HomeFish encyclopediaRay-finned fishesCatfishSea catfishesMadamango sea catfish Madamango sea catfish (Cathorops spixii) Scientific name: Cathorops spixii Agassiz, 1829 The Madamango sea catfish (Cathorops spixii) is a brackish-water fish of the family Ariidae. Native range: Western Atlantic, Atlantic and Caribbean rivers and estuaries from Colombia to Brazil. Biology3 pairs of barbels on rostral region, 2 pairs on lower jaw, 1 pair on posterior end of maxilla; body dark brown or black dorsally, pale yellow ventrally; fin membranes brown, with small black spots. Head is widely flattened from above, nostril rounded, mouth inferior. The cephalic surface hardly reaches the level of the eyes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCathorops spixiiFamilyAriidae (Sea catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Common length20.0Depth range50 m (164 ft)EnvironmentMarine; brackish; demersal; depth range ? - 50 mClimateTropicalDistributionWestern Atlantic: Atlantic and Caribbean rivers and estuaries from Colombia to Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansTraumatogenicUsesFisheries: minor 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