Cephalopod Groups

Cephalopoda

Coleoidea

Nautiloidea

Decapodiformes

Octopodiformes

Bathyteuthida

Idiosepida

Myopsida

Nautilida

Octopoda

Oegopsida

Sepiida

Spirulida

Vampyromorpha

Cirrata

Incirrata

Sepiina

Sepiolina

Architeuthoidea

Argonautoidea

Bathyteuthoidea

These are small mesopelagic to bathypelagic squids.  They have suckers on the buccal membrane; …

Chiroteuthoidea

Cirroteuthoidea

Cranchioidea

Cycloteuthoidea

Enoploteuthoidea

Idiosepioidea

Octopodoidea

Octopoteuthoidea

Opisthoteuthoidea

Pholidoteuthoidea

Sepioidea

Sepioloidea

Alloposidae

Amphitretidae

Ancistrocheiridae

Architeuthidae

Argonautidae

Australiteuthidae

Bathypolypodidae

Bathyteuthidae

This family contains a single genus with six species described.  Squids of the Bathyteuthidae a…

Batoteuthidae

Brachioteuthidae

Brachioteuthids are small to medium sized squids (ca. 15 cm ML). The mantle is muscular but generall…

Chiroteuthidae

Chiroteuthids are small to medium in size (up to 78 cm ML), rather gelatinous, slow moving, deep-sea…

Chtenopterygidae

Members of this family are small, muscular, midwater squids that occupy tropical to subtropical wate…

Cirroteuthidae

Cranchiidae

Cycloteuthidae

Eledonidae

Enoploteuthidae

Squids in this family are small, between 3 and 13 cm in mantle length. All open-ocean species occupy…

Enteroctopodidae

Gonatidae

Grimpoteuthidae

Histioteuthidae

Idioctopodidae

Idiosepiidae

Joubiniteuthidae

Lampadioteuthidae

Lepidoteuthidae

Loliginidae

Lycoteuthidae

Magnapinnidae

Mastigoteuthidae

Megaleledonidae

Nautilidae

Neoteuthidae

Octopodidae

Octopoteuthidae

Ocythoidae

Ommastrephidae

Onychoteuthidae

Opisthoteuthidae

Pholidoteuthidae

Promachoteuthidae

Psychroteuthidae

Pyroteuthidae

Sepiadariidae

Sepiidae

Sepiolidae

Spirulidae

Stauroteuthidae

Thysanoteuthidae

…

Vampyroteuthidae

Vampyroteuthis infernalis is the only species known in the Vampyroteuthidae. The vampire squid …

Amphitretinae

Heteroteuthinae

Illicinae

Ommastrephinae

Rossiinae

Sepiolinae

Taoniinae

Todarodinae

Todaropsinae

Vitrelledonelliinae

Euprymini

Sepiolini

Abdopus

Abralia

Abraliopsis

Acanthosepion

Adelieledone

Adinaefiola

Afrololigo

Allonautilus

Alloteuthis

Alluroteuthis

Ameloctopus

Amphioctopus

Amphitretus

Amphorateuthis

Amutatiola

Ancistrocheirus

Ancistroteuthis

Architeuthis

Argonauta

Ascarosepion

Asperoteuthis

Aurosepina

Australiteuthis

Austrorossia

Bathothauma

Bathypolypus

Bathypurpurata

Bathyteuthis

Batoteuthis

Bentheledone

Berryteuthis

Boletzkyola

Bolitaena

Brachioteuthis

Brachioteuthis is a genus of small-to-medium sized squid (ML up to 20 cm), found in every ocean, exc…

Callistoctopus

Chiroteuthis

Chiroteuthoides

Chtenopteryx

Cirroctopus

Cirroteuthis

Cirrothauma

Cistopus

Cranchia

Cryptoteuthis

Cycloteuthis

Danoctopus

Decorisepia

Dextrasepiola

Digitosepia

Discoteuthis

Doratosepion

Doryteuthis

Dosidicus

Echinoteuthis

Egea

Eledone

Enigmocranchia

Enoploteuthis

Enteroctopus

Erythalassa

Euaxoctopus

Eucleoteuthis

Eumandya

Euprymna

Exsuperoteuthis

Filippovia

Galeoctopus

Galiteuthis

Gonatopsis

Gonatus

Graneledone

Grimalditeuthis

Grimpella

Grimpoteuthis

Haliphron

Hapalochlaena

Helicocranchia

Hemisepius

Heterololigo

Heteroteuthis

Histioteuthis

Histoctopus

Hyaloteuthis

Idioctopus

Idiosepius

Idioteuthis

Illex

Inioteuthis

Inopinoteuthis

Insigniteuthis

Iridoteuthis

Japetella

Joubiniteuthis

Kodama

Laetmoteuthis

Lampadioteuthis

Leachia

Lepidoctopus

Lepidoteuthis

Liguriella

Liocranchia

These moderate-sized squids reach a maximum size of 250 mm (Nesis, 1982). They are cosmopolitan in t…

Loligo

Loliolus

Lolliguncula

Lusepia

Lusepiola

Luteuthis

Lycoteuthis

Macrochlaena

Macroctopus

Macrotritopus

Magnapinna

Magnoteuthis

Martialia

Mastigopsis

Mastigoteuthis

Mastigotragus

Megaleledone

Megalocranchia

Mesonychoteuthis

Metasepia

Microeledone

Moroteuthopsis

Muusoctopus

Narrowteuthis

Nautilus

Nectoteuthis

Nematolampas

Neorossia

Neoteuthis

Notonykia

Nototeuthis

Nototodarus

Octopoteuthis

Octopus

Ocythoe

Okutania

Ommastrephes

Onychoteuthis

Onykia

Opisthoteuthis

Ornithoteuthis

Parateuthis

Pareledone

Paroctopus

Pholidoteuthis

Pickfordiateuthis

Pinnoctopus

Planctoteuthis

Species of Planctoteuthis are usually rather small and very fragile deep-sea squids that are often b…

Praealtus

Promachoteuthis

Psychroteuthis

Pteroctopus

Pterygioteuthis

Pyroteuthis

Rhombosepion

Robsonella

Rondeletiola

Rossia

Sandalops

Sasakiopus

Scaeurgus

Selenoteuthis

Semirossia

Sepia

Sepiadarium

Sepiella

Sepietta

Sepiola

Sepioloidea

Sepioteuthis

Slosarczykovia

Slosarczykovia are relatively small squid with a maximum mantle length of ~20 cm. The species within…

Spathidosepion

Spirula

Stauroteuthis

Sthenoteuthis

Stigmatoteuthis

Stoloteuthis

Taningia

Tankaia

Taonius

Teretoctopus

Tetracheledone

Teuthowenia

Thaumeledone

Thaumoctopus

Thysanoteuthis

Thysanoteuthis is a genus of large, muscular squids (to at least 100 cm ML) found throughout tr…

Todarodes

Todaropsis

Tremoctopus

Uroteuthis

Vampyroteuthis

Velodona

Vitreledonella

Vosseledone

Vulcanoctopus

Walvisteuthis

Watasenia

Wunderpus

Xipholeptos