Florida Snake Identification Key
Black Swamp Snake, Swamp Snake
Scientific name: Seminatrix pygaea (COPE 1871)
The following will separate the two Swamp 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:
117 or fewer belly scales; short triangular markings on either side of the belly scales; southern Florida.
Your snake could be a Southern Florida Swamp Snake, Seminatrix pygaea cyclas.
118 or more belly scales; transverse black line on either side of the belly scales; central Florida and the coastal plain to southeastern Alabama and Georgia.
Your snake could be a Northern Florida Swamp Snake, Seminatrix pygaea pygaea.