|size||Up to 30cm|
|behaviour||Doesn't cling to the reef like smaller Butterflyfish|
|range||Throughout the Indian Ocean to the Pacific|
Largest of the Butterflyfish. There are others with vertical lines, but this one has a single black bar across the eye, and another which extends from the top of the back to, and including, the base of the tail (caudal peduncle).