9242251f_Onychoteuthidae__Marginal_suckers_on_manus
[Genus] Onykia [Photophores] Absent [Secondary occipital folds] Absent [Structure of mantle epidermis] With warts* or longitudinal ridges [Fins] Rhombic to sagittate [Terminal pad suckers] 9–18 [Rachidian] Tricuspid [Marginal suckers on manus] 
Absent at maturity
Onychoteuthidae
Marginal suckers on manus