The Baculum in the Chipmunks
of Western North America

BY
JOHN A. WHITE

University of Kansas Publications
Museum of Natural History

Volume 5, No. 35, pp. 611-631, 19 figures in text
December 1, 1953

University of Kansas
LAWRENCE
1953

University of Kansas Publications, Museum of Natural History

Editors: E. Raymond Hall, Chairman, A. Byron Leonard,
and Robert W. Wilson

Volume 5, No. 35, pp. 611-631, 19 figures in text
December 1, 1953

University of Kansas
Lawrence, Kansas

PRINTED BY
FERD VOILAND, JR., STATE PRINTER
TOPEKA, KANSAS
1953

24-8968

The Baculum in the Chipmunks
of Western North America

By
JOHN A. WHITE

Contents

•  PAGE
• Introduction 613
• Methods, Materials, and Acknowledgments 614
• Variation 614
• Key to the Bacula of the Species of Eutamias of Western North America 615
• Accounts by Species 616
• • Eutamias alpinus 616
  • E. minimus 617
  • E. townsendii 618
  • E. sonomae 619
  • E. amoenus 619
  • E. dorsalis 620
  • E. merriami 621
  • E. quadrivittatus 621
  • E. ruficaudus 622
  • E. cinereicollis 624
  • E. quadrimaculatus 624
  • E. speciosus 625
  • E. panamintinus