HomeFish encyclopediaRay-finned fishesCatfishNorth American freshwater catfishesSpotted bullhead Spotted bullhead (Ameiurus serracanthus) Scientific name: Ameiurus serracanthus Yerger & Relyea, 1968 The Spotted bullhead (Ameiurus serracanthus) is a freshwater fish of the family Ictaluridae. BiologyOccurs in deep rock-bottomed or sand-bottomed pools of small to medium swift rivers and impoundments.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAmeiurus serracanthusFamilyIctaluridae (North American freshwater catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length28.0Common length19.0EnvironmentFreshwater; demersalClimateSubtropicalDistributionNorth America: Gulf Coastal Plain in Suwannee, St. Marks, Ochlockonee, Apalachicola and St. Andrews Bay drainages of northern Florida, southern Georgia and southeastern Alabama in the USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026