HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsFlagfin shiner Flagfin shiner (Pteronotropis signipinnis) Scientific name: Pteronotropis signipinnis Bailey & Suttkus, 1952 The Flagfin shiner (Pteronotropis signipinnis) is a freshwater fish of the family Cyprinidae. Native range: North America, Coastal Plain streams from Apalachicola River drainage in Florida to Pearl River drainage in Mississippi and Louisiana, USA. BiologyOccurs usually over sand and near vegetation in flowing pools and runs of headwaters, creeks and small rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePteronotropis signipinnisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length7.0EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionNorth America: Coastal Plain streams from Apalachicola River drainage in Florida to Pearl River drainage in Mississippi and Louisiana, 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