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16 garter snakes species
Thamnophis sirtalis
Thamnophis ordinoides
Thamnophis elegans
Thamnophis radix
Thamnophis saurita
Thamnophis butleri
Thamnophis brachystoma
Thamnophis atratus
Thamnophis proximus
Thamnophis hammondii
Thamnophis cyrtopsis
Thamnophis couchii
Thamnophis marcianus
Thamnophis rufipunctatus
Thamnophis gigas
Thamnophis eques
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