March, 1904. Mammals of Southern California — Elliot. 301 



Thomomys alpinus. 



Thomomys alpinus Merr., Proc. Biol. Soc. Wash., 1897, p. 216. 

 Elliot, Syn. N. Am. Mamm., rqoT, p. 229. 



17 Examples, Mount Whitney region: 10 Big Cottonwood 

 Meadows (topotypes), 3 Ramshaw Meadows, 3 Hot Springs, 

 Long Canon, 1 Whitney Meadows. 



Misled by his specimens, Dr. Merriam says this species is 

 "rather small," and gives a total length of 228 millimeters, 

 when in fact it is a large species, attaining a total length of 27c 

 millimeters, and is exceeded in size by only a few of the known 

 species of the genus. "In the Boreal Zone of the Sierras it 

 occurs abundantly in the heavy black loam of the wet meadows, 

 and was taken from 8,000 feet elevation to the meadows above 

 timberdine in the Alpine Zone. At timberdine the mounds 

 were usually placed on dry gravelly hillsides." 



Thomomys scapterus. 



Thomomys scapterus Elliot, Pub. Field Columb. Mus., 111, 

 1903, p. 248. 



5 Specimens: 3 Hannopee Canon (type and topotypes), 2 Coal 

 Kilns, Panamint Mountains. 



In the description of this form I gave the geographical dis- 

 tribution as the Panamint, Coso, and Inyo Mountains. Having 

 examined and compared the examples since the publication of 

 my paper, 1 am satisfied that the Coso and Inyo Mountain 

 specimens should be referred to T. a. per pes, thus restricting 

 T. scapterus to the Panamints. 



Thomomys aureus perpes. 



Thomomys a. perpes Merr., Proc. Biol. Soc. Wash., iyoi , p. 1 1 1. 



17 Examples: 1 Coso Mountains, 1 Summit of the Inyo 

 Mountains east of Lone Pine 15 Lone Pine (topotvpes). 



This rather pale gopher was "abundant along the streams of 

 the east slope of the Sierras in Owens Valley. About the shores 

 of Owens Lake it meets T . operarius, and somewhere in the 

 Transition Zone T. alpinus of the high Sierras." No specimens, 

 however, were taken either in the Mount Whitney Region or in 

 the Panamint Mountains, and it is reasonable to suppose it is 

 not to be found to the eastward of the Coso'and Invo Mountains. 



