Aranda

Appearance
 The Aranda was a cosmic serpent from the Emianga region in Australia that would dwell in deep waters. It was depicted as a large aquatic snake.

Behavior
This creature is known to be territorial. It would wait in deep rivers where it could hide without disturbing the surface. It would snatch anything that came near its home, even humans. It would catch and eat anyone who was alone and near the water, usually to drink the water or fish from it. Then the monster would swallow them whole without leaving a single trace behind.

Origins/Human Interactions
This story was usually used to scare people from entering the water alone.