Genera and Subgenera of Chipmunks

printed by
ferd voiland, jr., state printer
topeka, kansas
1953

By
JOHN A. WHITE

Contents

ILLUSTRATIONS
	page
Introduction	[546]
Historical	[546]
Methods, Materials, and Acknowledgments	[547]
Evaluation of Characters	[548]
Characters in which the Subgenera Eutamias
and Neotamias Agree, but Differ from the
Genus Tamias	[548]
Structure of the Malleus	[548]
Structure of the Baculum	[549]
Structure of the Hyoid Apparatus	[552]
Presence or Absence of P3	[553]
Length of Tail in Relation to Total Length	[553]
Color Pattern	[554]
Characters in which the Subgenus Eutamias
and the Genus Tamias Agree, but Differ
from the Subgenus Neotamias	[554]
Shape of the Infraorbital Foramen	[554]
Width of the Postorbital Process at Base	[554]
Position of the Supraorbital Notch	[554]
Degree of Convergence of the Upper Tooth-rows	[554]
Degree of Constriction of the Interorbital Region	[555]
Shape of the Pinna	[555]
Structural Features that are too Weakly
Expressed to be of Taxonomic Use	[555]
Discussion	[555]
Genera and Subgenera	[557]
Genus Eutamias Trouessart	[557]
Subgenus Eutamias Trouessart	[558]
Subgenus Neotamias Howell	[558]
Genus Tamias Illiger	[559]
Discussion	[559]
Conclusions	[560]
Literature Cited	[561]

Figs. 1-3. Dorsomedial Views of Malleus	[549]
Figs. 4-10. Lateral Views of Baculum	[551]
Figs. 11-12. Ventral Views of Hyoid Apparatus	[552]