Hedammu

Hedammu was a giant sea serpent from Mesopotamian myth. It was thought to remain in deep waters and could drag down entire ships and consume its crew. It would attack ships non-stop as it was constantly hungry. Hedammu was thought to be the child of a man named Kumarbi and a daughter of the sea god. It was also seen as a challenger to the storm gods. To deal with the Hedammu, the gods sent Ishtar to seduce it.

Citations:

Maberry, Jonathan. Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us. United States, Kensington Publishing Corporation, 2006.

Wandering Myths: Transcultural Uses of Myth in the Ancient World. Germany, De Gruyter, 2018.