HomeFish encyclopediaRay-finned fishesCatfishNorth American freshwater catfishesCheckered madtom Checkered madtom (Noturus flavater) Scientific name: Noturus flavater Taylor, 1969 The Checkered madtom (Noturus flavater) is a freshwater fish of the family Ictaluridae. Native range: North America, upper White River drainage (excluding Black River system) in Missouri and Arkansas, USA. BiologyOccurs in pools and backwaters of clear small to medium rivers with moderate to high gradients.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNoturus flavaterFamilyIctaluridae (North American freshwater catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Common length7.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: upper White River drainage (excluding Black River system) in Missouri and Arkansas, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=5) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026