O. S. Tattersall, 1952
Posterior margin of carapace with flat, rectangular, backwardly directed lobe, median portion between lobes transverse.
Pleopods: male 2nd pleopod with 9-segmented exopod twice as long as 7-segmented endopod; exopod of male 3rd pleopod with distal segment armed with 2 short subterminal spines and 2 spiniform terminal setae.
Telson about twice as long as broad; lateral margin with 7 spines, apical one particularly long; apical cleft very shallow.
Ref.: O. S. Tattersall (1952).