Mar. 1898. NORTH AMERICAN MAMMALS ELLIOT. igg 



12. Spermophilus beecheyi fisheri. 



Spermophilus beecheyi fisheri. Merr. Proc. Biol. Soc. Wash., 

 vol. viii, 1893, p. 133. 



Twenty specimens, Anderson Ranch, Douglas Co., Nevada, 16; 

 Mt. Siegel, Douglas Co., Nevada, 4. 



These are all of the pale colored variety described by Dr. Mer- 

 riam (1. c.), with much white on the head and shoulders. The 

 Mt. Siegel examples, while resembling those from Anderson's 

 Ranch, are yet considerably paler, but as they were taken a 

 month earlier, in July, this and the different locality may account 

 for the change in their appearance. 



13. Spermophilus beldingi. 



Spermophilus beldingi. Merr. N. Y. Acad. Nat. Scien., vol. iv, 

 1888, p. 317. 



Specimens, 41, from the following localities: Hermit Valley, 

 Calaveras Co., 6; Silver Lake, Amidor Co., 18; Woodford, Al- 

 pine Co., 2; Pyramid Peak, Eldorado Co., 15. 



There is very little variation in the color of this species, which 

 appears to be pretty constant, the changes mainly consisting in 

 the greater depths of the hues, some being a very rich brownish 

 red above. 



SUB-FAMILY ARCTOMYIN^. 



14. Arctomys flaviventer. 



Arctomys flaviventer. Aud. & Bach., Jour. Acad. Nat. Scien., 

 Phila. , 1842, vol. viii, p. 309. 



Ten specimens, mostly young, as follows : Echo, Eldorado 

 Co., i ad., i juv. ; Pyramid Peak, Eldorado Co., 5 juv. ; Silver 

 Lake, Amidor Co., i ad.; Winters Mine, Douglas Co., Nevada, 

 i; Mt. Siegel, Douglas County, Nevada, i. 



The specimen from Winters Mine has shed all its hair, and 

 exhibits only the under fur, and of course appears very different 

 from the other examples. They were all taken during July. 



FAMILY MURID.E. 

 SUBFAMILY CRICETIN^. 



15. Reithrodontomys longicaudus. 



Reithrodon longicaudus. Baird U. S. P. R. R., Exp. & Surv., 

 vol. vi, 1857, p. 451. 



Forty-one Specimens from Portola, San Mateo Co. 



