Florida Snake Identification Key
Southern Water Snake
Scientific name: Nerodia fasciata (LINNAEUS 1766)
The following will separate the two Southern Water 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:
Pattern of crossbands on back darkens with age, no dark spots in the light crossbands; belly with squarish spots; Florida panhandle through coastal plain to southern Alabama and North Carolina.
Your snake could be a Banded Water Snake, Nerodia fasciata fasciata.
Pattern of crossbands on back darkens with age, light crossbands contains dark spot on side; belly with red and black wormlike markings; peninsular Florida.
Your snake could be a Florida Water Snake, Nerodia fasciata pictiventris.