About Chromis hanui Randall & Swerdloff, 1973
This species was formerly known as Chromis hanui Randall & Swerdloff, 1973, and is currently classified as Pycnochromis hanui. It reaches a maximum total length of 6.0 cm, with an oval-shaped body, a pointed snout, and a forked tail. It has 12 dorsal spines, 13 dorsal soft rays, 2 anal spines, and between 13 and 14 anal soft rays. Its common name, Chocolate-dip Chromis, refers to its distinctive appearance: the front half of its body looks as if it has been dipped in chocolate. The species is overall brown, with a black spot at the base of the pectoral fin. The caudal fin, caudal peduncle, and the adjacent sections of the dorsal and anal fins are white. Nuptial males develop a yellowish-brown zone in the center of their body and bright eyes. Males guard the eggs and remove waste from them to keep the eggs healthy. Pycnochromis hanui is a planktivore. This species is endemic to Hawaii. Adult Chocolate-dip Chromis inhabit both inshore and offshore reefs, where they form large groups that swim above corals. They occur at scuba-accessible depths from 6 to 50 meters, in the latitudinal range 28°N to 17°N.
