Texas records
Mississippi Green Watersnake in Texas
HarmlessNerodia cyclopion

Yes. The Mississippi Green Watersnake has been recorded in 16 Texas counties. It is non-venomous (harmless). Heavy banded or blotched body, round pupils, and a narrow head — unlike the cottonmouth's broad, blocky head.
Texas counties with Mississippi Green Watersnake records
16 listedSee the full Mississippi Green Watersnake profile or all snakes in Texas.