HomeFish encyclopediaRay-finned fishesFlatfishesLarge-tooth floundersSpotfin flounder Spotfin flounder (Cyclopsetta fimbriata) Scientific name: Cyclopsetta fimbriata Goode & Bean, 1885 The Spotfin flounder (Cyclopsetta fimbriata) is a marine fish of the family Paralichthyidae. Native range: Western Atlantic, Canada to North Carolina, USA to S?o Paulo, Brazil. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 78-87; Anal spines: 0; Anal soft rays: 59 - 67Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCyclopsetta fimbriataFamilyParalichthyidae (Large-tooth flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length33.0Common length25.0Depth range20–230 m (66–755 ft)EnvironmentMarine; reef-associated; depth range 20 - 230 mClimateSubtropicalDistributionWestern Atlantic: Canada to North Carolina, USA to S?o Paulo, Brazil.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