(Family):Dorsal fin with a deep notch or completely divided in two. Caudal fin not furcated. Anal fin with 1〜2 spines. Head mostly covered with scales. Lateral line extending to hind margin of caudal fin. Lower jaw with a single or more barbels in some species. (Genus):Lower jaw without barbel. Tip of lower jaw projecting beyond upper jaw. Teeth on jaws canine-like, usually a pair of anteriormost teeth on upper jaw longest. Tips of teeth not arrow-headed. Spinous and soft portions of dorsal fin with a deep notch, or if any completely divided, a gap between them extremely shorter than base of spinous dorsal fin. (Species):Side of body including breast with cycloid scales. Soft dorsal and anal fins covered with 1 or 2 scale rows at base. Posterior margin of upper jaw extending beyond posterior margin of eye. Eye small, its diameter 10.9〜11.8% of HL. Dorsal soft rays 27〜31, anal soft rays usually 8 (Chao, 1978).