Eastern gartersnake

    Eastern Gartersnake

    Thamnophis sirtalis sirtalis
    Photo of an eastern hog-nosed snake.

    Eastern Hog-Nosed Snake

    Heterodon platirhinos
    Photo of an eastern yellow-bellied racer.

    Eastern Yellow-Bellied Racer

    Coluber constrictor flaviventris
    Image of a Mississippi green watersnake

    Mississippi Green Watersnake

    Nerodia cyclopion
    exclamation mark

    Endangered

    Photo of a plains gartersnake taken in Lakewood, Colorado.

    Plains Gartersnake

    Thamnophis radix