HomeFish encyclopediaRay-finned fishesFlatfishesTonguefishesSenegalese tonguesole Senegalese tonguesole (Cynoglossus senegalensis) Scientific name: Cynoglossus senegalensis Kaup, 1858 The Senegalese tonguesole (Cynoglossus senegalensis) is a brackish-water fish of the family Cynoglossidae. Native range: Eastern Atlantic, Mauritania to Angola. BiologyFound on sand and mud bottoms of coastal waters. Feeds on mollusks, shrimps, crabs and fish. Sold as frozen filet under the name 'filets de sole'.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCynoglossus senegalensisFamilyCynoglossidae (Tonguefishes)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length66.0Common length25.0Depth range10–110 m (33–361 ft)EnvironmentMarine; brackish; demersal; depth range 10 - 110 mClimateTropicalDistributionEastern Atlantic: Mauritania to Angola.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (K=0.10) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026