HomeFish encyclopediaRay-finned fishesCatfishSea catfishesGuri sea catfish Guri sea catfish (Genidens genidens) Scientific name: Genidens genidens Cuvier, 1829 The Guri sea catfish (Genidens genidens) is a brackish-water fish of the family Ariidae. Native range: Southwest Atlantic, Atlantic draining rivers of southern South America. Species factsScientific nameGenidens genidensFamilyAriidae (Sea catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length35.0Common length35.0EnvironmentMarine; brackish; demersalClimateSubtropicalDistributionSouthwest Atlantic: Atlantic draining rivers of southern South America.Conservation status (IUCN)Least Concern (LC)Threat to humansTraumatogenicUsesFisheries: commercialResilienceVery Low, minimum population doubling time more than 14 years (Fec=5) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026