HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsEastern silvery minnow Eastern silvery minnow (Hybognathus regius) Scientific name: Hybognathus regius Girard, 1856 The Eastern silvery minnow (Hybognathus regius) is a freshwater fish of the family Cyprinidae. BiologyAdults occur in pools and backwaters of low-gradient creeks and small to large rivers. Oviparous, open substratum spawners.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHybognathus regiusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Common length8.8EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: Atlantic Slope from St. Lawrence River drainage in Quebec, Canada to Altamaha River drainage in Georgia, USA; Lake Ontario drainage in Ontario in Canada and New York in USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=2) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026