Gambusia amistadensis Peden, 1973

Amistad gambusia



Taxonomy & Nomenclature



Conservation Status

Extinct (Burkhead, 2012)

Last record: before 30 November 1974 (Miller et al. 1989:33)

IUCN RedList status: Extinct


Estimated date of extinction: 1973 (Burkhead, 2012)



Goodenough Springs (and nearby waters), Val Verde County, Texas, USA


Biology & Ecology




USNM 205858.5065424 (62 fish)






Original scientific description:

Peden, Alex E. (1973). Virtual Extinction of Gambusia amistadensis n. sp., a Poeciliid Fish from Texas. Copeia 1973(2): 210-221. [Abstract]


Other references:

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

Hubbs, C. and Jensen, B. L. (1984). Extinction of Gambusia amistadensis, an endangered fish. Copeia 1984: 529-530.

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.

Lee, D.S., Gilbert, C.R., Hocutt, C.H., Jenkins, R.E., McAllister, D.E. and Stauffer, J.R., Jr. 1980. Atlas of North American freshwater fishes. North Carolina State Museum of Natural History, Raleigh, North Carolina.

Meffe, G.K. and Snelson, F.F., Jr. (eds). 1989. Ecology and evolution of livebearing fishes (Poeciliidae). pp. 453. Prentice Hall, Englewood Cliffs, New Jersey.

Miller, R. R., Williams, J. D. and Williams, J. E. (1989). Extinctions of North American fishes during the past century. Fisheries 14(6): 22-38.

Minckley, W.L., Meffe, G.K. and Soltz, D.L. 1991. Conservation and management of short-lived fishes: the cyprinodontoids. In: W.L. Minckley and J.E. Deacon (eds), Battle Against Extinction: Native Fish Management in the American West, pp. 247-282. University of Arizona Press, Tucson, Arizona.

NatureServe. (2013). Gambusia amistadensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 14 July 2013.

NatureServe. 2013. Gambusia amistadensis. The IUCN Red List of Threatened Species 2013: e.T8888A18229604. Accessed on 02 July 2022.

Nelson, J.S., Crossman, E.J., Espinosa-Perez, H., Findley, L.T., Gilbert, C.R., Lea, R.N. and Williams, J.D. 2004. Common and scientific names of fishes from the United States, Canada, and Mexico. American Fisheries Society, Bethesda, Maryland.

Page, L.M. and Burr, B.M. 1991. A field guide to freshwater fishes: North America north of Mexico. Houghton Mifflin Company, Boston, Massachusetts.

Page, L.M. and Burr, B.M. 2011. Peterson field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Harcourt, Boston, Massachusetts.

Rauchenberger, M. 1989. Systematics and biogeography of the genus Gambusia (Cyprinodontiformes: Poecilidae). American Museum Novitates 2951: 1-74.

Robins, C.R., Bailey, R.M., Bond, C.E., Brooker, J.R., Lachner, E.A., Lea, R.N. and Scott, W.B. 1991. Common and scientific names of fishes from the United States and Canada. American Fisheries Society.

U.S. Fish and Wildlife Service (USFWS). (1987). Removal of Gambusia amistadensis [sic], the Amistad gambusia, from the list of endangered and threatened wildlife. Federal Register 52: 46083-46087.


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