Chrysiptera hemicyanea (Weber, 1913)
Azure demoiselle
photo by Tanaka, H.

Family:  Pomacentridae (Damselfishes), subfamily: Pomacentrinae
Max. size:  7 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 38 m, non-migratory
Distribution:  Indo-West Pacific: eastern Indian Ocean (Rowely Shoals, Scott Reef, and Ashmore Reef) and Indonesia.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 10-12; Anal spines: 2-2; Anal soft rays: 11-12. Description: Head and body blue with yellow ventral zone extending to ventral and caudal fins. Body depth 1.9-2.0 in SL (Ref. 90102).
Biology:  Adults inhabit lagoon and near shore reefs, usually among branching corals. Found in small aggregation, usually with Acropora corals (Ref. 48636). Feed on plankton about 0.3 to 0.5 m above substratum. 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: Vulnerable (VU); Date assessed: 01 August 2021 (A2c) Ref. (130435)
Threat to humans:  harmless


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