Margins of lips papillate. Only species of Ctenochaetus with angular dorsal and anal fins. Caudal fin of juveniles forked, of adults lunate. Gill rakers on anterior row 20-21, on posterior row 20. Outer soft portion of dorsal and anal fins orange (pale in preservative). Caudal fin white. Edge of lips crenulate. Upper teeth with 2 or 3 denticulations (not including tip). Anterior gill rakers 19-23 (Ref 42056).