New York Natural Heritage Program
Timber Rattlesnake
Crotalus horridus Linnaeus, 1758
Reptiles
Kingdom: Animalia

      Phylum: Craniata

           Class: Reptiles (Reptilia)

                Order: Lizards, Snakes and Amphisbaenians (Squamata)

                     Family: Vipers and Pit Vipers (Viperidae)