Mar. 1898. NORTH AMKRICAN MAMMALS ELLIOT. 195 



slight indications in spots of the buff hair appearing, none how- 

 ever on the thighs, and the entire under parts dark gray, with a 

 tinge of buff showing on the throat. 



If the changes of pelage which the S. hudsonicus group undergo 

 were unknown, it might readily be supposed that these specimens 

 represented two separate races, as with certain ones of each 

 style, the months in which they were taken are the same. 



4. Tamias townsendii hindsii. 



Tamias townsendii hindsii. J. E. Gray, Ann. Mag. Nat. 

 Hist., vol. x, 1842, p. 264. 



A single specimen from the Snow Mountains, Calusa Co. 



This example, which is a male, was procured on the 2yth of 

 September, and is in process of change from the post-nuptial 

 pelage to that of winter. The upper part of the back, the 

 shoulders and flanks are reddish buff with the stripes sharply 

 defined, while the remainder is dark gray with reddish brown 

 stripes. 



I believe that the locality in which this specimen was taken is 

 the farthest east of any yet recorded for the species. 



5. Tamias senex. 



Tamias senex. Allen, Bull. Am. Mus. Nat. Hist., vol. iii, 

 1890-91, p. 83. 



Number of specimens, 43, from the following localities: 3, 

 Bloods, Calaveras Co.; 8, Hermit Valley, Calaveras Co.; 13, 

 Pyramid Peak, Eldorado Co.; 6, Woodford, Alpine Co.; i, Blue 

 Lake, Alpine Co.; 12, Silver Lake, Amidor Co. 



Most of the examples are in the pale gray pelage usually seen, 

 but some taken in July and August are in the post-nuptial dress, 

 which exhibits a rich orange color on the back and sides, with 

 the stripes both black and white, sharply defined. The light 

 colored stripes vary from a pale gray to ivory white. 



6. Tamias pricei. 



Tamias pricei. Allen., Bull. Am. Mus. Nat. Hist., vol. vii., 



l8 95> P- 333- 



Twenty specimens obtained at Portola, San Mateo Co., taken 

 from December to April. 



All these examples are typical, and exhibit no perceptible 

 variation of the color of the pelage from December to April. It 



