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Maturational Molts and Seasonal Molts in Peromyscus boylii
L. N. Brown
The American Midland Naturalist
Vol. 70, No. 2 (Oct., 1963), pp. 466-469
Published by: The University of Notre Dame
Stable URL: http://www.jstor.org/stable/2423070
Page Count: 4
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The time and sequence of maturational molts for Peromyscus boylii were documented in the laboratory and an approximate age classification developed. The mode of duration of the juvenile pelage was five weeks; subadult pelages, seven weeks; young adult pelage, three weeks; intermediate pelage, seven weeks; and the fully adult pelage followed indefinitely. Two annual adult molts were recorded in natural populations of the brush mouse; one in spring and a second in fall. The summer and winter pelages were distinguished on the basis of color differences. In natural populations of the brush mouse the youngest animals observed to be sexually active were in the subadult pelage.
The American Midland Naturalist © 1963 The University of Notre Dame