HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsWestern silvery minnow Western silvery minnow (Hybognathus argyritis) Scientific name: Hybognathus argyritis Girard, 1856 The Western silvery minnow (Hybognathus argyritis) is a freshwater fish of the family Cyprinidae. BiologyAdults inhabit sluggish pools and backwaters, usually over mud or sand, of small to large rivers. Oviparous, open substratum spawners.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHybognathus argyritisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Common length10.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Missouri River basin in Alberta in Canada and Montana to Illinois, USA, south in Mississippi River basin to southern Illinois; South Saskatchewan River in extreme southern Alberta, Canada, and Souris River (Hudson Bay basin) in extreme eastern Manitoba, Canada.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