Cycloteuthis sirventi
From Wikipedia, the free encyclopedia
| Cycloteuthis sirventi | |
|---|---|
![](#/media/File:Cycloteuthis_sirventi_-_Image_from_page_95_of_"Bulletin_de_l'Institut_océanographique"_(1919).jpg) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Oegopsida |
| Family: | Cycloteuthidae |
| Genus: | Cycloteuthis |
| Species: | C. sirventi |
| Binomial name | |
| Cycloteuthis sirventi | |
Cycloteuthis sirventi, commonly known as Sirvent's disc-fin squid,[2] 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. It has a maximum mantle length of 500mm.
As described by Joubin, C. sirventi is a relatively small squid. Its mantle is conical shaped, and tapers towards a sharp point. The mantle wall is thin, with gelatinous connective tissue between an inner and outer wall of muscle.[3] The fins are long and elliptical shaped, taking up about 80% of the overall mantle length. The lengths of the arms are about 85% of the mantle length, according to the largest specimens. The tentacles are long and robust, their clubs bearing four rows of suckers.
C. sirventi larvae are elongated, with small terminal fins. The photophores are not present in the eyes, which protrude greatly.
