Cirrina


Cirrina
Cirrina
Stauroteuthis syrtensis
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Octopoda
Suborder: Cirrina
Grimpe, 1916
Families

Opisthoteuthidae
Cirroteuthidae
Stauroteuthidae

Synonyms
  • Cirrata
    Grimpe, 1916
  • Cirroctopoda
    Young, 1989

Cirrina is a suborder of octopuses. Cirrate octopuses have a small, internal shell and two fins on their head, while their sister suborder Incirrina has neither.

The suborder is named for small cilia-like strands on the arms of the octopus. There is a pair of cirri for each sucker. These are thought to play some role in feeding, perhaps by creating currents of water that help bring food closer to the beak. Cirrate octopuses are noteworthy for lacking an ink sac.

Classification

External links