Cycloteuthis
Encyclopedia
Cycloteuthis is a genus of squid
in the family Cycloteuthidae
. It is distinguished from the genus Discoteuthis
by the presence of a tail on the mantle
. The species C. akimushkini is currently considered a junior synonym of C. sirventi
, however this is inconclusive.
Squid
Squid are cephalopods of the order Teuthida, which comprises around 300 species. Like all other cephalopods, squid have a distinct head, bilateral symmetry, a mantle, and arms. Squid, like cuttlefish, have eight arms arranged in pairs and two, usually longer, tentacles...
in the family Cycloteuthidae
Cycloteuthidae
Cycloteuthidae is a family in the order Teuthida, comprising two genera. While physically dissimilar, molecular evidence supports the relatedness of the genera. The family is found primarily in mesopelagic tropical to subtropical waters...
. It is distinguished from the genus Discoteuthis
Discoteuthis
Discoteuthis is a genus of squid in the family Cycloteuthidae. It is distinguished from the genus Cycloteuthis by the absence of a tail on the mantle. The genus occurs in tropical and subtropical oceans worldwide.-External links:*...
by the presence of a tail on the mantle
Mantle (mollusc)
The mantle is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself.In many, but by no means all, species of molluscs, the epidermis of the mantle secretes...
. The species C. akimushkini is currently considered a junior synonym of C. sirventi
Cycloteuthis sirventi
Cycloteuthis sirventi is a species of squid in the family Cycloteuthidae, of which it is the most common. It is possible that C. akimushkini is a junior synonym of C. sirventi. The species occurs in the tropical to polar western Atlantic Ocean....
, however this is inconclusive.