(Family):Three lowermost pectoral rays free. No barbel on lower jaw. (Genus):No spinous plate on both sides of dorsal fin base. Dorsal spines usually 10. Scales present on opercular membrane. (Species):Serrated rostral exsertion extending beyond upper lip, with a strong spine directing backwardly at its posterior end. Second and 3rd infraorbital bones with a spine respectively. Preocular spine single. No supraocular spine. A triangular projection present at postocular region. Preopercular spine with a supplemental small spine at its base. No nasal spine. Median pectoral rays shorter than upper and lower rays. Length of pectoral fin 38〜41% of SL. Scaly area on thorax not extending forwardly beyond bases of lowermost pectoral rays or slightly extending beyond them. A dark spot present between 4th and 5th dorsal spines. No fleshy flap on dorsal region of eye. Orbit diameter 21〜22% of HL. Interorbital width 48〜54% of orbit diameter.