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Pycnochromis hanui

Species of fish From Wikipedia, the free encyclopedia

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Pycnochromis hanui, commonly known as chocolate-dip chromis, is a species of damselfish endemic to Hawaii.[3]

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Description and biology

Pycnochromis hanui was formerly known as Chromis hanui.[2] They reach a max length of 6.0 cm,[4] and have an oval shaped body with a pointed nose and forked tail.[2] They have a total of 12 dorsal spines, 13 dorsal soft rays, 2 anal spines, and 13-14 anal soft rays.[4] The common name matches its appearance. The front half of its body looks as if it has been dipped in chocolate.[2] They are brown with a black spot on the pectoral fin base.[4] The caudal fin, caudal peduncle and adjacent part of the dorsal and anal fins are white.[4] Nuptial males have a yellowish-brown zone in the center and bright eyes.[2] Males guard and remove waste from the eggs, keeping them healthy.[4] Pycnochromis hanui are planktivore.[5]

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Distribution and habitat

Pycnochromis hanui is endemic to Hawaii.[2] Adult Chocolate-dip Chromis live in inshore and offshore reefs.[4] They are found in mass groups above corals. They live in scuba depths of 6-50 meters, and live in 28°N - 17°N temperatures.[4]

References

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