The eastern ratsnake, Pantherophis alleghaniensis, is found in the United States east of the Apalachicola River in Florida, east of the Chattahoochee River in Georgia, east of the Appalachian Mountains, north to southeastern New York and western Vermont, eastern Pennsylvania, Maryland, South Carolina, North Carolina, Georgia, south to the Florida Keys. In the Florida Panhandle, it readily hybridizes with the gray rat snake (Pantherophis spiloides).
The Eastern Ratsnake
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An adult eastern rat snake
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The yellow rat snake is a variant of the eastern rat snake, which is often black on the back.