HomeMarine aquarium fishClownfish & damselfishYellowtail dascyllus Yellowtail dascyllus (Dascyllus flavicaudus) Scientific name: Dascyllus flavicaudus Randall & Allen, 1977 The Yellowtail dascyllus (Dascyllus flavicaudus) is a marine fish of the family Pomacentridae. Native range: Eastern Central Pacific, southeastern Oceania including Society Islands, Tuamoto Islands, Pitcairn Group, and Rapa. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 15-16; Anal spines: 2; Anal soft rays: 13 - 14Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDascyllus flavicaudusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Depth range3–40 m (10–131 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 3 - 40 mClimateTropicalDistributionEastern Central Pacific: southeastern Oceania including Society Islands, Tuamoto Islands, Pitcairn Group, and Rapa.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More clownfish & damselfishYellowfin damselfishChrysiptera flavipinnisMarginate dascyllusDascyllus marginatusBarrier reef anemonefishAmphiprion akindynosBluestreak damselfishNeoglyphidodon oxyodonCobalt chromisChromis flavicaudaChocolatedip chromisChromis dimidiataSee all clownfish & damselfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026