HomeFish encyclopediaRay-finned fishesPerch-like fishPerchesWestern sand darter Western sand darter (Ammocrypta clara) Scientific name: Ammocrypta clara Jordan & Meek, 1885 The Western sand darter (Ammocrypta clara) is a freshwater fish of the family Percidae. BiologyInhabits sandy runs of medium to large rivers and streams. Feeds on aquatic insects.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAmmocrypta claraFamilyPercidae (Perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.1Common length4.7EnvironmentFreshwater; demersalClimateSubtropicalDistributionNorth America: Mississippi River basin from Wisconsin and Minnesota south to Mississippi and Texas in the USA, in the Lake Michigan drainage in Wisconsin, and in the Sabine and Neches River drainages in Texas.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (tmax=3; Fec=324) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026