Chevron butterflyfish
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Order: Perciformes
Family: Chaetodontidae

[Photo] Chevron butterflyfish (Chaetodon trifascialis). Source: Flickr (www.flickr.com/photos/54727350@N00/459804780/). Date: March 23, 2007. Author: eNil (www.flickr.com/photos/54727350@N00/).

Chaetodon trifascialis is known as the chevron butterflyfish, the triangulate butterflyfish or the v-lined butterflyfish.

Range
It is found in the Indo-Pacific from the Red Sea and East Africa to the Hawaiian and Society islands.

Description
Adults have an elongate, white body with narrow chevron markings and may be up to 18cm in length.

Juveniles have a mostly yellow tail and a broad black band extending from the rear of the dorsal fin to the rear of the anal fin. The tail pattern and the colouring of the posterior part of body changes dramatically with growth.

Diet
polyps and mucus of Acropora corals.

Habit and Habitat
Chaetodon trifascialis is a territorial species which occurs in shallow lagoon and semi-protected seaward reefs, closely associated with tabular and staghorn Acropora corals. They are seen at depths ranging from 2 - 30m.

Adults are either seen to swim alone or in pairs while juveniles are secretive among coral branches. They are oviparous and form pairs during breeding.

http://en.wikipedia.org/wiki/Chevron_butterflyfish

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