Dusky Pygmy Rattlesnake
Sistrurus miliarius barbouri
Federal and State Protections
Countries of Occurrence
United States of America
States or Providence
Florida, Georgia, Alabama, southeastern Mississippi and southeastern South Carolina
Usually 18in (46cm), record length 31in (79cm)
This small subspecies of rattlesnake is common in the southeastern US. In some localities of Florida and southern Georgia they are common, often drifting into urban areas (especially new development). It is noticeable due to its darker coloration and additional row of spots on the side. Dusky Pygmies prefer low-lying areas such as wetland edges and pine flatwoods, but may be found in sandhill habitats.
They are a generalist predator, taking prey such as lizards, amphibians, rodents and even invertebrates (centipedes).
Eptifibatide, a medicine used to help prevent blood clots & heart attacks is produced using unique venom components from the Dusky Pygmy Rattlesnake.
Carolina Pygmy rattlesnakes and Dusky Pygmy rattlesnakes are known to interbreed in regions of central Georgia and southern South Carolina.