The Recently Extinct Plants and Animals Database

Megupsilon aporus Miller & Walters, 1972

Catarina pupfish



Taxonomy & Nomenclature



Conservation Status

Last record: 2014 (extinct)

IUCN RedList status: Extinct in the Wild



El Potosi, Nuevo Leon, Mexico


Biology & Ecology










Original scientific description:

Miller, R. R. and Walters, V. (1972). A new genus of cyprinodontid fish from Nuevo Leon, Mexico. Contributions in Science, Natural History Museum of Los Angeles County 233: 1-13.


Other references:

Contreras-Balderas, S. & Almada-Villela, P. (1996). Megupsilon aporus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. ( Downloaded on 21 July 2012.

Contreras-Balderas, S., & Lozano-Vilano, M. D. L. (1996). Extinction of most Sandia and Potosi valleys(Nuevo Leon, Mexico) endemic pupfishes, crayfishes and snails. Ichthyological exploration of freshwaters. Munchen 7(1): 33-40.

González, Arcadio Valdés et al. (2018). The extinction of the Catarina pupfish Megupsilon aporus and the implications for the conservation of freshwater fish in Mexico. Oryx. doi: [Abstract]

Haas, R. (1979). Intergeneric hybridization in a sympatric pair of Mexican cyprinodontid fishes. Copeia 1979: 149-152. [Abstract]

Jelks, Howard L., Walsh, Stephen J., Burkhead, Noel M., Contreras-Balderas, Salvador, Díaz-Pardo, Edmundo, Hendrickson, Dean A., Lyons, J., Mandrak, Nicholas E., McCormick, Frank, Nelson, Joseph F., Platania, Steven P., Porter, Brady A., Renaud, Claude B., Schmitter-Soto, Juan Jacabo, Taylor, Eric B. and Warren, Melvin L. Jr. (2008). Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33(8): 372-407.

Liu, Robert K. and Echelle, Anthony A. (2013). Behavior of the Catarina Pupfish (Cyprinodontidae: Megupsilon aporus), a Severely Imperiled Species. The Southwestern Naturalist 58(1): 1-7. [Abstract]

Lozano-Vilano, M. L. and Maza-Benignos, M. De La. (2016). Diversity and status of Mexican killifishes. Journal of Fish Biology. DOI: 10.1111/jfb.13186 [Abstract]


<< Back to the Neopterygii (New-Finned Fishes) database