Species of fish
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Chaetodon pelewensis, the dot dash butterflyfish, spotbanded butterflyfish or punctato butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the western Pacific Ocean.
Description.
"Chaetodon pelwensis" has a dusky yellow body with diagonal stripes across the body and black-margined gold vertical bar through the eye. There is a black spot on the head. The stripes break up into spots towards the head and on the lower flanks. The margins of the fins are bright yellow and the base of the caudal fin is bright orange. The dorsal fin has 13-14 spines and 22-25 soft rays while the anal fin has 3 spines and 17-18 soft rays. It attains a maximum total length of .
Distribution.
"Chaetodon pelewensis" is found across the southern Pacific Ocean from Papua New Guinea to the Tuamotu Archipelago. This species is abundant on the Great Barrier Reef and in the Coral Sea. In Australia it extends as far south as central New South Wales and Lord Howe Island.
Habitat and biology.
"Chaetodon pelewensis" is found in coral reefs at depths of at least . They feed largely on coral polyps and some benthic invertebrates. This species is oviparous and monogamous, breeding in pairs. Occasionally it will form mixed pairs with the spotband butterflyfish ("C. punctatofasciatus"), and these species are known to hybridise.
Taxonomy and etymology.
"Chaetodon pelewensis" was first formally described in 1868 by the Austrian ichthyologist Rudolf Kner (1810-1869) with the type locality given as Palau in the Western Pacific, "Pelew Inseln" in German, in error when the correct type locality is probably the Society Islands. The specific name reflects the erroneous designation of the type locality. This species is placed in the subgenus "Exornator", if the genus "Chaetodon" is split up, "Exornator" might become a subgenus of "Lepidochaetodon".
Utilisation.
"Chaetodon pelewensis" is commonly found in the aquarium trade and in the period 1988 to 2002 over 12,000 individuals of this species were traded.
References.
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