HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersDiamond turbot Diamond turbot (Hypsopsetta guttulata) Scientific name: Hypsopsetta guttulata Girard, 1856 The Diamond turbot (Hypsopsetta guttulata) is a brackish-water fish of the family Pleuronectidae. Native range: Eastern Pacific, Cape Mendocino in northern California, USA to southern Baja California, Mexico; isolated population in the Gulf of California. BiologyOccur on muddy or sandy bottoms, often in bays and sloughs. Feed almost totally during daylight on polychaetes and siphons of bivalves. Pelagic spawners.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHypsopsetta guttulataFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length46.0Depth range1–50 m (3–164 ft)EnvironmentMarine; brackish; demersal; depth range 1 - 50 m, usually 1 - 20 mClimateSubtropicalDistributionEastern Pacific: Cape Mendocino in northern California, USA to southern Baja California, Mexico; isolated population in the Gulf of California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=2.5; tmax=8) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026