Evolution in the genus Bufo

Pp. viii, 459, 6 full page color plates, numerous text-figures, black-and-white photos, and maps. Publisher's original olive green cloth, lettered in gilt over black on the spine, pictorial green dust jacket, lettered in white, lg 4to. A detailed study of how the approximately 200 species of the genus Bufo evolved and attained their present distribution. No ownership marks and no signs of use.