Reproductive systems and mating traces of the Sub-Antarctic deep-sea squid Onykia ingens (Cephalopoda: Onychoteuthidae)

We performed quantitative assessment of the reproductive systems of deep-sea species Onykia ingens. Our goals were to: 1) quantify spermatophore production 2) determine the (preferred) location for spermatangia deposition; 3) investigate whether male and female O. ingens mate with multiple mates. Towards this end we examined male and female O. ingens specimens from Falkland Island and New Zealand waters.