The members of the family Chaetodontidae, popularly know as butterflyfishes, coralfishes and bannerfishes. Most species of butterflyfish live in the warm tropical seas of the Indo-Pacific (about 90%) with the remainder in the Atlantic. Only a few species are found in subtropical waters, bordering onto subtemperate zones. The butterflyfish have a highly compressed body in which the back is raised , forming an elongate-oval to near circular shape in some; a small protactible mouth with brush-like teeth in the jaws; a continuous dorsal fin with strong and sharp spines in the anterior section, followed by a large-surface soft part; an anal fin mirroring the soft part of the dorsal fin , headed by 3-5 strong spines, of which the 2nd is often greatly enlarged.
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Place of origin:Western Indian Ocean
Western Indian Ocean, from Madagascar to the Maldives, and separate populations in Cocos Keeling Atoll and Christmas Island region that are considerably different in colour. Typically found along deep outer reef walls, usually over 40m depth. Occurs singly in pairs, rarely seen in small groups but, in general, observations have been limited because of their depth preference, occurring to at least 80m, They feed on a variety of small invertebrates, zooplankton and algae. A beautifully marked species, readily identified by the two oblique black bands and yellow colouration. Length to 12cm,