|size||Up to 20cm|
|locality||Lagoons and reefs|
|behaviour||Solitary or small groups|
White body with lemon yellow dorsal and anal fins and the lemon yellow extending over the top of the back. A dark line through the eye, and dark margin on the rear of the dorsal and anal fins running continuous through the caudal peduncle. A large black spot on the top of the back gives it its name.