The Water Leaper, also known as Llamhigyn Y Dwr, is a creature from
Welsh folklore that lived in swamps and ponds.It is described as a giant frog with a bat's wings instead of forelegs, no hind legs, and a long, lizard-like tail. It jumps across the water using its wings, hence its name.It was blamed for problems ranging from snapping fishing lines to eating livestock or even fishermen.
See more at Wikipedia.org...
[Folklore] The Water Leaper (Llamhigyn Y Dwr) is a tailed, winged, toad-like creature which lurks in Welsh lakes and preys on fishermen.