William Edward Duellman
A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México
William Edward Duellman
Amphibians and Reptiles of the Rainforests of Southern El Petén, Guatemala
William Edward Duellman
The Amphibians and Reptiles of Michoacán, México
William Edward Duellman
The Genera of Phyllomedusine Frogs (Anura: Hylidae)
William Edward Duellman
A Taxonomic Study of the Middle American Snake, Pituophis deppei
William Edward Duellman
A Review of the Middle American Tree Frogs of the Genus Ptychohyla
William Edward Duellman
Descriptions of New Hylid Frogs From Mexico and Central America
William Edward Duellman
A Review of the Frogs of the Hyla bistincta Group
William Edward Duellman
Descriptions of Two Species of Frogs, Genus Ptychohyla
William Edward Duellman
Systematic Status of the Colubrid Snake, Leptodeira discolor Günther
William Edward Duellman
A Synopsis of Neotropical Hylid Frogs, Genus Osteocephalus
William Edward Duellman
A Curated Selection of 13 Fascinating Books About Snakes
William Edward Duellman
