Jenny Green-teeth is a malevolent Lancashire water spirit.
Jenny Greenteeth hides in ponds waiting for children to come near by. She then leaps out and grabs them, dragging them down to the water depths and drowning them.
Jenny Greenteeth can often be spotted by the green scum that floats on the water above her. Sometimes she comes out of the water and climbs to the top of trees, moaning in the night wind.