#genus_Sistrurus__Sistrurus  pygmy rattlesnakes
  supertype:  #reptile_genus__reptilegenu  a genus of reptiles
  member of:  #family_Crotalidae
  member:  #massasauga_rattler__massasauga__Sistrurus_catenatus  pygmy rattlesnake found in moist areas from the Great Lakes to Mexico; feeds on mice and small amphibians

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