The Recently Extinct Plants and Animals Database

Stypodon signifer Garman, 1881:90

Sumptooth minnow



Taxonomy & Nomenclature



Conservation Status

Last record: 1903 (Miller, 1961:380)

IUCN RedList status: Extinct



springs in the Chihuahua desert, near Parras, Coahuila, Mexico


Biology & Ecology




Known only from 6 specimens.

The two type specimens were collected in 1880 (both are syntypes; including MCZ 24896). They both lack pharyngeals.

A second collection (USNM 50971, n=4) was made in 1903 by George Hochderfer (Miller, 1961:380).

See here:






Original scientific description:

Garman, Samuel. (1881). New and little-known Reptiles and Fishes in the Museum Collections. Bulletin of the Museum of Comparative Zoology at Harvard College 8(3): 85-93.


Other references:

Almada-Villela, P. C. (1990). Status of threatened Mexican fishes. J. Fish Biol. 37(Suppl. A):197-199.

Contreras, Balderas, S. (1969). Perspectives de la ictiofauna en las zonas aridas del norte de México, pp. 293-304. In: Mem. Simp. Intern. sobre el aumento de la próduccion de alimentos en zonas aridas. ICASALS Pub. 3.

Day, David. (1981). The Doomsday Book of Animals: A Natural History of Vanished Species. New York, N.Y.: The Viking Press.

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.

Meek, Seth Eugene. (1904). The fresh-water fishes of Mexico north of the isthmus of Tehuantepec. Chicago: Columbian Field Museum. lxiii + 252 pp. [17.6 MB]

Miller, Robert Rush. (1961). Man and the changing fish fauna of the American southwest. Papers of the Michigan Academy of Science, Arts, and Letters 46: 365-404.

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.

World Conservation Monitoring Centre. (1996). Stypodon signifer. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. ( Downloaded on 09 July 2011.


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