William Edward Duellman

Descriptions of Two Species of Frogs, Genus Ptychohyla: Studies of American Hylid Frogs, V

William Edward Duellman

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Descriptions of New Hylid Frogs From Mexico and Central America

William Edward Duellman

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Type specimens of amphibians and reptiles in the Museum of Natural History, the University of Kansas

William Edward Duellman

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A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacán, México

William Edward Duellman

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Systematic Status of the Colubrid Snake, Leptodeira discolor Günther

William Edward Duellman

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The Genera of Phyllomedusine Frogs (Anura: Hylidae)

William Edward Duellman

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A Review of the Frogs of the Hyla bistincta Group

William Edward Duellman

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Middle American Frogs of the Hyla microcephala Group

William Edward Duellman

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A Taxonomic Study of the Middle American Snake, Pituophis deppei

William Edward Duellman

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A Review of the Middle American Tree Frogs of the Genus Ptychohyla

William Edward Duellman

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A Synopsis of Neotropical Hylid Frogs, Genus Osteocephalus

William Edward Duellman

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A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México

William Edward Duellman

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Amphibians and Reptiles of the Rainforests of Southern El Petén, Guatemala

William Edward Duellman

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The Amphibians and Reptiles of Michoacán, México

William Edward Duellman

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Neotropical Hylid Frogs, Genus Smilisca

William Edward Duellman

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