HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersRikuzen flounder Rikuzen flounder (Dexistes rikuzenius) Scientific name: Dexistes rikuzenius Jordan & Starks, 1904 The Rikuzen flounder (Dexistes rikuzenius) is a marine fish of the family Pleuronectidae. Native range: Northwest Pacific, Japan and Korean Peninsula. Species factsScientific nameDexistes rikuzeniusFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length22.0Depth range42–200 m (138–656 ft)EnvironmentMarine; demersal; depth range 42 - 200 mClimateTemperateDistributionNorthwest Pacific: Japan and Korean Peninsula.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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