Outer margin of antennal scale naked. Male pleopods without modified setae. Pseudobranchia of male 4th pleopod nearly straight. Exopod of uropod shorter than endopod, with 3 spines in distal part of outer margin of proximalsegment.
Ref.: da Silva (1974).
Kingdom Animalia Phylum Crustacea Superorder Peracarida Order Mysidacea Suborder Mysida Family Petalophthalmidae Genus Siriella Species Siriella melloi