HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersRock sole Rock sole (Lepidopsetta bilineata) Scientific name: Lepidopsetta bilineata Ayres, 1855 The Rock sole (Lepidopsetta bilineata) is a marine fish of the family Pleuronectidae. Native range: North Pacific, Baja California to the eastern Aleutian Islands and extreme southeastern Bering Sea. BiologyOccurs over sand and gravel substrates to depths of 339 m; larvae collected over depths less than 1,000 m. Feeds on mollusks, polychaete worms, crustaceans, brittle stars, and fishes. A tasty food fish; in some years commercial catch in Canada reaches 3,000 t.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLepidopsetta bilineataFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length58.0Depth range0–575 m (0–1886 ft)EnvironmentMarine; demersal; depth range 0 - 575 m, usually 0 - 183 mClimateTemperateDistributionNorth Pacific: Baja California to the eastern Aleutian Islands and extreme southeastern Bering Sea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (K=0.15; tm=9; tmax=22) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026