HomeFish encyclopediaRay-finned fishesFlatfishesTonguefishesRoundhead toungesole Roundhead toungesole (Cynoglossus dispar) Scientific name: Cynoglossus dispar Day, 1877 The Roundhead toungesole (Cynoglossus dispar) is a marine fish of the family Cynoglossidae. Native range: Western Indian Ocean, Pakistan to Madras, India. BiologyInhabits sandy and muddy bottoms of the continental shelf. Feeds predominantly on bottom-living invertebrates.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCynoglossus disparFamilyCynoglossidae (Tonguefishes)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length38.9Common length30.0EnvironmentMarine; demersalClimateDeep-waterDistributionWestern Indian Ocean: Pakistan to Madras, India.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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