Carapace without postorbital spine, cervical groove very faint or absent

Exopod present only on first maxilliped

Last two apirs of pereopods well developed

Endopods of second pair of pleopods in males bearing only appendix masculina

Third and fourth pair of pleopods single-branched

Rostral carina straight or concave, five rostral teeth borne by the carapace

Abdominal pleura of 1st and 2nd segment unispinose and 3rd, 4th and 5th with 3 spines