The rostrum (front part of the carapace) is sigmoid-shaped. The longitudinal suture is long. The orbital spine is small. The hepatic sulcus is very small. In males, the distolateral projections of the petasma are slender, hom-like, and straight. In females, the anterior plate of the thelycum is square and concave. The color of the crustacean is pale brownish or pinkish white.