Cuelebre

According to Asturian mythology, Cuélebre (Cuélebre or Culebre) is a loud—hissing poison-breathing snake with bat wings that makes its lairs underground or in caves. In them he guards the captive nymphs (xana).

Cuelebres are usually motionless and move from their places only for the sake of hunting people and cattle. Cuelebre's saliva turns into a healing magic stone. Some legends associate Cuelebre with the treasures of the Moors.

Sometimes cuelebres form a ball, most often seven snakes.

On Midsummer Night, a brave man has a chance to defeat Cuelebre, whose spells are losing their power at this time, get his treasures and marry the freed nymph. But in some places The Cantabrians believe that on St. Bartholomew's Night, the serpent's strength increases, and he takes it out on people.