genus Sistrurus


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Noun1.genus Sistrurus - pygmy rattlesnakesgenus Sistrurus - pygmy rattlesnakes      
reptile genus - a genus of reptiles
Crotalidae, family Crotalidae - New World vipers: pit vipers
massasauga rattler, Sistrurus catenatus, massasauga - pygmy rattlesnake found in moist areas from the Great Lakes to Mexico; feeds on mice and small amphibians