HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesPaletail damsel Paletail damsel (Pomacentrus trichrourus) Scientific name: Pomacentrus trichrourus G?nther, 1867 The Paletail damsel (Pomacentrus trichrourus) is a marine fish of the family Pomacentridae. BiologyDorsal spines (total): 14; Dorsal soft rays (total): 14-16; Anal spines: 2; Anal soft rays: 15 - 17. Exhibits geographic color variations.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePomacentrus trichrourusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length11.0Depth range1–43 m (3–141 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 1 - 43 mClimateTropicalDistributionWestern Indian Ocean: Red Sea and the east African coast south to Natal, South Africa. Reported as likely to occur at Seychelles in Smith & Smith 1963 but not listed as such in Allen 1991.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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