| Word | Definitions | Synonyms |
|---|---|---|
| massasauga | (noun) pygmy rattlesnake found in moist areas from the Great Lakes to Mexico; feeds on mice and small amphibians | Synonyms: massasauga rattler, Sistrurus catenatus |
| (noun) small pygmy rattlesnake | Synonyms: ground rattler, Sistrurus miliaris |