Genus Cumella Sars, 1865

Diagnosis (emended by Watling 1991b): Carapace anteroventral corner acute to slightly rounded, not strongly projecting; ocular lobe single, middorsal; siphons united medially, occasionally slightly separated; pseudorostral lobes of varying length, usually slightly to strongly upturned, meeting in front of the eyelobe; antenna 1 peduncle article 2 with or without process, subequal to or longer than article 3; female maxilliped 3, pereopods 1 and 2 with exopods; male maxilliped 3 and pereopods 1–4 with exopods; uropod peduncle usually as long as or longer than pleonite 6; uropod exopod basal article short, not submerged in peduncle, exopod much longer that its terminal seta.