#class_Cephalopoda__Cephalopoda octopuses; squids; cuttlefish; pearly nautilus
supertype: class__clas (biology) a taxonomic group containing one or more orders
member of: phylum_Mollusca
member: cephalopod_mollusk__cephalopod marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles
member: family_Nautilidae__Nautilidae spiral-shelled cephalopods
member: genus_Nautilus type genus and sole recent representative of the family Nautilidae
member: chambered_nautilus__pearly_nautilus__nautilus cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions
member: subclass_Dibranchiata__Dibranchiata__Dibranchia__subclass_Dibranchia comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)
member: order_Octopoda__Octopoda octopuses and paper nautilus
member: octopod eight-armed cephalopod lacking an internal shell
member: family_Octopodidae__Octopodidae a family of Octopoda
member: genus_Octopus type genus of the family Octopodidae
member: devilfish__octopus__octopu bottom-living cephalopod having a soft oval body with eight long tentacles
member: family_Argonautidae__Argonautidae represented solely by the genus Argonauta
member: genus_Argonauta__Argonauta type genus of the family Argonautidae: paper nautilus
member: paper_nautilus__nautilus__Argonauta_argo cephalopod mollusk of warm seas whose females have delicate papery spiral shells
member: order_Decapoda__Decapoda squids and cuttlefishes
member: decapod cephalopods having eight short tentacles plus two long ones
member: genus_Loligo squids
member: loligo somewhat flattened cylindrical squid
member: genus_Ommastrephes a genus of Decapoda
member: ommastrephes extremely active cylindrical squid with short strong arms and large rhombic terminal fins
member: genus_Architeuthis giant squid
member: architeuthis__giant_squid__giantsquid largest mollusk known about but never seen (to 60 feet long)
member: family_Sepiidae__Sepiidae true cuttlefishes
member: genus_Sepia__Sepia type genus of the Sepiidae
member: cuttlefish__cuttle ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell
member: family_Spirulidae__Spirulidae coextensive with the genus Spirula; included in the order Belemnoidea in some older classifications
member: genus_Spirula genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites
member: spirula__Spirula_peronii a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral
member: order_Belemnoidea__Belemnoidea order of extinct dibranchiate cephalopods related to the surviving spirulas
member: family_Belemnitidae__Belemnitidae family of extinct Mesozoic cephalopods
member: belemnite a conical calcareous fossil tapering to a point at one end and with a conical cavity at the other end containing (when unbroken) a small chambered phragmocone from the shell of any of numerous extinct cephalopods of the family Belemnitidae
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