Frogs — Audiobooks
Neotropical Hylid Frogs, Genus Smilisca
by William Edward Duellman, Linda Trueb
A Field Study of the Kansas Ant-Eating Frog, Gastrophryne olivacea
by Henry S. (Henry Sheldon) Fitch
A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope
by John D. Lynch
Descriptions of Two Species of Frogs, Genus Ptychohyla
by William Edward Duellman
A New Species of Frog (Genus Tomodactylus) from Western México
by Robert G. Webb