HomeFish encyclopediaRay-finned fishesSilversidesNeotropical silversidesBlackfin silverside Blackfin silverside (Atherinella crystallina) Scientific name: Atherinella crystallina Jordan & Culver, 1895 The Blackfin silverside (Atherinella crystallina) is a freshwater fish of the family Atherinopsidae. Native range: North America, Mexico, from R?o Sinaloa to R?o Verde, Jalisco. Species factsScientific nameAtherinella crystallinaFamilyAtherinopsidae (Neotropical silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; benthopelagicClimateTropicalDistributionNorth America: Mexico, from R?o Sinaloa to R?o Verde, Jalisco.Conservation status (IUCN)Near Threatened (NT)Threat 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