March, 1904. Mammals of Southern California — Elliot. 299 



being apparent. On the summit of the Inyo Mountains down 

 to the limits of the limber pine, 8,000 feet, it occurred sparingly." 



M1CROTUS. 

 Microtus dutcheri. 



Microtus dutcheri Bailey, Proc. Biol. Soc. Wash., 1898, p. 85. 

 Elliot, Syn. N. Am. Mamm., 1901, p. 185. 



46 Specimens: 6 Big Cottonwood Meadows (topotypes), 

 3 Big Cottonwood Lakes, 17 Whitney Meadows, 15 Whitney 

 Creek, 5 Hot Springs. 



"In the broad zones of the Sierras this is a very common 

 mammal. It was found in every meadow, from those in the 

 upper part of the Transition Zone to the Alpine ones above 

 timber-line at 12,000 feet. The surface runways and tunnels 

 were usuallv constructed about the clumps of dwarf willows 

 growing in the meadows. In habits they were more diurnal 

 than nocturnal at high altitudes." This species is conspicuous 

 for its short tail, considering its rather large size, and the 

 uniformity of the coloring in a fairly large series, only occa- 

 sionally a reddish one being observed. 



Microtus californicus. 



Arvicola californicus Peale, U. S. Expl. Exp. Mamm., 1848, 

 p. 46. 



Microtus californicus Elliot, Syn. N. Am. Mamm., 1901, p. 186. 



21 Examples: 5 Fort Tejon, 11 Bailey's Ranch, near Fort 

 Tejon; 5 Oro Grande. 



"About the swamps near Fort Tejon and near the headwaters 

 of Piru Creek, Bailey's Ranch, the California meadow mouse was 

 abundant. The species also invades the desert, following the 

 vallev of the Mohave River as far as Oro Grande, or to the limit 

 of damp meadows." 



Microtus californicus vallicola. 



Microtus c. vallicola Bailey, Proc. Biol. Soc. Wash., 1898, 

 p. S9. Elliot, Syn. N. Am. Mamm., 1901, p. 186. 



24 Specimens from Lone Pine (topotypes). 



"In Owens Valley this species occurs abundantly along the 

 river and about the streams as high as the Transition Zone." 



Microtus mordax. 



Microtus mordax Merr., N. Am. Faun., No. 5, 1891, p. 61. 

 Elliot, Syn. N. Am. Mamm., 1901, p. 191. 

 1 Specimen Hot Springs, Mount Whitney, 



