Product Description: This comprehensive key for identifying specimens of amphibians and reptiles in the U.S. and Canada - the first since 1983 - incorporates the wealth of scientific findings generated by molecular systematics (the study of DNA to determine genetic relationships) and simplifies identification by making geographic origin a leading factor...read more (view table of contents, read Amazon.com's description)
Product Description: The first edition was published in 1958, the second in 1975. This third edition of the invaluable field guide features new information, color plates, and new maps. Annotation copyright Book News, Inc. Portland, Or.
9780395199770 | 2 edition (Houghton Mifflin, June 1, 1975), cover price $13.95 | About this edition: Provides information on all species and subspecies of crocodilians, turtles, lizards, snakes, salamanders, toads, and frogs