296 U. S. NATIONAL MUSEUM BULLETIN 205 



in New Mexico across Mogollon Mountain region west of Rio Grande to Sacra- 

 mento, San Andreas, and Manzano Mountains, and northward along eastern base 

 of Sangre de Cristos and into the Raton Range (V. Bailey, North Amer. Fauna 

 No. 53 (December 1931), p. 231, Mar. 1, 1932). Recorded also from Fisher's 

 Peak in southwestern Las Animas County, Colo. (Warren, The mammals of Colo- 

 rado, ... p. 160, 1942). 



Thomomys bottae boreorarius Durham 



1952. Thomomys bottae boreorarius Durham, Journ. Mamm., vol. 33, No. 4, 

 p. 498, Nov. 19, 1952. 



Type Locality. — Swamp Point, 18% miles northwestward of Bright Angel 

 Point, north rim of Grand Canyon, Coconino County, Ariz. Altitude, 7,522 feet. 

 Range. — Known from type locality and vicinity which includes Muav Saddle 

 (6,717 feet), % rnile to the westward, and thence northward % mile down 

 Saddle Canyon as far as Powell Spring (6,209 feet) ; also the northeast end of 

 Powell Plateau (7,650 feet), which point is about 1 mile west of type locality. 



Thomomys bottae absonus Goldmanf * 



1931. Thomomys perpallidus absonus Goldman, Journ. Washington Acad. Sci., 

 vol. 21, No. 17, p. 425, Oct. 19, 1931. 



1934. T[homoys] b[ottae] absonus Hall and Davis, Proc. Biol. Soc. Washing- 

 ton, vol. 47, p. 52, Feb. 9, 1934. 



Type Locality. — Jacob's Pools, House Rock Valley, Coconino County, Ariz. 

 Altitude, 4,000 feet. Range. — In Arizona, probably restricted to House Rock 

 Valley, on north side of Marble Canyon of Colorado River (Goldman, North 

 Amer. Fauna No. 59, p. 10, June 12, 1947) ; and in southern Utah in Kane and 

 Garfield Counties, in drainages of Kanab Creek, Johnson Creek, Paria River, and 

 Escalante River (Durrant, Univ. Kansas Publ. Mus. Nat. Hist., vol. 1, No. 1, p. 71, 

 Aug. 15, 1946). Zonal range, Upper Sonoran. 



Thomomys bottae alexandrae Goldmanf* 



1933. Thomomys alexandrae Goldman, Journ. Washington Acad. Sci., vol. 23, 

 No. 10, p. 464, Oct. 15, 1933. 



1935. Thomomys bottae alexandrae Benson, Univ. California Publ. Zool., vol. 

 40, No. 14, p. 449, Dec. 31, 1935.— Durrant, Univ. Kansas Publ. Mus. Nat. 

 Hist., vol. 1, No. 1, p. 72, Aug. 15, 1946. 



Type Locality. — Plain 5 miles southeast of Rainbow Lodge, near Navajo Moun- 

 tain, Coconino County, Ariz. Altitude, 6,200 feet. Range. — Sagebrush-cov- 

 ered mesa south of Navajo Mountain, Coconino County, north to Soldier Spring 

 (altitude, 8,600 feet) on Navajo Mountain in extreme southwestern San Juan 

 County, Utah; in Arizona apparently isolated in a somewhat triangular area be- 

 tween precipitous canyon walls of Navajo and Pinto Creeks, which diverge to 

 Colorado River (Goldman, North Amer. Fauna No. 59, p. 28, June 12, 1947) ; 

 in Utah probably limited to area enclosed on north by Colorado and San Juan 

 Rivers, on the east and west by Navajo and Piute Canyons, respectively (Durrant, 

 loc. cit.). 



Thomomys bottae muralis Goldmanf* 



1936. Thomomys muralis Goldman, Journ. Washington Acad. Sci., vol. 26, No. 

 3, p. 112, Mar. 15, 1936. 



