Chris Mattison,Chris Mattison / Cedros gopher snake (Pituophis catenifer insulanus / Pituophis insulanus) Cedros Island, Baja California, Mexico
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Daniel Heuclin / Great basin Gopher Snake / Bullsnake (Pituophis catenifer deserticola) head profile, controlled conditions, Joshua Tree National Monument, California USA
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Shattil & Rozinski / Bullsnake {Pituophis catenifer sayi} ready to strike, Colorado, USA
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Daniel Heuclin / Sonoran gophersnake (Pituophis catenifer affinis) with tracks in sand, Arizona, USA, June.
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Daniel Heuclin / Sonoran gophersnake (Pituophis catenifer affinis) with tracks in sand, Arizona, USA, June.
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Daniel Heuclin / Sonoran Gophersnake (Pituophis catenifer affinis) in tree, Arizona, USA, June.
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Daniel Heuclin / Sonoran Gophersnake (Pituophis catenifer affinis) in tree, Arizona, USA, June.
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Daniel Heuclin / Sonoran Gophersnake (Pituophis catenifer affinis) in tree, Arizona, USA, June.
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Daniel Heuclin / Sonoran Gophersnake (Pituophis catenifer affinis) Arizona, USA, June.
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Daniel Heuclin / Sonoran Gophersnake (Pituophis catenifer affinis) Arizona, USA, June.
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Claudio Contreras / Gopher snake (Pituophis catenifer), Santa Margarita Ranch, near Cotulla, Laredo Borderlands, Texas, USA. April.
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Chris Mattison / Great Basin Gopher Snake (Pituophis catenifer deserticola) Joshua Tree National Park, California, USA, May.
