HomeFish encyclopediaRay-finned fishesFlatfishesTonguefishesBlackstripe tonguefish Blackstripe tonguefish (Symphurus melasmatotheca) Scientific name: Symphurus melasmatotheca Munroe & Nizinski, 1990 The Blackstripe tonguefish (Symphurus melasmatotheca) is a marine fish of the family Cynoglossidae. Native range: Eastern Pacific, Mexico to Panama. Recorded from Peru. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 90-98; Anal spines: 0; Anal soft rays: 74 - 80; Vertebrae: 49 - 52Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSymphurus melasmatothecaFamilyCynoglossidae (Tonguefishes)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length13.6Common length11.0Depth range15–111 m (49–364 ft)EnvironmentMarine; demersal; depth range 15 - 111 m, usually 15 - 60 mClimateTropicalDistributionEastern Pacific: Mexico to Panama. Recorded from Peru.Conservation status (IUCN)Least Concern (LC)Threat 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