Eastern gartersnake

    Eastern Gartersnake

    Thamnophis sirtalis sirtalis
    hellbender, a large brown salamander resting in gravelly streambed

    Hellbender

    Cryptobranchus alleganiensis
    exclamation mark

    Endangered

    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