Classification
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Thamnophis - North American Garter & Ribbon Snakes
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Thamnophis melanogaster - Mexican Black-bellied Gartersnake
- T. m. canescens - Gray Black-bellied Gartersnake
- T. m. chihuahuanensis - Chihuahuan Black-bellied Gartersnake
- T. m. linearis - Lined Black-bellied Gartersnake
- T. m. melanogaster - Mexican Black-bellied Gartersnake
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Thamnophis melanogaster - Mexican Black-bellied Gartersnake