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HOME --> CLASS MAMMALIA
--> ORDER RODENTIA
--> SUBORDER CASTORIMORPHA
--> FAMILY Geomyidae
--> GENUS Thomomys
--> SUBGENUS Megascapheus
SPECIES Thomomys (Megascapheus) umbrinus
| Author: | Richardson, 1829. | | Citation: | Quadrupeds, in Fauna Boreali-Americana, 1: 202. | | Common Name: | Southern Pocket Gopher. | | Type Locality: | Originally given as Cadadaguios, SW Louisiana, but restricted to Mexico, Veracruz (probably Puebla), vicinity of Boca del Monte, by Bailey (1906). | | Distribution: | SC Arizona and SW New Mexico (USA) south to Puebla and Veracruz (Mexico). | | Status: | IUCN – Lowered Risk (nt) as T. u. emotus, otherwise Lower Risk (lc). | | Comments: | Subgenus Megascapheus. Hybridization with bottae reported in Patagonia Mtns of S Arizona by Patton and Dingman (1968), Patton (1973), and Hoffmeister (1969, 1986). Considered a species separate from bottae by these authors and by Anderson (1966, 1972). Hall (1981:469) included baileyi, bottae, and townsendii in this species based on his view of the hybridization data in Hoffmeister (1969), Patton (1973), and Thaeler (1968b); he reported intergradation between umbrinus and bottae in Nuevo Leon (Mexico), which has not been verified by genetic analyses. Hafner et al. (1987) examined phylogenetic relationships among geographic units of umbrinus. Revised, in part, by Nelson and Goldman (1934b), Anderson (1972; for Chihuahua), and Castro-Campillo and Ramírez-Pulido (2000; for C Mexico). |
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