HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesPupfishesTecopa pupfish Tecopa pupfish (Cyprinodon nevadensis calidae) Scientific name: Cyprinodon nevadensis calidae Miller, 1948 The Tecopa pupfish (Cyprinodon nevadensis calidae) is a freshwater fish of the family Cyprinodontidae. Native range: Central America, North and South Tecopa Hot Springs in California, USA. Species factsScientific nameCyprinodon nevadensis calidaeFamilyCyprinodontidae (Pupfishes)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater; benthopelagic; non-migratoryClimateSubtropicalDistributionCentral America: North and South Tecopa Hot Springs in California, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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