HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsBullhead minnow Bullhead minnow (Pimephales vigilax) Scientific name: Pimephales vigilax Baird & Girard, 1853 The Bullhead minnow (Pimephales vigilax) is a freshwater fish of the family Cyprinidae. BiologyOccurs in quiet pools and runs over sand, silt, or gravel, in small to large rivers. Most common in medium-sized rivers. Feeds on insect immatures.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePimephales vigilaxFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length9.2Common length5.7EnvironmentFreshwater; demersalClimateSubtropicalDistributionNorth America: Mississippi River basin from western Pennsylvania to Minnesota in USA, and south to Gulf; Gulf Slope drainages from Mobile Bay in Georgia and Alabama to Rio Grande in Texas and New Mexico, USA and Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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