HomeFish encyclopediaRay-finned fishesPerch-like fishPerchesGreenthroat darter Greenthroat darter (Etheostoma lepidum) Scientific name: Etheostoma lepidum Baird & Girard, 1853 The Greenthroat darter (Etheostoma lepidum) is a freshwater fish of the family Percidae. Native range: North America, found in Colorado, Guadalupe and Nueces River drainages in Texas, USA; and in Pecos River system in New Mexico, USA. BiologyAdults occur in gravel and rubble riffles, especially spring-fed and vegetated riffles, of headwaters, creeks and small rivers. Eggs are found attached to the substrate unguarded.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEtheostoma lepidumFamilyPercidae (Perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.6Common length3.2EnvironmentFreshwater; benthopelagicClimateTropicalDistributionNorth America: found in Colorado, Guadalupe and Nueces River drainages in Texas, USA; and in Pecos River system in New Mexico, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Fec=15-200) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026