HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsTaillight shiner Taillight shiner (Notropis maculatus) Scientific name: Notropis maculatus Hay, 1881 The Taillight shiner (Notropis maculatus) is a freshwater fish of the family Cyprinidae. BiologyUsually occurs near vegetation in swamps, ponds, backwaters, pools of small to large rivers and oxbow lakes. Feeds on microcrustaceans (chydorid cladocerans, cyclopoid copepods, ostracods), rotifers, unicellular algae (desmids and diatoms), and small dipteran larvae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNotropis maculatusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length7.6Common length5.2EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionNorth America: in Atlantic, Gulf, and Mississippi River basins from Cape Fear River in North Carolina, USA to Sabine River in Texas, USA; north in Former Mississippi Embayment to southern Illinois, USA; throughout Florida, USA except in extreme southern tip.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (tmax=1) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026