HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsOuachita shiner Ouachita shiner (Lythrurus snelsoni) Scientific name: Lythrurus snelsoni Robison, 1985 The Ouachita shiner (Lythrurus snelsoni) is a freshwater fish of the family Cyprinidae. Native range: North America, found above Fall Line in the Little River system in Arizona and Oklahoma (the Ouachita Mountains), USA. BiologyFound in rocky pools of small to medium rivers. Often near vegetation. Oviparous, probably open substratum spawners like congeners.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLythrurus snelsoniFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length5.3EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: found above Fall Line in the Little River system in Arizona and Oklahoma (the Ouachita Mountains), USA.Conservation status (IUCN)Vulnerable (VU) (D2)Threat 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