CATALOG OF TYPE SPECIMENS OF MAMMALS 277 



244108. Skill and skull. Adult female. Hualpai Peak, Hualpai 

 Mountains, altitude 8,400 feet, Mohave County, Ariz. October 1, 

 1923. Collected by E. A. Goldman. Original number 23554. 

 Well-made skin in good coudition ; skull Grade B. 



fMicrotus mexicanus madrensis (loklman. 

 Journ. Mamm. 19 : 493, Nov. 14, 1938. 

 98172. Skin and skull. Adult male. Gavilan River, 5 miles west of 

 Colonia Garcia, about 60 miles southwest of Casas Grandes, alti- 

 tude 6,700 feet. Chihuahua, Mexico. July 2, 1899. Collected by 

 E. W. Nelson and E. A, Golchnan. Original number 13870. 

 Well-made skin in good condition ; skull Grade A. 



fMicrotus mexicanus subsimus (Joldman. 



Journ. Mamm. 19: 494, Nov. 14, 1938. 

 116918. Skin and skull. Adult male. Sien-a Guadalupe, south- 

 eastern Coahuila, Mexico. May 3, 1902. Collected by E. W. 

 Nelson and E. A. Goldman. Original number 15195. 

 Well-made skin in good condition ; skull Grade A. 



fMicrotus miurus Osgood. 



North Amer. Fauna 21 : 64, Sept. 26, 1901. 

 107175. Skin and skull. Adult male. Head of Bear Creek, in moun- 

 tains near Hope, Turnagain Arm, Cook Inlet, Alaska. September 

 4, 1900. Collected by W. H. Osgood and E. Heller. Original 

 number 1349. 



Well-made skin in good condition ; skull Grade A. 



fMicrotus miurus oreas Osgood. 



Proc. Biol. Soc. Washington 20 : 61, Apr. 18, 1907. 

 148596. Skin and skull. Adult male. Head of Toklat River, 

 Alaskan Range, Alaska. August 8, 1 906. Collected by C. Sheldon. 

 Original number 47 (6289-X). 



Well-made skin in good coudition ; skull Grade B. 



*Arvicola modesta Baird. 



Mammals of North America, p. 535, 1857. 

 —Microtus pcnnsi/lvavicus modestus (Baird). See Bailey, North Amer. Fauna 

 17 : 20, June 6, 1900. 



_^. Skin and skull. Immature. Sawatch Pass [ = Saguache Pass, 

 1717 * ' 



Cochetopa Hills], Saguache County, Colo. August-September, 



1853. Collected by Kreutzfeldt. Original number 16. 



Skin very fragmentary and dilapidated. Right forefoot still attached. 

 Two other feet loose and also tip of tail. Skull Grade C. 



Of Baird's two specimens, both designated by numbers, the above is the 

 only one that he refers with certainty to modesta. 



