Aspect: Dramatic livery changes according to age or phase. Juveniles are yellow with "fluo blue" side-line, then gently acquire darker upper body to eventually adopt a more sphisticated change of colours, turning a more plain blue or pink body before acquing a greenish forebody to finally stabilise (male phase) with a clear yellow forebody with a full vertical midbody black bar, black rear upper body and white aft belly. Population: Common. Notable feature: Whatever the phase (except juvenile) can be easily identified thanks to distinctive scribbly darker lines radiating backwards and upwards from upper rear eye quarters. Environment: Around rocks and coral boulders. Behaviour: In constant movement, but will approach a hand digging into the coral sand bottom in the hope of catching food.
