HomeFish encyclopediaRay-finned fishesCarpsSuckersSharpfin chubsucker Sharpfin chubsucker (Erimyzon tenuis) Scientific name: Erimyzon tenuis Agassiz, 1855 The Sharpfin chubsucker (Erimyzon tenuis) is a freshwater fish of the family Catostomidae. Native range: North America, Gulf Slope from Yellow River system in Alabama and Florida, USA to Amite River system in Mississippi and Louisiana, USA. BiologyOccurs in pools and backwaters of creeks and small rivers over sand or silt. Often found near vegetation.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameErimyzon tenuisFamilyCatostomidae (Suckers)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length33.0Common length21.5EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Gulf Slope from Yellow River system in Alabama and Florida, USA to Amite River system in Mississippi and Louisiana, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026