Fish ID: Oval Spot Butterflyfish

Butterflyfish oval spot nsw
Family Butterflyfish (CHAETODONTIDAE)
species Chaetodo speculum
size Up to 14 cm
locality Rocks and reef
behaviour Solitary or in pairs
range Throughout the Indian Ocean to the Pacific

A number of butterflyfish sport spots over various kinds.  The oval spot is yellow all over apart from its oval spot and black bar across the face.