HomeFish encyclopediaRay-finned fishesFlatfishesTonguefishesBanded tongue-fish Banded tongue-fish (Symphurus fasciolaris) Scientific name: Symphurus fasciolaris Gilbert, 1892 The Banded tongue-fish (Symphurus fasciolaris) is a brackish-water fish of the family Cynoglossidae. Native range: Eastern Central Pacific, Bah?a Magdalena, Mexico and the Gulf of California to Panama. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 90-97; Anal spines: 0; Anal soft rays: 75 - 80; Vertebrae: 48 - 52. Body flat and somewhat elongated, with a rounded anterior border; both eyes on the left side; dorsal fin with 90 to 97 rays; anal fin with 75 to 80 rays; caudal fin with 10 rays; body light to dark brown, usually with 5 to 7 dark transverse bars and sometimes with small, scattered blotches on the eyed side; caudal fin with a very dark stain.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSymphurus fasciolarisFamilyCynoglossidae (Tonguefishes)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length16.2Common length15.0Depth range1–50 m (3–164 ft)EnvironmentMarine; brackish; demersal; depth range 1 - 50 m, usually 1 - 25 mClimateTropicalDistributionEastern Central Pacific: Bah?a Magdalena, Mexico and the Gulf of California to Panama.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceMedium, 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