The Elmendorf Beast was the name given to a coyote blamed for several attacks on livestock in Elmendorf, Texas, various opinions have been offered as to the identity of the creature, whose appearance had been altered by sickness and/or congenital ailments, and that it was a wolf–coyote cross, including the Xoloitzcuintli , a short, hairless breed of dog, found in toy, miniature, and standard sizes, in English-speaking countries is known as what?