Rostrum short, with acute tip. Antennal scale about 2.5 times as long as broad. Telson 1.5 times as long as broad; lateral margin naked in proximal half and with 9 spines in distal half; apicalcleft 0.25 as long as telson, with 28 spines in proximal half.
Ref.: Hansen (1913).
Kingdom Animalia Phylum Crustacea Superorder Peracarida Order Mysidacea Suborder Mysida Family Mysidae Subfamily Mysinae Tribe Erythropini Genus Mysidetes Species Mysidetes crassa