Incirrina

Taxobox
name = Incirrina

---

image_caption = "Wunderpus photogenicus"
regnum = Animalia
phylum = Mollusca
classis = Cephalopoda
ordo = Octopoda
subordo = Incirrina
subordo_authority = Grimpe, 1916 "sensu" Felley "et al.", 2001
subdivision_ranks = Families
subdivision =
*Amphitretidae
*Bolitaenidae
*Octopodidae
*Vitreledonellidae
*Superfamily Argonautoida
**Alloposidae
**Argonautidae
**Ocythoidae
**Tremoctopodidae
synonyms =
*Incirrata
Grimpe, 1916

Incirrina is a suborder of the order Octopoda. The suborder contains the classic "benthic octopuses," as well as many pelagic octopus families, including the paper nautiluses. The incirrate octopuses are distinguished from the cirrate octopuses by the absence in the former of the "cirri" filaments found with the suckers that the cirrates are named for, as well as no paired swimming fins on the head, and a lack of a small internal shell (the "shell" of "Argonauta" species is not a true shell, but a thin calcite egg case).

Classification

*CLASS CEPHALOPODA
**Subclass Nautiloidea: nautilus
**Subclass †Ammonoidea: ammonites
**Subclass Coleoidea
***Superorder Decapodiformes: squid, cuttlefish
***Superorder Octopodiformes
****Order Vampyromorphida: Vampire Squid
****Order Octopoda
*****Genus †"Pohlsepia" ("incertae sedis")
*****Genus †"Proteroctopus" ("incertae sedis")
*****Genus †"Palaeoctopus" ("incertae sedis")
*****Suborder Cirrina: finned deep-sea octopus
*****Suborder Incirrina
******Family Amphitretidae: telescope octopus
******Family Bolitaenidae: gelatinous octopus
******Family Octopodidae: benthic octopus
******Family Vitreledonellidae: Glass Octopus
******Superfamily Argonautoida
*******Family Alloposidae: Seven-arm Octopus
*******Family Argonautidae: argonauts
*******Family Ocythoidae: Tuberculate Pelagic Octopus
*******Family Tremoctopodidae: blanket octopus