HomeFish encyclopediaRay-finned fishesPerch-like fishCardinalfishesGraceful-tailed cardinalfish Graceful-tailed cardinalfish (Pseudamiops gracilicauda) Scientific name: Pseudamiops gracilicauda Lachner, 1953 The Graceful-tailed cardinalfish (Pseudamiops gracilicauda) is a marine fish of the family Apogonidae. Native range: Indo-Pacific, Chagos Islands to the Hawaiian Islands, north to Taiwan and the Ryukyu Islands, south to the Great Barrier Reef and Rapa. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 2; Anal soft rays: 7 - 8Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePseudamiops gracilicaudaFamilyApogonidae (Cardinalfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length5.0Common length3.4Depth range5–30 m (16–98 ft)EnvironmentMarine; reef-associated; depth range 5 - 30 mClimateTropicalDistributionIndo-Pacific: Chagos Islands to the Hawaiian Islands, north to Taiwan and the Ryukyu Islands, south to the Great Barrier Reef and Rapa.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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