Sumichrast's garter snake (Thamnophis sumichrasti) is a species of snake in the family Colubridae.

The specific name sumichrasti is in honor of the Swiss-born Mexican naturalist Adrien Jean Louis François Sumichrast (1828–1882).

[3] Thamnophis sumichrasti is found in the Mexican states of Chiapas, Hidalgo, Oaxaca, Puebla, Querétaro, San Luis Potosí, Tabasco, and Veracruz.

[2] The preferred natural habitats of T. sumichrasti are freshwater wetlands and forest.

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