UNIVERSITY OF CALIFORNIA PUBLICATIONS 
IN 
ZOOLOGY 
Vol. 17, No. 16, pp. 435-504, plates 25-29, 16 text figures May 29, 1918 
REVISION OF THE RODENT GENUS 
APLODONTIA 
BY 
WALTER P. TAYLOR 
(Contribution from the Museum of Vertebrate Zoology of the University of California) 
CONTENTS 
PAGE 
Ne UIE ROY6 ELOISE Re Ee ea 435 
1. Prefatory remarks .. 435 
2. Material and acknowledgements so HIBY/ 
3. Methods of measurement . 438 
SMe Vise VOM TPAD LOM OTULIG) ox oreo oe eerecee eens eee eee . 439 
1. Age variation 439 
PR SO MUA OUITTCTONCOS | aercs cee eens sansa scan feceeewsarcwensiecscacasertds suevereese?screveresce 40 
3. Individual variation 441 
+. Molt and seasonal variation 445 
Si, GuexOpSe OLOGY ON ace cater ree eee ec eet cee o are a EO 445 
(CL Tabsysyitomeaye One TN Nj ol kay Moya ASS eee ce eae en . 447 
Tl. Gaerne) HOMES) cee eer eres eo RE 447 
Pea SS LICE TNE A revs AE At LS CU SSO WN ess ae ee renee an eee eee tee 
TD}, TSUPA RS; OIE a UNG P OTA TOT es oe see ee EE ne eee eee er ee 
E. Present systematic status of Aplodontia 
Tle, Mblanes sigemeawillies PAN oy Kaye (oars 0G eRe oc ee 4 
2s VIB ave Sera SS Za GYE NO HI OT, ee eccE e esc cereeCERES ° 452 
3. Variations in the generic name -_.. 52 
4. List of species and subspecies with type localities -......-.-.--.--.. 453 
Sis LNCS) OIE SOLEMN enceee ecco ere ee ce aE ea Sane encore 454 
EF. 
Literature cited, with titles of other works containing matter on Aplodontia 484 
A. INTRODUCTION 
1. Prerarory REMARKS 
Discovered by Lewis and Clark in the early years of the nineteenth 
century, the peculiar west American rodent genus Aplodontia has 
long attracted interest and attention. It is the sole living representa- 
tive of that primitive group of rodents, the Aplodontoidea (see 
Matthew, in Osborn, 1910, pp. 534, 535), from which all other mem- 
