Robert Powell is professor emeritus of biology at Avila University in Kansas City, Missouri. Joseph T. Collins was director of the Center for North American Herpetology in Lawrence, Kansas. Both were coauthors (with Roger Conant) of the Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America.Errol D. Hooper, Jr, is an accomplished scientific illustrator.

This book is a 'must have' for herpetology-oriented biologists and serious amateurs. It is an indispensable teaching tool and a valuable reference. Since the publication of the first edition, every student who has taken my herpetology course has been required to have a copy and every student with whom I have spoken since has kept their copies after the class was over." - Arthur C. "Sandy" Echternacht, University of Tennessee, Knoxville"This comprehensive key to the native and introduced species of amphibians and nonavian reptiles, with its excellent artwork and insightful synopses of the many taxonomic controversies, will be of considerable interest to amateur and professional herpetologists and many natural history organizations." - Brian T. Miller, Middle Tennessee State University

Robert Powell is professor emeritus of biology at Avila University in Kansas City, Missouri. Joseph T. Collins was director of the Center for North American Herpetology in Lawrence, Kansas. Both were coauthors (with Roger Conant) of the Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America.Errol D. Hooper, Jr, is an accomplished scientific illustrator.

This book is a 'must have' for herpetology-oriented biologists and serious amateurs. It is an indispensable teaching tool and a valuable reference. Since the publication of the first edition, every student who has taken my herpetology course has been required to have a copy and every student with whom I have spoken since has kept their copies after the class was over." - Arthur C. "Sandy" Echternacht, University of Tennessee, Knoxville"This comprehensive key to the native and introduced species of amphibians and nonavian reptiles, with its excellent artwork and insightful synopses of the many taxonomic controversies, will be of considerable interest to amateur and professional herpetologists and many natural history organizations." - Brian T. Miller, Middle Tennessee State University

Robert Powell is professor emeritus of biology at Avila University in Kansas City, Missouri. Joseph T. Collins was director of the Center for North American Herpetology in Lawrence, Kansas. Both were coauthors (with Roger Conant) of the Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America.Errol D. Hooper, Jr, is an accomplished scientific illustrator.

This book is a 'must have' for herpetology-oriented biologists and serious amateurs. It is an indispensable teaching tool and a valuable reference. Since the publication of the first edition, every student who has taken my herpetology course has been required to have a copy and every student with whom I have spoken since has kept their copies after the class was over." - Arthur C. "Sandy" Echternacht, University of Tennessee, Knoxville"This comprehensive key to the native and introduced species of amphibians and nonavian reptiles, with its excellent artwork and insightful synopses of the many taxonomic controversies, will be of considerable interest to amateur and professional herpetologists and many natural history organizations." - Brian T. Miller, Middle Tennessee State University