HomeFish encyclopediaRay-finned fishesCatfishAustroglanidsClanwilliam catfish Clanwilliam catfish (Austroglanis gilli) Scientific name: Austroglanis gilli Barnard, 1943 The Clanwilliam catfish (Austroglanis gilli) is a freshwater fish of the family Austroglanididae. Native range: Africa, Clanwilliam-Olifants River system, South Africa. BiologyOccurs among rocks and cobbles and under banks in clear, flowing streams. Feeds on insects, especially the larvae of caddis and mayflies, and other small invertebrates taken from the bottom.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAustroglanis gilliFamilyAustroglanididae (Austroglanids)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length12.7EnvironmentFreshwater; demersalClimateSubtropicalDistributionAfrica: Clanwilliam-Olifants River system, South Africa.Conservation status (IUCN)Vulnerable (VU) (B1ab(iii,v)+2ab(iii,v))Threat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026