HomeFish encyclopediaRay-finned fishesFlatfishesLefteye floundersSlim flounder Slim flounder (Monolene antillarum) Scientific name: Monolene antillarum Norman, 1933 The Slim flounder (Monolene antillarum) is a marine fish of the family Bothidae. Native range: Western Atlantic, Canada to Georges Bank to Florida, USA and northern Gulf of Mexico. Reported from the northern coast of South America. Species factsScientific nameMonolene antillarumFamilyBothidae (Lefteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length11.8EnvironmentMarine; demersalClimateSubtropicalDistributionWestern Atlantic: Canada to Georges Bank to Florida, USA and northern Gulf of Mexico. Reported from the northern coast of South America.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