HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsGravel chub Gravel chub (Erimystax x-punctatus) Scientific name: Erimystax x-punctatus Hubbs & Crowe, 1956 The Gravel chub (Erimystax x-punctatus) is a freshwater fish of the family Cyprinidae. BiologyInhabits gravel riffles and runs of creeks and small to large rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameErimystax x-punctatusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length11.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Thames River system in southern Ontario, Canada; Ohio River basin from New York and Pennsylvania to Illinois, USA; Mississippi River basin from southern Wisconsin and southern Minnesota south to Ouachita River drainage in Arkansas and west to eastern Kansas and Oklahoma, USA.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