Sonoran Gopher Snake
Pituophis catenifer affinis








Santa Cruise Island
Gopher Snake
Pituophis catenifer pumilis









Mexican Lined Pine Snake
Pituophis l. lineaticollis








Black Pine Snake
Pituophis m. lodingi









Texas Bull Snake
Pituophis catenifer sayi









Bull Snake, Kankaee Co.
Pituophis catenifer sayi









Bull Snake, Indiana
Pituophis catenifer sayi









Louisiana Pine Snake
Pituophis ruthveni