Anterior nostril pierced on front side of a flap; processus dentiformis present; shallow median notch in both upper and lower lips; lower jaw with a shallow notch; lateral line from complete to reaching only level of pelvic-fin origin; anus about 1-2 eye diameters in front of anal-fin origin; 8.5 branched dorsal-fin rays; 5.5 branched anal-fin rays; caudal fin emarginate, with 8+8 branched rays; axillary pelvic lobe present; body with 11-16 bars, wider than interspaces; a broad midlateral stripe superimposed on bars; in some specimens bars fainter, in other stripe very faint; black bar at caudal-fin base complete, usually quite faint, a small black spot at base of anterior dorsal rays (Ref. 36949).