FromAncient Greekἀράχνη(arákhnē).

Arachnida

1. A taxonomicclass within thephylumArthropoda –spiders,scorpions,harvestmen,mites andticks, having four pairs ofthoracicappendages.

Consensus is lacking for taxonomic classification between theclass andorder levels. ThesubclassAcari is sometimes used, but doing so leads to an incompletely specified level.

• (class):Eukaryota – superkingdom;Animalia – kingdom;Bilateria – subkingdom;Protostomia – infrakingdom;Ecdysozoa – superphylum;Arthropoda – phylum;Chelicerata - subphylum

• (class):Acari(subclass, no consensus on use)
  • Holothyrida,Ixodida,Mesostigmata,Opilioacarida,Sarcoptiformes,Trombidiformes(orders, withinAcari when used)
  • Amblypygi,Araneae,Opiliones,Palpigradi,Pseudoscorpionida,Ricinulei,Schizomida,Scorpiones,Solifugae,Thelyphonida,Uropygi (= Thelyphonida)(orders)
  • †Haptopoda, †Phalangiotarbida, †Trigonotarbida, †Uraraneida(extinct orders)

• ⇒ English:arachnoid
• → French:arachnide
  • → English:arachnid

• Arachnida on Wikipedia.Wikipedia
• Arachnida on Wikispecies.Wikispecies
• Category:Arachnida on Wikimedia Commons.Wikimedia Commons
• Arachnida at theTree of Life Web Project
• Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, et al. (2015)A Higher Level Classification of All Living Organisms.PLoS ONE 10(4): e0119248.PMID25923521,→DOI

• Translingual terms derived from Ancient Greek
• Translingual lemmas
• Translingual proper nouns
• mul:Taxonomic names (class)
• mul:Arachnids

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• Entries using missing taxonomic name (subspecies)
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