Trachycaris Calman, 1906

Platybema Bate, 1888: 579 (part).

Trachycaris Calman, 1906:31, 33; Holthuis, 1993: 255.

Diagnosis: Carapace ornamented with numerous teeth and tubercles, dorsal line with teeth, rostrum laterally flattened, overreaching antennular peduncle, distal margin serrate; with antennal spine; without post-orbital, hepatic and branchiostegal spines. Anterior margin above eye with a rounded lobe. Mandible with or without palp. Abdominal somites with pleura ventrally serrate. Telson with 3 pairs of dorsolateral cuspidate setae, and 2 pairs of distal cuspidate setae, the inner smallest.