Anterior margin of genital coxae rounded
Petasma without pars astringens
Procurved tooth present between bases of first pair of pleopods
Lower antennular flagella with one clasping spine
Apex of telson triangular
Procurved tooth present between bases of first pair of pleopod
Inner margin of basis of third pereopods with a sharply pointed projection
Third and fourth thoracic sternites deeply channelled longitudinally