HomeFish encyclopediaRay-finned fishesCatfishVelvet catfishesTollo Tollo (Diplomystes chilensis) Scientific name: Diplomystes chilensis Molina, 1782 The Tollo (Diplomystes chilensis) is a freshwater fish of the family Diplomystidae. Native range: South America, Rivers near Valparaiso and Santiago, central Chile. BiologyImportant food fish and is referred to in books and the popular press.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiplomystes chilensisFamilyDiplomystidae (Velvet catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length23.0EnvironmentFreshwater; demersalClimateSubtropicalDistributionSouth America: Rivers near Valparaiso and Santiago, central Chile.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: commercial; gamefish: yes SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026