HomeFish encyclopediaRay-finned fishesPerch-like fishPerchesDuskytail darter Duskytail darter (Etheostoma percnurum) Scientific name: Etheostoma percnurum Jenkins, 1994 The Duskytail darter (Etheostoma percnurum) is a freshwater fish of the family Percidae. Native range: North America, Cumberland and Tennessee ecoregions, USA. Species factsScientific nameEtheostoma percnurumFamilyPercidae (Perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; benthopelagicClimateTropicalDistributionNorth America: Cumberland and Tennessee ecoregions, 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