Length to 13 mm (Hyperiella macronyx 1). Pereon not so plump as in other species of the genus. MX II with 3 spines at apex of outer lobe. MXP without row of spines on distal margin of basal plate. P V-VI subequal (VI slightly longer), longer than other P. Basipodite of UR III about twice as long as telson (Hyperiella macronyx 2). Telson slightly longer than wide. Posteroventral corners of all epimeral plates rounded, with single fine denticle at each.