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Gopher Snake - Pituophis catenifer - Stierslang
South-Canada, USA and North-Mexico.
The following 7 subspecies are being recognized:
Pituophis catenifer sayi - Southcentral-Canada through Central-USA (Montana, North-Dakota to Texas) and Northeast-Mexico;
Pituophis catenifer deserticola - Central-USA (East-Washington to Wyoming south to Nevada and North-New Mexico);
Pituophis catenifer catenifer - Southwest-Canada (South-British Colombia) and West-USA (Washington to North-California);
Pituophis catenifer affinis - South-USA (Southeast-California to West-Texas) and North-Mexico (Zacatecas to Chihuahua);
Pituophis catenifer annectens - Southwest-USA (South-California) and Northwest-Mexico (North-Baja California);
Pituophis catenifer pumilus - Santa Cruz Island, off California (Southwest-USA);
Pituophis catenifer fulginatus - San Martín Island, off Baja California (Northwest-Mexico).
Of this species there are no Nature Photo's available.