| Pycnochromis hanui | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Family: | Pomacentridae |
| Genus: | Pycnochromis |
| Species: | P. hanui |
| Binomial name | |
| Pycnochromis hanui (Randall & Swerdloff, 1973) | |
| Synonyms [1] | |
Chromis hanui | |
Pycnochromis hanui, commonly known as chocolate-dip chromis, is a species of damselfish endemic to Hawaii. [2]
Pycnochromis hanui was formerly known as Chromis hanui. [1] They reach a max length of 6.0 cm, [3] and have an oval shaped body with a pointed nose and forked tail. [1] They have a total of 12 dorsal spines, 13 dorsal soft rays, 2 anal spines, and 13-14 anal soft rays. [3] The common name matches its appearance. The front half of its body looks as if it has been dipped in chocolate. [1] They are brown with a black spot on the pectoral fin base. [3] The caudal fin, caudal peduncle and adjacent part of the dorsal and anal fins are white. [3] Nuptial males have a yellowish-brown zone in the center and bright eyes. [1] Males guard and remove waste from the eggs, keeping them healthy. [3] Pycnochromis hanui are planktivore. [4]
Pycnochromis hanui is endemic to Hawaii. [1] Adult Chocolate-dip Chromis live in inshore and offshore reefs. [3] 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. [3]
The graysby is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is in the family Serranidae which also includes the anthias and sea basses. It is found in the western Atlantic. It is associated with reefs and is a quarry species for commercial and recreational fisheries.
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Epinephelus flavocaeruleus, commonly called blue-and-yellow grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is associated with reefs in the Indian Ocean.
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Epinephelus geoffroyi, the Red Sea spotted grouper, is a species of marine fish in the genus Epinephelus in the grouper family. The species was first described in 1870. E. geoffroyi was previously considered a synonym of Epinephelus chlorostigma, but Randall et al. recognized it as a valid species in 2013.
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