Only one of first pair of pereopods chelate, other pereopods with simple dactyl

First pereopods with exopods

Pleuron of fifth abdominal somite acutely pointed

Pereopods slender and long propodus of fifth pereopod with 33-43 meral and 74-89 carpal joints

Lesft second pereopods with 8-10 meral and 22-28 carpal joints

Rostrum short and sharp

First pereopod without exopods

Third maxilliped without exopod

Rostrum short, triangular in dorsal view

Right second pereopod with 13-22 meral and 41-50 carpal joints

Left second pereopods with 8 meral and 15-19 carpal joints