Viperine Water Snake

The viperine water snake is a nonvenomous, semiaquatic snake, which is not a member of the subfamily Viperinae. Its name was given due to its similarities in looks and behaviour with a venomous snake.
On the land, the viperine snake looks like a viper, except it doesn't bite. However, underwater this snake looks like a grass snake and hunts its prey in the same way.