Outer margin of antennal scale naked. Male 3rd and 4th pleopods with modified setae on ultimate and penultimate joints of both endopod and exopod.
Ref.: W. M. Tattersall (1951), Brattegard (1970a).
Kingdom Animalia Phylum Crustacea Superorder Peracarida Order Mysidacea Suborder Mysida Family Petalophthalmidae Genus Siriella Species Siriella chierchiae