Characterized by having variable color, often pale grey to yellowish with row of large, diffuse blackish blotches on lower half of side; blue-edged yellow spots prominent on lower side between or on margin of blackish blotches; 6-7 diffuse, blackish saddles on back; head with yellow oblique bands; yellow pelvic fins with blue spots in adult ale; dorsal fin rays with short brown lines; prolonged filament formed by third dorsal spine, sometimes more than 50% SL in adult male; united pelvic fins, presence of well developed frenum; longitudinal scale series 46-52; circumpeduncular scales 11-12; cycloid body scales; head without scales except side of nape; greatest depth of body 5.8-6.5 in SL: ovate caudal fin, longer than head length (Ref. 90102).