402 BULLETIN 17 8, UNITED STATES NATIONAL MUSEUM 



96458. Skin and skull. Adult male. Sierra de Choix, altitude 

 5,000 feet, about 20 miles northeast of Choix, Sinaloa, Mexico. 

 October 19, 1898. Collected by E. A. Goldman. Original 

 number 13137. 



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



f Thomomys iimbrinus extimus Nelson and Goldman. 

 Jonrn. Mannn. 15 : 119, May 15, 1934. 

 88131. Skin and skull. Adult male. Colomo, altitude 600 feet, 

 southern Nayarit, Mexico. April 5, 1897 (not 1898 as recorded 

 in original description). Collected by E. W. Nelson and E. A. 

 Goldman. Original number 10878. 



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



fThomomys umbrinus madrensis Nelson and Goldman. 

 Journ. Mamm. 15 : 115, May 15, 1934. 

 98203. Skin and skull. Adult male. Pilares Canyon, altitude 

 (>,400 feet, 10 miles northeast of Colonia Garcia, and about 25 

 miles southwest of Casas Grandes, Chihuahua, Mexico. June 

 23, 1899. Collected by E. W. Nelson and E. A. Goldman. 

 Original number 13810. 

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



t Thomomys umbrinus martinensis Nelson and Goldman. 



Journ. Mamm. 15 : 108, May 15, 1934. 

 55622. Skin and skull. Adult female. San Martin Texmelucan, 

 Puebla, Mexico. August 13, 1893. Collected by E. W. Nelson 

 and E. A. Goldman. Original number 5305. 

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



fThomomys umbrinus musculus Nelson and Goldman. 



Journ. Mamm. 15 : 119, May 15, 1934. 

 90818. Skin and skull. Adult male. Pedro Pablo, altitude 3,500 

 feet, about 22 miles east of Acaponeta, Sierra de Teponahuaxtla, 

 Nayarit, Mexico. August 3, 1897. Collected by E. W. Nelson 

 and E. A. Goldman. Original number 11440. 

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



fThomomys umbrinus potosinus Nelson and Goldman. 

 Journ. Mamm. 15: 111, May 15, 1934. 

 82057. Skin and skull. Adult male. La Tina j a, altitude 6,000 

 feet, about 20 miles northeast of San Luis Potosi, State of San 

 Luis Potosi, Mexico. .January 22, 1897. Collected by E. W. 

 Nelson and E. A. Goldman. Original number 10469. 

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



