It is said to be found in the Seligsbergsee. It is said to look like a serpent, to be sacly and to have feet like claws. This draconic creature had a reputation for coming ashore at night and devouring cattle. It was said to be able to shapeshift into the form of a spectral horse. It was supposed to have supernatural qualities and this was belived at least until 1921. The most recent sighting I know of took place in 1926.