HomeFish encyclopediaRay-finned fishesFlatfishesLarge-tooth floundersFivespot flounder Fivespot flounder (Pseudorhombus pentophthalmus) Scientific name: Pseudorhombus pentophthalmus G?nther, 1862 The Fivespot flounder (Pseudorhombus pentophthalmus) is a marine fish of the family Paralichthyidae. Native range: Western Pacific, Japan, Korea, and Indo-China. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 68-76; Anal spines: 0; Anal soft rays: 53 - 57; Vertebrae: 35 - 36. Body pale brownish, with 2 ocelli above and below lateral line and 1 ocellus on posterior third of straight section of lateral line. Teeth in upper jaw small and close-set. Gill rakers long and slender. Soft ray count of pectoral fin refers to that on ocular side (Ref 9774). Body with many ocelli.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePseudorhombus pentophthalmusFamilyParalichthyidae (Large-tooth flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Common length12.0Depth range38–150 m (125–492 ft)EnvironmentMarine; demersal; depth range 38 - 150 mClimateTropicalDistributionWestern Pacific: Japan, Korea, and Indo-China.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceHigh, minimum population doubling time less than 15 months (tmax=3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026