18 



MAMMALS IN THEIR EELATIOX TO SPOTTED FEVER. 



GRAY MEADOAV MOUSE. 



{MicrotHs nanus cancscens.) 



This species of meadow mouse occurs in grassy depressions, on 

 benches, and in upland fields, as well as in marshes and meadow? 

 in the valley bottoms. A few were taken, but none were examined 



1. 2. 3. 



Fig. 9. — 1, Gray meadow mouse {Microtus nanus canescens) ; 2, common meadow mouse 

 {Microtus viodestus) ; 3, long-tailed meadow mouse {Microtus mordax). (About | 

 natural size.) 



for ticks. In habits Ihey dilTer very little from the darker colored 

 mod est us ^ with which they often occur. 



LONG-TAILED ^EEADOAV MOUSE. 



(Microtus mordax.) 



These mice occur principally in the mountain meadows and along 

 creeks down into the edges of the valley. They are usually not very 

 numerous or of much economic importance except as food for hawks, 

 owls, weasels, foxes, and wild cats. They feed mainly upon green 

 vegetation, and are more partial to water and wet ground 



[Cir. 82] 



