From Citizendium, the Citizens' Compendium
Scylla : From Greek mythology, she was a monster with legs made of snakes, and she had six heads and upper bodies. Her food? Humans, according to Elizabeth Vandiver, Classics scholar and authority on Greek mythology and Greek tragedy including the Iliad, Odyssey, Aeneid, Homer, and Virgil. This definition is based on her course Classical Mythology from The Teaching Company.