Amphibians and reptiles thrive in New Mexico's many landscapes and its extremes of temperatures and moisture. The state has 123 species, an assemblage of 3 salamanders, 23 frogs and toads, 10 turtles, 41 lizards, and 46 snakes. In this comprehensive guide, each species is presented in a colour photograph and its distribution shown on a map. Technical art supplements identification keys and line art complements family descriptions. For each species, the following information is provided: type, distribution, description, similar species, systematics, habitat, behaviour, reproduction, food habits, and references. The detailed descriptions add immeasurably to students' and herpetologists' knowledge about the region's herpetofauna. This book is also of great benefit to non-specialists, including casual hikers, since the authors write in accessible language that makes for easy identifications of species.