Cuélebre (Asturian) or Culebre (Cantabrian), is a giant winged serpent-dragon of the Asturian and Cantabrian mythology, that lives in a cave, guards treasures and keeps anjanas (also known as xanas) as prisoners. Although they are immortal, the cuélebre age, and their scales become thick and impenetrable, and bat wings grow in their bodies. They must eventually flee Asturias and fly to the Mar Cuajada, a paradise located beyond the sea.