HomeFish encyclopediaRay-finned fishesFlatfishesLefteye floundersLargescale flounder Largescale flounder (Engyprosopon grandisquama) Scientific name: Engyprosopon grandisquama Temminck & Schlegel, 1846 The Largescale flounder (Engyprosopon grandisquama) is a marine fish of the family Bothidae. Native range: Indo-Pacific, East Africa and throughout the Indian Ocean to the Indo-Australian Archipelago and New Caledonia, north to southern Japan. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 79-87; Anal spines: 0; Anal soft rays: 59 - 65. A pair of jet-black blotches on caudal fin placed between 3rd and 4th rays counted from above and below respectively. Body deep, its depth more than 1/2 of SL. Pectoral fin short, equal to or less than head length. In male, body on blind side stained with dark-gray.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEngyprosopon grandisquamaFamilyBothidae (Lefteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Common length10.0Depth range7–200 m (23–656 ft)EnvironmentMarine; reef-associated; depth range 7 - 200 mClimateTropicalDistributionIndo-Pacific: East Africa and throughout the Indian Ocean to the Indo-Australian Archipelago and New Caledonia, north to southern Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceHigh, minimum population doubling time less than 15 months (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