Chrysiptera rex (Snyder, 1909)
King demoiselle
photo by Randall, J.E.

Family:  Pomacentridae (Damselfishes), subfamily: Pomacentrinae
Max. size:  7 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 20 m, non-migratory
Distribution:  Indo-West Pacific: Ryukyu Is., Taiwan, Palau, Indonesia, and offshore reefs of Western Australia.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 13-14; Anal spines: 2-2; Anal soft rays: 13-14. Description: Adult overall yellowish white, forehead yellow-orange extending to anterior of back; scales with a blue dot each, pectoral-fin base and axil orange; operculum upper edge spot dark small. Juveniles bright pink (Ref. 48636).
Biology:  Adults are found in 1-6 m (Ref. 7247) and in coastal to outer reef crests to depths of about 20 m (Ref. 48636). They occur solitarily or in groups in reef margins and upper seaward slopes subject to mild surge (Ref. 9710). Feed mainly on algae. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Diurnal species (Ref. 113699).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 August 2021 Ref. (130435)
Threat to humans:  harmless


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