Peg Powler

The Peg Powler is a hag from English folklore with green skin, long hair and sharp teeth who is said to inhabit the River Tees. She grabs the ankles of those who wander too close to the water's edge, especially naughty children, and pulls them under the water and drowns them; in Middleton In Teesdale this is referred to as the High Green ghost. It is highly similar to the Dutch folklore figure Haantje Pik, the Slavic water spirit Vodyanoy, Kalle met de Haak from West-Flanders and the German water spirit Hastrman. Grindylows and Jenny Greenteeth are similar water spirits.

...
Wikipedia