Elassocumella Watling, 1991

Jarquín-González, Jani & García-Madrigal, María Del Socorro, 2013, Annotated checklist and keys for cumaceans (Crustacea: Peracarida) from the Tropical Eastern Pacific, with six new species from the Southern Mexican Pacific, Zootaxa 3721 (3), pp. 201-257 : 234

Genus Elassocumella Watling, 1991

Diagnosis (sensu Watling 1991b): Carapace anteroventral corner broadly rounded; ocular lobe single, middorsal; siphons united medially; pseudorostral lobes of moderate length, not upturned, meeting in front of the eyelobe; antenna 1 peduncle article 2 without process, subequal to the article 3; exopods absent from maxilliped 3 and pereopods in female; uropod peduncle shorter than pleonite 6; uropod exopod basal article not submerged in peduncle, exopod longer than its terminal seta; abdomen shorter than cephalothorax.

Remarks. According to Heard et al. (2007), Elassocumella is distinguished from other nannastacids by the absence of exopods on the pereopods and third maxilliped of the female. However, Heard et al. (ídem) mentioned that a complex of cryptic species may be present in the warm waters of the north-western Atlantic and it is necessary to redescribe the type material.