HomeFish encyclopediaRay-finned fishesFlatfishesTonguefishesRipplefin tonguesole Ripplefin tonguesole (Cynoglossus gilchristi) Scientific name: Cynoglossus gilchristi Regan, 1920 The Ripplefin tonguesole (Cynoglossus gilchristi) is a marine fish of the family Cynoglossidae. Native range: Western Indian Ocean, Delagoa Bay, Mozambique and Natal, South Africa; including Madagascar. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 104-110; Anal spines: 0; Anal soft rays: 82 - 86. Upper side brown, with irregular dark spots and horizontal black lines following scale rows; dark streaks and blotches on fins; 2 lateral lines on eyed side; none on blind side.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCynoglossus gilchristiFamilyCynoglossidae (Tonguefishes)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length16.0EnvironmentMarine; demersalClimateSubtropicalDistributionWestern Indian Ocean: Delagoa Bay, Mozambique and Natal, South Africa; including Madagascar.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