(Genus):Lower jaw without barbel. Tip of lower jaw not projectiong beyond upper jaw. Preopercular margin with spines. Swimbladder consisting of two chambers, anterior chamber with a pair of appendages. (Species):Angle of preopercle with 2 spines. Lower jaw with 6 (3 pairs) sensory pores. Tip of snout equal to tip of upper jaw. Position of tip of upper jaw higher than ventral margin of eye. Posterior margin of upper jaw slightly extending beyond posterior margin of eye. Eye diameter 20.2〜23.3% of HL. Interorbital width 35.9〜38.6% of HL. Head and breast covered with cycloid scales, other part of body covered with ctenoid scales. Tip of pectoral fin reaching to anus, tip of pelvic fin not reaching to anus. Dorsal 2/3 of pectoral fin darkly pigmented. Oral valve near symphisis of lower jaw darkly pigmented.