RODENTIA: GEOMYIDAE 307 



Thomomys bottae toltecus J. A. Allen* 



1893. Thomomys toltecus J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 5, 



p. 52, Apr. 28, 1893. 

 1934. Thomomys bottae toltecus Nelson and Goldman, Journ. Mamm., vol. 15, 



No. 2, p. 121, May 15, 1934. 

 Type Locality. — Colonia Juarez, Chihuahua, Mexico. Altitude, 4,500 feet. 

 Range. — Plains and valleys of northwestern Chihuahua, and southwestern New 

 Mexico. 



Thomomys bottae divergens Nelson and Goldmanf* 



1934. Thomomys bottae divergens Nelson and Goldman, Journ. Mamm., vol. 

 15, No. 2, p. 122, May 15, 1934. 



Type Locality. — Four miles west of Huachinera, Rio Bavispe, northeastern Son- 

 ora, Mexico. Altitude, about 4,000 feet. Range. — Upper part of Bavispe River 

 Valley and along Aros River Valley into western Chihuahua. 



Thomomys bottae basilicae Benson and Tillotson* 



1939. Thomomys bottae occipitalis Benson and Tillotson, Proc. Biol. Soc. 

 Washington, vol. 52, p. 151, Oct. 11, 1939. (Not of Dice, Carnegie Inst. 

 Washington Publ. 349, p. 125, June 1925; fossil, Rancho La Brea, Los An- 

 geles County, Calif.) 



1940. Thomomys bottae basilicae Benson and Tillotson, Proc. Biol. Soc. Wash- 

 ington, vol. 53, p. 93, June 28, 1940. (Substitute for occipitalis Benson and 

 Tillotson.) 



Type Locality. La Mision, 2 miles west of Magdalena, Sonora, Mexico. 

 Range. — Known from type locality only. 



Thomomys bottae vanrossemi Huey 



1934. Thomomys bottae vanrossemi Huey, Trans. San Diego Soc. Nat. Hist., 

 vol. 8, No. 1, p. 1, Aug. 10, 1934. 



Type Locality. — Punta Penascosa [=Punta Peiiasca], Sonora, Mexico. 

 Range. — Known from type locality only. 



Thomomys bottae estanciae Benson and Tillotson 



1939. Thomomys bottae estanciae Benson and Tillotson, Proc. Biol. Soc. Wash- 

 ington, vol. 52, p. 152, Oct. 11, 1939. 



Type Locality. — La Estancia, 6 miles north of Nacori, Sonora, Mexico. 

 Range. — Known from type locality only. 



Thomomys bottae winthropi Nelson and Goldmanf* 



1934. Thomomys bottae winthropi Nelson and Goldman, Journ. Mamm., vol. 

 15, No. 2, p. 122, May 15, 1934. 



Type Locality. — Hermosillo, Sonora, Mexico. Range. — River valleys and 

 plains of central Sonora, north as far as Saric and south to Ortiz (Burt, Univ. 

 Michigan Mus. Zool. Misc. Publ. 39, p. 42, Feb. 15, 1938) . 



Thomomys bottae convergens Nelson and Goldmanf* 



1934. Thomomys bottae convergens Nelson and Goldman, Journ. Mamm., vol. 

 15, No. 2, p. 123, May 15, 1934. 



