Cirroteuthidae

Cirroteuthidae is a family of pelagic cirrate octopuses comprising at least five species in three genera.

== Description == The cirrate octopods have a unique internal shell, positioned dorsally above the viscera and with a 'saddle-like' shape in Cirroteuthis (or 'butterfly-like' in Cirrothauma and Inopinoteuthis due to the anterior corners being more drawn out). The lateral faces of the 'saddle' acting as large attachment sites for fin muscles, supporting proportionally large and powerful fins. The arms are elongate and have both a primary web, forming most of the webbing, and a secondary web connecting the primary webbing to the aboral (outer) faces of each arm. The cirri, pairs of small finger-like projections between each sucker, are very elongate. Both the elongate cirri and secondary web are features shared with Stauroteuthidae, but no other cirrate family.