Müller's larva orMulleria is alarva of somePolycladida.[1] It has eightfold symmetry and resembles atrochophore;homology between the two types of larvae from related groups of theSpiralia is possible but is not well studied.[2] Müller’s larva is ciliated and has several paired and unpaired lobes. The cilia on the lobes are longer than cilia on the rest of the body. At the anterior and posterior ends of the larva are tufts of longer cilia (apical and caudal). The apical tuft originates from the apical organ, a sensory structure associated with thecentral nervous system.[2]
It is named afterJohannes Peter Müller (1801–1858), a German physiologist who invented theplankton net, and first described larval forms of many phyla.[3]
^Lanfranchi, Alberto; Bedini, Celina; Ferrero, Enrico (1981), "The ultrastructure of the eyes in larval and adult polyclads (Turbellaria)",The Biology of the Turbellaria, Springer Netherlands, pp. 267–275,doi:10.1007/978-94-009-8668-8_35,ISBN9789400986701
^Smith, N. F.; Johnson, K. B.; Young, C. M. (2002). "Phylum Platyhelminthes". In Young, C. M. (ed.).Atlas of Marine Invertebrate Larvae. London: Academic Press. pp. 123–152.