Cyprinodon longidorsalis Lozano-Vilano & Contreras-Balderas, 1993

La Palma pupfish



Taxonomy & Nomenclature



Conservation Status

Extinct in the wild

Last record: 1994

IUCN RedList status: Extinct in the Wild



Charco La Palma spring, Neuvo Leon, Mexico


Biology & Ecology










Original scientific description:

Lozano-Vilano, M. d. L. and Conteras-Balderas, Salvador. (1993). Four new species of Cyprinodon from southern Nuevo León, Mexico, with a key to the C. eximius complex (Teleostei: Cyprinodontidae). Ichthyol. Explor. Freshwaters. 4(4): 295-308.

Other references:

Baumsteiger, J., and Moyle, P.B. 2017. Assessing extinction. BioScience 67(4): 357-366.

Burkhead, Noel M. (2012). Extinction Rates in North American Freshwater Fishes, 1900–2010. BioScience 62(9): 798-808.

Contreras-Balderas, S. & Almada-Villela, P. (1996). Cyprinodon longidorsalis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. ( Downloaded on 22 July 2012.

Dalrymple, S. E., Abeli, T., Ewen, J. G., Gilbert, T. C., Hogg, C. J., Lloyd, N. A., Moehrenschlager, A., Rodríguez, J. P. and Smith, D. (2023). Addressing Threats and Ecosystem Intactness to Enable Action for Extinct in the Wild Species. Diversity 15: 268.

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.

Koldewey, H., Cliffe, A., and Zimmerman, B. 2013. Breeding programme priorities and management techniques for native and exotic freshwater fishes in Europe. International Zoo Yearbook 47: 93-101.

Lozano-Vilano, M.L. and Maza-Benignos, M. 2017. Diversity and status of Mexican killifishes. Journal of Fish Biology 90(1): 3-38. [Abstract]

Maas, P.H.J. (2011). Extinct in the Wild. In: TSEW (2012). The Sixth Extinction Website. ( Downloaded on 22 July 2012.

Miller, R.R., Minckley, W.L. and Norris, S.M. 2005 . Freshwater Fishes of México. University of Chicago Press, Chicago.

Smith, Donal et al. (2023). Extinct in the wild: The precarious state of Earth’s most threatened group of species. Science 379(6634): eadd2889.

Valdes Gonzales, A. (2019). Cyprinodon longidorsalis. The IUCN Red List of Threatened Species 2019: e.T6174A3107266. Accessed on 11 June 2022.


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