Lessa & Langguth, 1983
Pearson's tuco-tuco (Ctenomys pearsoni) is a species of rodent in the family Ctenomyidae. It is endemic to Uruguay, where it is found at elevations below 200 m. This tuco-tuco constructs burrows with multiple openings (an average of 13) containing one to two nests of dried grass; it prefers areas of sandy soil but is somewhat adaptable. It is threatened by loss of habitat to development, agriculture and ranching. Multiple karyotypes have been reported, including 2n = 68-70, FN = 80-88, as well as 2n = 56, FN = 77-79, suggesting the taxon may represent several species. C. dorbignyi appears to be cytogenetically indistinguishable from the 2n = 70 form. The species is named after American zoologist Oliver Payne Pearson.
- Bidau, C., Lessa, E. & Ojeda, R. (2008). Ctenomys pearsoni. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 5 January 2009.
- Woods, C.A.; Kilpatrick, C.W. (2005). "Infraorder Hystricognathi". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 1538–1600. ISBN 978-0-8018-8221-0. OCLC 62265494.
- Lidicker, W. Z.; Patton, J. L. "In Memoriam: Oliver Payne Pearson". Online Biographies of UC Faculty and Administrators. Retrieved 2012-05-11. External link in
- Beolens, Bo; Watkins, Michael; Grayson, Michael (2009-09-28). The Eponym Dictionary of Mammals. The Johns Hopkins University Press. pp. 312–313. ISBN 978-0801893049. OCLC 270129903.
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