9242251f_Onychoteuthidae__Marginal_suckers_on_manus
[Genus] Callimachus [Photophores] Absent [Secondary occipital folds] Absent [Structure of mantle epidermis] Smooth [Fins] Ovate or paddle-shaped in adults* [Terminal pad suckers] 8–11 [Rachidian] Tricuspid [Marginal suckers on manus] 
Proximal partial series present at maturity*
Onychoteuthidae
Marginal suckers on manus