 The caudal fin is asymmetrical with a moderately long upper lobe.The caudal peduncle is slightly compressed with weak lateral keels.The dermal denticles are small, with a flattened crown bearing small ridges and backward-pointing cusps It is dark brown above and paler below, sometimes with a few dark blotches on the sides and belly and/or a white blotch between the corner of the mouth and the first gill slit.