Volume 9, No. 23, pp. 579-670, 4 pls., 12 figs. in text

June 16, 1960

Speciation and Evolution of the Pygmy Mice, Genus Baiomys

BY

ROBERT L. PACKARD

UNIVERSITY OF KANSAS LAWRENCE 1960

UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY

Editors: E. Raymond Hall, Chairman, Henry S. Fitch,

Robert W. Wilson