Endopod of uropods slightly shorter than exopod; inner margin armed along its length with spines, distal 3 of which are very long, stout and inwardly curved. Telson 1.5-1.9 times as long as broad; lateral margin with about 25 spines on distal 2/3; pair of plumose setae lacking.
Ref.: W. M. Tattersall (1923), Clarke (1956), Almeida Prado (1974).
Kingdom Animalia Phylum Crustacea Superorder Peracarida Order Mysidacea Suborder Mysida Family Mysidae Subfamily Mysinae Tribe Erythropini Genus Promysis Species Promysis atlantica