HomeFish encyclopediaRay-finned fishesFlatfishesLarge-tooth floundersRinged flounder Ringed flounder (Pseudorhombus annulatus) Scientific name: Pseudorhombus annulatus Norman, 1927 The Ringed flounder (Pseudorhombus annulatus) is a marine fish of the family Paralichthyidae. Native range: Western Indian Ocean, off Muscat, Oman. Species factsScientific namePseudorhombus annulatusFamilyParalichthyidae (Large-tooth flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length10.5Depth range23–55 m (75–180 ft)EnvironmentMarine; demersal; depth range 23 - 55 mClimateTropicalDistributionWestern Indian Ocean: off Muscat, Oman.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