A Review of the Middle American Tree Frogs of the Genus Ptychohyla, published in 1963 by William Edward Duellman, is a scientific examination of the anatomy, morphology, and ecology of Ptychohyla frogs in Central America. This work serves as a critical resource for researchers and enthusiasts, addressing the limited prior research on these hylid frogs and their habitats. Duellman details his specimen collection efforts, breeding call recordings, and the challenges of studying these frogs in mountainous regions, providing a comprehensive overview of the genus and its lesser-known species.
