Description: Characterized by bluish grey color, grading to white ventrally; head length 8-9 in TL; laterally compressed body and tail; greatest depth of body 24-35 in TL; origin of dorsal fin 1.3-1.5 head length behind anus; dorsal and anal fins confluent with caudal fin; no pectoral fins; rounded snout, slightly projecting beyond lower jaw; anterior nostrils tubular about two-thirds eye diameter; posterior nostrils anterior to front edge of eye, opening at edge of upper lip and covered by flap; relatively large eye, posterior edge above corner of mouth; small gill opening, slightly below midlateral position; conical teeth small, in 2-3 rows in upper jaw and about four rows in lower jaw; vomer without teeth (Ref. 90102).