Monsters: Peg Powler

A Peg Prowler is a water spirit in English Folklore who inhabits the River Tees. She's an old hag with green hair and green skin who drags children into the water and drowns them if they stand too close. It's said that she has an insatiable desire for human life. Some stories say that she's seen as a beautiful woman drowning and would drown those who attempted to save her. The foam or froth floating on parts of the Tees is called Peg Prowler's suds or creams.

she's a creature similar to Jenny Greenteeth 

SOURCES:

Wikipedia

Hypnogoria