HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesPoeciliidsOlmec priapella Olmec priapella (Priapella olmecae) Scientific name: Priapella olmecae Meyer & Espinosa P?rez, 1990 The Olmec priapella (Priapella olmecae) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 21–27°C (70–81°F). Native range: Central America, Papaloapan ecoregion in Mexico. Olmec priapella care at a glanceTemperature21–27°C (70–81°F) BiologyInhabits slow to fast-moving water. Found along with Xiphophorus hellerii and Poecilia mexicana.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePriapella olmecaeFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length5.0Depth range0–1 m (0–3 ft)EnvironmentFreshwater; pelagic; depth range 0 - 1 mClimateTropicalDistributionCentral America: Papaloapan ecoregion in Mexico.Conservation status (IUCN)Not EvaluatedThreat 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