『Descriptions of Two Species of Frogs, Genus Ptychohyla Studies of American Hylid Frogs, V』is a free short short e-book of William Edward Duellman available on Project Gutenberg. It has 2,905 words and may take about 10min to read.
Words Count
10min
2,905
Words
Beginning
http://www.pgdp.net UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Volume 13, No. 8, Pl.
Author
William Edward Duellman
(1930 - )