Zimmer, 1916
Outer margin of distal segment of endopod of maxilla extremely long.
Exopod of male 4th pleopod more than twice as long as endopod, its last segment very long, more than 4 times as long as preceding segment.
Lateral margin of telson with spines throughout.
Ref.: Zimmer (1916), O. S. Tattersall (1955).