(Family):Gill opening well developed. Caudal joints to dorsal and anal fins. Anterior nostril well above upper lip. Supramaxillary present. (Genus):Scales elongate or elliptical, arranged at oblique angles to each other (Fig.). Dorsal and lateral aspect of head usually naked. Pelvic fin inserted below anterior margin of eye; each rays unequal length. Snout spine usually absent. Developed gill rakers on 1st arch 4〜7. Dorsal fin rays less than 150; anal fin rays less than 125. (Species):No spine on snout, opercle, and preopercle. Upper jaw reaching below hind margin of orbit. Vomerine teeth inverted-T shaped band. Palatine teeth present. Head completely naked. Developed gill rakers 4. Dorsal fin pale with blackish margin; anal fin dusky with wide black margin.