Body slender, moderately robust; snout broadly rounded; dorsal and anal fins long based, low; jaw teeth fused. Juveniles and females are a dark mottled greenish-greyish to brown above and greenish-yellow below with an incomplete silvery stripe along the sides. Males are darker green, or blue to black with brilliant blue lines on the head, pectoral fins and tail. To 40 cm.
A common species in the surge zone amongst Ecklonia and other brown macroalgae on which it feeds.
On exposed reefs along the coast, often close to shore amongst kelp and large macroalgae in depths of 1-30 m.
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed