UNIVERSITY OF CALIFORNIA PUBLICATIONS 
IN 
ZOOLOGY 
Vol. 17, No. 18, pp. 517-536, 6 figures in text June 22, 1918 
EXCAVATIONS OF BURROWS OF THE RODENT 
APLODONTIA, WITH OBSERVATIONS ON 
THE HABITS OF THE ANIMAL 
BY 
CHARLES LEWIS CAMP 
(Contribution from the Museum of Vertebrate Zoology of the University of California) 
CONTENTS 
PAGE 
TETRA NEYO A a ae eS ee A Ee ee 517 
Historical 
VIG) OP IE) 9 sneer Eek pee a 
Burrows .. 
LBD oese See et aeons eee gt RSE Oa eT eee ees 
TRS bib vey LOE EY aoe ce ee ee Sac a BRP eee 528 
Hibernation 
Sc atol oprymsevmuntert1 OVI p aN A Care BNy BO Oye eae m eas soa aa tee ence ane eee cena ena 531 
PSI STINS (2) OSLO OR OTE cae eer cr Oo RO occa eee 532 
Breeding habits .... 
AVC tec ce eae et ss Dig Lac setae nae econ wn neces Noe vunan pictse beta dbdecdecediaence eee tees 538% 
NB TT @ VENT GS apres aoe an cts «2s oc ce reece tevez az we ccucaecanevetavet oe sve aes egsbe tes aera ateneere Bee ote 533 
Economie importance and trapping .. 
MebeTATUT OM CUGG Cees stern nee sneer cen cree en: 
INTRODUCTION 
While engaged in field work for the University of California 
Museum of Vertebrate Zoology the writer has had the opportunity 
of observing personally in the wild three of the California races of 
Aplodontia or Mountain Beaver. The notes of other members of 
Museum field parties have been available also in the preparation of 
this report, in fact all material, from whatever source, in the files 
of the Museum of Vertebrate Zoology. Im addition, Mr. Alfred C. 
