The hooked squid, familyOnychoteuthidae, currently comprise about 20–25 species (several known from only single life stages and thus unconfirmed), in six or seven genera. They range in mature mantle length from 7 cm to a suggested length of 2 m for the largest member, Onykia robusta. The family is characterised by the presence of hooks only on the tentacular clubs, a simple, straight, funnel–mantle locking apparatus, and a 'step' inside the jaw angle of the lower beak. With the exception of the Arctic Ocean, the family is found worldwide.
(*) indicates taxa requiring further taxonomic investigation
References
^"Statoliths of Cenozoic teuthoid cephalopods from North America | The Palaeontological Association". www.palass.org. Retrieved 2023-10-09.
^Philippe Bouchet (2018). Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O (eds.). "Onychoteuthidae Gray, 1847". MolluscaBase. World Register of Marine Species. Retrieved 13 March 2018.
Bolstad, K.S.R. 2008. Systematics of the Onychoteuthidae Gray, 1847 (Cephalopoda: Oegopsida). Doctoral thesis.
Bolstad, K.S.R. 2010. Systematics of the Onychoteuthidae Gray, 1847 (Cephalopoda: Oegopsida). Zootaxa2696: 1–186. Preview
External links
Tree of Life: Onychoteuthidae
CephBase: Onychoteuthidae
Onychoteuthidae discussion forum at TONMO.com
Laptikhovsky, V.; Arkhipkin, A.; Bolstad, K.S. 2008. A second species of the squid genus Kondakovia (Cephalopoda: Onychoteuthidae) from the sub-Antarctic.