Classification
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Heterodon - North American Hog-nosed Snakes
- Heterodon gloydi - Dusty Hog-nosed Snake
- Heterodon kennerlyi - Mexican Hog-nosed Snake
- Heterodon nasicus - Plains Hog-nosed Snake
- Heterodon platirhinos - Eastern Hog-nosed Snake
- Heterodon simus - Southern Hog-nosed Snake