HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersFlathead sole Flathead sole (Hippoglossoides elassodon) Scientific name: Hippoglossoides elassodon Jordan & Gilbert, 1880 The Flathead sole (Hippoglossoides elassodon) is a marine fish of the family Pleuronectidae. Native range: North Pacific, Sea of Japan, Sea of Okhotsk, and the Bering Sea along the western coast of America to Pt. Reyes, central California, USA. BiologyFound on soft bottom. Adults usually below 180 m. Feeds on clams, worms and crustaceans. Taken by shrimp and otter trawls.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHippoglossoides elassodonFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length52.0Depth range0–1050 m (0–3445 ft)EnvironmentMarine; demersal; oceanodromous; depth range 0 - 1050 mClimateTemperateDistributionNorth Pacific: Sea of Japan, Sea of Okhotsk, and the Bering Sea along the western coast of America to Pt. Reyes, central California, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=1-3; Fec=72,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026