HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersBering flounder Bering flounder (Hippoglossoides robustus) Scientific name: Hippoglossoides robustus Gill & Townsend, 1897 The Bering flounder (Hippoglossoides robustus) is a marine fish of the family Pleuronectidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 67-80; Anal spines: 0; Anal soft rays: 51 - 62. Mouth large; teeth on each jaw uniserial; anterior teeth on each jaw somewhat enlarged, not canine-like; upper eye completely lateral; upper surfaces of eyeballs not scaled; interorbital space narrow, not ridged, and covered with several scale rows; caudal fin slightly rounded.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHippoglossoides robustusFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Depth range0–425 m (0–1394 ft)EnvironmentMarine; demersal; oceanodromous; depth range 0 - 425 m, usually ? - 150 mClimateTemperateDistributionNorth Pacific: Hokkaido, Japan and the Sea of Okhotsk north to northeast of Cape Lisburne, south to northwest of Akutan Island, Aleutian chain, Alaska. Arctic Canada.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=11; k=0.21) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026