HomeFish encyclopediaRay-finned fishesFlatfishesLefteye floundersOlive wide-eyed flounder Olive wide-eyed flounder (Engyprosopon maldivensis) Scientific name: Engyprosopon maldivensis Regan, 1908 The Olive wide-eyed flounder (Engyprosopon maldivensis) is a marine fish of the family Bothidae. Native range: Indo-West Pacific, Maldives, Philippines, Borneo, northern and northwestern Australia, Coral Sea, Taiwan, and southern Japan. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 79-83; Anal spines: 0; Anal soft rays: 60 - 64. Caudal fin without a pair of jet-black blotches. Mouth rather large, maxillary extending below middle of lower eye. Pectoral rays elongated into filaments, greatly longer than head length.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEngyprosopon maldivensisFamilyBothidae (Lefteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length12.7Depth range30–215 m (98–705 ft)EnvironmentMarine; demersal; depth range 30 - 215 m, usually 30 - 75 mClimateTropicalDistributionIndo-West Pacific: Maldives, Philippines, Borneo, northern and northwestern Australia, Coral Sea, Taiwan, and southern Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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