Robustunguis gen. nov., a genus of decapod associated laophontids (Copepoda: Harpacticoida)

The genus Robustunguis gen. nov. is erected for two species of laophontid harpacticoids: R. ungulatus spec. nov. and R. minor spec. nov. Both species were recovered from washings of decapod crustaceans collected along the coasts of Florida (U.S.A.) and Shimoni (Kenya). Robustunguis gen. nov. is closely related to Coullia Hamond, but differs significantly from the latter because of the remarkable prehensile first leg adapted to clench the bristles covering the body and body parts of the hosts.