopsis macrochira (Meisenheimer, 1905) Pneumodermopsis michaelsarsi Bonnevie, 1913 Pneumodermopsis oligocotyla Massy, 1917 Pneumodermopsis paucidens (Boas, 1886) Pneumodermopsis pupula Pruvot-fol, 1926 Pneumodermopsis teschi Spoel, 1973 Pododesmus macrochisma (Deshayes, 1839) Pododesmus patelliformis (Linnaeus, 1761) Pododesmus pernoides (J. E. Gray, 1853) Pododesmus rudis (Broderip, 1834) Poirieria bowdenensis E. H. Vokes, 1970 Poirieria nuttingi (Dall, 1896) Poirieria pazi (Crosse, 1869) Poirieria stimpsonii (Dall, 1889) Policordia alaskana (Dall, 1895) Policordia densicostata (Locard, 1898) Policordia gemma (A. E. Verrill, 1880) Policordia insculpta (Jeffreys, 1881) Policordia jeffreysi (Friele, 1879) Polinices aperinus Polinices bahamiensis (Dall, 1825) Polinices bifasciatus (Griffith and Pidgeon, 1834) Polinices draconis (Dall, 1903) Polinices duplicatus (Say, 1822) Polinices helicoides (Gray, 1825) Polinices hepaticus (Roding, 1798) Polinices heros Say, 1822 Polinices lacteus (Guilding, 1834) Polinices leptaleus Watson, 1881 Polinices monteronis Polinices nanus Moller, 1842 Polinices nubilus Dall, 1889 Polinices otis Broderip and Sowerby, 1829 Polinices politiana Polinices uber (Valenciennes, 1832) Polinices uberinus (d'Orbigny, 1842) Pollia auritula (Link, 1807) Pollia karinae (Nowell-Usticke, 1959) Pollia tincta Conrad, 1846 Polybranchia viridis (Deshayes, 1857) Polycera atra MacFarland, 1905 Polycera aurisula Er. Marcus, 1957 Polycera chilluna Er. Marcus, 1961 Polycera dubia (M. Sars, 1829) Polycera faeroensis Lemche, 1929 Polycera hedgpethi Er. Marcus, 1964 Polycera hummi Abbott, 1952 Polycera odhneri Er. Marcus, 1955 Polycera quadrilineata Muller, 1776 Polycera rycia Er. Marcus and Ev. Marcus, 1970 Polycera tricolor Robilliard, 1971 Polycera zosterae O'Donoghue, 1924 Polycerella conyna E. Marcus, 1957 Polycerella davenportii Polycerella emertoni A. E. Verrill, 1881 Polycerella glandulosa Behrens and Gosliner, 1988 Polygireulima rutila (Carpenter, 1866) Polygyra auriculata Say, 1818 Polygyra auriformis (Bland, 1859) Polygyra avara Say, 1818 Polygyra cereolus (Megerle von Muhlfeld, 1816) Polygyra chisosensis (Pilsbry, 1936) Polygyra delecta Hubricht, 1976 Polygyra deltoidea (Simpson, 1889) Polygyra dorfueilliana (I. Lea, 1838) Polygyra fastigiata (Say, 1829) Polygyra gracilis Hubricht, 1961 Polygyra hausmani Jackson, 1948 Polygyra hippocrepis (Pfeiffer, 1848) Polygyra jacksoni (Bland, 1866) Polygyra leporina (Gould, 1848) Polygyra mooreana (W. G. Binney, 1858) Polygyra peninsulae Pilsbry, 1940 Polygyra peregrina (Rehder, 1832) Polygyra plana (Dunker, 1843) Polygyra plicata (Say, 1821) Polygyra polita Pilsbry and Hinkley, 1907 Polygyra postelliana (Bland, 1859) Polygyra pustula (Say, 1821) Polygyra pustuloides (Bland, 1858) Polygyra septemvolva Say, 1818 Polygyra simpsoni (Pilsbry and Ferriss, 1907) Polygyra subclausa Pilsbry, 1940 Polygyra texasiana (Moricand, 1833) Polygyra troostiana (I. Lea, 1839) Polygyra uvulifera (Shuttleworth, 1852) Polygyrella polygyrella (Bland and J. G. Cooper, 1861) Polygyriscus virginianus (P. R. Burch, 1947) Polygyroidea harfordiana (J. G. Cooper, 1870) Polymesoda caroliniana (Bosc, 1801) Polymesoda maritima (d'Orbigny, 1842) Polyschides agassizii (Dall, 1881) Polyschides californicus (Pilsbry and Sharp, 1898) Polyschides carolinensis (Bush, 1885) Polyschides elongatus (J. B. Henderson, 1920) Polyschides grandis (A. E. Verrill, 1884) Polyschides greenlawi (Dall, 1889) Polyschides miamiensis (J. B. Henderson, 1920) Polyschides pandionis (A. E. Verrill and S. Smith, 1880) Polyschides parvus (J. B. Henderson, 1920) Polyschides quadridentatus (Dall, 1881) Polyschides rushii (Pilsbry and Sharp, 1898) Polyschides spectabilis (A. E. Verrill, 1885) Polyschides tetraschistus (Watson, 1879) Polyschides tetrodon (Pilsbry and Sharp, 1898) Polyschides tolmiei (Dall, 1897) Polyschides watsoni (Dall, 1881) Polystira albida (G. Perry, 1811) Polystira florencae Bartsch, 1934 Polystira sunderlandi Petuch, 1987 Polystira tellea (Dall, 1889) Polystira vibex (Dall, 1889) Pomacea bridgesii (Reeve, 1856) Pomacea canaliculata (Lamarck, 1822) Pomacea haustrum (Reeve, 1858) Pomacea paludosa (Say, 1829) Pomacea urceus (Muller, 1774) Pomatiopsis binneyi Tryon, 1863 Pomatiopsis californica Pilsbry, 1899 Pomatiopsis chacei Pilsbry, 1937 Pomatiopsis cincinnatiensis (Lea, 1840) Pomatiopsis hinkleyi Pilsbry, 1896 Pomatiopsis lapidaria (Say, 1817) Popenaias berezai Inoue, Cummings, Tiemann, Miller, Johnson, Smith & Randklev, 2020 Popenaias metallica (Say, 1831) Popenaias popeii (Lea, 1857) Popenaias semirasa (Pilsbry, 1910) Popenaias tehuantepecensis (Crosse & Fischer, 1893) Poromya albida Dall, 1886 Poromya beringiana (Dall, 1916) Poromya elongata Dall, 1886 Poromya granulata (Nyst and Westendorp, 1839) Poromya houbricki Bernard, 1989 Poromya leonina (Dall, 1916) Poromya malespinae (Ridewood, 1903) Poromya neaeroides Sequenza, 1876 Poromya rostrata Rehder, 1943 Poromya tenuiconcha (Dall, 1913) Poromya tornata (Jeffreys, 1876) Poromya trosti Strong and Hertlein, 1937 Portlandia aestuariorum (Mosevich, 1928) Portlandia arctica (J. E. Gray, 1824) Portlandia beringii Portlandia dalli Krause, 1885 Portlandia fraterna (Verrill and Bush, 1898) Portlandia frigida (Torell, 1859) Portlandia glacialis (Gray, 1828) Portlandia inconspicua (Verrill and Bush, 1898) Portlandia inflata (Verrill and Bush, 1897) Portlandia intermedia (M. Sars, 1865) Portlandia iris (Verrill and Bush, 1897) Portlandia jeffreysi (Hildago, 1879) Portlandia lenticula (Moller, 1842) Portlandia lucida (Loven, 1846) Portlandia minuscula (Verrill and Bush, 1898) Portlandia sericea Portlandia subangulata (Verrill and Bush, 1898) Portlandia tamara Potamilus alatus (Say, 1817) Potamilus amphichaenus (Frierson, 1898) Potamilus capax (Green, 1832) Potamilus fragilis (Rafinesque, 1820) Potamilus inflatus (Lea, 1831) Potamilus leptodon (Rafinesque, 1820) Potamilus metnecktayi R. I. Johnson, 1998 Potamilus ohiensis (Rafinesque, 1820) Potamilus purpuratus (Lamarck, 1819) Potamilus streckersoni Smith, Johnson, Inoue, Doyle & Randklev, 2019 Potamocorbula amurensis (Schrenck, 1861) Potamopyrgus antipodarum (J. E. Gray, 1853) Potomida acarnanica (Kobelt, 1879) Potomida littoralis (Cuvier, 1798) Potomida semirugata (Lamarck, 1819) Powellsetia fallax Praticolella bakeri Vanatta, 1915 Praticolella berlandieriana (Moricand, 1833) Praticolella candida Hubricht, 1983 Praticolella griseola (Pfeiffer, 1841) Praticolella jejuna (Say, 1821) Praticolella lawae (J. Lewis, 1874) Praticolella mobiliana (I. Lea, 1841) Praticolella pachyloma (Menke, 1847) Praticolella taeniata Pilsbry, 1940 Praticolella trimatris Hubricht, 1983 Precuthona divae (Mcfarland, 1966) Precuthona peachi Pressidens exanthematicus (Küster, 1861) Pressodonta viridis (Rafinesque, 1820) Primovula solemi Cate, 1973 Prionoglossa tetrabranchiata (Bonnevie, 1913) Prisodon obliquus Schumacher, 1817 Prisodon syrmatophorus (Meuschen in Gronovius, 1781) Prisodontopsis aviculaeformis F. R. Woodward, 1991 Prisodontopsis mweruensis (E. A. Smith, 1908) Pristes oblongus Carpenter, 1864 Pristigloma alba Saunders and Allen, 1973 Pristigloma minima (Sequenza, 1873) Pristigloma nitens (Jeffreys, 1876) Pristiloma arcticum (Lehnert, 1884) Pristiloma chersinella (Dall, 1886) Pristiloma gabrielinum (S. S. Berry, 1924) Pristiloma idahoense Pilsbry, 1902 Pristiloma johnsoni (Dall, 1895) Pristiloma juniperum A. G. Smith, 1957 Pristiloma lansingi (Bland, 1875) Pristiloma nicholsoni H. B. Baker, 1930 Pristiloma orotis (S. S. Berry, 1930) Pristiloma pilsbryi Vanatta, 1899 Pristiloma shepardae (Hemphill, 1892) Pristiloma stearnsi (Bland, 1875) Pristiloma subrupicola (Dall, 1877) Pristiloma wascoense (Hemphill, 1911) Pristinicola hemphilli (Pilsbry, 1890) Problacmaea apicina (Dall, 1879) Problacmaea moskalevi Golikov and Kussakin, 1972 Problacmaea rubella (Fabricius, 1780) Problacmaea sybaritica (Dall, 1872) Probythinella emarginata (Kuster, 1852) Probythinella protera Pilsbry, 1953 Prochaetoderma californicum Schwabl, 1963 Prochaetoderma yongei Proctonotus mucroniferus (Adler and Hancock, 1844) Prohyriopsis stolata (Martens, 1900) Prolasmidonta heterodon (Lea, 1829) Promachoteuthis megaptera Hoyle, 1885 Promenetus exacuous (Say, 1821) Promenetus umbilicatellus (Cockerell, 1887) Proneomenia acuminata Heath, 1918 Proneomenia sluiteri Pronodularia japanensis (Lea, 1859) Propeamussium cancellatum (E. A. Smith, 1885) Propeamussium ceciliae Gregorio, 1884 Propeamussium dalli (E. A. Smith, 1886) Propeamussium davidsoni (Dall, 1897) Propeamussium holmesii (Dall, 1886) Propeamussium lucidum (Jeffreys, 1873) Propeamussium malpelonium Propeamussium mendionale Propeamussium pourtalesianum (Dall, 1886) Propeamussium sayanum (Dall, 1886) Propeamussium squamigerum (E. A. Smith, 1886) Propeamussium thalassinum (Dall, 1886) Propebela alitakensis (Dall, 1919) Propebela angulosa (G. O. Sars, 1878) Propebela arctica (A. Adams, 1855) Propebela assimilis (G. O. Sars, 1878) Propebela concinnula (A. E. Verrill, 1882) Propebela exarata (Moller, 1842) Propebela fidicula (Gould, 1849) Propebela harpularia (Couthouy, 1838) Propebela mitrata (Dall, 1919) Propebela nobilis (Moller, 1842) Propebela pingelii (Moller, 1842) Propebela popovia (Dall, 1919) Propebela rassina (Dall, 1919) Propebela rugulata (Moller, 1866) Propebela scalaris (Moller, 1842) Propebela turricula (Montagu, 1803) Prophysaon andersoni (J. G. Cooper, 1872) Prophysaon boreale Pilsbry, 1948 Prophysaon coeruleum Cockerell, 1890 Prophysaon dubium Cockerell, 1890 Prophysaon fasciatum Cockerell, 1890 Prophysaon foliolatum (Gould, 1851) Prophysaon humile Cockerell, 1890 Prophysaon obscurum Cockerell, 1890 Prophysaon vanattae Pilsbry, 1948 Propilidium ancyloides (Fairmaire, 1881) Propilidium elegans (Verrill, 1884) Propilidium exiguum (Thompson, 1844) Propilidium lissocona (Dall, 1927) Propilidium pertenue Jeffreys, 1882 Propilidium reticulatum (A. E. Verrill, 1885) Propustularia surinamensis (G. Perry, 1811) Protatlanta souleyeti (E. A. Smith, 1888) Proterato gemma (Bavay, 1917) Protocuspidaria atlantica Allen and Morgan, 1981 Protothaca asperrima (Sowerby, 1835) Protothaca granulata (Gmelin, 1791) Protothaca grata (Say, 1830) Protothaca laciniata (Carpenter, 1864) Protothaca metodon (Pilsbry and Lowe, 1932) Protothaca pectorina (Lamarck, 1818) Protothaca staminea (Conrad, 1837) Protothaca tenerrima (Carpenter, 1857) Protothaca thaca (Molina, 1782) Protunio messageri (Bavay & Dautzenberg, 1901) Prunum amabile (Redfield, 1852) Prunum apicinum (Menke, 1828) Prunum avenaceum (Deshayes, 1844) Prunum boreale (A. E. Verrill, 1884) Prunum carneum (Storer, 1837) Prunum cassis (Dall, 1889) Prunum evelynae (Bayer, 1943) Prunum guttatum (Dillwyn, 1817) Prunum nobilianum Bayer, 1943 Prunum roosevelti (Bartsch and Rehder, 1939) Prunum roscidum (Redfield, 1860) Prunum succinea (Conrad, 1846) Prunum torticulum (Dall, 1881) Prunum virginianum Conrad, 1868 Psammodoris thompsoni (Millen and Nybakken, 1987) Psammotreta aurora (Hanley, 1844) Psammotreta cognata (Pilsbry and Vanatta, 1902) Psammotreta intastriata (Say, 1827) Psammotreta obesa (Deshayes, 1855) Pseudacteon tenellus (Loven, 1846) Pseudanodonta complanata (Rossmässler, 1835) Pseudobaphia aurea (Heude, 1885) Pseudobaphia banggiangensis Bogan & Do, 2018 Pseudobaphia biesiana (Heude, 1877) Pseudochama exogyra (Conrad, 1837) Pseudochama granti Strong, 1934 Pseudochama inezae Bayer, 1943 Pseudochama radians (Lamarck, 1819) Pseudococulina rugosoplicata Schepman, 1908 Pseudocuneopsis capitata (Heude, 1874) Pseudocuneopsis sichuanensis Huang, Dai, Chen & Wu in Wu et al., 2022 Pseudocuneopsis wuana Liu & Wu in Liu et al., 2023 Pseudocuneopsis yangshuoensis Wu & Liu in Wu et al., 2023 Pseudocyphoma gibbulum Cate, 1978 Pseudocyphoma intermedium (G. B. Sowerby I, 1828) Pseudocyphoma pyrifera Cate, 1973 Pseudocyphoma siphoni Cate, 1973 Pseudocyphoma vanhyningi (M. Smith, 1940) Pseudodiala acuta (Carpenter, 1864) Pseudodon aeneolus Drouët & Chaper, 1892 Pseudodon avae (Theobald, 1873) Pseudodon cambodjensis (Petit de la Saussaye, 1865) Pseudodon inoscularis (Gould, 1844) Pseudodon lenyanensis (Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020) Pseudodon mekongi (Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020) Pseudodon nicobaricus (Mörch, 1872) Pseudodon thomsoni Morlet, 1884 Pseudodon vagulus (Fischer, 1891) Pseudodon vondembuschianus (Lea, 1840) Pseudodon walpolei (Hanley, 1871) Pseudodontoideus connasaugaensis (Lea, 1858) Pseudodontoideus subvexus (Conrad, 1834) Pseudodontopsis euphraticus (Bourguignat, 1852) Pseudoliomesus ooides (Middendorff, 1848) Pseudomalaxis centrifuga De Monterosata, 1890 Pseudomalaxis clenchi Jaume and Borro, 1946 Pseudomalaxis lamellifera Rehder, 1935 Pseudomalaxis nobilis A. E. Verrill, 1885 Pseudomalaxis zanclaeus (Philippi, 1844) Pseudomelatoma eburnea (Carpenter, 1865) Pseudomelatoma grippi (Dall, 1919) Pseudomelatoma penicillata (Carpenter, 1865) Pseudomelatoma sticta S. S. Berry, 1956 Pseudomelatoma torosa (Carpenter, 1864) Pseudomiltha floridana (Conrad, 1833) Pseudomiltha tixierae Klein, 1967 Pseudomulleria dalyi (E.A. Smith, 1898) Pseudopythina compressa Pseudopythina macandrewi (P. Fischer, 1867) Pseudopythina rugifera Pseudosabinella bakeri (Bartsch, 1917) Pseudoscilla decorata (de Folin, 1873) Pseudosimnia pyrifera Cate, 1973 Pseudosimnia sphoni Cate, 1973 Pseudosimnia vanhyningi (M. Smith, 1940) Pseudospatha tanganyicensis (E. A. Smith, 1880) Pseudostomatella coccinea (A. Adams, 1850) Pseudostomatella erythrocoma (Dall, 1889) Pseudostomatella papyraceus Gmelin, 1791 Pseudosubulina cheatumi Pilsbry, 1950 Pseudosuccinea columella (Say, 1817) Pseudotaranis hyperia (Dall, 1919) Pseudotaranis strongi (Arnold, 1903) Pseudotorinia architae (O. G. Costa, 1841) Pseudotorinia bullisi Bieler, Merrill and Boss, 1985 Pseudotryonia adamantina (Taylor, 1987) Pseudotryonia alamosae (Taylor, 1987) Pseudotryonia brevissima (Pilsbry, 1890) Pseudotryonia grahamae F. G. Thompson, 2001 Pseudovermis boadeni Salvini-plawen and Sterrer, 1868 Pseudovermis papillifera Kowalevsky, 1901 Pseudunio auricularius (Spengler, 1793) Pseudunio homsensis (Lea, 1865) Pseudunio marocanus (Pallary, 1918) Psilaxis krebsii (Morch, 1875) Psiloteredo dilitata (Stimpson, 1851) Psiloteredo megotara (Hanley, 1848) Psiloteredo nana Turton, 1822 Psoronaias distincta (Crosse & Fischer, 1893) Psoronaias guatemalensis (Simpson, 1900) Psoronaias herrerae (Marshall, 1923) Psoronaias kuxensis Frierson, 1917 Psoronaias martensi Frierson, 1927 Psoronaias ostreata (Morelet, 1849) Psoronaias percompressa (Martens, 1887) Psoronaias profunda (Simpson, 1914) Psoronaias quadrata (Simpson, 1914) Psoronaias salinarum (Haas, 1929) Psoronaias semigranosa (von dem Busch in Philippi, 1843) Psoronaias usumasintae (Crosse & Fischer, 1892) Psychroteuthis glacialis Thiele, 1920 Pteria colymbus (Roding, 1798) Pteria hirundo (Linnaeus, 1758) Pteria longisquamosa (Dunker, 1852) Pteria sterna (Gould, 1851) Pteria vitrea (Reeve, 1857) Pterochelus ariomus (Clench and Perez-farfonte, 1945) Pteroctopus eurycephala (Taki, 1964) Pteroctopus hoylei (Berry, 1909) Pteroctopus schmidti (Joubin, 1933) Pteroctopus tetracirrhus (Chiaie, 1830 in 1823-1831) Pteroctopus witjazi Akimushkin, 1963 Pteromeris perplana (Conrad, 1841) Pteropurpura bequaerti (Clench and Perez Farfante, 1945) Pteropurpura festiva (Hinds, 1844) Pteropurpura macroptera (Deshayes, 1839) Pteropurpura trialata (G. B. Sowerby II, 1834) Pteropurpura vokesae Emerson, 1964 Pterotrachea coronata Forskal, 1775 Pterotrachea hippocampus Philippi, 1836 Pterotrachea keraudrenii J. E. Gray, 1850 Pterotrachea minuta Pterotrachea scutata Gegenbaur, 1855 Pterotyphis triangularis (A. Adams, 1855) Pterygioteuthis gemmata Chun, 1908 Pterygioteuthis giardi Fischer, 1896 Pterygioteuthis microlampas Berry, 1913 Pterynotus ariomus (Clench and Perez Farfante, 1945) Pterynotus macleani Emerson and D'attilio, 1968 Pterynotus phaneus (Dall, 1889) Pterynotus phillipsi E. H. Vokes, 1966 Pterynotus phyllopterus (Lamarck, 1822) Pterynotus pinniger (Broderip, 1833) Ptychatractus ligatus (Mighels and C. B. Adams, 1842) Ptychatractus occidentalis Stearns, 1873 Ptychobranchus fasciolaris (Rafinesque, 1820) Ptychobranchus foremanianus (Lea, 1842) Ptychobranchus greenii (Conrad, 1834) Ptychobranchus jonesi (van der Schalie, 1934) Ptychobranchus occidentalis (Conrad, 1836) Ptychobranchus subtentus (Say, 1825) Ptychorhynchus denserugata (Haas, 1910) Ptychorhynchus liuovatus (He & Zhuang, 2013) Ptychorhynchus murinum (Heude, 1883) Ptychorhynchus pfisteri (Heude, 1874) Ptychorhynchus resupinatus (Martens, 1902) Ptychorhynchus schoedei (Haas, 1930) Ptychorhynchus schomburgianum (Heude, 1885) Ptychosalpinx globulus (Dall, 1889) Puberella intapurpurea (Conrad, 1849) Puberella pubera (Bory Saint-Vincent, 1827) Pugnus lachrimula (Gould, 1862) Pugnus serrei (Bavay, 1911) Pulsellum aberrans (Whiteaves, 1887) Pulsellum lobatum (G. B. Sowerby II, 1860) Pulsellum lofotense (M. Sars, 1865) Pulsellum occidentale (J. B. Henderson, 1920) Pulsellum salishorum E. Marshall, 1980 Pulsellum verrilli (J. B. Henderson, 1920) Pulvinites adansoni De France, 1824 Punctum blandianum Pilsbry, 1900 Punctum californicum Pilsbry, 1898 Punctum conspectum (Bland, 1865) Punctum hannai Roth, 1985 Punctum minutissimum (I. Lea, 1841) Punctum randolphi (Dall, 1895) Punctum smithi Morrison, 1935 Punctum vitreum (H. B. Baker, 1930) Puncturella abyssicola Verrill, 1885 Puncturella acuminata Watson, 1883 Puncturella agger Watson, 1883 Puncturella antillana Farfante, 1947 Puncturella asturiana (P. Fischer, 1882) Puncturella billsae Perex Farfante, 1947 Puncturella borroi Farfante, 1947 Puncturella brychia Watson, 1883 Puncturella caryophylla Dall, 1914 Puncturella circularis Dall, 1881 Puncturella cooperi Carpenter, 1864 Puncturella cucullata (Gould, 1846) Puncturella decorata I. M. Cowan and J. H. Mclean, 1968 Puncturella erecta Dall, 1889 Puncturella expansa (Dall, 1896) Puncturella galeata (Gould, 1846) Puncturella larva Dall, 1927 Puncturella longifissa Dall, 1914 Puncturella major Dall, 1891 Puncturella multistriata Dall, 1914 Puncturella noachina (Linnaeus, 1771) Puncturella oxia Watson, 1883 Puncturella pacifica Cowan, 1969 Puncturella pauper Dall, 1927 Puncturella plecta Watson, 1883 Puncturella profundi Jeffreys, 1877 Puncturella punctocostata S. S. Berry, 1947 Puncturella rothi McLean, 1984 Puncturella sportella Watson, 1882 Puncturella tenuicola Dall, 1927 Puncturella trifolium Dall, 1881 Pupa pudica Pupa tessellata Puperita pupa (Linnaeus, 1767) Pupilla blandi E. S. Morse, 1865 Pupilla hebes (Ancey, 1881) Pupilla muscorum (Linnaeus, 1758) Pupilla sonorana (Sterki, 1899) Pupilla syngenes (Pilsbry, 1890) Pupisoma dioscoricola (C. B. Adams, 1845) Pupisoma macneilli (G. H. Clapp, 1918) Pupisoma minus Pilsbry, 1920 Pupoides albilabris (C. B. Adams, 1841) Pupoides hordaceus (Gabb, 1866) Pupoides inornatus Vanatta, 1915 Pupoides modicus (Gould, 1848) Purpura patula (Linnaeus, 1758) Pusillina inconspicua (Alder, 1844) Pusillina pseudoareolata (Waren, 1974) Pusillina sarsi (Loven, 1846) Pusillina turrita (Monterosato, 1890) Pustulosa archeri (Frierson, 1905) Pustulosa infucata (Conrad, 1834) Pustulosa kieneriana (Lea, 1852) Pustulosa kleiniana (Lea, 1852) Pustulosa necki (Burlakova, Karatayev, Lopes-Lima & Bogan in Burlakova et al., 2018) Pustulosa nodulata (Rafinesque, 1820) Pustulosa petrina (Gould, 1855) Pustulosa pustulosa (Lea, 1831) Pustulosa succissa (Lea, 1852) Pusula californiana (J. E. Gray, 1827) Pusula californica (G. B. Sowerby II, 1832) Pusula maltbiana (Schwengel and McGinty, 1942) Pusula padreserrai Cate, 1979 Pycnodonte fischeri Dall, 1914 Pycnodonte hyotis (Linnaeus, 1758) Pyganodon cataracta (Say, 1817) Pyganodon fragilis (Lamarck, 1819) Pyganodon gibbosa (Say, 1824) Pyganodon grandis (Say, 1829) Pyganodon lacustris (Lea, 1857) Pyramidella adamsi (Carpenter, 1864) Pyramidella bicolor Pyramidella camara Pyramidella candida Morch, 1875 Pyramidella crassula Forbes, 1843 Pyramidella crenulata (Holmes, 1860) Pyramidella dolabrata (Linnaeus, 1758) Pyramidella fusca Pyramidella lissa Pyramidella mazatlantica Dall and Bartsch, 1909 Pyramidella mexicana Dall and Bartsch, 1909 Pyramidella resticula (Dall, 1889) Pyramidella subdolabrata Pyramidella terebellum Muller, 1886 Pyramidella unifasciata Forbes, 1843 Pyramidella ventricosa Forbes, 1843 Pyrgocythara balteata (Reeve, 1846) Pyrgocythara canoidissima (C. B. Adams, 1845) Pyrgocythara densestriata (C. B. Adams, 1850) Pyrgocythara dubia Pyrgocythara filosa Rehder, 1943 Pyrgocythara hemphilli Bartsch and Rehder, 1939 Pyrgocythara metria (Dall, 1903) Pyrgocythara plicosa (C. B. Adams, 1850) Pyrgophorus parvulus (Guilding, 1828) Pyrgophorus platyrachis F. G. Thompson, 1968 Pyrgophorus spinosus (Call and Pilsbry, 1886) Pyrgospira obeliscus (Reeve, 1843) Pyrgospira ostrearum (Stearns, 1872) Pyrgospira tampaensis (Bartsch and Rehder, 1939) Pyrgulina edgarii Melvill, 1897 Pyrgulina epentroma Melvill, 1897 Pyrgulina maiae Hornung and Mermod, 1924 Pyrgulina melvilli Dautz. et Fischer, 1906 Pyrgulina oodes Pyrgulina purpaeformis Souverbie, 1865 Pyrgulina ventricosa Horning and Mermod, 1925 Pyrgulopsis aardahli Hershler, 1989 Pyrgulopsis aloba Hershler, 1998 Pyrgulopsis amargosae Hershler, 1989 Pyrgulopsis anatina Hershler, 1998 Pyrgulopsis anguina Hershler, 1998 Pyrgulopsis archimedis S. S. Berry, 1947 Pyrgulopsis arizonae (Taylor, 1987) Pyrgulopsis augustae Hershler, 1998 Pyrgulopsis aurata Hershler, 1998 Pyrgulopsis avernalis (Pilsbry, 1935) Pyrgulopsis bacchus Hershler, 1988 Pyrgulopsis basiglans Hershler, 1998 Pyrgulopsis bedfordensis Hershler and Gustafson, 2001 Pyrgulopsis bernardina (Taylor, 1987) Pyrgulopsis bifurcata Hershler, 1998 Pyrgulopsis blainica Hershler, Liu and Gustafson, 2008 Pyrgulopsis breviloba Hershler, 1998 Pyrgulopsis bruesi Hershler and Sada, 2000 Pyrgulopsis bruneauensis Hershler, 1990 Pyrgulopsis bryantwalkeri Hershler, 1994 Pyrgulopsis californiensis (Gregg and Taylor, 1965) Pyrgulopsis carinata Hershler, 1998 Pyrgulopsis carinifera (Pilsbry, 1935) Pyrgulopsis castaicensis Hershler and Liu, 2010 Pyrgulopsis chamberlini Hershler, 1998 Pyrgulopsis chupaderae Taylor, 1987 Pyrgulopsis cinerana Hershler, Frest, Liu and Johannes, 2003 Pyrgulopsis coloradensis Hershler, 1998 Pyrgulopsis conica Hershler, 1988 Pyrgulopsis cruciglans Hershler, 1998 Pyrgulopsis crystalis Hershler and Sada, 1987 Pyrgulopsis cybele Hershler and Liu, 2012 Pyrgulopsis davisi (Taylor, 1987) Pyrgulopsis deaconi Hershler, 1998 Pyrgulopsis deserta (Pilsbry, 1916) Pyrgulopsis diablensis Hershler, 1995 Pyrgulopsis dixiensis Hershler, 1998 Pyrgulopsis eremica Hershler, 1995 Pyrgulopsis erythropoma (Pilsbry, 1899) Pyrgulopsis fairbanksensis Hershler and Sada, 1987 Pyrgulopsis falciglans Hershler, Frest, Liu and Johannes, 2003 Pyrgulopsis fausta Hershler, 1998 Pyrgulopsis fresti Hershler and Liu, 2009 Pyrgulopsis fusca Hershler, 1998 Pyrgulopsis gibba Hershler, 1995 Pyrgulopsis gilae (Taylor, 1987) Pyrgulopsis giuliani Hershler and Pratt, 1990 Pyrgulopsis glandulosa Hershler, 1988 Pyrgulopsis gracilis Hershler, 1998 Pyrgulopsis greggi Hershler, 1995 Pyrgulopsis hamlinensis Hershler, 1998 Pyrgulopsis hovinghi Hershler, 1998 Pyrgulopsis hualapaiensis Hershler, Liu and Stevens, 2016 Pyrgulopsis hubbsi Hershler, 1998 Pyrgulopsis humboldtensis Hershler, 1998 Pyrgulopsis ignota Hershler, Liu and Lang, 2010 Pyrgulopsis imperialis Hershler, 1998 Pyrgulopsis inopinata Hershler, 1998 Pyrgulopsis intermedia (Tryon, 1865) Pyrgulopsis isolata Hershler and Sada, 1987 Pyrgulopsis kolobensis (Taylor, 1987) Pyrgulopsis landyei Hershler, 1998 Pyrgulopsis lasseni Hershler, Frest, Liu and Johannes, 2003 Pyrgulopsis lata Hershler, 1998 Pyrgulopsis lentiglans Hershler, 1998 Pyrgulopsis leporina Hershler, 1998 Pyrgulopsis limaria Hershler, 1998 Pyrgulopsis lindae Hershler, Liu, Babbitt, Kellogg and Howard, 2016 Pyrgulopsis lindahlae Hershler, Liu, Forsythe, Hovingh and Wheeler, 2017 Pyrgulopsis lockensis Hershler, 1998 Pyrgulopsis longae Hershler, 1995 Pyrgulopsis longiglans Hershler, 1998 Pyrgulopsis longinqua (Gould, 1855) Pyrgulopsis marcida Hershler, 1998 Pyrgulopsis marilynae Hershler, Ratcliffe, Liu, Lang and Hay, 2014 Pyrgulopsis merriami (Pilsbry and Beecher, 1892) Pyrgulopsis metcalfi (Taylor, 1987) Pyrgulopsis micrococcus (Pilsbry, 1893) Pyrgulopsis militaris Hershler, 1998 Pyrgulopsis millenaria Hershler, 1998 Pyrgulopsis milleri Hershler and Liu, 2010 Pyrgulopsis montana Hershler, 1998 Pyrgulopsis montezumensis Hershler, 1988 Pyrgulopsis morrisoni Hershler, 1988 Pyrgulopsis nanus Hershler and Sada, 1987 Pyrgulopsis neomexicana (Pilsbry, 1916) Pyrgulopsis neritella Hershler, 1998 Pyrgulopsis nevadensis (Stearns, 1883) Pyrgulopsis nonaria Hershler, 1998 Pyrgulopsis notidicola Hershler, 1998 Pyrgulopsis nuwuvi Hershler, Liu, Forsythe, Hovingh and Wheeler, 2017 Pyrgulopsis ojaiensis Hershler, Liu, Babbitt, Kellogg and Howard, 2016 Pyrgulopsis orbiculata Hershler, 1998 Pyrgulopsis owensensis Hershler, 1989 Pyrgulopsis owyheensis Hershler and Liu, 2009 Pyrgulopsis papillata Hershler, 1998 Pyrgulopsis pecosensis (Taylor, 1987) Pyrgulopsis peculiaris Hershler, 1998 Pyrgulopsis pellita Hershler, 1998 Pyrgulopsis perturbata Hershler, 1989 Pyrgulopsis pictilis Hershler, 1998 Pyrgulopsis pilsbryana (J. L. Baily and R. I. Baily, 1952) Pyrgulopsis pisteri Hershler and Sada, 1987 Pyrgulopsis planulata Hershler, 1998 Pyrgulopsis plicata Hershler, 1998 Pyrgulopsis robusta (Walker, 1908) Pyrgulopsis roswellensis (Taylor, 1987) Pyrgulopsis ruinosa Hershler, 1998 Pyrgulopsis rupinicola Hershler, Frest, Liu and Johannes, 2003 Pyrgulopsis sadai Hershler, 1998 Pyrgulopsis santaclarensis Hershler, Liu, Forsythe, Hovingh and Wheeler, 2017 Pyrgulopsis sathos Hershler, 1998 Pyrgulopsis saxatilis Hershler, 1998 Pyrgulopsis serrata Hershler, 1998 Pyrgulopsis similis Hershler, Ratcliffe, Liu, Lang and Hay, 2014 Pyrgulopsis simplex Hershler, 1988 Pyrgulopsis sola Hershler, 1988 Pyrgulopsis stearnsiana (Pilsbry, 1899) Pyrgulopsis sterilis Hershler, 1998 Pyrgulopsis sublata Hershler, 1998 Pyrgulopsis sulcata Hershler, 1998 Pyrgulopsis taylori Hershler, 1995 Pyrgulopsis texana (Pilsbry, 1935) Pyrgulopsis thermalis (Taylor, 1987) Pyrgulopsis thompsoni Hershler, 1988 Pyrgulopsis torrida Hershler, Liu, Babbitt, Kellogg and Howard, 2016 Pyrgulopsis transversa Hershler, 1998 Pyrgulopsis trivialis (Taylor, 1987) Pyrgulopsis turbatrix Hershler, 1998 Pyrgulopsis umbilicata Hershler, 1998 Pyrgulopsis variegata Hershler, 1998 Pyrgulopsis varneri Heshler, Liu and Sada, 2007 Pyrgulopsis ventricosa Hershler, 1995 Pyrgulopsis villacampae Hershler, 1998 Pyrgulopsis vinyardi Hershler, 1998 Pyrgulopsis wongi Hershler, 1989 Pyroteuthis addolux Young, 1972 Pyroteuthis margaritifera (Rüppell, 1844) Pyroteuthis serrata Riddell, 1985 Pyrulofusus deformis (Reeve, 1847) Pyrulofusus dexius (Dall, 1907) Pyrulofusus harpa (Mörch, 1857) Pyrulofusus melonis (Dall, 1891) Pyrunculus caelatus (Bush, 1885) Pyrunculus conulus (Deshayes, 1832) Pyrunculus ovatus (Jeffreys, 1871) Pythinella cuneata (A. E. Verrill and Bush, 1898) Quadrula couchiana (Lea, 1860) Quadrula fragosa (Conrad, 1836) Quadrula nobilis (Conrad, 1854) Quadrula quadrula (Rafinesque, 1820) Quadrula verrucosa (Rafinesque, 1820) Quasicorambe pacifica (MacFarland and O'Donoghue, 1929) Quidnipagus palatam (Iredale, 1929) Quoyula kalafuti Petuch, 1987 Rabdotus alternatus (Say, 1830) Rabdotus dealbatus (Say, 1821) Rabdotus mooreanus (Pfeiffer, 1868) Rabdotus nigromontanus (Dall, 1897) Rabdotus pilsbryi (Ferriss, 1925) Radiatula chaudhurii (Preston, 1912) Radiatula chindwinensis Bolotov, Konopleva, Vikhrev, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova, Gofarov et al., 2019 Radiatula crispisulcata (Benson, 1862) Radiatula kachinensis Bolotov, Konopleva, Chan, Lunn, Win, Gofarov, Kondakov, Tomilova & Vikhrev, 2022 Radiatula mouhoti Vikhrev, Bolotov & Konopleva in Bolotov et al., 2017 Radiatula myitkyinae (Prashad, 1930) Radiatula myitthanensis Bolotov, Konopleva, Vikhrev, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova, Gofarov et al., 2019 Radiocentrum avalonense (Hemphill, 1905) Radiocentrum chiricahuanum (Pilsbry, 1905) Radiocentrum clappi (Ferriss, 1904) Radiocentrum ferrissi (Pilsbry, 1915) Radiocentrum hachetanum (Pilsbry, 1915) Radiodiscus abietum H. B. Baker, 1930 Radiodiscus millecostatus Pilsbry and Ferriss, 1906 Radix auricularia (Linnaeus, 1758) Radix peregra (Müller, 1774) Raeta plicatella (Lamarck, 1818) Raeta undulata (Gould, 1851) Rangia cuneata (G. B. Sowerby I, 1831) Rangia flexuosa (Conrad, 1840) Raphitoma boothii (Brown, 1839) Raphitoma echinata (Brocchi, 1814) Raphitoma linearis (Montagu, 1803) Raphitoma purpurea (Montagu, 1803) Recluzia rollandiana Petit de la Saussaye, 1853 Rectidens sumatrensis (Dunker, 1852) Reginaia apalachicola (Williams & Fradkin, 1999) Reginaia ebenus (Lea, 1831) Reginaia rotulata (B. H. Wright, 1899) Reticulatus elvae (Walker, 1924) Reticulatus reticulatus (Simpson, 1900) Retilaskeya bicolor (C. B. Adams, 1845) Retimohnia caelata (Verrill and Smith, 1880) Retimohnia carolinensis (Verrill, 1884) Retimohnia clementinus (Dall, 1919) Retimohnia robusta (Dall, 1913) Retimohnia vernalis (Dall, 1913) Retusa alba Retusa mayoi (Dall, 1889) Retusa montereyensis A. G. Smith and M. Gordon, 1948 Retusa obtusa (Montagu, 1803) Retusa ovata Retusa semen (Reeve, 1855) Retusa sulcata (d'Orbigny, 1841) Retusa truncatula Retusa umbilicata (Montagu, 1803) Retusa xystrum Dall, 1919 Rhabdus dalli (Pilsbry and Sharp, 1897) Rhabdus rectius (Carpenter, 1865) Rhabdus watsoni (Sharp and Pilsbry, 1897) Rhamphidonta retifera (Dall, 1899) Rhapinema dacryon F. G. Thompson, 1969 Rhinodiaphana ventricosa (Jeffreys, 1865) Rhodacmea cahawbensis (Walker, 1917) Rhodacmea elatior (Anthony, 1855) Rhodacmea filosa (Conrad, 1834) Rhodacmea hinkleyi (Walker, 1908) Rhodope veranyi Rhodopetala rosea (Dall, 1872) Rhodopetoma diaulax (Dall, 1908) Rhodopetoma renaudi (Arnold, 1903) Rhodopetoma rhodope (Dall, 1919) Rhombinella laevigata (Linnaeus, 1758) Rhomboidella prideaux (Leach, 1915) Rhombuniopsis fultoni Moskvicheva & Starobogatov, 1973 Rhombuniopsis superstes (Neumayr, 1899) Rhombuniopsis tauriformis (Fulton, 1906) Rhopalomenia aglaopheniae (Kowalevsky and Marion, 1887) Rictaxis painei (Dall, 1903) Rictaxis punctocaelatus (Carpenter, 1864) Rictaxis punctostriatus (C. B. Adams, 1840) Rimosodaphnella morra (Dall, 1881) Rimosodaphnella semicolon (S. V. Wood, 1842) Rimula aequisculpta Dall, 1927 Rimula californiana S. S. Berry, 1964 Rimula dorriae Perez Farfante, 1947 Rimula frenulata (Dall, 1889) Rimula mexicana S. S. Berry. 1969 Rimula pycnonema Pilsbry, 1943 Ringicula nitida A. E. Verrill, 1873 Ringicula peracuta Ringicula ringens Ringicula semistriata D'Orbigny, 1842 Rissoa bermudezi Aguayo and Rehder, 1936 Rissoa curta Dall, 1927 Rissoa guerini Rissoa inconspicua Rissoa interrupta (J. Adams, 1800) Rissoa labiosa (Montagu, 1803) Rissoa lepida Woodring, 1928 Rissoa lilacina Récluz, 1843 Rissoa listeri Dall, 1927 Rissoa membranacea Rissoa parva Rissoa pompholyx Dall, 1927 Rissoa pyrrhais Watson, 1885 Rissoa syngenes Verrill, 1884 Rissoa toroensis Olsson and McGinty, 1958 Rissoa xanthias Watson, 1885 Rissoella alaskensis (Bartsch, 1907) Rissoella caribaea Rehder, 1943 Rissoella diaphana Rissoella hertleini A. G. Smith and M. Gordon, 1948 Rissoina barthelowi Bartsch, 1915 Rissoina basilirata Baker, Hanna, and Strong, 1930 Rissoina bryerea (Montagu, 1803) Rissoina burragei Bartsch, 1915 Rissoina californica Bartsch, 1915 Rissoina cancellata Philippi, 1847 Rissoina catesbyana Orbigny, 1842 Rissoina cerrosensis Bartsch, 1915 Rissoina chesnelii (Michaud, 1830) Rissoina decussata (Montagu, 1803) Rissoina dyscrita Faber, 1990 Rissoina ephamilla Rissoina expansa Carpenter, 1865 Rissoina firmata (C. B. Adams, 1852) Rissoina fischeri Desjardin, 1949 Rissoina hannai A. G. Smith and Gordon, 1948 Rissoina histia Bartsch, 1915 Rissoina keenae A. G. Smith and M. Gordon, 1948 Rissoina lapazana Bartsch, 1915 Rissoina mayori Dall, 1927 Rissoina melanelloides Baker, Hanna, and Strong, 1930 Rissoina mexicana Bartsch, 1915 Rissoina miltozona Rissoina multicostata (C. B. Adams, 1850) Rissoina nereina Bartsch, 1915 Rissoina newcombei Dall, 1897 Rissoina peninsularis Bartsch, 1915 Rissoina porteri Baker, Hanna, and Strong, 1930 Rissoina pulchella Rissoina sagraiana D'Orbigny, 1842 Rissoina shaferi Mcginty, 1962 Rissoina stricta Menke, 1850 Rissoina striosa (C. B. Adams, 1850) Rissoina triticea Rissoina turricula Rissopsetia hummelincki Faber, 1984 Robsonella fontaniana (D'Orbigny, 1834 in 1834-1847) Robsonella huttoni Benham, 1943 Rochefortia compressa Dall, 1913 Rochefortia grippi Dall, 1912 Rochefortia tumida (Carpenter, 1864) Rondeletiola minor (Naef, 1912) Roperia poulsoni (Carpenter, 1864) Rossia brachyura Verrill, 1883 Rossia bullisi Voss, 1956 Rossia glaucopis Loven, 1845 Rossia macrosoma (Chiaie, 1830 in 1823-1831) Rossia megaptera Verrill, 1881 in 1880-1881 Rossia moelleri Steenstrup, 1856 Rossia mollicella Sasaki, 1920 Rossia pacifica Berry, 1911 Rossia palpebrosa Owen, 1834 Rossia tortugaensis Voss, 1956 Rostanga pulchra MacFarland, 1905 Rostanga rubra (Risso, 1818) Rothelix cuyamacensis (Pilsbry, 1895) Rothelix lowei (Bartsch, 1918) Rothelix rhodophila (Reeder and W. B. Miller, 1987) Rothelix warnerfontis (Reeder and W. B. Miller, 1988) Roxania semilaevis (Sequenza, 1880) Roxania utriculus (Brocchi, 1814) Rubellatoma diomedea Bartsch and Rehder, 1939 Rubellatoma rubella (Kurtz and Stimpson, 1851) Rumina decollata (Linnaeus, 1758) Runcina coronata (Quatrefages, 1844) Runcina divae (Ev. Marcus and Er. Marcus, 1963) Runcina ferruginea Kress, 1977 Runcina macfarlandi Gosliner, 1991 Rupellaria cancellata (A. E. Verrill, 1885) Rupellaria denticulata (Sowerby, 1834) Rupellaria tellimyalis (Carpenter, 1864) Sabia conica (Schumacher, 1817) Sabinella bakeri Bartsch, 1917 Sabinella troglodytes (Thiele, 1925) Saccharoturris monocingulata (Dall, 1889) Saccostrea cuccullata (Born, 1778) Sagittunio aldermani Watters, 2018 Sagittunio nasutus (Say, 1817) Sagittunio subrostratus (Say, 1831) Sagittunio vaughanianus (Lea, 1838) Sakuraeolis enosimensis (Baba, 1930) Sandalops melancholicus Chun, 1906 Sanguinolaria cruenta (Lightfoot, 1786) Sanguinolaria sanguinolenta (Gmelin, 1791) Sansonia tuberculata (Watson, 1886) Sarasinula plebeia (P. Fischer, 1868) Sarasomia plebeia (P. Fischer, 1898) Sassia apenninica (Sassi, 1827) Saturnia corpulenta (Dall, 1881) Saturnia subovata Verrill and Bush, 1897 Saxicavella jeffreysi Winkworth, 1930 Saxicavella nybakkeni Scott, 1994 Saxicavella pacifica Dall, 1916 Saxidomus gigantea (Deshayes, 1839) Saxidomus nuttalli Conrad, 1837 Sayella chesapeakea Morrison, 1939 Sayella crosseana (Dall, 1885) Sayella fusca (C. B. Adams, 1839) Sayella hemphili (Dall, 1889) Sayella hemphillii (Dall, 1884) Sayella livida Rehder, 1935 Sayella unifasciata Scabiellus songkramensis (Kongim & Panha in Kongim et al., 2015) Scabies anceps (Deshayes in Deshayes & Jullien, 1876) Scabies crispata (Gould, 1843) Scabies humilis (Lea, 1856) Scabies mandarinus (Morelet, 1864) Scabies nucleus (Lea, 1856) Scabies phaselus (Lea, 1856) Scabies pilata (Lea, 1866) Scabies scobinatus (Lea, 1856) Scabrotrophon cerritensis (Arnold, 1903) Scabrotrophon clarki J. H. McLean, 1996 Scabrotrophon densicostatus (Golikov, 1985) Scabrotrophon grovesi J. H. McLean, 1996 Scabrotrophon lasius (Dall, 1919) Scabrotrophon maltzani (Kobelt and Kuster, 1878) Scabrotrophon rossica (Egorov, 1993) Scabrotrophon scarlatoi (Golikov and Sirenko, 1992) Scabrotrophon scitulus (Dall, 1891) Scaeurgus patagiatus Berry, 1913 Scaeurgus unicirrhus (Chiaie, 1839-41 in Férussac and D'Orbigny, 1834-1848) Scalenostoma babylonia Bartsch, 1912 Scaliola gracilis Scaphander bathymorphila Dall, 1881 Scaphander darius Marcus and Marcus, 1967 Scaphander lignarius (Linnaeus, 1767) Scaphander pilsbryi McGinty, 1955 Scaphander punctostriatus (Mighels and C. B. Adams, 1842) Scaphander watsoni Dall, 1881 Scaphander willetti Dall, 1919 Scaphella aguayoi (Clench, 1940) Scaphella dohrni (G. B. Sowerby III, 1903) Scaphella dubia (Broderip, 1827) Scaphella evelina F. M. Bayer, 1971 Scaphella gouldiana (Dall, 1887) Scaphella junonia (Lamarck, 1804) Scaphella piratica (Clench and Aguayo, 1940) Scaphella torrei (Pilsbry, 1937) Scelidotoma bella (Gabb, 1865) Schepmania nieuwenhuisi (Schepman, 1898) Schepmania parcesculpta (Martens, 1903) Schistodesmus lampreyanus (Baird & Adams, 1867) Schistodesmus spinosus (Simpson, 1900) Schizobrachium polycotylum Meisenheimer, 1903 Schizoplax brandtii (Middendorff, 1847) Schwartziella bakeri (Bartsch, 1902) Schwartziella bouryi (Desjardin, 1949) Schwartziella bryerea (Montagu, 1803) Schwartziella catesbyana (d'Orbigny, 1842) Schwartziella cleo (Bartsch, 1915) Schwartziella coronadoensis (Bartsch, 1915) Schwartziella dalli (Bartsch, 1915) Schwartziella fischeri Desjardin, 1949 Schwartziella hannai (A. G. Smith and M. Gordon, 1948) Scintillona bellerophon O'Foighil and Gibson, 1984 Scissilabra dalli Bartsch, 1907 Scissurella alta Watson, 1886 Scissurella caliana Dall, 1919 Scissurella cingulata O. G. Costa, 1861 Scissurella coronata Watson, 1866 Scissurella lacuniformis Watson, 1886 Scissurella laevigata Orbigny, 1824 Scissurella lamellata (A. Adams, 1862) Scissurella lyra S. S. Berry, 1947 Scissurella proxima Dall, 1927 Scissurella soyoae (Habe, 1951) Scissurella tabulata Watson, 1886 Sclerodoris tanya (Ev. Marcus, 1971) Sconsia nephele F. M. Bayer, 1971 Sconsia striata (Lamarck, 1816) Scrobicularia plana Scurria mesoleuca (Menke, 1851) Scutopus megaradulatus Salvini-Plawen, 1972 Scutopus robustus Salvini-plawen, 1970 Scutopus ventrolineatus Salvini-Plawen, 1968 Scyllaea pelagica Linnaeus, 1758 Searlesia modesta (Gould, 1860) Securicauda hermani Leonard, Chichester, Richart and Young, 2011 Seguenzia caliana Dall, 1919 Seguenzia carinata Jeffreys, 1876 Seguenzia certoma Dall, 1919 Seguenzia cervola Dall, 1919 Seguenzia elegans Jeffreys, 1876 Seguenzia eritima Verrill, 1884 Seguenzia floridana Dall, 1927 Seguenzia formosa Jeffreys, 1876 Seguenzia giovia Dall, 1919 Seguenzia hapala Woodring, 1928 Seguenzia ionica Watson, 1879 Seguenzia monocingulata Sequenza, 1876 Seguenzia rushi Dall, 1927 Seguenzia trispinosa Watson, 1888 Seila adamsi (H. C. Lea, 1845) Seila adamsii (H. C. Lea, 1845) Seila montereyensis Bartsch, 1907 Selenoteuthis scintillans Voss, 1959 Semele bellastriata (Conrad, 1837) Semele decisa (Conrad, 1837) Semele incongrua Carpenter, 1864 Semele proficua (Pulteney, 1799) Semele pulchra (G. B. Sowerby I, 1832) Semele purpurascens (Gmelin, 1791) Semele rubicola Dall, 1915 Semele rubropicta Dall, 1871 Semele rupicola Dall, 1915 Semele venusta (Reeve, 1853) Semelina nuculoides (Conrad, 1841) Semierycina nitida (Turton, 1822) Semierycina tenera (Jeffreys, 1881) Seminella varia Semirossia equalis (Voss, 1950) Semirossia patagonica (Smith, 1881) Semirossia tenera (Verrill, 1880) Sepia aculeata Van Hasselt, 1835 in Férussac and D'Orbigny, 1834-1848 Sepia acuminata Smith, 1916 Sepia adami Roeleveld, 1972 Sepia andreana Steenstrup, 1875 Sepia angulata Roeleveld, 1972 Sepia apama Gray, 1849 Sepia appellofi Wülker, 1910 Sepia arabica Massy, 1916 Sepia aureomaculata Okutani and Horikawa, 1987 Sepia australis Quoy and Gaimard, 1832 Sepia bandensis Adam, 1939 Sepia bartletti (Iredale, 1954) Sepia bathyalis Khromov, Nikitina and Nesis, 1991 Sepia baxteri (Iredale, 1940) Sepia bertheloti D'Orbigny, 1835 in Férussac and D'Orbigny, 1834-1848 Sepia braggi Verco, 1907 Sepia brevimana Steenstrup, 1875 Sepia burnupi Hoyle, 1904 Sepia carinata Sasaki, 1920 Sepia chirotrema Berry, 1918 Sepia confusa Smith, 1916 Sepia cottoni Adam, 1979 Sepia cultrata Hoyle, 1885 Sepia dannevigi Berry, 1918 Sepia dollfusi Adam, 1941 Sepia dubia Adam and Rees, 1966 Sepia elegans Blainville, 1827 Sepia elliptica Hoyle, 1885 Sepia elobyana Adam, 1941 Sepia elongata D'Orbigny, 1839-1842 in Férussac and D'Orbigny, 1834-1848 Sepia erostrata Sasaki, 1929 Sepia esculenta Hoyle, 1885 Sepia faurei Roeleveld, 1972 Sepia foliopeza Okutani and Tagawa, 1987 Sepia gibba Ehrenberg, 1831 Sepia hedleyi Berry, 1918 Sepia hieronis (Robson, 1924) Sepia hierredda Rang, 1835 in Férussac and D'Orbigny, 1834-1848 Sepia incerta Smith, 1916 Sepia insignis Smith, 1916 Sepia irvingi Meyer, 1909 Sepia ivanovi Khromov, 1982 Sepia joubini Massy, 1927 Sepia kiensis Hoyle, 1885 Sepia kobiensis Hoyle, 1885 Sepia latimanus Quoy and Gaimard, 1832 Sepia limata (Iredale, 1926) Sepia longipes Sasaki, 1914 Sepia lorigera Wülker, 1910 Sepia lycidas Gray, 1849 Sepia madokai Adam, 1939 Sepia mascarensis Filippova and Khromov, 1991 Sepia mestus Gray, 1849 Sepia mira (Cotton, 1932) Sepia mirabilis Khromov, 1988 Sepia murrayi Adam and Rees, 1966 Sepia novaehollandiae Hoyle, 1909 Sepia officinalis Linnaeus, 1758 Sepia omani Adam and Rees, 1966 Sepia opipara (Iredale, 1926) Sepia orbignyana Férussac in D'Orbigny, 1826 Sepia papillata Quoy and Gaimard, 1832 Sepia papuensis Hoyle, 1885 Sepia pardalis Sasaki, 1914 Sepia peterseni Appellöf, 1886 Sepia pharaonis Ehrenberg, 1831 Sepia plana Lu and Reid, 1997 Sepia plangon Gray, 1849 Sepia plathyconchalis Filippova and Khromov, 1991 Sepia prashadi Winckworth, 1936 Sepia pulchra Roeleveld and Liltved, 1985 Sepia recurvirostra Steenstrup, 1875 Sepia reesi Adam, 1979 Sepia rex (Iredale, 1926) Sepia rhoda (Iredale, 1954) Sepia robsoni (Massy, 1927) Sepia rozella (Iredale, 1926) Sepia savignyi Blainville, 1827 Sepia saya Khromov, Nikitina and Nesis, 1991 Sepia senta Lu and Reid, 1997 Sepia sewelli Adam and Rees, 1966 Sepia simoniana Thiele, 1920 Sepia smithi Hoyle, 1885 Sepia sokotriensis Khromov, 1988 Sepia stellifera Homenko and Khromov, 1984 Sepia subtenuipes Okutani and Horikawa, 1987 Sepia sulcata Hoyle, 1885 Sepia tala Khromov, Nikitina and Nesis, 1991 Sepia tenuipes Sasaki, 1929 Sepia thurstoni Adam and Rees, 1966 Sepia tokioensis Ortmann, 1888 Sepia trygonina (Rochebrune, 1884) Sepia tuberculata Lamarck, 1798 Sepia typica (Steenstrup, 1875) Sepia vercoi Adam, 1979 Sepia vermiculata Quoy and Gaimard, 1832 Sepia vietnamica Khromov, 1987 Sepia vossi Khromov, 1996 Sepia whitleyana (Iredale, 1926) Sepia zanzibarica Pfeffer, 1884 Sepiadarium auritum Robson, 1914 Sepiadarium austrinum Berry, 1921 Sepiadarium gracilis Voss, 1962 Sepiadarium kochi Steenstrup, 1881 Sepiadarium malayense Robson, 1932 Sepiadarium nipponianum Berry, 1932 Sepiella cyanea Robson, 1924 Sepiella inermis (Van Hasselt, 1835 in Férussac and D'Orbigny, 1834-1848) Sepiella japonica Sasaki, 1929 Sepiella ocellata Pfeffer, 1884 Sepiella ornata (Rang, 1837) Sepiella weberi Adam, 1939 Sepietta neglecta Naef, 1916 Sepietta oweniana (D'Orbigny, 1839-1841 in Férussac and D'Orbigny, 1834-1848) Sepietta petersi (Steenstrup, 1887) Sepiola affinis Naef, 1912 Sepiola atlantica D'Orbigny, 1839-1842 in Férussac and D'Orbigny, 1834-1848 Sepiola aurantiaca Jatta, 1896 Sepiola birostrata Sasaki, 1918 Sepiola intermedia Naef, 1912 Sepiola knudseni Adam, 1984 Sepiola ligulata Naef, 1912 Sepiola parva Sasaki, 1913 Sepiola pfefferi Grimpe, 1921 Sepiola robusta Naef, 1912 Sepiola rondeletii Leach, 1834 in Férussac and D'Orbigny, 1834-1848 Sepiola rossiaeformis Pfeffer, 1884 Sepiola steenstrupiana Levy, 1912 Sepiola trirostrata Voss, 1962 Sepiolina nipponensis (Berry, 1911) Sepioloidea lineolata (Quoy and Gaimard, 1832) Sepioloidea pacifica (Kirk, 1882) Sepioteuthis australis Quoy and Gaimard, 1832 Sepioteuthis lessoniana Férussac, 1831 in Lesson, 1830-1831 Sepioteuthis loliginiformis (Rüppell and Leuckart, 1828) Sepioteuthis sepioidea (Blainville, 1823) Septifer bifurcatus (Conrad, 1837) Septifer bilocularis (Linnaeus, 1758) Septifer bryanae Septifer rudis Serpulorbis decussatus (Gmelin, 1791) Serpulorbis squamiger (Carpenter, 1856) Serripes groenlandicus (Mohr, 1786) Serripes laperousii (Deshayes, 1839) Serripes notabilis (G. B. Sowerby III, 1915) Setia pulcherrima (Jeffreys, 1848) Setia turgida (Jeffreys, 1870) Sigatica carolinensis (Dall, 1889) Sigatica semisulcata (J. E. Gray, 1839) Silicula fragilis Jeffreys, 1879 Siliqua alta (Broderip and G. B. Sowerby I, 1829) Siliqua costata Say, 1822 Siliqua lucida (Conrad, 1837) Siliqua media Siliqua patula (Dixon, 1789) Siliqua sloati Hertlein, 1961 Siliqua squama de Blainville, 1824 Siliquaria modesta Dall, 1881 Siliquaria squamata Blainville, 1827 Similiphora intermedia (C. B. Adams, 1850) Simnia acicularis (Lamarck, 1810) Simnia aequalis Sowerby, 1832 Simnia avena Simnia loebbeckeana (Weinkauff, 1881) Simnia uniplicata Sowerby, 1848 Simnialena marferula Cate, 1973 Simnialena uniplicata (G. B. Sowerby II, 1848) Simomactra dolabriformis (Conrad, 1867) Simomactra falcata (Gould, 1850) Simomactra planulata (Conrad, 1837) Simpsonaias ambigua (Say, 1825) Simpsonasus nankingensis (Heude, 1874) Simpsonella burroughiana (Lea, 1834) Simpsonella gracilis (Lea, 1851) Simrothiella borealis (Odhner, 1921) Simrothiella margaritacea (Koren and Danielssen, 1877) Sinanodonta angula (Tchang, Li & Liu, 1965) Sinanodonta calipygos (Kobelt, 1879) Sinanodonta elliptica (Heude, 1878) Sinanodonta jourdyi (Morlet, 1886) Sinanodonta lauta (Martens, 1877) Sinanodonta lucida (Heude, 1877) Sinanodonta schrenkii (Lea, 1870) Sinanodonta tumens (Haas, 1910) Sinanodonta woodiana (Lea, 1834) Sinezona rimuloides (Carpenter, 1865) Sinohyriopsis cumingii (Lea, 1852) Sinohyriopsis goliath (Rolle, 1904) Sinohyriopsis schlegelii (Martens, 1861) Sinosolenaia carinata (Heude, 1877) Sinosolenaia iridinea (Heude, 1874) Sinosolenaia oleivora (Heude, 1877) Sinosolenaia recognita (Heude, 1877) Sinum debile (Gould, 1853) Sinum maculatum (Say, 1831) Sinum minus (Dall, 1889) Sinum perspectivum (Say, 1831) Sinum scopulosum (Conrad, 1849) Siphonaria alternata Say, 1826 Siphonaria brannani Stearns, 1872 Siphonaria pectinata (Linnaeus, 1758) Siphonaria thersites Carpenter, 1864 Siphonodentalium bushi Henderson, 1920 Siphonodentalium lobatum (Sowerby, 1860) Siphonodentalium occidentale Henderson, 1920 Siphonodentalium quadrifissatum (Pilsbry and Sharp, 1898) Siphonodentalium teres Jeffreys, 1882 Siphonodentalium verrilli Henderson, 1920 Siraius bicolor (Bergh, 1884) Siraius kyolis Ev. Marcus and Er. Marcus, 1967 Skenea areolata (G. O. Sars, 1878) Skenea californica (Bartsch, 1907) Skenea carmelensis A. G. Smith and M. Gordon, 1948 Skenea concordia (Bartsch, 1920) Skenea coronadoensis (Arnold, 1903) Skenea diaphana (A. E. Verrill, 1884) Skenea laevigata (Friele, 1876) Skenea serpuloides (Montagu, 1808) Skenea willei (Friele, 1886) Skeneopsis alaskana Dall, 1919 Skeneopsis planorbis (Fabricius, 1780) Smaragdia bryanae (Pilsbry, 1918) Smaragdia viridis (Linnaeus, 1758) Smeagol manneringi Climo, 1980 Solamen columbianum (Dall, 1897) Solamen leanum (Dall, 1897) Solamen megas (Dall, 1902) Solariella actinophora Dall, 1890 Solariella aegleis Watson, 1879 Solariella affinis (Friele, 1877) Solariella anoxia Dall, 1927 Solariella asperrima (Dall, 1881) Solariella calatha Dall, 1927 Solariella carvalhoi Loper and Cardoso, 1958 Solariella cincta (Philippi, 1836) Solariella constricta Dall, 1927 Solariella crossata (Dall, 1927) Solariella elegantula Dall, 1925 Solariella infundibulum (Watson, 1879) Solariella intermedia (Leche, 1878) Solariella iris (Dall, 1881) Solariella lacunella (Dall, 1881) Solariella laevis Friele, 1886 Solariella lamellosa (Dall, 1881) Solariella lewisae Willett, 1946 Solariella lissocona (Dall, 1881) Solariella lubrica Dall, 1881 Solariella maculata S. V. Wood, 1842 Solariella margaritus Solariella micraulax J. H. McLean, 1964 Solariella nuda Dall, 1896 Solariella obscura (Couthouy, 1838) Solariella oxybasis Dall, 1890 Solariella peramabilis Carpenter, 1864 Solariella periscopia Dall, 1927 Solariella pourtalesi Clench and Aguayo, 1939 Solariella rhyssa Dall, 1919 Solariella scabriuscula (Dall, 1881) Solariella sericifila (Dall, 1889) Solariella tiara (Watson, 1879) Solariella triplostephanus Dall, 1910 Solariella tubula Dall, 1927 Solariella varicosa (Mighels and C. B. Adams, 1842) Solariorbis arnoldi Bartsch, 1927 Solariorbis blakei (Rehder, 1944) Solariorbis infracarinata Rehder, 1944 Solariorbis infracarinatus (Gabb, 1881) Solariorbis mooreanus (Vanatta, 1904) Solariorbis shimeri Solariorbis terminalis (Pilsbry and McGinty, 1946) Solatisonax alleryi (Seguenza, 1876) Solatisonax borealis (A. E. Verrill and S. Smith, 1880) Solecurtus cumingianus Dunker, 1861 Solecurtus guaymasensis (Lowe, 1935) Solecurtus sanctaemarthae D'Orbigny, 1842 Solecurtus scopula (Turton, 1822) Solemya borealis Totten, 1834 Solemya grandis A. E. Verrill and Bush, 1898 Solemya occidentalis Deshayes, 1857 Solemya panamensis Dall, 1908 Solemya reidi Bernard, 1980 Solemya valvulus (Carpenter, 1864) Solemya velum Say, 1822 Solen marginatus Solen obliquus Sprengler, 1794 Solen rostriformis Dunker, 1862 Solen sicarius Gould, 1850 Solen viridis Say, 1821 Solenaia emarginata (Lea, 1860) Somatogyrus alcoviensis Krieger, 1972 Somatogyrus amnicoloides Walker, 1915 Somatogyrus aureus Tryon, 1865 Somatogyrus biangulatus Walker, 1906 Somatogyrus constrictus Walker, 1904 Somatogyrus coosaensis Walker, 1904 Somatogyrus crassilabris Walker, 1915 Somatogyrus crassus Walker, 1904 Somatogyrus currierianus (Lea, 1863) Somatogyrus decipiens Walker, 1909 Somatogyrus depressus (Tryon, 1862) Somatogyrus excavatus Walker, 1906 Somatogyrus georgianus Walker, 1904 Somatogyrus hendersoni Walker, 1909 Somatogyrus hinkleyi Walker, 1904 Somatogyrus humerosus Walker, 1906 Somatogyrus integra (Say, 1829) Somatogyrus nanus Walker, 1904 Somatogyrus obtusus Walker, 1904 Somatogyrus parvulus Tryon, 1865 Somatogyrus pennsylvanicus Walker, 1904 Somatogyrus pilsbryanus Walker, 1904 Somatogyrus pumilus (Conrad, 1834) Somatogyrus pygmaeus Walker, 1909 Somatogyrus quadratus Walker, 1906 Somatogyrus rheophilus F. G. Thompson, 1984 Somatogyrus rosewateri M. E. Gordon, 1986 Somatogyrus sargenti Pilsbry, 1895 Somatogyrus strengi Pilsbry and Walker, 1906 Somatogyrus substriatus Walker, 1906 Somatogyrus tenax F. G. Thompson, 1969 Somatogyrus tennesseensis Walker, 1906 Somatogyrus trothis Doherty, 1878 Somatogyrus tryoni Pilsbry and F. C. Baker, 1927 Somatogyrus virginicus Walker, 1904 Somatogyrus walkerianus Aldrich, 1905 Somatogyrus wheeleri Walker, 1915 Songkhlanaia tamodienica Konopleva, Lheknim, Sriwoon, Kondakov, Vikhrev & Bolotov in Konopleva et al., 2023 Sonorelix angelus (Gregg, 1949) Sonorelix avawatzica (S. S. Berry, 1930) Sonorelix baileyi (Bartsch, 1904) Sonorelix borregoensis (S. S. Berry, 1929) Sonorelix harperi (Bryant, 1900) Sonorelix melanophylon (S. S. Berry, 1930) Sonorelix melanopylon (S. S. Berry, 1930) Sonorelix rixfordi (Pilsbry, 1919) Sonorella allynsmithi Gregg and W. B. Miller, 1969 Sonorella ambigua Pilsbry and Ferriss, 1915 Sonorella anchana S. S. Berry, 1948 Sonorella animasensis Pilsbry, 1939 Sonorella apache Pilsbry and Ferriss, 1915 Sonorella ashmuni Bartsch, 1904 Sonorella baboquivariensis Pilsbry and Ferriss, 1915 Sonorella bagnarai W. B. Miller, 1967 Sonorella bartschi Pilsbry and Ferriss, 1915 Sonorella bequaerti W. B. Miller, 1967 Sonorella bicipitis Pilsbry and Ferriss, 1910 Sonorella binneyi Pilsbry and Ferriss, 1910 Sonorella bowiensis Pilsbry, 1905 Sonorella bradshaveana W. B. Miller, 1984 Sonorella caerulifluminis Pilsbry and Ferriss, 1919 Sonorella christenseni Fairbanks and Reeder, 1980 Sonorella clappi Pilsbry and Ferriss, 1915 Sonorella coloradoensis (Stearns, 1890) Sonorella coltoniana Pilsbry, 1939 Sonorella compar Pilsbry, 1919 Sonorella dalli Bartsch, 1904 Sonorella danielsi Pilsbry and Ferriss, 1910 Sonorella delicata Pilsbry and Ferriss, 1919 Sonorella dragoonensis Pilsbry and Ferriss, 1915 Sonorella eremita Pilsbry and Ferriss, 1915 Sonorella ferrissi Pilsbry, 1915 Sonorella franciscana Pilsbry and Ferriss, 1919 Sonorella galiurensis Pilsbry and Ferriss, 1919 Sonorella grahamensis Pilsbry and Ferriss, 1919 Sonorella granulatissima Pilsbry, 1902 Sonorella hachitana (Dall, 1896) Sonorella huachucana Pilsbry, 1905 Sonorella imitator Gregg and W. B. Miller, 1974 Sonorella imperatrix Pilsbry, 1939 Sonorella imperialis Pilsbry and Ferriss, 1923 Sonorella insignis Pilsbry and Ferriss, 1919 Sonorella macrophallus Fairbanks and Reeder, 1980 Sonorella magdalenensis (Stearns, 1890) Sonorella meadi W. B. Miller, 1966 Sonorella metcalfi W. B. Miller, 1976 Sonorella micra Pilsbry and Ferriss, 1910 Sonorella micromphala Pilsbry, 1939 Sonorella milleri Christensen and Reeder, 1981 Sonorella mustang Pilsbry and Ferriss, 1919 Sonorella neglecta Gregg, 1951 Sonorella odorata Pilsbry and Ferriss, 1919 Sonorella optata Pilsbry and Ferris, 1910 Sonorella orientis Pilsbry, 1936 Sonorella papagorum Pilsbry and Ferriss, 1915 Sonorella parva Pilsbry, 1905 Sonorella reederi W. B. Miller, 1984 Sonorella rinconensis Pilsbry and Ferriss, 1910 Sonorella rooseveltiana S. S. Berry, 1917 Sonorella rosemontensis Pilsbry, 1939 Sonorella russelli W. B. Miller, 1984 Sonorella sabinoensis Pilsbry and Ferriss, 1919 Sonorella santaritana Pilsbry and Ferriss, 1915 Sonorella simmonsi W. B. Miller, 1966 Sonorella sitiens Pilsbry and Ferriss, 1915 Sonorella superstitionis Pilsbry, 1939 Sonorella todseni W. B. Miller, 1976 Sonorella tortillita Pilsbry and Ferriss, 1919 Sonorella tryoniana Pilsbry and Ferriss, 1923 Sonorella vespertina Pilsbry and Ferriss, 1915 Sonorella virilis Pilsbry, 1905 Sonorella walkeri Pilsbry and Ferriss, 1915 Sonorella waltoni W. B. Miller, 1968 Sonorella xanthenes Pilsbry and Ferriss, 1923 Spathochlamys benedicti (A. E. Verrill and Bush, 1897) Spathochlamys vestalis (Reeve, 1853) Spathoderma californicum (Schwabl, 1963) Spathoderma clenchi Spathoteredo spatha (Jeffreys, 1860) Speleodiscoides spirellum A. G. Smith, 1957 Spengleria rostrata (Spengler, 1783) Sphaerium corneum (Linnaeus, 1758) Sphaerium fabale (Prime, 1852) Sphaerium nitidum Westerlund, 1876 Sphaerium occidentale (J. Lewis, 1856) Sphaerium patella (Gould, 1850) Sphaerium rhomboideum (Say, 1822) Sphaerium simile (Say, 1817) Sphaerium striatinum (Lamarck, 1818) Sphenia antillensis Dall and Simpson, 1901 Sphenia binghami Turton, 1822 Sphenia luticola (Valenciennes, 1846) Sphenia ovoidea Carpenter, 1864 Sphenia sincera Hanks and Packer, 1985 Sphenia tumida J. E. Lewis, 1968 Sphenonaias colorata (Küster, 1856) Sphenonaias flucki (Bartsch, 1906) Sphenonaias liebmanni (Philippi, 1847) Sphenonaias mexicana (Philippi, 1847) Sphenonaias microdon (Martens, 1887) Spiculata advena Cate, 1978 Spiculata barbarensis (Dall, 1892) Spiculata loebbeckeana (Wienkauff, 1881) Spilochlamys conica F. G. Thompson, 1968 Spilochlamys gravis F. G. Thompson, 1968 Spilochlamys turgida F. G. Thompson, 1969 Spinula subexcisa (Dautzenberg and Fischer, 1897) Spiroglyptus annulatus Daudin, 1800 Spiroglyptus irregularis (d'Orbigny, 1842) Spiroglyptus lituellus Morch, 1861 Spiroglyptus nebulosus (Dillwyn, 1817) Spiroglyptus rastrus (Morch, 1861) Spirolaxis centrifuga (di Monterosato, 1890) Spirolaxis lamellifer (Rehder, 1935) Spiromoelleria kachemakensis Baxter and J. H. McLean, 1984 Spiromoelleria quadrae (Dall, 1897) Spirotropis modiolus (Cristofori and Jan, 1832 Spirula spirula (Linnaeus, 1758) Spisula elliptica Spisula ovalis (J. Sowerby, 1817) Spisula raveneli (Conrad, 1831) Spisula solida (Linnaeus, 1758) Spisula solidissima (Dillwyn, 1817) Spisula subtruncata Splendrillia fucata (Reeve, 1845) Splendrillia halidorema (Schwengel, 1940) Splendrillia janetae Bartsch, 1934 Splendrillia kathyae (Tippett, 1995) Splendrillia lissotropis (Dall, 1881) Splendrillia moseri (Dall, 1889) Splendrillia pagodula (Dall, 1889) Splendrillia petiti (Tippett, 1995) Splendrillia sunderlandi Petuch, 1987 Splendrillia woodringi (Bartsch, 1934) Spondylus americanus Hermann, 1781 Spondylus ictericus Reeve, 1856 Spongiobranchaea australis d'Orbigny, 1836 Spurilla chromosoma Cockerell and Eliot, 1905 Spurilla neapolitana (delle Chiaje, 1823) Spurilla oliviae (Mcfarland, 1966) Spurilla verrucicornis (A. Costa, 1867) Spurwinkia salsa (Pilsbry, 1905) Stagnicola apicina (Lea, 1838) Stagnicola arctica (Lea, 1864) Stagnicola bonnevillensis (Call, 1884) Stagnicola caperata (Say, 1829) Stagnicola catascopium (Say, 1817) Stagnicola contracta (Currier, 1881) Stagnicola elodes (Say, 1821) Stagnicola elrodi (F. C. Baker and J. Henderson, 1933) Stagnicola elrodiana F. C. Baker, 1935 Stagnicola emarginata (Say, 1821) Stagnicola exilis (Lea, 1834) Stagnicola gabbi (Tryon, 1865) Stagnicola hinkleyi (F. C. Baker, 1906) Stagnicola idahoensis (J. Henderson, 1931) Stagnicola kennicotti Baker, 1933 Stagnicola mighelsi (W. G. Binney, 1865) Stagnicola montanensis (F. C. Baker, 1913) Stagnicola neopalustris (F. C. Baker, 1911) Stagnicola oronoensis (F. C. Baker, 1904) Stagnicola petoskeyensis (Walker, 1908) Stagnicola pilsbryi (Hemphill, 1890) Stagnicola traski (Tryon, 1863) Stagnicola utahensis (Call, 1884) Stagnicola walkeriana F. C. Baker, 1926 Stagnicola woodruffi (F. C. Baker, 1901) Stauroteuthis syrtensis Verrill, 1879 Steironepion minor (C. B. Adams, 1845) Steironepion moniliferum (G. B. Sowerby I, 1844) Stellatoma stellata (Stearns, 1872) Stenolena hawaiensis Dall, Bartsch, and Rehder, 1938 Stenophysa marmorata (Guilding, 1828) Stenophysa maugeriae (J. E. Gray, 1837) Stenoplax bahamensis Kaas and Van Belle, 1987 Stenoplax boogii (Haddon, 1886) Stenoplax conspicua (Pilsbry, 1892) Stenoplax corrugata (Pilsbry, 1892) Stenoplax erythronota Stenoplax fallax (Pilsbry, 1892) Stenoplax floridana (Pilsbry, 1892) Stenoplax heathiana S. S. Berry, 1946 Stenoplax limaciformis Stenoplax purpurascens (C. B. Adams, 1845) Stenoplax rugulata Stenosemus abyssicola Stenotrema altispira (Pilsbry, 1894) Stenotrema angellum Hubricht, 1958 Stenotrema barbatum (G. H. Clapp, 1904) Stenotrema barbigerum (Redfield, 1856) Stenotrema blandianum (Pilsbry, 1903) Stenotrema brevipila (G. H. Clapp, 1907) Stenotrema burringtoni Grimm, 1971 Stenotrema calvescens Hubricht, 1961 Stenotrema cohuttense (G. H. Clapp, 1914) Stenotrema deceptum (G. H. Clapp, 1905) Stenotrema depilatum (Pilsbry, 1895) Stenotrema edgarianum (I. Lea, 1841) Stenotrema edvardsi (Bland, 1856) Stenotrema exodon (Pilsbry, 1900) Stenotrema florida Pilsbry, 1940 Stenotrema hirsutum (Say, 1817) Stenotrema labrosum (Bland, 1862) Stenotrema magnafumosum (Pilsbry, 1900) Stenotrema magnifumosum (Pilsbry, 1900) Stenotrema maxillatum (Gould, 1848) Stenotrema pilsbryi (Ferriss, 1900) Stenotrema pilula (Pilsbry, 1900) Stenotrema simile Grimm, 1971 Stenotrema spinosum (I. Lea, 1830) Stenotrema stenotrema (Pfeiffer, 1842) Stenotrema unciferum (Pilsbry, 1900) Stenotrema waldense Archer, 1938 Sterkia calamitosa (Pilsbry, 1889) Sterkia clementina (Sterki, 1890) Sterkia eyriesii (Drouet, 1859) Sterkia hemphilli (Sterki, 1890) Sthenorytis pernobilis (P. Fischer and Bernardi, 1857) Sthenoteuthis oualaniensis (Lesson, 1830 in 1830-1831) Sthenoteuthis pteropus (Steenstrup, 1855) Stigmaulax sulcatus (Born, 1778) Stilifer stimpsoni Verrill, 1872 Stiliger bellulus (Orgibny, 1837) Stiliger costai Pruvot-fol, 1951 Stiliger fuscatus Gould, 1870 Stiliger fuscovittatus Lance, 1962 Stiliger niger Lemche, 1935 Stiliger oophaga (Lemche, 1972) Stiliger ornatus Ehrenberg, 1831 Stiliger vanellus Stiliger vossi Ev. Marcus and Er. Marcus, 1960 Stiobia nana F. G. Thompson, 1978 Stoloteuthis leucoptera (Verrill, 1878) Stosicia aberrans (C. B. Adams, 1850) Stramonita haemastoma (Linnaeus, 1758) Stramonita rustica (Lamarck, 1822) Striarea centenaria (Say) Striarea lactea (Linnaeus, 1758) Striatura exigua (Stimpson, 1850) Striatura ferrea E. S. Morse, 1864 Striatura meridionalis (Pilsbry and Ferriss, 1906) Striatura milium (E. S. Morse, 1859) Striatura pugentensis (Dall, 1895) Striatura pugetensis (Dall, 1895) Strictispira solida (C. B. Adams, 1850) Strigilla carnaria (Linnaeus, 1758) Strigilla gabbi Olsson and McGinty, 1958 Strigilla mirabilis (Philippi, 1841) Strigilla pisiformis (Linnaeus, 1758) Strigilla producta Tryon, 1870 Strigilla pseudocarnaria Boss, 1969 Strigilla surinamensis Boss, 1972 Strobilops aeneus Pilsbry, 1926 Strobilops affinis Pilsbry, 1893 Strobilops hubbardi (A. D. Brown, 1861) Strobilops labyrinthicus (Say, 1817) Strobilops texasianus Pilsbry and Ferriss, 1906 Strombiformis alaskensis Bartsch, 1917 Strombiformis almo Bartsch, 1917 Strombiformis auricinctus Abbott, 1958 Strombiformis bifasciatus D'Orbigny, 1842 Strombiformis bilineatus Alder, 1848 Strombiformis californicus Bartsch, 1917 Strombiformis hemphilli (Dall, 1884) Strombiformis patula (Dall and Simpson, 1901) Strombus alatus Gmelin, 1791 Strombus costatus Gmelin, 1791 Strombus gallus Linnaeus, 1758 Strombus gigas Linnaeus, 1758 Strombus pugilis Linnaeus, 1758 Strombus raninus Gmelin, 1791 Strophitus howellsi Smith, Kiser, Johnson & Randklev, 2023 Strophitus pascagoulaensis Smith, Johnson, Pfeiffer & Gangloff, 2018 Strophitus radiatus (Conrad, 1834) Strophitus undulatus (Say, 1817) Strophitus williamsi Smith, Johnson, Pfeiffer & Gangloff, 2018 Stygopyrgus bartonensis Hershler and Longley, 1986 Stylidium eschrichtii (Middendorff, 1849) Styliferina goniochila Styliola subula (Quoy and Gaimard, 1827) Stylocheilus citrinus (Rang, 1828) Stylocheilus longicauda (Quoy and Gaimard, 1825) Suavodrillia kennicotti (Dall, 1871) Suavodrillia kennicottii (Dall, 1871) Suavodrillia willetti Dall, 1919 Subcancilla attenuata (Broderip, 1936) Subcancilla erythrogramma (Tomlin, 1931) Subcancilla flammea Subcancilla foveolata Subcancilla gigantea (Reeve, 1844) Subcancilla lopesi (Matthews and Coelho, 1969) Subcancilla phorminx (S. S. Berry, 1969) Subcancilla sulcata (Swainson in Sowerby, 1835) Subsimnia bellamaris (S. S. Berry, 1946) Subulina octona (Bruguiere, 1792) Succinea barberi (W. B. Marshall, 1926) Succinea californica P. Fischer and Crosse, 1878 Succinea campestris Say, 1817 Succinea chittenangoensis Pilsbry, 1908 Succinea floridana Pilsbry, 1905 Succinea forsheyi I. Lea, 1864 Succinea gabbi Tryon, 1866 Succinea greeri Tryon, 1866 Succinea greerii Tryon, 1866 Succinea grosvenori I. Lea, 1864 Succinea indiana Pilsbry, 1905 Succinea luteola Gould, 1848 Succinea oregonensis I. Lea, 1841 Succinea ovalis Say, 1817 Succinea paralia Hubricht, 1983 Succinea pennsylvanica Pilsbry, 1948 Succinea pseudavara Webb, 1954 Succinea putris (Linnaeus, 1758) Succinea rusticana Gould, 1846 Succinea solastra Hubricht, 1961 Succinea strigata Pfeiffer, 1855 Succinea unicolor Tryon, 1866 Succinea urbana Hubricht, 1961 Succinea vaginacontorta C. B. Lee, 1951 Succinea wilsoni I. Lea, 1864 Succinea wilsonii I. Lea, 1864 Suhinia steinbergae (Lance, 1962) Sulcosinus taphrius (Dall, 1891) Sundadontina brandti Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Sundadontina cumingii (Lea, 1851) Sundadontina harmandi (Crosse & Fischer, 1876) Sundadontina mabilli (Rochebrune, 1882) Sundadontina moreleti (Crosse & Fischer, 1876) Sundadontina ovalis (Morlet, 1889) Sundadontina plugpomenica Konopleva, Lheknim, Sriwoon, Kondakov, Vikhrev & Bolotov in Konopleva et al., 2023 Sundadontina ponderosa (Preston, 1909) Sundadontina sulcata (Rochebrune, 1882) Sundadontina tanintharyiensis Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Sundadontina taskaevi Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Sundadontina tumida (Morelet, 1866) Supplanaxis nucleus (Bruguiere, 1789) Suturoglypta iontha (Ravenel, 1861) Suturoglypta pretrii (Duclos, 1846) Synaptocochlea concinna Synaptocochlea montrouzieri Pilsbry, 1890 Synaptocochlea picta (d'Orbigny, 1842) Syncera succinea Tachyrhynchus erosus (Couthouy, 1838) Tachyrhynchus lacteolus (Carpenter, 1864) Tachyrhynchus pratomus Dall, 1919 Tachyrhynchus reticulatis (Mighels and C. B. Adams, 1842 Tachyrhynchus reticulatus (Mighels and C. B. Adams, 1842) Tachyrhynchus stearnsii Dall, 1919 Tagelus affinis (C. B. Adams, 1852) Tagelus californianus (Conrad, 1837) Tagelus divisus (Spengler, 1794) Tagelus plebeius (Lightfoot, 1786) Tagelus subteres (Conrad, 1837) Talparia cinerea (Gmelin, 1791) Tambja gratiosa (Bergh, 1890) Tamsiella amazonica Bonetto, 1972 Tamsiella schroeteriana (Lea, 1852) Tamsiella tamsiana (Dunker, 1858) Taningia danae Joubin, 1931 Taningia persica (Naef, 1923) Taonius pavo (Lesueur, 1821) Tapes pullastra (Montagu, 1803) Tapes rhomboides (Pennant, 1777) Taranis borealis Bouchet and Waren, 1980 Taranis cirrata (Brugnone, 1862) Taranis morchii (Malm, 1861) Taranis pulchella Verrill, 1880 Tarebia granifera (Lamarck, 1822) Taringa aivica Ev. Marcus and Er. Marcus, 1967 Taringa telopia Er. Marcus, 1955 Taylorconcha insperata Hershler, Liu, Frest, Johannes and Clark, 2006 Taylorconcha serpenticola Hershler, Frest, Johannes, Bowler and F. G. Thompson, 1994 Tchangsinaia piscicula (Heude, 1874) Tectarius antonii (Philippi, 1846) Tectarius coronatus Valenciennes, 1833 Tectarius muricatus (Linnaeus, 1758) Tectarius tuberculatus Tectininus nodulosus (Pfeiffer, 1839) Tectonatica pusilla (Say, 1822) Tectura depicta (Hinds, 1842) Tectura fenestrata (Reeve, 1855) Tectura paleacea (Gould, 1853) Tectura persona (Rathke, 1833) Tectura rosacea (Carpenter, 1864) Tectura scutum (Rathke, 1833) Tectura testudinalis (Muller, 1776) Tectura virginea (O. F. Mueller, 1776) Tegula aureotincta (Forbes, 1850) Tegula brunnea Philippi, 1848 Tegula corteziana Mclean, 1970 Tegula eiseni Jordan, 1936 Tegula excavata (Lamarck, 1822) Tegula fasciata (Born, 1778) Tegula felipenis Mclean, 1970 Tegula funebralis (A. Adams, 1855) Tegula gallina (Forbes, 1850) Tegula gruneri (Philippi, 1849) Tegula hotessieriana (d'Orbigny, 1842) Tegula lividomaculata (C. B. Adams, 1845) Tegula maculostriata (C. B. Adams) Tegula mariana Dall, 1919 Tegula montereyi (Kiener, 1850) Tegula patagonica (Orbigny, 1840) Tegula pellisserpentis Wood, 1828 Tegula pulligo (Gmelin, 1791) Tegula regina Stearns, 1892 Tegula rubroflammulata (Koch, 1843) Tegula verdispira J. H. McLean, 1970 Tegula viridula (Gmelin, 1791) Teinostoma amplectans Carpenter, 1857 Teinostoma bibbianum Dall, 1919 Teinostoma biscaynense Pilsbry and McGinty, 1945 Teinostoma carinicallus Pilsbry and McGinty, 1946 Teinostoma cercinellum Teinostoma clavium Pilsbry and McGinty, 1945 Teinostoma cocolitoris Pilsbry and McGinty, 1945 Teinostoma cryptospira (A. E. Verrill, 1884) Teinostoma floridensis (Dall, 1927) Teinostoma gallegosi Jordan, 1936 Teinostoma goniogyrus Pilsbry and McGinty, 1945 Teinostoma incertum Pilsbry and McGinty, 1945 Teinostoma lerema Pilsbry and McGinty, 1945 Teinostoma lituspalmarum Pilsbry and McGinty, 1945 Teinostoma megastoma (C. B. Adams, 1850) Teinostoma megastomum (C. B. Adams, 1850) Teinostoma minusculum (Bush, 1897) Teinostoma nense Pilsbry and McGinty, 1945 Teinostoma nesaeum Pilsbry and McGinty, 1945 Teinostoma obtectum Pilsbry and McGinty, 1945 Teinostoma parvicallum Pilsbry and McGinty, 1945 Teinostoma pilsbryi Mcginty, 1945 Teinostoma politum Teinostoma reclusum (Dall, 1889) Teinostoma salvanium Dall, 1919 Teinostoma sapiella Dall, 1919 Teinostoma sapiellum Dall. 1919 Teinostoma semistriatum (d'Orbigny, 1842) Teinostoma solida (Dall, 1889) Teinostoma supravallatum (Carpenter, 1864) Teinostoma tectum Pilsbry and McGinty, 1945 Tellidora cristata (Recluz, 1842) Tellidorella cristulata Tellimya ferruginosa (Montagu, 1803) Tellimya phascolionis (Dautzenberg and Fischer, 1925) Tellina aequistriata Say, 1824 Tellina agilis Stimpson, 1857 Tellina alerta Boss, 1964 Tellina alternata Say, 1822 Tellina americana Dall, 1900 Tellina amianta Dall, 1900 Tellina angulosa Gmelin, 1791 Tellina bodegensis Hinds, 1845 Tellina candeana D'Orbigny, 1842 Tellina carpenteri Dall, 1900 Tellina cerrosiana Dall, 1900 Tellina coani Keen, 1971 Tellina colorata Dall, 1900 Tellina consobrina D'Orbigny, 1842 Tellina cristallina Spengler, 1798 Tellina cumingii Hanley, 1844 Tellina diantha Boss, 1964 Tellina donacina Tellina elucens Mighels, 1845 Tellina euvitrea Boss, 1964 Tellina exerythra Boss, 1964 Tellina fabula Gmelin, 1791 Tellina fausta Pulteney, 1799 Tellina flucigera Dall, 1908 Tellina gibber Von Ihering, 1907 Tellina gouldii Hanley, 1846 Tellina guildingii Hanley, 1844 Tellina idae Dall, 1891 Tellina inaequistriata Donovan, 1802 Tellina iris Say, 1822 Tellina juttingae Altena, 1965 Tellina laevigata Linnaeus, 1758 Tellina lamellata Carpenter, 1855 Tellina lineata Turton, 1819 Tellina listeri Roding, 1798 Tellina lutea W. Wood, 1828 Tellina magna Spengler, 1798 Tellina martinicensis D'Orbigny, 1842 Tellina mera Say, 1834 Tellina meropsis Dall, 1900 Tellina modesta (Carpenter, 1864) Tellina nitens C. B. Adams, 1845 Tellina nuculoides (Reeve, 1854) Tellina oahuana Tellina ochracea Carpenter, 1864 Tellina pacifica Dall, 1900 Tellina paramera Boss, 1964 Tellina persica Dall and Simpson, 1901 Tellina pristiphora Dall, 1900 Tellina probina Boss, 1964 Tellina proclivis Hertlein and Strong, 1949 Tellina prora Hanley, 1844 Tellina punicea Born, 1778 Tellina pygmaea Tellina radiata Linnaeus, 1758 Tellina reclusa Dall, 1900 Tellina recurvata Hertlein and Strong, 1949 Tellina rubescens Hanley, 1844 Tellina sandix Boss, 1968 Tellina similis J. Sowerby, 1806 Tellina simulans C. B. Adams, 1852 Tellina squamifera Deshayes, 1855 Tellina sybaritica Dall, 1881 Tellina tabogensis Salisbury, 1934 Tellina tampaensis Conrad, 1866 Tellina tenella A. E. Verrill, 1874 Tellina tenuis Tellina texana Dall, 1900 Tellina variegata Tellina versicolor DeKay, 1843 Tellina vespuciana (d'Orbigny, 1842) Tellina virgo Hanley, 1844 Tenagodus squamatus (de Blainville, 1827) Tenaturris bartletti (Dall, 1889) Tenaturris janira (Dall, 1919) Tenellia adspersa (Nordmann, 1845) Tenellia fuscata (Gould, 1870) Tenellia ventilabrum (Dalyell, 1853) Teralatirus cayohuesonicus (G. B. Sowerby III, 1878) Terebra acrior Dall, 1889 Terebra alba J. E. Gray, 1834 Terebra arcas Abbott, 1954 Terebra armillata Hinds, 1844 Terebra benthalis Dall, 1889 Terebra concava (Say, 1826) Terebra crenifera Deshayes, 1859 Terebra dislocata (Say, 1822) Terebra doellojuradoi Carcelles, 1953 Terebra floridana Dall, 1889 Terebra glossema Schwengel, 1942 Terebra hemphilli Vanatta, 1924 Terebra lindae Petuch, 1987 Terebra nassula Dall, 1889 Terebra pedroana Dall, 1908 Terebra protexta (Conrad, 1846) Terebra rushii Dall, 1889 Terebra taurina (Lightfoot, 1786) Terebra thaanumi Pilsbry, 1921 Terebra vinosa Dall, 1889 Teredo bartschi W. Clapp, 1923 Teredo fulleri W. Clapp, 1924 Teredo furcifera von Martens, 1894 Teredo megotara (Hanley, 1848) Teredo navalis Linnaeus, 1758 Teredo norvagicus (Spengler, 1792) Teredo portoricensis W. Clapp, 1924 Teredora malleolus (Turton, 1822) Teredothyra excavata (Jeffreys, 1860) Teretia anceps (Eichwald, 1830) Teretoctopus alcocki Robson, 1932 Teretoctopus indicus Robson, 1929 Tergipes tergipes (Forskal, 1775) Teskeyostrea weberi (Olsson, 1951) Testacella haliotidea Draparnaud, 1801 Tethys fimbria Linnaeus, 1758 Tetracheledone spinicirrus Voss, 1955 Tetronychoteuthis dussumieri (D'Orbigny, 1839-1842 in Férussac and D'Orbigny, 1834-1848) Teuthowenia maculata (Leach, 1817) Teuthowenia megalops (Prosch, 1847) Teuthowenia pellucida (Chun, 1910) Texadina barretti (Morrison, 1965) Texadina sphinctostoma (Abbott and Ladd, 1951) Texapyrgus longleyi F. G. Thompson and Hershler, 1991 Thaiconcha callifera (Martens, 1860) Thaiconcha munelliptica Konopleva, Bolotov, Pfeiffer, Vikhrev, Kondakov, Gofarov, Tomilova, Tanmuangpak et al., 2021 Thaiconcha thaiensis Konopleva, Bolotov, Pfeiffer, Vikhrev, Kondakov, Gofarov, Tomilova, Tanmuangpak et al., 2021 Thais deltoidea (Lamarck, 1822) Thais emarginata Thais kiosquiformis (Duclos, 1832) Thais lamellosa Thais nodosa Linnaeus, 1758 Thais speciosa (Valenciennes, 1832) Thais triangularis (Blainville, 1832) Thais trinitatensis (Guppy, 1869) Thais undata Lamarck Thala floridana (Dall, 1884) Thala foveata (Sowerby, 1874) Thala gratiosa (Reeve, 1845) Thaleia nisonis (Dall, 1889) Thaltia rubra Thaltia subangulata Tharsiella romettensis (Granata Grillo, 1877) Thaumeledone brevis (Hoyle, 1885) Thaumeledone gunteri Robson, 1930 Theba pisana (Muller, 1774) Thecacera pennigera (Montagu, 1815) Thelecythara floridana Fargo, 1953 Thelecythara mucronata (Guppy, 1896) Theliderma cylindrica (Say, 1817) Theliderma intermedia (Conrad, 1836) Theliderma johnsoni Bogan & Lopes-Lima in Lopes-Lima & Bogan, 2019 Theliderma metanevra (Rafinesque, 1820) Theliderma sparsa (Lea, 1841) Theliderma stapes (Lea, 1831) Theodoxus fluviatilis (Linnaeus, 1758) Theora lubrica Gould, 1861 Thesbia nana (Loven, 1846) Theta chariessa (Watson, 1881) Theta lyronuclea (Clarke, 1959) Theta vayssieri (Dautzenberg, 1925) Thiara bladwini Ancey, 1899 Thiara indefinita Lea and Lea, 1851 Thiara kauaiensis Pease, 1870 Thiara verrauiana Lea, 1856 Thliptodon antarcticus Meisenheimer, 1906 Thliptodon diaphanus (Meisenheimer, 1903) Thliptodon gegenbauri Boas, 1886 Thordisa bimaculata Lance, 1966 Thordisa rubescens Behrens and R. Henderson, 1981 Thracia adamsi MacGinitie, 1959 Thracia challisiana Dall, 1915 Thracia condoni Dall, 1909 Thracia conradi Couthouy, 1839 Thracia convexa (W. Wood, 1815) Thracia corbuloides Blainville, 1824 Thracia curta Conrad, 1837 Thracia devexa G. O. Sars, 1878 Thracia distorta Montagu, 1808 Thracia itoi Thracia morrisoni R. E. Petit, 1964 Thracia myopsis Møller, 1842 Thracia phaseolina (Lamarck, 1822) Thracia pubescens (Pulteney, 1799) Thracia rugosa Lamarck, 1818 Thracia septentrionalis Jeffreys, 1872 Thracia stimpsoni Dall, 1886 Thracia trapezoides Conrad, 1849 Thracia villosiuscula Thuridilla picta (A. E. Verrill, 1901) Thyasira alleni Carrozza, 1981 Thyasira barbarensis (Dall, 1890) Thyasira brevis A. E. Verrill and Bush, 1898 Thyasira croulinensis Jeffreys, 1874 Thyasira cycladia S. Wood, 1853 Thyasira cygnus Dall, 1916 Thyasira elliptica Verrill and Bush, 1898 Thyasira equalis (A. E. Verrill and Bush, 1898) Thyasira eumyaria M. Sars, 1870 Thyasira flexuosa (Montagu, 1803) Thyasira gouldii (Philippi, 1845) Thyasira grandis Verrill and Smith, 1885 Thyasira granulosa di Monterosato, 1874 Thyasira incrassatus (Jeffreys, 1876) Thyasira obsoleta (Verrill and Bush, 1898) Thyasira ovoidea Dall, 1889 Thyasira plicata Verrill and Smith, 1885 Thyasira pygmaea Verrill and Bush, 1898 Thyasira rotunda Jeffreys, 1881 Thyasira simplex A. E. Verrill and Bush, 1898 Thyasira subovata Jeffreys, 1881 Thyasira subtrigona (Jeffreys, 1858) Thyasira succisa (Jeffreys, 1876) Thyasira tortuosa Jeffreys, 1881 Thyasira tricarinata Dall, 1916 Thyasira triseriata Thyasira trisinuata (d'Orbigny, 1842) Thyonicola americana Tikasingh, 1961 Thyonicola americanus Tikasingh, 1961 Thysanophora horni (Gabb, 1866) Thysanophora hornii (Gabb, 1866) Thysanophora plagioptycha (Shuttleworth, 1854) Thysanoteuthis danae (Joubin, 1933) Thysanoteuthis nuchalis Pfeffer, 1912 Thysanoteuthis rhombus Troschel, 1857 Timoclea grus (Holmes, 1858) Timoclea ovata (Pennant, 1777) Timoclea pygmaea (Lamarck, 1818) Tindaria acinula (Dall, 1890) Tindaria brunnea Dall, 1916 Tindaria cervola Dall, 1916 Tindaria compressa Tindaria dicofania Dall, 1916 Tindaria kennerlyi Dall, 1897 Tindaria miniscula Saunders and Allen, 1977 Tindaria panamensis Titiscania limacina Bergh, 1890 Tivela abaconis Dall, 1902 Tivela floridana Rehder, 1939 Tivela mactroides (Born, 1778) Tivela stultorum (Mawe, 1823) Tochuina tetraquetra (Pallas, 1788) Todarodes angolensis Adam, 1962 Todarodes filippovae Adam, 1975 Todarodes pacificus (Steenstrup, 1880) Todarodes sagittatus (Lamarck, 1798) Todaropsis eblanae (Ball, 1841) Tomburchus redondoensis (Burch, 1941) Tomura bicaudata (Pilsbry and McGinty, 1946) Tonicella insignis (Reeve, 1847) Tonicella lineata (W. Wood, 1815) Tonicella marmorea (Fabricius, 1780) Tonicella rubra (Linnaeus, 1767) Tonicella sitkensis (Middendorff, 1846) Tonicia pustulifera Dall, 1919 Tonicia schrammi (Shuttleworth, 1856) Tonna galea (Linnaeus, 1758) Tonna maculosa (Dillwyn, 1817) Tonna pennata (Morch, 1852) Torellia ammonia Dall, 1919 Torellia cingulata Verrill Torellia delicata (Philippi, 1844) Torellia fimbriata A. E. Verrill and S. Smith, 1882 Torellia vallonia Dall, 1919 Torellia vestita Jeffreys, 1867 Tornatina inconspicua (Olsson and McGinty, 1958) Tornus basiglabra Tornus calianus (Dall, 1919) Tornus galaensis Tornus greyana Tornus laevicarinatus Toxolasma corvunculus (Lea, 1868) Toxolasma cylindrellus (Lea, 1868) Toxolasma lividum Rafinesque, 1831 Toxolasma parvum (Barnes, 1823) Toxolasma paulum (Lea, 1840) Toxolasma pullus (Conrad, 1838) Toxolasma texasiense (Lea, 1857) Trabecula laxa (Dall and Bartsch, 1909) Trachycardium egmontianum (Shuttleworth, 1856) Trachycardium isocardia (Linnaeus, 1758) Trachycardium magnum (Linnaeus, 1758) Trachycardium muricatum (Linnaeus, 1758) Trachycardium quadragenarium (Conrad, 1837) Trachypollia didyma (Swengel, 1943) Trachypollia lugubris (C. B. Adams, 1852) Trachypollia nodulosa (C. B. Adams, 1845) Trachypollia sclera Woodring, 1928 Trachypollia turricula (von Maltzan, 1884) Tralia ovula (Bruguiere, 1789) Transennella conradina Dall, 1884 Transennella cubaniana (d'Orbigny, 1842) Transennella stimpsoni Dall, 1902 Transennella tantilla (Gould, 1853) Trapania dalva Ev. Marcus, 1972 Trapania maculata Haefelfinger, 1960 Trapania pallida Kress, 1968 Trapania velox (Cockerell, 1901) Trapezidens angustior (Hanley & Theobald, 1872) Trapezidens dolichorhynchus (Tapparone Canefri, 1889) Trapezidens exolescens (Gould, 1843) Trapezidens mogaungensis Bolotov, Konopleva, Chan, Lunn, Win, Gofarov, Kondakov, Tomilova & Vikhrev, 2022 Trapezidens scutum (Sowerby, 1868) Trapezidens yeti Konopleva, Bolotov, Kondakov, Kononov, Gofarov, Tomilova, Lunn, Chan, Win & Vikhrev, 2020 Trapezium liratum (Reeve, 1843) Trapezoideus foliaceus (Gould, 1843) Trapezoideus lenya Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Trapezoideus mitanensis Bolotov, Konopleva, Than Win, Kondakov & Vikhrev in Bolotov et al., 2022 Trapezoideus subviridis Pfeiffer, Graf, Cummings & Page, 2021 Trapezoideus thachiadensis Konopleva, Lheknim, Sriwoon, Kondakov, Vikhrev & Bolotov in Konopleva et al., 2023 Tremoctopus gelatus Thomas, 1977 Tremoctopus violaceus Chiaie, 1830 in 1823-1831 Tresus allomyax Coan and Valentich Scott, 2000 Tresus capax (Gould, 1850) Tresus nuttallii (Conrad, 1837) Tresus pajaroanus (Conrad, 1857) Trichia hispida (Linnaeus, 1758) Trichia striolata (Pfeiffer, 1828) Trichotropis alba (Bouchet and Waren, 1985) Trichotropis bicarinata (G. B. Sowerby I, 1825) Trichotropis borealis Broderip and G. B. Sowerby I, 1829 Trichotropis cancellata Hinds, 1843 Trichotropis conica Moller, 1842 Trichotropis coronata Gould, 1860 Trichotropis fuscoapicata (Bouchet and Waren, 1985) Trichotropis inflata Friele, 1879 Trichotropis insignis Middendorff, 1849 Trichotropis kroyeri Philippi, 1849 Trichotropis migrans Dall, 1881 Trichotropis subsuratus Tricolia adamsi (Philippi, 1853) Tricolia affinis (C. B. Adams, 1850) Tricolia beaui Robertson, 1958 Tricolia bella (M. Smith, 1937) Tricolia compta (Gould, 1855) Tricolia cruenta Robertson, 1958 Tricolia cyclostoma (Carpenter, 1864) Tricolia pterocladica Tricolia pulloides (Carpenter, 1865) Tricolia pullus Linnaeus, 1758 Tricolia substriata (Carpenter, 1864) Tricolia tesselata (Potiez and Michaud, 1838) Tricolia tessellata (Potiez and Michaud, 1838) Tricolia thalassicola Robertson, 1958 Tricolia variabilis Tricolia variegata (Carpenter, 1864) Trigoniocardia antillarum (d'Orbigny, 1842) Trigoniocardia ovuloides (Reeve, 1845) Trigonostoma rugosum (Lamarck, 1822) Trigonostoma tenerum (Philippi, 1848) Trigonulina ornata (d'Orbigny, 1842) Trilobopsis loricata (Gould, 1846) Trilobopsis penitens (Hanna and Rixford, 1923) Trilobopsis roperi (Pilsbry, 1889) Trilobopsis tehamana (Pilsbry, 1928) Trilobopsis trachypepla (S. S. Berry, 1933) Trimusculus carinatus (Dall, 1870) Trimusculus reticulatus (G. B. Sowerby I, 1835) Trinchesia amoena Trinchesia caerulea Trinchesia concinna Trinchesia foliata Trinchesia perca (Marcus, 1958) Trinchesia veronica Verrill, 1880 Trinchesia viridis Triodopsis alabamensis (Pilsbry, 1902) Triodopsis albolabris (Say, 1816) Triodopsis alleni (Sampson, 1883) Triodopsis anteridon Pilsbry, 1940 Triodopsis burchi Hubricht, 1950 Triodopsis caroliniensis (I. Lea, 1834) Triodopsis chadwicki (Ferriss, 1907) Triodopsis claibornensis Lutz, 1950 Triodopsis complanata (Pilsbry, 1898) Triodopsis cragini Call, 1886 Triodopsis denotata (Ferussac, 1821) Triodopsis dentifera (A. Binney, 1837) Triodopsis discoidea (Pilsbry, 1904) Triodopsis divesta (Gould, 1848) Triodopsis fallax (Say, 1825) Triodopsis fosteri (F. C. Baker, 1921) Triodopsis fradulenta (Pilsbry, 1894) Triodopsis fulciden Hubricht, 1952 Triodopsis fulcidens Hubricht, 1952 Triodopsis henriettae (Mazyck, 1877) Triodopsis hopetonensis (Shuttleworth, 1852) Triodopsis juxtidens (Pilsbry, 1894) Triodopsis lioderma (Pilsbry, 1902) Triodopsis major (A. Binney, 1937) Triodopsis maratima (Pilsbry, 1890) Triodopsis messana Hubricht, 1952 Triodopsis multilineata (Say, 1821) Triodopsis neglecta (Pilsbry, 1899) Triodopsis obsoleta (Pilsbry, 1894) Triodopsis obstricta (Say, 1821) Triodopsis occidentalis (Pilsbry and Ferriss, 1894) Triodopsis palustris Hubricht, 1958 Triodopsis pendula Hubricht, 1952 Triodopsis picea Hubricht, 1958 Triodopsis platysayoides (Brooks, 1933) Triodopsis rugosa Brooks and MacMillan, 1940 Triodopsis soelneri (J. B. Henderson, 1907) Triodopsis tennesseensis (Walker and Pilsbry, 1902) Triodopsis tridentata (Say, 1816) Triodopsis vannostrandi (Bland, 1875) Triodopsis vulgata Pilsbry, 1940 Triodopsis vultuosa (Gould, 1848) Triopha aurantica Cockerel, 1908 Triopha carpenteri (Stearns, 1873) Triopha catalinae (J. G. Cooper, 1863) Triopha maculata MacFarland, 1905 Triopha occidentalis (Fewkes, 1889) Triphora ammonia Triphora callipyrga (Bartsch, 1907) Triphora calva Faber and Moolenbeek, 1991 Triphora carpenteri (Bartsch, 1907) Triphora catalinensis (Bartsch, 1907) Triphora compsa Dall, 1927 Triphora decorata (C. B. Adams, 1850) Triphora intermedia (Dall, 1881) Triphora lilacina (Dall, 1889) Triphora longissima (Dall, 1881) Triphora melanura (C. B. Adams, 1850) Triphora montereyensis (Bartsch, 1907) Triphora nigrocincta (C. B. Adams, 1839) Triphora ornata (Deshayes, 1832) Triphora pedroana (Bartsch, 1907) Triphora peninsularis (Bartsch, 1907) Triphora penninsularis (Bartsch, 1907) Triphora perversa Triphora pulchella (C. B. Adams, 1850) Triphora pyrrha (J. B. Henderson and Bartsch, 1914) Triphora stearnsi (Bartsch, 1907) Triphora triserialis (Dall, 1881) Triphora turristhomae (Holton, 1802) Triplodon chodo Mansur & Pimpão, 2008 Triplodon corrugatus (Lamarck, 1819) Triptychus niveus Morch, 1875 Tritonia bayeri Ev. Marcus and Er. Marcus, 1967 Tritonia diomedea Bergh, 1894 Tritonia episcopalis Bouchet, 1977 Tritonia exsulans Bergh, 1894 Tritonia festiva (Stearns, 1873) Tritonia griegi Edhner, 1922 Tritonia hombergii Cuvier, 1802 Tritonia lineata Tritonia manicata Deshayes, 1853 Tritonia myrakeenae Bertsch and Mozqueira, 1986 Tritonia nilsodhneri Marcus, 1983 Tritonia odhneri Tritonia palmeri (J. G. Cooper, 1862) Tritonia plebeia Johnston, 1828 Tritonia wellsi Er. Marcus, 1961 Tritonidoxa wellsi (Er. Marcus, 1961) Tritoniopsis frydis Er. Marcus and Ev. Marcus, 1970 Tritonoharpa lanceolata (Menke, 1828) Trivia antillarum Trivia arctica Trivia californiana (Gray, 1827) Trivia candidula Gaskoin, 1835 Trivia maltbiana Schwengel and McGinty, 1942 Trivia monacha Trivia nix (Schilder, 1922) Trivia pediculus (Linnaeus, 1758) Trivia quadripunctata (Gray, 1827) Trivia ritteri Raymond, 1903 Trivia solandri (Sowerby, 1832) Trivia suffusa (Gray, 1832) Trochaclis islandica Warren, 1989 Trochoidea elegans (Gmelin, 1791) Trochus intextus Trophon cerrosensis Dall, 1891 Trophon muricatus Trophonopsis alaskanus (Dall, 1902) Trophonopsis beringi (Dall, 1902) Trophonopsis cepulus (Sowerby, 1880) Trophonopsis clathratus (Linnaeus, 1758) Trophonopsis cymatus (Dall, 1902) Trophonopsis dalli (Kobelt, 1878) Trophonopsis elegantulus (Dall, 1907) Trophonopsis fabricii (Beck, 1842) Trophonopsis kamchatkana (Dall, 1902) Trophonopsis keepi (Strong and Hertlein, 1937) Trophonopsis lasius (Dall, 1919) Trophonopsis macouni (Dall, 1910) Trophonopsis orpheus (Gould, 1849) Trophonopsis pacificus (Dall, 1902) Trophonopsis paucicostatus Trophonopsis rotundatus (Dall, 1902) Trophonopsis scitulus (Dall, 1891) Trophonopsis staphylinus (Dall, 1919) Trophonopsis stuarti (E. A. Smith, 1880) Trophonopsis tenuisculptus Carpenter Trophonopsis truncatus (Strom, 1768) Truncatella bahamensis Clench and Turner, 1948 Truncatella barbadensis Pfeiffer, 1856 Truncatella californica Pfeiffer, 1857 Truncatella caribaeensis Reeve, 1842 Truncatella clathrus Lowe, 1932 Truncatella floridana Hubricht, 1983 Truncatella pulchella Pfeiffer, 1839 Truncatella regina Hubricht, 1983 Truncatella scalaris (Michaud, 1830) Truncatella stimpsoni Stearns, 1872 Truncatella stimpsonii Stearns, 1872 Truncatella subcylindrica Linnaeus, 1758 Truncilla cognata (Lea, 1860) Truncilla donaciformis (Lea, 1828) Truncilla macrodon (Lea, 1859) Truncilla truncata Rafinesque, 1820 Tryonia aequicostata (Pilsbry, 1890) Tryonia angulata Hershler and Sada, 1987 Tryonia brunei Taylor, 1987 Tryonia cheatumi (Pilsbry, 1935) Tryonia circumstriata (Leonard and Ho, 1960) Tryonia clathrata Stimpson, 1865 Tryonia diaboli (Pilsbry and Ferriss, 1906) Tryonia elata Hershler and Sada, 1987 Tryonia ericae Hershler and Sada, 1987 Tryonia gilae Taylor, 1987 Tryonia imitator (Pilsbry, 1899) Tryonia infernalis Hershler, Liu and Simpson, 2015 Tryonia margae Hershler, 1989 Tryonia metcalfi Hershler, Liu and Landye, 2011 Tryonia monitorae Hershler, 1999 Tryonia oasiensis Hershler, Liu and Landye, 2011 Tryonia porrecta (Mighels, 1845) Tryonia quitobaquitae Hershler, 1988 Tryonia rowlandsi Hershler, 1989 Tryonia salina Hershler, 1989 Tryonia variegata Hershler and Sada, 1987 Tulotoma magnifica (Conrad, 1834) Turbinella wilsoni Conrad, 1847 Turbo cailletii P. Fischer and Bernardi, 1856 Turbo canaliculatus Hermann, 1781 Turbo castanea Gmelin, 1791 Turbo fluctuosus Wood, 1828 Turbo haraldi Robertson, 1957 Turbo petholatus Linnaeus, 1758 Turbo sandwicensis Pease, 1861 Turbonilla abreojensis Dall and Bartsch, 1909 Turbonilla abrupta Turbonilla acra Dall and Bartsch, 1909 Turbonilla adusta Dall and Bartsch, 1909 Turbonilla aepynota Dall and Bartsch, 1909 Turbonilla aequalis (Say, 1827) Turbonilla alarconi Strong, 1949 Turbonilla alaskana Dall and Bartsch, 1909 Turbonilla alfredi Abbott, 1958 Turbonilla almejasensis Bartsch, 1917 Turbonilla almo Dall and Bartsch, 1909 Turbonilla anira Dall and Bartsch, 1927 Turbonilla antestriata Dall and Bartsch, 1907 Turbonilla aragoni Dall and Bartsch, 1909 Turbonilla aresta Dall and Bartsch, 1909 Turbonilla aripana Strong, 1949 Turbonilla asuncionis Strong, 1949 Turbonilla attrita Dall and Bartsch, 1909 Turbonilla aurantia (Carpenter, 1864) Turbonilla auricoma Dall and Bartsch, 1903 Turbonilla azteca Baker, Hanna, and Strong, 1928 Turbonilla baegerti Bartsch, 1917 Turbonilla bakeri Bartsch, 1912 Turbonilla barcleyensis Bartsch, 1917 Turbonilla barkleyensis Bartsch, 1917 Turbonilla bartolomensis Bartsch, 1917 Turbonilla belotheca Dall, 1889 Turbonilla burchi M. Gordon, 1938 Turbonilla bushiana Verrill, 1882 Turbonilla buteonis Bartsch, 1909 Turbonilla buttoni Dall and Bartsch, 1909 Turbonilla cabrilloi Bartsch, 1917 Turbonilla callia Dall and Bartsch, 1909 Turbonilla callimene Bartsch, 1912 Turbonilla campanellae (Philippi, 1836) Turbonilla canadensis Bartsch, 1917 Turbonilla canfieldi Dall and Bartsch, 1907 Turbonilla carpenteri Dall and Bartsch, 1909 Turbonilla castanea (Keep, 1887) Turbonilla castanella Dall, 1908 Turbonilla centrota Dall and Bartsch, 1909 Turbonilla ceralva Dall and Bartsch, 1909 Turbonilla chalcana Baker, Hanna, and Strong, 1928 Turbonilla chocolata (Carpenter, 1864) Turbonilla clarinda Bartsch, 1912 Turbonilla clementina Bartsch, 1927 Turbonilla cochimana Strong, 1949 Turbonilla conoma Bartsch In Dall, 1927 Turbonilla conradi Bush, 1899 Turbonilla cookeana Turbonilla coomansi Van Aartsen, 1994 Turbonilla cornelliana Turbonilla corsoensis Bartsch, 1917 Turbonilla cortezi Bartsch, 1917 Turbonilla coyotensis Baker, Hanna, and Strong, 1928 Turbonilla curta Dall, 1889 Turbonilla dalli Bush, 1899 Turbonilla delmontana Bartsch, 1937 Turbonilla diegensis Dall and Bartsch, 1909 Turbonilla dinora Bartsch, 1912 Turbonilla domingana Hertlein and Strong, 1951 Turbonilla dora Bartsch, 1917 Turbonilla dracona Bartsch, 1912 Turbonilla edwardensis Bartsch, 1909 Turbonilla electra Bartsch In Dall, 1927 Turbonilla elegantissima Turbonilla elegantula A. E. Verrill, 1882 Turbonilla emertoni Verrill, 1882 Turbonilla encella Bartsch, 1912 Turbonilla engbergi Bartsch, 1920 Turbonilla enna Bartsch, 1927 Turbonilla eschscholtzi Dall and Bartsch, 1907 Turbonilla eucosmobasis Dall and Bartsch, 1907 Turbonilla eva Bartsch, 1917 Turbonilla excolpa Turbonilla exilis (C. B. Adams, 1850) Turbonilla eyerdami Bartsch, 1927 Turbonilla fackenthallae A. G. Smith and M. Gordon, 1948 Turbonilla franciscana Bartsch, 1917 Turbonilla francisquitana Turbonilla gabbiana (J. G. Cooper, 1867) Turbonilla gilli Dall and Bartsch, 1907 Turbonilla gloriosa Bartsch, 1912 Turbonilla gonzagensis Baker, Hanna, and Strong, 1928 Turbonilla grandis Verrill, 1885 Turbonilla grippi Bartsch, 1912 Turbonilla guaicurana Strong, 1949 Turbonilla halibrecta Dall and Bartsch, 1909 Turbonilla halidoma Dall and Bartsch, 1909 Turbonilla halistrepta Dall and Bartsch, 1909 Turbonilla haycocki Dall and Bartsch, 1911 Turbonilla hecuba Dall and Bartsch, 1913 Turbonilla hemphilli Bush, 1899 Turbonilla hespera Bartsch In Dall, 1927 Turbonilla heterolopha Dall and Bartsch, 1909 Turbonilla histias Dall and Bartsch, 1909 Turbonilla hypolispa Dall and Bartsch, 1909 Turbonilla idothea Turbonilla ignacia Turbonilla ilfa Bartsch, 1927 Turbonilla ina Bartsch, 1917 Turbonilla incisa Bush, 1899 Turbonilla insularis Dall and Simpson, 1901 Turbonilla interrupta (Totten, 1835) Turbonilla ista Bartsch, 1917 Turbonilla jewetti Dall and Bartsch, 1909 Turbonilla johnsoni Baker, Hanna, and Strong, 1928 Turbonilla juani Bartsch, 1917 Turbonilla kaliwana Strong, 1949 Turbonilla kelseyi Dall and Bartsch, 1909 Turbonilla kincaidi Bartsch, 1921 Turbonilla kurtzii Mazyck, 1913 Turbonilla laevis (C. B. Adams, 1850) Turbonilla laminata (Carpenter, 1864) Turbonilla lamna Bartsch, 1917 Turbonilla lara Dall and Bartsch, 1909 Turbonilla larunda Dall and Bartsch, 1909 Turbonilla lazaroensis Bartsch, 1917 Turbonilla lepta Dall and Bartsch, 1909 Turbonilla leta Bartsch In Dall, 1927 Turbonilla levis (C. B. Adams, 1850) Turbonilla lituyana Dall and Bartsch, 1909 Turbonilla lordi (E. A. Smith, 1880) Turbonilla lordii (E. A. Smith, 1880) Turbonilla louiseae Clarke, 1954 Turbonilla lucana Dall and Bartsch, 1909 Turbonilla lyalli Dall and Bartsch, 1907 Turbonilla macbridei Dall and Bartsch, 1909 Turbonilla macouni Dall and Bartsch, 1910 Turbonilla magdalinensis Bartsch, 1927 Turbonilla mariana Bartsch, 1917 Turbonilla marshalli Dall and Bartsch, 1909 Turbonilla mayana Baker, Hanna, and Strong, 1928 Turbonilla melea Bartsch In Dall, 1927 Turbonilla middendorffi Bartsch, 1927 Turbonilla middendorfi Bartsch, 1927 Turbonilla mighelsi Bartsch, 1909 Turbonilla miona Bartsch In Dall, 1927 Turbonilla mioperplicatulus Sacco, 1892 Turbonilla morchi Dall and Bartsch, 1907 Turbonilla multicostata (C. B. Adams, 1850) Turbonilla muricatoides Dall and Bartsch, 1907 Turbonilla myia Bartsch In Dall, 1927 Turbonilla nahuana Baker, Hanna, and Strong, 1928 Turbonilla nema Bartsch In Dall, 1927 Turbonilla nereia Dall and Bartsch, 1909 Turbonilla newcombei Dall and Bartsch, 1907 Turbonilla newcombiei Dall and Bartsch, 1907 Turbonilla nivea (Stimpson, 1851) Turbonilla nonica Bartsch In Dall, 1927 Turbonilla nuttingi Dall and Bartsch, 1909 Turbonilla obeliscus (C. B. Adams, 1850) Turbonilla obesa Dall and Bartsch, 1909 Turbonilla oregonensis Dall and Bartsch, 1907 Turbonilla pauli A. G. Smith and M. Gordon, 1958 Turbonilla penascoencis Lowe, 1935 Turbonilla pentalopha Dall and Bartsch, 1903 Turbonilla pequensis Dall and Bartsch, 1909 Turbonilla pericuana Strong, 1949 Turbonilla periscelida Dall and Bartsch, 1909 Turbonilla perlepida A. E. Verrill, 1885 Turbonilla pesa Dall and Bartsch, 1910 Turbonilla pluto Dall and Bartsch, 1909 Turbonilla pocahontasae J. B. Henderson and Bartsch, 1914 Turbonilla polita (A. E. Verrill, 1872) Turbonilla portoricana Dall and Simpson, 1901 Turbonilla powhatani J. B. Henderson and Bartsch, 1914 Turbonilla protracta Dall, 1892 Turbonilla pugetensis Bartsch, 1917 Turbonilla puncta (C. B. Adams, 1850) Turbonilla punicea Dall, 1884 Turbonilla pupoides D'Orbigny, 1842 Turbonilla pusilla (C. B. Adams, 1850) Turbonilla pyrrha Bartsch In Dall, 1927 Turbonilla rathbuni A. E. Verrill and S. Smith, 1880 Turbonilla raymondi Dall and Bartsch, 1909 Turbonilla recta Dall and Bartsch, 1909 Turbonilla regina Dall and Bartsch, 1909 Turbonilla reticulata (C. B. Adams, 1850) Turbonilla rhea Bartsch In Dall, 1927 Turbonilla ridgwayi Dall and Bartsch, 1909 Turbonilla riisei Morch, 1875 Turbonilla rinella Dall and Bartsch, 1910 Turbonilla sanctorum Dall and Bartsch, 1909 Turbonilla santarosana Dall and Bartsch, 1909 Turbonilla scammonensis Bartsch, 1912 Turbonilla schmitti Bartsch, 1917 Turbonilla sebastiani Bartsch, 1917 Turbonilla serrae Dall and Bartsch, 1907 Turbonilla shuyakensis Bartsch, 1927 Turbonilla signae Dall and Bartsch, 1909 Turbonilla simpsoni Dall and Bartsch, 1909 Turbonilla sirena Turbonilla stelleri Bartsch, 1927 Turbonilla stillmani A. G. Smith and M. Gordon, 1948 Turbonilla stimpsoni Bush, 1899 Turbonilla striatula Turbonilla stricta A. E. Verrill, 1873 Turbonilla strongi Willett, 1931 Turbonilla styliformis Morch, 1875 Turbonilla stylina (Carpenter, 1864) Turbonilla subulata (C. B. Adams, 1850) Turbonilla sumneri Bartsch, 1909 Turbonilla superba Dall and Bartsch, 1909 Turbonilla swani Dall and Bartsch, 1909 Turbonilla talma Dall and Bartsch, 1910 Turbonilla taylori Dall and Bartsch, 1907 Turbonilla tecalo Bartsch, 1917 Turbonilla tenuicula (Gould, 1853) Turbonilla textilis (Kurtz, 1860) Turbonilla theona Bartsch In Dall, 1927 Turbonilla tolteca Baker, Hanna, and Strong, 1928 Turbonilla torquata (Gould, 1853) Turbonilla toyatani J. B. Henderson and Bartsch, 1914 Turbonilla tremperi Bartsch, 1917 Turbonilla tridentata (Carpenter, 1864) Turbonilla typica Dall and Bartsch In Arnold, 1903 Turbonilla ulloa Bartsch, 1917 Turbonilla unilirata Bush, 1899 Turbonilla valida A. E. Verrill and Bush, 1900 Turbonilla vancouverensis (Baird, 1863) Turbonilla verrilli Bartsch, 1909 Turbonilla verrillii Bartsch, 1909 Turbonilla vexativa Dall and Bartsch, 1909 Turbonilla virga Dall, 1884 Turbonilla virgata Dall, 1892 Turbonilla virginica J. B. Henderson and Bartsch, 1914 Turbonilla virgo (Carpenter, 1864) Turbonilla viridaria Dall, 1884 Turbonilla viscainoi Bartsch, 1917 Turbonilla vivesi Herlein and Strong, 1951 Turbonilla weldi Dall and Bartsch, 1909 Turbonilla whiteavesi Bartsch, 1909 Turbonilla wickhami Dall and Bartsch, 1909 Turbonilla willetti A. G. Smith and M. Gordon, 1948 Turbonilla wrightsvillensis Powell, 1981 Turbonilla yolettae Hertlein and Strong, 1951 Turcica admirabilis S. S. Berry, 1969 Turcica caffea (Gabb, 1865) Turcica monilifera (A. Adams, 1854) Turrisipho dalli (Friele In Tyron, 1881) Turrisipho fenestratus (Turton, 1843) Turrisipho lachesis (Morch, 1869) Turrisipho moebii (Dunker and Metzger, 1874) Turritella acropora Dall, 1889 Turritella anactor S. S. Berry, 1957 Turritella clorionensis Hertlein and Strong, 1951 Turritella communis Turritella cooperi Carpenter, 1864 Turritella exoleta (Linnaeus, 1758) Turritella hookeri Reeve, 1849 Turritella jewetti Carpenter, 1864 Turritella lentiginosa Reeve, 1849 Turritella leucostoma Valenciennes, 1832 Turritella lindae Petuch, 1987 Turritella mariana Dall, 1908 Turritella nodulosa King and Broderip, 1832 Turritella orthosymmetrica S. S. Berry, 1953 Turritella parkeri J. H. McLean, 1970 Turritella variegata (Linnaeus, 1758) Turritella willetti J. H. McLean, 1970 Turritella yucatecanum Dall, 1881 Turritellopsis acicula (Stimpson, 1851) Turritellopsis stimpsoni Dall, 1919 Turtonia minuta (Fabricius, 1780) Tylodina americana Dall, 1890 Tylodina fungina Gabb, 1865 Tylodinella spongotheras Bertsch, 1980 Typhinellus sowerbii (Broderip, 1833) Typhis sowerbii Broderip, 1833 Typhlomangelia nivalis (Loven, 1846) Udosarx lyrata Webb, 1959 Umbilibalcis lata (Dall, 1889) Umbraculum umbraculum (Lightfoot, 1786) Unela nahantensis Doe, 1974 Unela remanei Er. Marcus, 1953 Unio abyssinicus Martens, 1866 Unio bruguierianus Bourguignat, 1853 Unio caffer Krauss, 1848 Unio carneus Küster, 1854 Unio courtillieri Hattemann, 1859 Unio crassus Philipsson in Retzius, 1788 Unio damascensis Lea, 1863 Unio delicatus Lea, 1863 Unio delphinus Spengler, 1793 Unio dembeae Reeve, 1865 Unio durieui Deshayes, 1847 Unio elongatulus C. Pfeiffer, 1825 Unio eucirrus Bourguignat, 1857 Unio foucauldianus Pallary, 1936 Unio gibbus Spengler, 1793 Unio hueti Bourguignat, 1855 Unio ionicus Drouët, 1879 Unio mancus Lamarck, 1819 Unio pictorum (Linnaeus, 1758) Unio ravoisieri Deshayes, 1847 Unio sesirmensis Kobelt, 1913 Unio terminalis Bourguignat, 1852 Unio tigridis Bourguignat, 1852 Unio tumidiformis da Silva e Castro, 1885 Unio tumidus Philipsson in Retzius, 1788 Uniomerus carolinianus (Bosc, 1801) Uniomerus columbensis (Lea, 1857) Uniomerus declivis (Say, 1831) Uniomerus tetralasmus (Say, 1831) Unionetta fabagina (Deshayes & Jullien, 1876) Urosalpinx cinerea (Say, 1822) Urosalpinx lurida (Middendorff, 1848) Urosalpinx macra A. E. Verrill, 1884 Urosalpinx perrugata (Conrad, 1846) Urosalpinx sclera Dall, 1919 Urosalpinx subangulata (Stearns, 1873) Urosalpinx tampaensis (Conrad, 1846) Uroteuthis abulati (Adam, 1955) Uroteuthis arabica (Ehrenberg, 1831) Uroteuthis bartschi Rehder, 1945 Uroteuthis bengalensis (Jothinayagam, 1987) Uroteuthis chinensis (Gray, 1849) Uroteuthis duvauceli (D'Orbigny, 1835 in Férussac and D'Orbigny, 1834-1848) Uroteuthis edulis (Hoyle, 1885) Uroteuthis noctiluca (Lu, Roper and Tait, 1985) Uroteuthis pickfordi (Adam, 1954) Uroteuthis reesi (Voss, 1962) Uroteuthis robsoni (Alexeyev, 1992) Uroteuthis sibogae (Adam, 1954) Uroteuthis singhalensis (Ortmann, 1891) Uroteuthis vossi (Nesis, 1982) Utterbackia imbecillis (Say, 1829) Utterbackia peggyae (R. I. Johnson, 1965) Utterbackia peninsularis Bogan & Hoeh, 1995 Utterbackiana couperiana (Lea, 1840) Utterbackiana hartfieldorum (Williams, Bogan & Garner, 2009) Utterbackiana heardi (Gordon & Hoeh, 1995) Utterbackiana implicata (Say, 1829) Utterbackiana suborbiculata (Say, 1831) Vallonia albula Sterki, 1893 Vallonia costata (Muller, 1774) Vallonia cyclophorella Sterki, 1892 Vallonia excentrica Sterki, 1893 Vallonia gracilicosta Reinhardt, 1883 Vallonia parvula Sterki, 1893 Vallonia perspectiva Sterki, 1893 Vallonia pulchella (Muller, 1774) Vallonia terraenovae Gerber, 1996 Valvata bicarinata Lea, 1841 Valvata humeralis Say, 1829 Valvata lewisi Currier, 1868 Valvata mergella Westerlund, 1883 Valvata perdepressa Walker, 1906 Valvata piscinalis (Muller, 1774) Valvata sincera Say, 1824 Valvata tricarinata (Say, 1817) Valvata utahensis Call, 1884 Valvata virens Tryon, 1863 Valvata winnebagoensis F. C. Baker, 1928 Vampyroteuthis infernalis Chun, 1903 Vanikoro acuta Vanikoro cancellata Lamarck, 1822 Vanikoro imbricata Vanikoro oxychone Morch, 1877 Varicopeza crystallina (Dall, 1881) Varicorbula gibba (Olivi, 1792) Varicorbula operculata (Philippi, 1848) Vasum capitellum (Linnaeus, 1758) Vasum cassiforme Kiener, 1841 Vasum globulus Lamarck, 1816 Vasum muricatum (Born, 1778) Velesunio ambiguus (Philippi, 1847) Velesunio angasi (Sowerby, 1867) Velesunio moretonicus (Reeve, 1865) Velesunio sentaniensis (Haas, 1924) Velesunio wilsonii (Lea, 1859) Velodona togata Chun, 1915 Velutina beringensis Velutina conica Dall, 1887 Velutina granulata Dall, 1919 Velutina laevigata Linnaeus Velutina lanata Velutina lanigera Moller, 1842 Velutina nana Bartsch, 1950 Velutina plicatilis (Muller, 1776) Velutina prolongata Carpenter, 1864 Velutina rubra Willett, 1919 Velutina undata (T. Brown, 1839) Velutina velutina (Muller, 1776) Venericardia borealis Venericardia tridentata Venerupis aurea (Gmelin, 1791) Venerupis decussata Linnaeus, 1758 Venerupis philippinarum (A. Adams and Reeve, 1850) Venerupis senegalensis (Gmelin, 1791) Ventridens acerra (J. Lewis, 1870) Ventridens arcellus Hubricht, 1976 Ventridens brittsi (Pilsbry, 1892) Ventridens cerinoideus (Anthony, 1865) Ventridens coelaxis (Pilsbry, 1899) Ventridens collisella (Pilsbry, 1896) Ventridens decussatus (Walker and Pilsbry, 1902) Ventridens demissus (A. Binney, 1843) Ventridens eutropis Pilsbry, 1946 Ventridens gularis (Say, 1822) Ventridens intertextus (A. Binney, 1841) Ventridens lasmodon (Phillips, 1841) Ventridens lawae (W. G. Binney, 1892) Ventridens ligera (Say, 1821) Ventridens monodon Hubricht, 1964 Ventridens percallosus (Pilsbry, 1898) Ventridens pilsbryi Hubricht, 1964 Ventridens suppressus (Say, 1829) Ventridens theloides (Walker and Pilsbry, 1902) Ventridens virginicus (Vanatta, 1936) Ventridens volusiae (Pilsbry, 1900) Venus fasciata Venus gallina Venus ovata Venus verrucosa Linnaeus Venustaconcha constricta (Conrad, 1838) Venustaconcha ellipsiformis (Conrad, 1836) Venustaconcha pleasii (Marsh, 1891) Venustaconcha trabalis (Conrad, 1834) Venustaconcha troostensis (Lea, 1834) Veprecula brunonia Vermetus compactus Vermicularia fargoi Olsson, 1951 Vermicularia fewkesi (Yates, 1890) Vermicularia knorrii (Deshayes, 1843) Vermicularia radicula (Stimpson, 1851) Vermicularia spirata (Philippi, 1836) Veronicella sloanii (Cuvier, 1817) Verticordia acuticostata Philippi, 1884 Verticordia fischeriana Dall, 1881 Verticordia granulata Seguenza, 1876 Verticordia ornata (d'Orbigny, 1842) Verticordia seguenzae Dall, 1886 Verticordia transversa Locard, 1898 Verticordia trapezoides Sequenza, 1876 Verticordia triangularis Locard, 1898 Verticordia woodii E. A. Smith, 1885 Vertigo alabamensis G. H. Clapp, 1915 Vertigo allyniana S. S. Berry, 1919 Vertigo alpestris Alder, 1838 Vertigo andrusiana Pilsbry, 1899 Vertigo arthuri von Martens, 1882 Vertigo berryi Pilsbry, 1919 Vertigo binneyana Sterki, 1890 Vertigo bollesiana (E. S. Morse, 1865) Vertigo californica (Rowell, 1861) Vertigo clappi Brooks and Hunt, 1936 Vertigo columbiana (Pilsbry and Vanatta, 1900) Vertigo concinnula Cockerell, 1897 Vertigo conecuhensis G. H. Clapp, 1915 Vertigo dalliana Sterki, 1890 Vertigo elatior Sterki, 1894 Vertigo gouldi (A. Binney, 1843) Vertigo hebardi Vanatta, 1912 Vertigo hinkleyi Pilsbry, 1921 Vertigo idahoensis Pilsbry, 1934 Vertigo meramecensis Van Devender, 1979 Vertigo milium (Gould, 1840) Vertigo modesta (Say, 1824) Vertigo morsei Sterki, 1894 Vertigo nylanderi Sterki, 1909 Vertigo occidentalis Sterki, 1907 Vertigo oralis Sterki, 1898 Vertigo oscariana Sterki, 1890 Vertigo ovata Say, 1822 Vertigo paradoxa Sterki, 1900 Vertigo parvula Sterki, 1890 Vertigo perryi Sterki, 1905 Vertigo pygmaea (Draparnaud, 1801) Vertigo rowelli (Newcomb, 1860) Vertigo rugosula Sterki, 1890 Vertigo sterkii Pilsbry, 1919 Vertigo teskeyae Hubricht, 1961 Vertigo tridentata Wolf, 1870 Vertigo ventricosa (E. S. Morse, 1865) Vertigo wheeleri Pilsbry, 1928 Vesicomya angulata (Dall, 1896) Vesicomya atlantica (E. A. Smith, 1885) Vesicomya bruuni Filatova, 1969 Vesicomya caribbea Boss, 1967 Vesicomya cordata Boss, 1968 Vesicomya gigas (Dall, 1896) Vesicomya leeana (Dall, 1889) Vesicomya lepta (Dall, 1896) Vesicomya ovalis (Dall, 1896) Vesicomya pilula (Dall, 1881) Vesicomya smithii Dall, 1889 Vesicomya stearnsii (Dall, 1895) Vesicomya vesica (Dall, 1886) Vespericola armiger (Ancey, 1881) Vespericola columbianus (I. Lea, 1838) Vespericola eritrichius (S. S. Berry, 1939) Vespericola haplus (S. S. Berry, 1933) Vespericola karakorum Talmadge, 1962 Vespericola karokorum Talmadge, 1962 Vespericola klamathicus Roth and W. B. Miller, 1995 Vespericola marinensis Roth and W. B. Miller, 1993 Vespericola megasoma (Pilsbry, 1928) Vespericola orius (S. S. Berry, 1933) Vespericola pilosus (J. Henderson, 1928) Vespericola pinicola (S. S. Berry, 1916) Vespericola pressleyi Roth, 1985 Vespericola rothi Cordero and W. B. Miller, 1995 Vespericola scotti Cordero and W. B. Miller, 1995 Vespericola shasta (S. S. Berry, 1921) Vespericola sierranus (S. S. Berry, 1921) Vexillum albocinctum (C. B. Adams, 1845) Vexillum bellum Vexillum castum Vexillum dermestinum (Lamarck, 1811) Vexillum epiphaneum (Rehder, 1943) Vexillum exiguum (C. B. Adams, 1845) Vexillum gemmatum (G. B. Sowerby II, 1874) Vexillum hanleyi (Dohrn, 1862) Vexillum hendersoni (Dall, 1927) Vexillum histrio (Reeve, 1844) Vexillum laterculatum (G. B. Sowerby II, 1874) Vexillum macrospirum Vexillum micra Vexillum moisei McGinty, 1955 Vexillum puella (Reeve, 1845) Vexillum pulchellum (Reeve, 1844) Vexillum radix Vexillum styria (Dall, 1889) Vexillum sykesi (Melvill, 1925) Vexillum trophonium (Dall, 1889) Vexillum unifasciatum Vexillum wandoense (Holmes, 1860) Vexillum wolfei Vexillum zythochroa (Melvill, 1888) Vilasina seminuda (Dall, 1897) Vilasina vernicosa (Middendorff, 1849) Villosa amygdala (Lea, 1843) Villosa delumbis (Conrad, 1834) Villosa vibex (Conrad, 1834) Villosa villosa (B. H. Wright, 1898) Virgus beccarianus (Tapparone Canefri, 1883) Viridrillia cervina Bartsch, 1943 Viridrillia hendersoni Bartsch, 1943 Viridrillia williami Bartsch, 1943 Vitrea contracta (Westerlund, 1871) Vitreledonella alberti Joubin, 1924 Vitreledonella richardi Joubin, 1918 Vitreolina arcuata (C. B. Adams, 1850) Vitreolina columbiana (Bartsch, 1917) Vitreolina macra (Bartsch, 1917) Vitreolina yod (Carpenter, 1857) Vitricithra marmorata Vitricythara elata (Dall, 1889) Vitricythara metria (Dall, 1903) Vitrina angelicae Beck, 1837 Vitrina pellucida (Muller, 1774) Vitrinella alaskensis Bartsch, 1907 Vitrinella berryi Bartsch, 1907 Vitrinella bicaudata Pilsbry and McGinty, 1946 Vitrinella blakei Rehder, 1944 Vitrinella carinata (Orbigny, 1842) Vitrinella carnifex Dall, 1927 Vitrinella cerion Dall, 1927 Vitrinella columbiana Bartsch, 1921 Vitrinella diaphana (d'Orbigny, 1842) Vitrinella elegans Olsson and McGinty, 1958 Vitrinella eshnaurae Bartsch, 1907 Vitrinella filifera Pilsbry and McGinty, 1946 Vitrinella floridana Pilsbry and McGinty, 1946 Vitrinella georgiana Dall, 1927 Vitrinella helicoidea C. B. Adams, 1850 Vitrinella hemphilli Vanatta, 1913 Vitrinella lucasana (Baker, Hanna and Strong, 1938) Vitrinella massarita Dall, 1927 Vitrinella multistriata (A. E. Verrill, 1884) Vitrinella oldroydi Bartsch, 1907 Vitrinella praecox Pilsbry and McGinty, 1946 Vitrinella rhyssa Dall, 1927 Vitrinella smithi Bartsch, 1927 Vitrinella stearnsi Bartsch, 1907 Vitrinella terminalis Pilsbry and McGinty, 1946 Vitrinella texana D. Moore, 1965 Vitrinella thomasi (Pilsbry, 1945) Vitrinella tiburonensis Durham, 1942 Vitrinella tryoni Bush, 1897 Vitrinella williamsoni Dall, 1892 Vitrinizonites latissimus (J. Lewis, 1875) Vitrinorbis diegensis (Bartsch, 1907) Viviparus georgianus (Lea, 1834) Viviparus goodrichi Archer, 1933 Viviparus intertextus (Say, 1829) Viviparus japonicus (Von Martens, 1860) Viviparus limi Pilsbry, 1918 Viviparus malleatus (Reeve, 1863) Viviparus subpurpureus (Say, 1829) Voluta musica Linnaeus, 1758 Volutharpa ampullacea (Middendorff, 1848) Volutharpa perryi Volutomitra alaskana Dall, 1902 Volutomitra groenlandica (Moller, 1842) Volutopsion castaneum (Dall, 1877) Volutopsius behringi (Middendorff, 1849) Volutopsius castanea (Morch, 1858) Volutopsius fragilis (Dall, 1891) Volutopsius middendorffii (Dall, 1891) Volutopsius norwegicus (Gmelin, 1791) Volutopsius pallidus Tiba, 1973 Volutopsius regularis (Dall, 1873) Volutopsius trophonius Dall, 1902 Volva volva Linnaeus, 1758 Volvarina albolineata (d'Orbigny, 1842) Volvarina avena (Kiener, 1834) Volvarina lactea (Kiener, 1841) Volvarina subtriplicata (d'Orbigny, 1842) Volvarina taeniolata Morch, 1860 Volvatella bermudae K. B. Clark, 1982 Volvulella acuminatus Bruguiere, 1792 Volvulella californica Dall, 1919 Volvulella catharia Dall, 1919 Volvulella cylindrica (Carpenter, 1864) Volvulella panamica Dall, 1919 Volvulella paupercula (Watson, 1883) Volvulella persimilis (Morch, 1875) Volvulella recta (Morch, 1875) Volvulella texasiana Harry, 1967 Vorticifex effusa (Lea, 1856) Vorticifex solida (Dall, 1870) Vosseledone charrua Palacio, 1978 Walvisteuthis virilis Nesis and Nikitina, 1986 Watasenia scintillans (Berry, 1911) Webbhelix chadwicki (Ferriss, 1907) Webbhelix multilineata (Say, 1821) Westralunio albertisi Clench, 1957 Westralunio carteri Iredale, 1934 Westralunio flyensis (Tapparone Canefri, 1883) Williamia krebsii (Morch, 1877) Williamia peltoides (Carpenter, 1864) Williamia radiata (Pease, 1861) Wirenia argentea Odhner, 1921 Woodbridgea polystrigma (Dall, 1908) Woodbridgea williamsi S. S. Berry, 1953 Xanthodaphne bruneri (Verrill, 1884) Xanthodaphne charcotiana Bouchet and Waren, 1980 Xenophora caribaea Petit de la Saussaye, 1857 Xenophora conchyliophora (Born, 1780) Xenophora longleyi Bartsch, 1931 Xerarionta intercisa (W. G. Binney, 1857) Xerarionta kelletti (Forbes, 1850) Xerarionta kellettii (Forbes, 1850) Xerarionta redimita (W. G. Binney, 1858) Xerarionta stearnsiana (Gabb, 1868) Xerarionta tryoni (Newcomb, 1864) Xolotrema caroliniense (I. Lea, 1834) Xolotrema denotatum (Ferussac, 1821) Xolotrema fosteri (F. C. Baker, 1921) Xolotrema obstrictum (Say, 1821) Xolotrema occidentale (Pilsbry and Ferriss, 1907) Xylophaga abyssorum Dall, 1886 Xylophaga atlantica Richards, 1942 Xylophaga dorsalis (Turton, 1819) Xylophaga praestans E. A. Smith, 1903 Xylophaga washingtona Bartsch, 1921 Xyloredo naceli Turner, 1972 Xyloredo nooi Turner, 1972 Yaukthwa avaensis Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020 Yaukthwa baniensis (Bolotov, Konopleva, Vikhrev, Gofarov, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2020) Yaukthwa dalliana (Frierson, 1913) Yaukthwa elongatula Bolotov, Konopleva, Vikhrev, Lopes-Lima, Bogan, Lunn, Chan, Win, Aksenova et al., 2019 Yaukthwa inlenensis Konopleva, Pfeiffer, Vikhrev, Kondakov, Gofarov, Aksenova, Lunn, Chan & Bolotov, 2019 Yaukthwa nesemanni (Konopleva, Vikhrev & Bolotov in Bolotov et al., 2017) Yaukthwa paiensis Konopleva, Pfeiffer, Vikhrev, Kondakov, Gofarov, Aksenova, Lunn, Chan & Bolotov, 2019 Yaukthwa panhai (Konopleva, Bolotov & Kondakov in Bolotov et al., 2017) Yaukthwa peguensis (J. G. Anthony, 1865) Yaukthwa rectangularis (Tapparone Canefri, 1889) Yaukthwa zayleymanensis (Preston, 1912) Yoldia amygdalea Valenciennes, 1846 Yoldia beringiana Dall, 1916 Yoldia cooperii Gabb, 1865 Yoldia excavata Yoldia glacialis Gray, 1828 Yoldia hyperborea (Gould, 1841) Yoldia limatula (Say, 1831) Yoldia martyria Dall, 1897 Yoldia micrometrica (Sequenza, 1878) Yoldia myalis (Couthouy, 1838) Yoldia regularis A. E. Verrill, 1884 Yoldia sapotilla (Gould, 1841) Yoldia scissurata Dall, 1897 Yoldia secunda Dall, 1916 Yoldia seminuda Dall, 1871 Yoldia solenoides Dall, 1881 Yoldiella cecinella (Dall, 1916) Yoldiella curta Verrill and Bush, 1898 Yoldiella dicella Yoldiella dissimilis (A. E. Verrill and Bush, 1898) Yoldiella expansa (Jeffreys, 1876) Yoldiella fraterna (Verrill and Bush, 1898) Yoldiella frigida (Torell, 1859) Yoldiella inconspicua (A. E. Verrill and Bush, 1898) Yoldiella inflata (Verrill and Bush, 1897) Yoldiella insculpta (Jeffreys, 1879) Yoldiella intermedia (M. Sars, 1865) Yoldiella iris (Verrill and Bush, 1897) Yoldiella jeffreysi (Hidalgo, 1877) Yoldiella lenticula (Moller, 1842) Yoldiella lucida (Loven, 1846) Yoldiella nana (M. Sars, 1865) Yoldiella oleacina (Dall, 1916) Yoldiella orcia (Dall, 1916) Yoldiella philippiana (Nyst, 1844) Yoldiella profundorum (Melvill and Standen, 1912) Yoldiella propinqua (Leche, 1878) Yoldiella pusilla (Jeffreys, 1879) Yoldiella sanesia (Dall, 1916) Yoldiella siliqua (Reeve, 1855) Yoldiella striolata (Brugnone, 1876) Yoldiella subaequilatera (Jeffreys, 1879) Yoldiella subangulata (Verrill and Bush, 1898) Zachrysia auricoma (Ferussac, 1821) Zachrysia provisoria (Pfeiffer, 1858) Zacoleus idahoensis Pilsbry, 1903 Zafrona idalina (Duclos, 1840) Zafrona pulchella (de Blainville, 1829) Zafrona taylorae Petuch, 1987 Zebina browniana (d'Orbigny, 1842) Zebina coronata (Mohrenstern, 1860) Zebina laevigata (C. B. Adams, 1850) Zeidora bigelowi Farfante, 1947 Zeidora calceolina A. Adams, 1860 Zeidora flabellum (Dall, 1896) Zeidora naufraga Watson, 1883 Zirfaea crispata (Linnaeus, 1758) Zirfaea pilsbryi Lowe, 1931 Zonaria spadicea (Swainson, 1823) Zonites diegoensis Hemphill, 1892 Zonitoides arboreus (Say, 1816) Zonitoides elliotti (Redfield, 1856) Zonitoides kirbyi R. W. Fullington, 1974 Zonitoides lateumbilicatus (Pilsbry, 1895) Zonitoides limatulus (A. Binney, 1840) Zonitoides nitidus (Muller, 1774) Zonitoides patuloides (Pilsbry, 1895) Zonulispira sanibelensis (Bartsch and Rehder, 1939) Zoogenetes harpa (Say, 1824) Abra longicallis americana A. E. Verrill and Bush, 1898 Abra longicallis longicallis (Scacchi, 1834) Acteocina culcitella culcitella (Gould, 1853) Acteocina culcitella exima (Baird, 1863) Alvania beanii beanii (Hanley, 1844) Alvania beanii calathus (Hanley, 1850) Amnicola dalli dalli (Pilsbry and Beecher, 1892) Amnicola dalli johnsoni Pilsbry, 1899 Amphitretus pelagicus pelagicus Hoyle, 1885 Amphitretus pelagicus thielei Robson, 1930 Anachis avara avara (Say, 1822) Anachis avara brasiliana von Martens, 1897 Anachis coronata coronata (Sowerby, 1832) Anachis coronata hannana Hertlein and Strong, 1951 Anachis obesa obesa (C. B. Adams, 1845) Anachis obesa ostreicola Melvill, 1881 Antalis entale entale (Linnaeus, 1758) Antalis entale occidentale (Stimpson, 1851) Antalis entale stimpsoni Henderson, 1920 Antiplanes motojimai aquilonalis Kantor and Sysoev, 1991 Arcinella arcinella arcinella (Linnaeus, 1767) Arcinella arcinella californica (Dall, 1903) Argopecten irradians amplicostatus (Dall, 1898) Argopecten irradians concentricus (Say, 1822) Argopecten irradians irradians (Lamarck, 1819) Astarte crenata crenata (Gray, 1824) Astarte crenata subequilatera Sowerby, 1854 Astarte crenata whiteavesii Dall, 1903 Austrotrophon cerrosensis cerrosensis Axinopsida orbiculata inaegualis G. O. Sars, 1878 Axinopsida orbiculata orbiculata (G. O. Sars, 1878) Bathypolypus arcticus arcticus (Prosch, 1847) Bathypolypus arcticus proschi Muus, 1962 Beringius turtoni ossiani (Friele, 1879) Beringius turtoni turtoni (Bean, 1834) Berryteuthis magister magister (Berry, 1913) Berryteuthis magister nipponensis Okutani and Kubodera, 1987 Bittium asperum asperum Gabb, 1861 Bittium asperum lomaense Bartsch, 1911 Bittium eschrichtii eschrichtii (Middendorf, 1849) Bittium eschrichtii montereyense Bartsch, 1911 Bolitaena massyae massyae (Robson, 1924) Bolitaena massyae purpurea (Robson, 1930) Boreotrophon aculeatus aculeatus Boreotrophon aculeatus lacunellus (Dall, 1889) Buccinum angulosum angulosum J. E. Gray, 1838 Buccinum baerii baerii (Middendorff, 1848) Buccinum baerii polium Dall, 1907 Buccinum cyaneum cyaneum Bruguiere, 1792 Buccinum cyaneum patulum G. O. Sars, 1878 Buccinum cyaneum perdix Morch, 1868 Buccinum pemphigus major Dall, 1919 Buccinum pemphigus orotundum Dall, 1907 Buccinum pemphigus pemphigus Dall, 1907 Buccinum strigillatum fucanum Dall, 1907 Buccinum strigillatum strigillatum Dall, 1891 Bulla striata striata Bruguiere, 1792 Bulla striata umbilicata Roding, 1798 Bursa californica californica (Hinds, 1843) Bursa californica sonorana S. S. Berry, 1960 Bursa corrugata corrugata Bursa corrugata ponderosa (Reeve, 1844) Bursa granularis cubaniana (d'Orbigny, 1842) Bursa granularis granularis Roding, 1798 Bursa ranelloides ranelloides Bursa ranelloides tenuisculpta (Dautzenberg and H. Fischer, 1906) Bursa rhodostoma rhodostoma Bursa rhodostoma thomae (d'Orbigny, 1842) Bursa tenuisculpta natalensis Coelho and Matthews, 1970 Bursa tenuisculpta tenuisculpta (Dautzenberg and Fischer, 1906) Bursatella kachii kachii Bursatella kachii pleii Bursatella leachii leachi Blainville, 1817 Bursatella leachii pleii Rang, 1828 Busycon carica carica (Gmelin, 1791) Busycon carica eliceans (Montfort, 1810) Busycon perversum perversum (Linnaeus, 1758) Cadulus tolmiei newcombei Pilsbry and Sharp, 1898 Cadulus tolmiei tolmiei (Dall, 1897) Caecum crebricinctum barkleyense Bartsch, 1920 Caecum crebricinctum catalinense Bartsch, 1920 Caecum crebricinctum crebricinctum (Carpenter, 1864) Caecum crebricinctum oregonense Bartsch, 1920 Caecum crebricinctum pedroense Bartsch, 1920 Calliostoma bairdi subumbilicatum Dall Calliostoma bairdii bairdii A. E. Verrill and S. Smith, 1880 Calliostoma bairdii hendersoni Dall, 1927 Calliostoma bairdii oregon Clench and Turner, 1960 Calliostoma bairdii psyche Dall, 1927 Calliostoma bairdii rosewateri Clench and Turner, 1960 Calliostoma jujubinum jujubinum (Gmelin, 1791) Calliostoma jujubinum tampaense (Conrad, 1846) Calliostoma zizyphinum lyonsii (Leach, 1850) Calliostoma zizyphinum zizyphinum (Linnaeus, 1758) Cancellaria reticulata reticulata (Linnaeus, 1767) Casmaria ponderosa atlantica Clench, 1944 Casmaria ponderosa ponderosa Cassis madagascariensis spinella Clench, 1944 Cerion chrysalis chrysalis Cerion chrysalis fastigatum Maynard, 1896 Cerion sculptum marielinum Torre, 1927 Cerion sculptum sculptum Cerithidea californica albonodosa Gould and Carpenter, 1857 Cerithidea californica californica Swainson, 1840 Cerithidea californica mazatlanica Carpenter, 1856 Cerithidea costata beattyi Bequaert, 1942 Cerithidea costata costata (E. M. da Costa, 1778) Cerithidea costata turrita Stearns, 1873 Cerithidea pliculosa pliculosa (Menke, 1829) Cerithidea pliculosa veracruzensis Bequaert, 1942 Cerithiopsis metaxae metaxae Della Chiaje, 1829 Cerithiopsis metaxae taeniolata Dall, 1889 Cerithiopsis stejnegeri dina Bartsch, 1911 Cerithiopsis stejnegeri stejnegeri Dall, 1884 Cerithiopsis tubercularis floridana Dall, 1892 Cerithiopsis tuberculatus floridana Dall, 1892 Cerithiopsis tuberculatus tuberculatus Montagu, 1803 Cerithium eburneum algicola C. B. Adams, 1845 Cerithium eburneum eburneum Bruguiere, 1792 Cerithium litteratum litteratum (Born, 1778) Cerithium litteratum semiferruginea Lamarck, 1822 Cerithium lutosum biminiense Pilsbry and McGinty, 1949 Cerithium lutosum lutosum Menke, 1828 Chama sinuosa firma Pilsbry and Mcginty, 1938 Chama sinuosa sinuosa Broderip, 1835 Charonia tritonis tritonis Linnaeus, 1758 Charonia tritonis variegata (Lamarck, 1816) Chicoreus florifer florifer Chione cancellata cancellata (Linnaeus, 1767) Chione cancellata mazycki Dall, 1902 Chiroteuthis picteti picteti Joubin, 1894 Chiroteuthis picteti somaliensis Salcedo-Vargas, 1996 Chiroteuthis veranyi lacertosa Verrill, 1881 in 1880-1881 Chiroteuthis veranyi veranyi (Férussac, 1834) Chlamys circularis aequisculata (Carpenter, 1864) Chlamys circularis circularis (Sowerby, 1835) Chlamys hastata hastata (Sowerby, 1842) Chlamys hastata hericia (Gould, 1850) Chlamys hastata pugetensis Oldroyd, 1920 Chlamys islandica costellatus Verrill and Bush, 1897 Chlamys islandica insculptus (Verrill, 1897) Chlamys islandica islandica (Müller, 1776) Chlamys varia nivea (Macgillivray, 1825) Chlamys varia varia Cingula robusta robusta Cipangopaludina chinensis chinensis (Gray, 1834) Cipangopaludina chinensis malleata (Reeve, 1863) Clio pyramidata antarctica Dall, 1908 Clio pyramidata convexa (Boas, 1886) Clio pyramidata excisa Van Der Spoel, 1963 Clio pyramidata lanceolata Lesueur, 1813 Clio pyramidata martensi Pfeffer, 1880 Clio pyramidata pyramidata Linnaeus, 1767 Clio pyramidata sulcata (Pfeffer, 1879) Codakia orbiculata filiata Dall, 1901 Codakia orbiculata orbiculata (Montagu, 1808) Collisella limatula limatula Collisella limatula moerchii Dall Colus gracilis frielei (Harmer, 1914) Colus gracilis glabra (Verkruzen, 1876) Colus gracilis gracilis Colus jeffreysianus jeffreysianus Colus jeffreysianus marshalli (Iredale, 1918) Colus profundicola dispar Verrill, 1884 Colus profundicola profundicola (Verrill and Smith, 1884) Conus diadema diadema Sowerby, 1910 Conus diadema pemphigus Dall, 1910 Conus floridanus burryae Clench, 1942 Conus floridanus floridanus Gabb, 1868 Conus jaspideus jaspideus Gmelin, 1791 Conus jaspideus pygmaeus Reeve, 1844 Conus jaspideus verrucosus Hwass, 1792 Conus mazei macgintyi Pilsbry, 1955 Conus princeps apogrammatus Dall, 1910 Conus princeps lineolata Valenciennes, 1832 Conus princeps princeps Conus sponsalis nux Broderip, 1833 Conus sponsalis sponsalis Conus spurius atlanticus Clench, 1942 Conus spurius aureofasciatus Rehder and Abbott, 1951 Conus spurius spurius Gmelin, 1791 Conus villepinii fosteri Clench and Aguayo, 1942 Conus villepinii villepinii P. Fischer and Bernardi, 1857 Crassostrea gigas gigas (Thunberg, 1793) Crassostrea gigas kumamoto Crassostrea gigas laperousii Schrenck Creseis virgula conica (Eschscholtz, 1829) Cyathodonta undulata peruviana Olsson, 1961 Cyathodonta undulata undulata Conrad, 1849 Cyclocardia spurca beebei Hertlein, 1958 Cyclocardia spurca spurca Sowerby, 1833 Cyclocardia ventricosa montereyensis (A. E. Smith and M. Gordan, 1948) Cyclocardia ventricosa redondoensis (J. Q. Burch, 1948) Cyclocardia ventricosa ventricosa (Gould, 1850) Cylichna occulta densistriata (Leche, 1878) Cymatium amictum amictum Cymatium amictum tremperi Dall, 1907 Cymatium corrugatum amictum (Reeve, 1844) Cymatium corrugatum corrugatum Cymatium corrugatum krebsii (Morch, 1877) Cymatium moritinctum caribbaeum Clench and Turner, 1957 Cymatium moritinctum moritinctum (Reeve, 1844) Cymatium rubeculum occidentale (Morch, 1877) Cymatium rubeculum rebeculum (Linnaeus, 1758) Cymatium testudinarium rehderi A. H. Verrill, 1950 Cymatium testudinarium testudinarium Adams and Reeve, 1848 Cymatoica orientalis hendersoni Rehder, 1939 Cymatoica orientalis orientalis (Dall, 1890) Cyphoma mcgintyi mcgintyi Pilsbry, 1939 Cyphoma mcgintyi robustior F. M. Bayer, 1941 Cypraea mus bicornis Sowerby, 1870 Cypraea mus tuberculata Gray, 1828 Cypraea spurca spurca Linnaeus, 1758 Cypraea zebra dissimilis Schilder, 1924 Cypraea zebra vallei Juame and Borro, 1946 Cypraea zebra zebra Linnaeus, 1758 Dacrydium elegantulum hendersoni Salas and Gofas, 1997 Delectopecten vitreus abyssorum (M. Sars, 1868) Delectopecten vitreus vitreus (Gmelin, 1791) Delonovolva aequalis aequalis Sowerby, 1832 Delonovolva aequalis vidleri (Sowerby, 1881) Diaphorodoris luteocincta alba Diaphorodoris luteocincta luteocincta (M. Sars, 1870) Diplodonta orbella orbella (Gould, 1851) Diplodonta rotundata eddystonia (Marshall, 1895) Diplodonta rotundata rotundata Distorsio constricta constricta Broderip Distorsio constricta mcgintyi Emerson and Puffer, 1953 Donax roemeri protracta Conrad, 1849 Elimia comalensis comalensis (Pilsbry, 1890) Elimia comalensis frontinalis (Pilsbry and Ferriss, 1906) Elimia lecontiana excellens (Goodrich, 1935) Elimia lecontiana georgiana (Lea, 1862) Elimia lecontiana infuscata (Lea, 1862) Elimia lecontiana lecontiana (Lea, 1841) Elimia lecontiana luteocella (Lea, 1868) Elimia lecontiana stearnsiana (Call, 1886) Elimia perstriata clathrata (Lea, 1868) Elimia perstriata crispa (Lea, 1862) Elimia perstriata perstriata (Lea, 1852) Elimia potosiensis crandalli (Pilsbry, 1890) Elimia potosiensis ozarkensis (Call, 1886) Elimia potosiensis plebeius (Anthony, 1850) Elimia potosiensis potosiensis (Lea, 1841) Enoploteuthis leptura leptura (Leach, 1817) Enoploteuthis leptura magnoceani Nesis, 1982 Ervilia concentrica concentrica (Holmes, 1860) Ervilia concentrica rostratula Rehder, 1943 Eulithidium affine affine (C. B. Adams, 1850) Eulithidium affine cruentum (Robertson, 1958) Fasciolaria lilium branhamae Rehder and Abbott, 1951 Fasciolaria lilium hunteria (G. Perry, 1811) Fasciolaria lilium lilium G. Fischer, 1807 Fasciolaria lilium tortugana Hollister, 1957 Fissurella nodosa crusoe Farfante, 1943 Fissurella volcano crucifera Dall, 1919 Fissurella volcano volcano Reeve, 1849 Fusinus alcimus alcimus (Dall, 1889) Fusinus alcimus rushi (Dall, 1889) Gaza superba cabana Clench and Aguayo, 1940 Gaza superba superba Clench and Aguayo, 1940 Geukensia demissa demissa (Dillwyn, 1817) Graneledone verrucosa media (Joubin, 1918) Graneledone verrucosa verrucosa (Verrill, 1881) Haliotis corrugata corrugata W. Wood, 1828 Haliotis corrugata oweni Talmadge, 1966 Haliotis cracherodii californiensis Swainson, 1822 Haliotis cracherodii cracherodii Leach, 1814 Haliotis dalli dalli Henderson, 1915 Haliotis dalli roberti McLean, 1970 Haliotis discus discus Reeve, 1846 Haliotis discus hannai Ino, 1953 Haliotis diversicolor diversicolor Reeve, 1846 Haliotis diversicolor squamata Reeve, 1846 Haliotis fulgens fulgens Philippi, 1845 Haliotis fulgens guadalupensis Talmadge, 1964 Haliotis fulgens turveri Bartsch, 1942 Haliotis jacnensis jacnensis Reeve, 1846 Haliotis jacnensis kershawi Owen in Geiger and Owen, 2012 Haliotis kamtschatkana assimilis Dall, 1878 Haliotis kamtschatkana kamtschatkana Jonas, 1845 Haliotis ovina ovina J.H. Gmelin, 1791 Haliotis ovina volcanius Patamakanthin & Eng, 2002 Haliotis pourtalesii aurantium Simone, 1998 Haliotis pourtalesii pourtalesii Dall, 1881 Haliotis rubra conicopora Péron, 1816 Haliotis rubra rubra Leach, 1814 Haliotis rugosa pustulata Reeve, 1846 Haliotis rugosa rodriguensis Owen, 2013 Haliotis rugosa rugosa Lamarck, 1822 Haliotis scalaris emmae Reeve, 1846 Haliotis scalaris scalaris (Leach, 1814) Haliotis tuberculata coccinea Reeve, 1846 Haliotis tuberculata fernandesi Owen & Afonso in Geiger and Owen, 2012 Haliotis tuberculata tuberculata Linnaeus, 1758 Haliotis virginea crispata A. Gould, 1847 Haliotis virginea huttoni Filhol, 1880 Haliotis virginea morioria Powell, 1938 Haliotis virginea stewartae Jones & Owen, 2004 Haliotis virginea virginea J.H. Gmelin, 1791 Heliacus bisulcatus bisulcatus (d'Orbigny, 1842) Heliacus bisulcatus mazatlanicus Pilsbry and Lowe, 1932 Heliacus infundibuliformis perrieri (Rochebrune, 1881) Histioteuthis celetaria celetaria (Voss, 1960) Histioteuthis celetaria pacifica (Voss, 1962) Histioteuthis corona berryi Voss, 1969 Histioteuthis corona cerasina Nesis, 1971 Histioteuthis corona corona (Voss and Voss, 1962) Histioteuthis corona inermis (Taki, 1964) Humboldtiana hoegiana hoegiana Humboldtiana hoegiana praesidii Pilsbry, 1939 Hyalina styria minor Dall, 1927 Hyalina styria styria Dall, 1889 Ischnochiton striolatus funiculatus Ischnochiton striolatus striolatus Juga acutifilosa acutifilosa (Stearns, 1890) Juga acutifilosa siskiyouensis (Pilsbry, 1899) Lacuna crassior crassior (Montagu, 1803) Lacuna crassior glacialis (Moller, 1842) Latirus carinifer macgintyi Pilsbry, 1939 Ledella pustulosa marshalli Allen and Hannah, 1989 Ledella pustulosa pustulosa (Jeffreys, 1876) Lepeta alba alba (Dall, 1869) Lepeta alba instabilis (Dall, 1869) Lepidochitona dentiens dentiens (Gould, 1846) Lepidochitona lowei lowei (Pilsbry, 1918) Limacina helicina acuta Van Der Spoel, 1967 Limacina helicina helicina Phipps, 1774 Limacina helicina pacifica Dall, 1871 Lioplax pilsbryi choctawhatchensis Vanatta, 1935 Lioplax pilsbryi pilsbryi Walker, 1905 Lithophaga plumula plumula Hanley, 1844 Littorina angulifera aberrans Philippi, 1846 Littorina angulifera angulifera (Lamarck, 1822) Littorina mespillum mespillum (Muhlfield, 1824) Littorina mespillum minima (Wood, 1828) Littorina nebulosa nebulosa (Lamarck, 1822) Littorina nebulosa tessellata Philippi, 1847 Littorina obtusata aestuarii Jeffreys, 1865 Littorina obtusata arctica Moller, 1842 Littorina obtusata obtusata (Linnaeus, 1758) Littorina obtusata palliata Say, 1822 Littorina saxatilis groenlandica Menke, 1830 Littorina saxatilis rudis (Maton, 1796) Littorina saxatilis saxatilis (Olivi, 1792) Littorina saxatilis tenebrosa (Montagu, 1803) Littorina scutulata pullata Carpenter, 1864 Littorina scutulata scutulata Gould, 1849 Loligo vulgaris reynaudi D'Orbigny, 1839-1841 in Férussac and D'Orbigny, 1834-1848 Loligo vulgaris vulgaris Lamarck, 1798 Lottia alveus alveus (Conrad, 1831) Lottia alveus parallela (Dall, 1914) Lucapina suffusa suffusa (Reeve, 1850) Lucapina suffusa tobagoensis Perez-farfante Lucapinella limatula hassleri Farfante, 1943 Lucina nuttalli centrifuga Dall, 1901 Lucina nuttalli nuttalli (Conrad, 1791) Lunatia fringilla fringilla (Dall, 1881) Lunatia fringilla perla (Dall, 1889) Lyonsia hyalina floridana Conrad, 1849 Macoma moesta alaskana Macoma moesta moesta (Deshayes, 1855) Mactromeris polynyma alaskana Mactromeris polynyma polynyma (Stimpson, 1860) Mangelia acloneta acloneta (Dall, 1889) Mangelia acloneta cestrota (Dall, 1889) Mangelia quadrata diminuta C. B. Adams, 1850 Mangelia quadrata eritima Bush, 1885 Mangelia quadrata quadrata (Reeve, 1845) Margarites costalis baxteri J. H. McLean, 1995 Margarites costalis costalis (Gould, 1841) Margarites striatus laevior (Jeffreys, 1865) Margarites striatus striatus (Leach, 1819) Melanella micrans borealis Bartsch, 1917 Melanella micrans micrans (Carpenter, 1864) Melongena corona corona (Gmelin, 1791) Melongena corona johnstonei Clench and Turner, 1956 Mercenaria mercenaria texana (Dall, 1902) Microgaza rotella inornata Quinn, 1979 Microgaza rotella rotella Dall, 1881 Microvoluta blakeana blakeana (Dall, 1889) Microvoluta blakeana laevior (Dall, 1889) Mitra swainsonii antillensis Dall, 1889 Mitra swainsonii swainsonii Broderip, 1836 Mitrella amphisella amphisella (Dall, 1881) Mitrella amphisella rushi (Dall, 1889) Mitrella guttata baileyi Bartsch and Rehder, 1939 Mitrella guttata guttata Sowerby, 1832 Modiolus modiolus modiolus (Linnaeus, 1758) Modiolus modiolus squamosus Beauperthuy, 1967 Murex recurvirostris recurvirostris Broderip, 1833 Murex recurvirostris sallasi Rehder and Abbott, 1951 Murex recurvirostris woodringi Clench and Farfante, 1945 Nassarius mendicus mendicus (Gould, 1849) Nautilus pompilius pompilius Linnaeus, 1758 Nautilus pompilius suluensis Habe and Okutani, 1988 Neilonela pusio pusio (Philippi, 1844) Neilonela pusio salicensis (Seguenza, 1877) Neosimnia avena avena (G. B. Sowerby II, 1832) Neosimnia avena ruthturnerae Cate, 1973 Neosimnia spelta capitia Cate, 1973 Neosimnia spelta spelta Neptunea communis borealis (Philippi, 1850) Neptunea communis clarki Meek, 1923 Neptunea communis communis (Middendorff, 1849) Neptunea communis elongata Loyning, 1932 Neptunea insularis convexa Golikov, 1963 Neptunea insularis insularis (Dall, 1895) Neptunea lyrata decemcostata (Say, 1826) Neptunea lyrata lyrata (Gmelin, 1791) Neptunea lyrata turnerae Clarke, 1956 Neptunea vinosa umbonata (Dall, 1919) Neptunea vinosa vinosa (Dall, 1919) Octopus fangsiao etchuanus (Sasaki, 1929) Octopus fangsiao fangsiao D'Orbigny, 1839-1841 in Férussac and D'Orbigny, 1834-1848 Octopus minor minor (Sasaki, 1920) Octopus minor pardalis (Sasaki, 1929) Octopus minor typicus (Sasaki, 1929) Odostomia aepynota aepynota Dall and Bartsch, 1909 Odostomia aepynota planicosta Baker, Hanna, and Strong, 1928 Odostomia conoidea acutidens Dall, 1844 Odostomia conoidea conoidea (Brocchi, 1814) Odostomia satura gouldi Carpenter, 1865 Odostomia satura satura Carpenter, 1865 Oenopota tenuiliratus cymatus (Dall, 1919) Oenopota tenuiliratus tenuiliratus Oliva bifasciata sunderlandi Petuch, 1987 Oliva reticularis nivosa Marrat, 1870 Oliva reticularis reticularis Lamarck, 1810 Opalia pumilio morchiana (Dall, 1889) Opalia pumilio pumilio (Morch, 1874) Orobophana baldwini baldwini Ancey, 1904 Orobophana baldwini lihueensis Neal, 1934 Orobophana stokesii praemagma Neal, 1934 Orobophana stokesii stokesii Neal, 1934 Orobophana uberta beta Pilsbry and Cooke, 1908 Orobophana uberta borealis Neal, 1934 Orobophana uberta bryani Neal, 1934 Orobophana uberta exanima Neal, 1934 Orobophana uberta hibrida Neal, 1934 Orobophana uberta lymaniana Pilsbry and Cooke, 1908 Orobophana uberta magdalenae Ancey, 1890 Orobophana uberta makuaensis Neal, 1934 Orobophana uberta nuuanuensis Pilsbry and Cooke, 1908 Orobophana uberta percitrea Neal, 1934 Orobophana uberta subtenuis Neal, 1934 Orobophana uberta uberta Gould, 1847 Orobophana uberta wilderi Neal, 1934 Orthalicus reses nesodryas Pilsbry, 1946 Orthalicus reses reses (Say, 1830) Ovatella myosotis myosotis (Draparnaud, 1801) Ovatella myosotis ringens (Turton, 1819) Oxyloma haydeni haydeni (W. G. Binney, 1858) Oxyloma haydeni kanabensis Patera clarki clarki (I. Lea, 1858) Patera clarki nantahala Clench, 1933 Petaloconchus erectus erectus (Dall, 1888) Petaloconchus erectus mcgintyi Olsson and Harbisson, 1953 Petaloconchus varians floridana Olsson and Harbison, 1953 Petaloconchus varians nigricans (Dall, 1884) Petaloconchus varians varians (d'Orbigny, 1841) Physella gyrina aurea (Lea, 1838) Physella gyrina gyrina (Say, 1821) Planorbella trivolvis intertextum (Sowerby, 1878) Planorbella trivolvis trivolvis (Say, 1817) Planorbula armigera armigera (Say, 1821) Planorbula armigera wheatleyi (Lea, 1858) Pleuropoma kauaiensis kauaiensis Pilsbry and Cooke, 1908 Pleuropoma kauaiensis orientalis Neal, 1934 Pleuropoma laciniosa alpha Pilsbry and Cooke, 1908 Pleuropoma laciniosa bronniana Philippi, 1847 Pleuropoma laciniosa canyonensis Neal, 1934 Pleuropoma laciniosa delta Pilsbry and Cooke, 1908 Pleuropoma laciniosa ferruginea Neal, 1934 Pleuropoma laciniosa gamma Pilsbry and Cooke, 1908 Pleuropoma laciniosa globuloidea Neal, 1934 Pleuropoma laciniosa honokowaiensis Neal, 1934 Pleuropoma laciniosa kaaensis Neal, 1934 Pleuropoma laciniosa kickieensis Neal, 1934 Pleuropoma laciniosa kohoolawensis Neal, 1934 Pleuropoma laciniosa konaensis Neal, 1934 Pleuropoma laciniosa kulaensis Neal, 1934 Pleuropoma laciniosa laciniosa Mighels, 1845 Pleuropoma laciniosa laula Neal, 1934 Pleuropoma laciniosa matutina Neal, 1934 Pleuropoma laciniosa molokaiensis Neal, 1934 Pleuropoma laciniosa moomomiensis Neal, 1934 Pleuropoma laciniosa perparva Neal, 1934 Pleuropoma laciniosa piliformis Neal, 1934 Pleuropoma laciniosa praeparva Neal, 1934 Pleuropoma laciniosa pusilla Neal, 1934 Pleuropoma laciniosa sandwichiensis Souleyet, 1852 Pleuropoma laciniosa signata Neal, 1934 Pleuropoma laciniosa spaldingi Neal, 1934 Pleuropoma oahuensis gemina Neal, 1934 Pleuropoma oahuensis oahuensis Pilsbry and Cooke, 1908 Pleuropoma rotelloidea knudseni Pilsbry and Cooke, 1908 Pleuropoma rotelloidea makalii Neal, 1934 Pleuropoma rotelloidea mauiensis Neal, 1934 Pleuropoma rotelloidea rotelloidea Nighels, 1845 Pleuropoma rotelloidea sola Neal, 1934 Pleurotomella tornata malmii Dall, 1889 Pleurotomella tornata tornata (Verrill, 1884) Pneumoderma violaceum pacificum Dall, 1871 Pneumoderma violaceum violaceum (d'Orbigny, 1836) Polygyra plana bahamensis Vanatta, 1919 Polygyra plana plana Proterato gemma pygmaea Schilder, 1933 Prunum virginianum hartleyanum (Schwengel, 1941) Prunum virginianum virginianum Conrad, 1868 Psammotreta cognata clarki (Durham, 1950) Psammotreta cognata cognata (Pilsbry and Vanatta, 1902) Pseudodon vondembuschianus tapienica (Konopleva et al., 2023) Pseudodon vondembuschianus thasaenica (Konopleva et al., 2023) Pseudodon vondembuschianus vondembuschianus (Lea, 1840) Pseudoliomesus ooides canaliculatus (Dall, 1874) Pseudoliomesus ooides ooides (Middendorff, 1848) Pterygioteuthis giardi giardi Fischer, 1896 Pterygioteuthis giardi hoylei (Pfeffer, 1912) Retusa obtusa lajonkaireana (Basterot, 1825) Retusa obtusa obtusa (Montagu, 1803) Retusa obtusa turrita Moler, 1842 Retusa umbilicata nitidula (Montagu, 1803) Retusa umbilicata umbilicata (Montagu, 1803) Rictaxis punctocaelatus coronadoensis Stearns, 1898 Rictaxis punctocaelatus punctocaelatus (Carpenter, 1864) Rictaxis punctocaelatus vancouverensis Oldroyd, 1927 Rissoa lilacina lilacina Recluz, 1843 Rissoa lilacina rufilabrum Alder, 1844 Rissoa membranacea cornea (Loven, 1846) Rissoa membranacea gracilis (Forbes and Hanley, 1850) Rissoa membranacea membranacea Rissoa membranacea octona (Nilsson, 1822) Rossia pacifica diegensis Berry, 1912 Rossia pacifica pacifica Berry, 1911 Scaphella dubia dubia (Broderip, 1827) Scaphella dubia ethelae (Pilsbry and Olsson, 1953) Scaphella dubia georgiana (Clench, 1946) Scaphella dubia neptunia Clench and Aguayo, 1940 Scaphella dubia schmitti (Bartsch, 1931) Scaphella gouldiana atlantis Clench, 1946 Scaphella gouldiana bermudezi (Clench and Aguayo, 1940) Scaphella gouldiana cuba Clench, 1940 Scaphella gouldiana florida (Clench and Aguayo, 1940) Scaphella gouldiana gouldiana (Dall, 1887) Scaphella gouldiana marionae Pilsbry and Olsson, 1953 Scaphella gouldiana robusta (Dall, 1889) Scaphella junonia butleri Clench, 1953 Scaphella junonia johnstoneae Clench, 1953 Scaphella junonia junonia (Lamarck, 1804) Seguenzia monocingulata monocingulata Sequenza, 1876 Seguenzia monocingulata nitidi Verrill, 1894 Simnia aequalis aequalis Sowerby, 1832 Simnia aequalis vidleri (Sowerby, 1881) Spisula solidissima similis (Say, 1822) Spisula solidissima solidissima (Dillwyn, 1817) Splendrillia moseri brunnescens Rehder, 1943 Splendrillia moseri moseri (Dall, 1889) Sterkia eyriesii eyriesii (Drouet, 1859) Sterkia eyriesii rhoadsi (Pilsbry, 1899) Stramonita haemastoma canaliculata (J. E. Gray, 1839) Stramonita haemastoma floridana (Conrad, 1837) Stramonita haemastoma haemastoma (Linnaeus, 1758) Taranis cirrata cirrata (Brugnone, 1862) Taranis cirrata tornatus Verrill, 1884 Tarebia granifera granifera (Lamarck, 1822) Tarebia granifera mauiensis Brot, 1877 Taringa aivica aivica Marcus and Marcus, 1967 Taringa aivica timia Ev. Marcus and Er. Marcus, 1967 Taringa telopia disa Ev. Marcus and Er. Marcus, 1967 Taringa telopia telopia Marcus, 1955 Teinostoma amplectans americanum Pilsbry and Olsson, 1945 Teinostoma amplectans amplectans Carpenter, 1857 Teinostoma supravallatum invallatum (Carpenter, 1864) Teinostoma supravallatum supravallatum (Carpenter, 1864) Tellina alternata alternata Sowerby, 1867 Tellina alternata tayloriana Sowerby, 1867 Tellina bodegensis bodegensis Hinds, 1845 Tellina bodegensis santarosae Dall, 1900 Terebra protexta limatula Dall, 1889 Terebra protexta protexta (Conrad, 1845) Thyasira equalis alba Verrill and Bush, 1898 Thyasira equalis equalis A. E. Verrill and Bush, 1898 Thyasira flexuosa flexuosa (Montagu, 1803) Thyasira flexuosa sarsii Philippi, 1845 Todarodes pacificus pacificus (Steenstrup, 1880) Todarodes pacificus pusillus Dunning, 1988 Tremoctopus violaceus gracilis Souleyet, 1852 Tremoctopus violaceus violaceus Chiaie, 1830 in 1823-1831 Tricolia affinis affinis (C. B. Adams, 1850) Tricolia affinis pterocladia Robertson, 1958 Tritonia bayeri bayeri Ev. Marcus and Er. Marcus, 1967 Tritonia bayeri misa Ev. Marcus and Er. Marcus, 1967 Trivia pediculus pediculus (Linnaeus, 1758) Trivia pediculus pullata Sowerby, 1870 Trophon cerrosensis catalinensis Oldroyd, 1927 Trophon cerrosensis cerrosensis Dall, 1891 Truncatella pulchella bilabiata Pfeiffer, 1839 Truncatella pulchella pulchella Pfeiffer, 1839 Truncatella scalaris clathrus Lowe, 1832 Truncatella scalaris piratica Clench and Turner, 1948 Truncatella scalaris scalaris (Michaud, 1830) Turbo castanea crenulatus Gmelin, 1791 Turbonilla bushiana abyssicola Bartsch, 1909 Turbonilla bushiana bushiana Gordon, 1938 Turbonilla elegantula branfordensis Bartsch, 1909 Turbonilla elegantula elegantula A. E. Verrill, 1882 Turbonilla gilli delmontensis Dall and Bartsch, 1907 Turbonilla gilli gilli Dall and Bartsch, 1907 Turbonilla incisa constricta Bush, 1899 Turbonilla incisa incisa Bush, 1899 Velodona togata capensis Robson, 1924 Velodona togata togata Chun, 1915 Venus gallina gallina Venus gallina striatula Volva volva striata (Lamarck, 1810) Volva volva volva Volvarina avena avena (Kiener, 1834) Volvarina avena beyerleana (Bernardi, 1883) Volvarina taeniolata rosa (Schwengel, 1938) Volvarina taeniolata taeniolata Morch, 1860 ^а б в г Chapman, A.D. (2009).Numbers of Living Species in Australia and the World, 2nd edition ISBN 978-0-642-56860-1 . ^ Мишић, Милан, ур. (2005).Енциклопедија Британика. Л-М . Београд: Политика : Народна књига. стр. 153.ISBN 86-331-2116-6 . ^ Little, L.; Fowler, H.W.; Coulson, J.; Onions, C.T., ур. (1964). „Malacology”.Shorter Oxford English Dictionary ^ Chisholm, Hugh, ур. (1911). „Molluscoida ”.Encyclopædia Britannica 18 (11 изд.). Cambridge University Press. стр. 675. ^ Hogan, C. Michael (2010).„Calcium” . Ур.: Jorgensen, A.; Cleveland, C.Encyclopedia of Earth . National Council for Science and the Environment. ^а б Giribet, G.; Okusu, A, A.; Lindgren, A.R., A. R.; Huff, S.W., S. W.; Schrödl, M, M.; Nishiguchi, M.K., M. K. (2006).„Evidence for a clade composed of molluscs with serially repeated structures: monoplacophorans are related to chitons” (Free full text) .Proceedings of the National Academy of Sciences of the United States of America .103 (20): 7723—7728.Bibcode :2006PNAS..103.7723G .PMC 1472512 PMID 16675549 .doi :10.1073/pnas.0602578103 . ^ Hayward, PJ (1996).Handbook of the Marine Fauna of North-West Europe . Oxford University Press. стр. 484—628.ISBN 978-0-19-854055-7 . ^а б в Brusca, R. C. & Brusca, G. J. (2003).Invertebrates 702 .ISBN 978-0-87893-097-5 . ^а б Ruppert , pp. 284–291^ Ruppert , стр. 291–292 harvnb грешка: no target: CITEREFRuppert (help ) ^ Ruppert , стр. 292–298 harvnb грешка: no target: CITEREFRuppert (help ) ^ Ruppert , стр. 298–300 harvnb грешка: no target: CITEREFRuppert (help ) ^ Ruppert , стр. 300–343 harvnb грешка: no target: CITEREFRuppert (help ) ^ Ruppert , стр. 343–367 harvnb грешка: no target: CITEREFRuppert (help ) ^ Ruppert , стр. 367–403 harvnb грешка: no target: CITEREFRuppert (help ) ^ Ruppert , стр. 403–407 harvnb грешка: no target: CITEREFRuppert (help ) ^а б в Ponder, W.F.; Lindberg, D.R., ур. (2008).Phylogeny and Evolution of the Mollusca ISBN 978-0-520-25092-5 . ^ Nicol, David (1969). „The Number of Living Species of Molluscs”.Systematic Zoology .18 (2): 251—254.doi :10.2307/2412618 . ^ Haszprunar, G. (2001). „Mollusca (Molluscs)”.Encyclopedia of Life Sciences . John Wiley & Sons, Ltd.doi :10.1038/npg.els.0001598 . ^ Hancock, Rebecca (2008).„Recognising research on molluscs” . Australian Museum. Архивирано изоригинала 30. 5. 2009. г. Приступљено9. 3. 2009 . ^ Ruppert , Front endpaper 1^ Ponder, Winston F. & Lindberg, David R. (2004).„Phylogeny of the Molluscs” . World Congress of Malacology. Приступљено9. 3. 2009 . ^ Raup, David M. & Stanley, Steven M. (1978).Principles of Paleontology 4 -5.ISBN 978-0-7167-0022-7 . ^ Barnes, R.S.K.; Calow, P.; Olive, P.J.W.; Golding, D. W.; Spicer, J. I. (2001).The Invertebrates, A Synthesis (3 изд.). UK: Blackwell Science. ^ Kubodera, T.; Mori, K. (2005).„First-ever observations of a live giant squid in the wild” (PDF) .Proceedings of the Royal Society B .272 (1581): 2583—2586.PMC 1559985 PMID 16321779 .doi :10.1098/rspb.2005.3158 . Архивирано изоригинала (PDF) 3. 6. 2016. г. Приступљено22. 10. 2008 . ^ Black, Richard (26. 4. 2008).„Colossal squid out of the freezer” . BBC News. 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Радовић, И, Петров, Бригита: Разноврсност живота 1 - структура и функција, Биолошки факултет Београд и Stylos Нови Сад, Београд, 2001. Ruppert, E. E.; Fox, R. S.; Barnes, R. D. (2004).Invertebrate Zoology ISBN 978-0-03-025982-1 .
