From the Illinois Natural History Survey, the _Field Guide to Amphibians and Reptiles of Illinois_ is designed for use by students, naturalists, biologists, land managers, law enforcement officials, and others. One goal of the Guide "is to help the reader learn about all 102 species of amphibians and reptiles that live within the boundaries of Illinois. Basic information is presented on their...

The European Molecular Biology Laboratory (EMBL) of Heidelberg (Germany) hosts the Reptile Database, providing taxonomic information on Lizards, Snakes, Tuataras, Crocodiles, Amphisbaenians, and Turtles. The database is intended "to provide information on the classification of all living reptiles by listing all species and their pertinent higher taxa." Each section may be browsed by taxa at the...