1. Large dark-blue nonvenomous snake that invades burrows; found in southern North America and Mexico
   - indigo snake, Drymarchon corais 
2. Bull snake of western North America that invades rodent burrows
   - Pituophis melanoleucus

Derived forms: gopher snakes

Type of: bull snake, bull-snake, colubrid, colubrid snake

Encyclopedia: Gopher snake

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