Neopomacentrus cyanomos (Bleeker, 1856)
Regal demoiselle
Neopomacentrus cyanomos
photo by Eric Keung@114°E Hong Kong Reef Fish Survey

Family:  Pomacentridae (Damselfishes), subfamily: Pomacentrinae
Max. size:  10 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 5 - 30 m, non-migratory
Distribution:  Indo-West Pacific: Persian Gulf (Ref.80050); Red Sea and East Africa to the Philippines, north to southern Japan, south to northern Australia and Melanesia (except Fiji).
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 11-12; Anal spines: 2-2; Anal soft rays: 11-12. Description: Indonesian fish metallic green to black with a distinctive white spot at end on dorsal fin base (Ref. 48636). Ear spot black. Caudal fin yellow, margin blackish. Sumatran variant has white caudal fin and has no tinge of yellow (Ref. 90102).
Biology:  Adults inhabit inshore and offshore coral reefs; also in harbors and protected outer reef slopes and current prone habitats. Form schools in harbors in depths from near surface to about 25 m (Ref. 48636). 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: 23 September 2021 Ref. (130435)
Threat to humans:  harmless


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