| Coluber constrictor constrictor         | 
                                                                      Northern Black Racer         | 
                                                                      Moderate         | 
                                                                      G5T5         | 
                                                                      NA         | 
                                                                      Watchlist [Assessment Priority]         | 
          
      
                                                                      | Pituophis melanoleucus melanoleucus         | 
                                                                      Northern Pinesnake         | 
                                                                      High         | 
                                                                      G4T4         | 
                                                                      NA         | 
                                                                      RSGCN         | 
          
      
                                                                      | Sistrurus catenatus         | 
                                                                      Eastern Massasauga         | 
                                                                      High         | 
                                                                      G3         | 
                                                                      T         | 
                                                                      RSGCN         | 
          
      
                                                                      | Thamnophis brachystoma         | 
                                                                      Short-headed Gartersnake         | 
                                                                      Moderate         | 
                                                                      G4         | 
                                                                      NA         | 
                                                                      RSGCN         | 
          
      
                                                                      | Virginia valeriae pulchra         | 
                                                                      Mountain Earthsnake         | 
                                                                      Moderate         | 
                                                                      G5T3T4         | 
                                                                      NA         | 
                                                                      RSGCN         | 
          
      
                                                                      | Heterodon platirhinos         | 
                                                                      Eastern Hog-nosed Snake         | 
                                                                      Moderate         | 
                                                                      G5         | 
                                                                      NA         | 
                                                                      Watchlist [Assessment Priority]         | 
          
      
                                                                      | Opheodrys vernalis         | 
                                                                      Smooth Greensnake         | 
                                                                      Moderate         | 
                                                                      G5         | 
                                                                      NA         | 
                                                                      Watchlist [Assessment Priority]         | 
          
      
                                                                      | Pantherophis guttatus         | 
                                                                      Red Cornsnake         | 
                                                                      High         | 
                                                                      G5         | 
                                                                      NA         | 
                                                                      Watchlist [Assessment Priority]         | 
          
      
                                                                      | Crotalus horridus         | 
                                                                      Timber Rattlesnake         | 
                                                                      High         | 
                                                                      G4         | 
                                                                      NA         | 
                                                                      RSGCN         |