Pectoral-fin rays15, at least some branched; caudal peduncle without distinctive bar or marking; body without well defined bars; body, head and fins of males densely and evenly covered with melanophores, lower half of head generally darker than upper, in immature males and females less densely covered with melanophores sometimes showing indistinct oblique bars on body and anal fin; supratemporal sensory canal C-shaped, running in a curve in front of the first dorsal-fin spine; single symphysial mandibular pore present; no labial folds.