Eastern gartersnake

    Eastern Gartersnake

    Thamnophis sirtalis sirtalis
    Image of a Mississippi green watersnake

    Mississippi Green Watersnake

    Nerodia cyclopion
    exclamation mark

    Endangered

    Image of a yellow-bellied watersnake

    Plain-Bellied Watersnake

    Nerodia erythrogaster
    Photo of a plains gartersnake taken in Lakewood, Colorado.

    Plains Gartersnake

    Thamnophis radix
    northern rough greensnake

    Rough Greensnake

    Opheodrys aestivus
    small green snake coiled in straw

    Smooth Greensnake

    Opheodrys vernalis