Typton O. G. Costa, 1844

Typton— O. G. Costa, 1844:288; Holthuis, 1951:151; Chace, 1972:46.

Diagnosis. Rostrum is simple and compressed, usually spinelike, dorsal and ventral margin unarmed. Carapace with antennal spine. Mandible without palp. Maxillipeds with exopods. Third to fifth pereopods with bifid dactyli. Telson with 2 pairs of dorsal spines and 3 pairs of spines on posterior margin.