This document summarizes the Asturian myth of the cuélebre. The cuélebre is a winged serpent that guards treasures and attacks people and animals. It has a dragon-like body covered in hard scales, a poisonous breath, and wings. According to the myth, cuélebres live in forests and caves until they grow old, at which point they fly to the sea and plunge to the bottom, where they spend their remaining days guarding underwater riches. The myth inspired a popular song in Asturian folklore.