HomeFish encyclopediaRay-finned fishesFlatfishesLefteye floundersMerten's moonflounder Merten's moonflounder (Monolene mertensi) Scientific name: Monolene mertensi Poll, 1959 The Merten's moonflounder (Monolene mertensi) is a marine fish of the family Bothidae. Native range: Eastern Atlantic, Gulf of Guinea to Penrith, Angola. Species factsScientific nameMonolene mertensiFamilyBothidae (Lefteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length10.0Depth range100–700 m (328–2297 ft)EnvironmentMarine; benthopelagic; depth range 100 - 700 mClimateTropicalDistributionEastern Atlantic: Gulf of Guinea to Penrith, Angola.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