A Taxonomic Study of the Middle American Snake, Pituophis deppei

Descriptions of New Hylid Frogs From Mexico and Central America

The Amphibians and Reptiles of Michoacán, México

A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacan, Mexico

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

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

Systematic Status of the Colubrid Snake, Leptodeira discolor Gunther

The Genera of Phyllomedusine Frogs (Anura Hylidae)

Middle American Frogs of the Hyla microcephala Group