UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 12, No. 13, pp. 335-398, plates 15-18 Issued January 27, 1916 



REPORT UPON MAMMALS AND BIRDS FOUND 



IN PORTIONS OF TRINITY, SISKIYOU AND 



SHASTA COUNTIES, CALIFORNIA, WITH 



DESCRIPTION OF A NEW DIPODOMVS 



LOUISE KELLOGG 



(Contribution from the Museum of Vertebrate Zoology of the University of California) 



CONTEXTS 



FEB25 1916 



PAGE 



Introduction 335 



Itinerary 336 



Schedule 336 



Description of route 338 



Check-list of the mammals 350 



General accounts of the mammals 351 



List of the birds with annotations 379 



Literature cited 389 



INTRODUCTION 



The Trinity, Salmon and Scott mountains form a chain lying in 

 an intermediate position between the Sierra Nevada and the Coast 

 Ranges, on the east and west, respectively, and merging through 

 the Siskiyou Mountains at the north into the Cascade Range. The 

 river systems which drain this chain of mountains occupy valleys 

 somewhat similar to those which furrow the western flank of the 

 Sierra Nevada. The streams all flow ultimately in a westerly 

 direction and finally meet the Klamath River, which forms their 

 common outlet to the seacoast. There is thus offered an interest- 

 ing problem in animal distribution; for the faunas of the Sierra 

 Nevada to the east, the Coast belt to the west, and the Cascades 



