Comb-finned squid

<em>Chtenopteryx sicula</em>, the comb-finned squid, is a mesopelagic cephalopod in the family Chtenopterygidae, assessed as Data Deficient on the IUCN Red List, indicating that insufficient information is available to determine its conservation status. The species is named for the distinctive comb-like appearance of its fins, which are a key diagnostic feature. It has been recorded from Taiwanese waters and is associated with the open ocean at mesopelagic depths, typically found in the water column of tropical and subtropical seas. Like other members of its family, <em>C. sicula</em> is a predatory organism that likely feeds on small crustaceans, fish, and other cephalopods. The Data Deficient designation underscores the limited scientific knowledge of this species' population size, range, and ecology. Quantitative biological trait data including average length and weight are not available in the current record.