Whether you're an amateur or a professional, the Bartletts' Guide and Reference is an authoritative, easy-to-use, full-color resource to the 209 snake species and subspecies (native, introduced, and established) found within eastern and central North America. Classified by family, each species is illustrated with a full-color photo showing most natural intergrades and color phases. Detailed descriptions include information on appearance, naturally occurring color morphs, behavior, range, habitat, prey, and look-alikes, as well as the authors' personal observations from the field. Ecological issues are also highlighted. So no matter where you reside or roam, let the Bartletts be your guides to locating and identifying this region's remarkable herpetological life forms.