Florida Snake Identification Key
Salt Marsh Snake
Scientific name: Nerodia clarkii (BAIRD & GIRARD 1853)
The following key will separate the three Salt Marsh Snakes found in Florida. If you are unable to distinguish between them based on the characteristics in the key below, you probably can do so using the geographic location alone.
Select the box below that is the closest match to your snake:
Back gray with prominent stripes on neck and body; northwest Florida Gulf coast west to eastern Texas.
Your snake could be a Gulf Salt Marsh Snake, Nerodia clarkii clarkii.
Back color variable from olive to brown to rust to black, some with stripes on neck, some with faint crossbands on body; from the central Florida Gulf coast south through the Florida Keys and north along the eastern coast to Brevard County.
Your snake could be a Mangrove Salt Marsh Snake, Nerodia clarkii compressicauda.
Back grayish-tan with dark stripes on front half of body that break into blotches on back half; Eastern coast of Florida from Brevard County to Flagler County.
Your snake could be a Atlantic Salt Marsh Snake, Nerodia clarkii taeniata.