Family Majidae
(spider crabs)

Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World, Princeton University Press, copyright 2003. Used by permission.

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  Kingdom Animalia (animals)
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  Eumetazoa (metazoans)
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  Bilateria (bilaterally symmetrical animals)
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  Protostomia (protostomes)
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  Ecdysozoa
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  Phylum Arthropoda (crustaceans, insects, spiders, and relatives)
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  Subphylum Crustacea (crustaceans)
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  Class Malacostraca (crabs, krill, pill bugs, shrimp, and relatives)
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  Subclass Eumalacostraca
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  Superorder Eucarida
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  Order Decapoda (crabs, shrimp, and relatives)
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  Suborder Pleocyemata
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  Infraorder Brachyura
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  Superfamily Majoidea
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  Family Majidae (spider crabs)
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  Genus Acanthonyx
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  Genus Achaeus
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  Genus Aepinus
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  Genus Anasimus
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  Genus Anomalothir
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  Genus Arachnopsis
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  Genus Batrachonotus
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  Genus Camposcia
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  Genus Chionoecetes
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  Genus Chlorilia
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  Genus Chorilia
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  Genus Chorinus
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  Genus Coelocerus
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  Genus Collodes
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  Genus Cyclocoeloma
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  Genus Dorhynchus
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  Genus Epialtoides
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  Genus Epialtus
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  Genus Erileptus
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  Genus Euprognatha
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  Genus Eurynome
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  Genus Hemus
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  Genus Herbstia
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  Genus Hyas
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  Genus Inachoides
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  Genus Inachus
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  Genus Leptopisa
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  Genus Libinia
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  Genus Lissa
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  Genus Loxorhynchus
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  Genus Macrocheira
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  Genus Macrocoeloma
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  Genus Macropodia
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  Genus Maia
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  Genus Maja
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  Genus Metoporhaphis
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  Genus Microphrys
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  Genus Mimulus
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  Genus Mithraculus
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  Genus Mithrax
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  Genus Mocosoa
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  Genus Nibilia
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  Genus Oplopisa
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  Genus Oregonia
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  Genus Pelia
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  Genus Picroceroides
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  Genus Pisa
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  Genus Pitho
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  Genus Podochela
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  Genus Pugettia (kelp crabs)
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  Genus Pyromaia
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  Genus Rochinia
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  Genus Schizophrys
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  Genus Scyra
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  Genus Sphenocarcinus
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  Genus Stenocionops
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  Genus Stenorhynchus
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  Genus Stilbognathus
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  Genus Stilbomastax
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  Genus Taliepus
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  Genus Thoe
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  Genus Tyche
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  Genus Xenocarcinus