3.1.1. Abyssoleucon gen. n.
3.1.1.1. Diagnosis. Long serrated dorsomedian line on the carapace;
teeth ventrally of the pseudorostrum; subrostral tooth relatively
small, ending at level of ocular lobe; first antenna with accessory
flagellum as long as the basal article of the main flagellum; femalewith exopods on pereopods 1–3, male with exopods on pereopods
1–4; teeth on the basal article of the exopods of maxilliped
3 and pereopod 1, tooth on exopods basal article of pereopod
2 and pereopod 3; uropod endopod two-segmented; no pleopods
in male.