 The Huitzilan believe that a dog carries the dead across the water to reach the underworld home of the Devil.Across much of Mexico, evil sorcerers are believed to be able to transform themselves into a black dog in order to prey upon the livestock of their neighbours.In the states of central Mexico (such as Oaxaca, Tlaxcala and Veracruz) such a sorcerer is known as a nahual, in the Yucatan Peninsula they go by the name of "huay chivo".