HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersDeep-sea sole Deep-sea sole (Embassichthys bathybius) Scientific name: Embassichthys bathybius Gilbert, 1890 The Deep-sea sole (Embassichthys bathybius) is a marine fish of the family Pleuronectidae. Native range: North Pacific, Japan to the Gulf of Alaska and to Mexican border. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 109-117; Anal spines: 0; Anal soft rays: 95 - 98. Dorsal origin over posterior edge of pupil. Caudal imperfectly rounded. Pectorals short.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEmbassichthys bathybiusFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length47.0Depth range41–1800 m (135–5906 ft)EnvironmentMarine; bathydemersal; depth range 41 - 1800 m, usually 500 - 950 mClimateDeep-waterDistributionNorth Pacific: Japan to the Gulf of Alaska and to Mexican border.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesGamefish: yesResilienceMedium, 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