HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesThreespot damsel Threespot damsel (Pomacentrus tripunctatus) Scientific name: Pomacentrus tripunctatus Cuvier, 1830 The Threespot damsel (Pomacentrus tripunctatus) is a brackish-water fish of the family Pomacentridae. Native range: Indo-West Pacific, Sri Lanka, Andaman Sea (Phuket), and Indo-Australian Archipelago eastward to New Britain, Solomon Islands, Santa Cruz Islands, and Vanuatu. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 14-15; Anal spines: 2; Anal soft rays: 14 - 15. A dull greenish black species with a small black saddle-spot on the caudal peduncle, edged with blue. Juveniles with a blue-edged ocelli near the end of the dorsal fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePomacentrus tripunctatusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.5Depth range0–3 m (0–10 ft)EnvironmentMarine; brackish; reef-associated; non-migratory; depth range 0 - 3 mClimateTropicalDistributionIndo-West Pacific: Sri Lanka, Andaman Sea (Phuket), and Indo-Australian Archipelago eastward to New Britain, Solomon Islands, Santa Cruz Islands, and Vanuatu.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026