Lee (biology, Univ. of Miami, Coral Gables) here offers a comprehensive survey of 181 species of reptiles and amphibians inhabiting the Yucatan peninsula. For each, he gives a detailed morphological description, characteristics that differentiate them from similar species, and range maps of their distribution within the Yucatan. Brief accounts of ecological relationships and natural history are also included, and quality color photos show the animals and their habitat. A competent taxonomic key, in both English and Spanish, aids in the identification of unknown species collected within this geographic region. Organized primarily for reference use, the informationpreviously available only in journalsis precise and accurate. A fascinating concluding chapter on the role of amphibians and reptiles in regional cultures is the only departure from descriptive biology. Although the material is accessible to the lay reader, the narrow topic will restrict the book's appeal to specialists. Recommended for academic collections.Frank Reiser, Nassau Community Coll., Garden City, N.Y.