Cover image for A preliminary study of the North American opossums of the genus Didelphis
A preliminary study of the North American opossums of the genus Didelphis
Title:
A preliminary study of the North American opossums of the genus Didelphis
Author:
Allen, J. A. (Joel Asaph), 1838-1921.
Publication Information:
[New York] : [Published by order of the Trustees, American Museum of Natural History], [1901]
Physical Description:
pages 149-188, 4 unnumbered leaves of plates : illustrations ; 24 cm.
General Note:
Title from caption.

At head of title: Article 11.

Date of publication: June 15, 1901. Cf. introd. text to v. 14.

"The present paper relates primarily to the forms of the genus Didelphis occurring in Mexico and the United States ... It embraces ... a few specimens from Guatemala, Nicaragua, and Costa Rica, and many examples from the Cauca region of western Colombia, the Santa Marta region of eastern Colombia, and the island of Trinidad ... the Mexican material ... forms the principal part of the collection."
Language:
English
Contents:
Introduction -- Skull and dentition. Sexual variation. Variation due to age, etc. Nasal bones. Supernumerary teeth, and other abnormalities -- Change in color of the ears with age -- Nomenclature -- Synopsis of species and subspecies -- Postscript -- Tables of measurements and ratios.
Format :
Book