https://www.fws.gov/species/eastern-massasauga-sistrurus-catenatus
Eastern Massasauga (Sistrurus catenatus) | U.S. Fish & Wildlife Service
Massasaugas are small snakes with thick bodies, heart-shaped heads and vertical pupils. The average length of an adult is about 2 feet. Adult massasaugas are...
eastern massasaugafishwildlifeservice
https://www.fws.gov/media/eastern-massasauga-rattlesnake-6
Eastern massasauga rattlesnake | FWS.gov
eastern massasaugarattlesnakefws