Chimaera

The Chimera or Chimaera (Greek: Χίμαιρα, Khimaira, from χίμαρος, khimaros, "she-goat") was, according to Greek mythology, a monstrous fire-breathing female creature of Lycia in Asia Minor, composed of the parts of multiple animals: upon the body of a lioness with a tail that ended in a snake's head, the head of a goat arose on her back at the center of her spine. The Chimera was one of the offspring of Typhon and Echidna and a sibling of such monsters as Cerberus and the Lernaean Hydra. The term chimera has also come to mean, more generally, an impossible or foolish fantasy, hard to believe.

http://en.wikipedia.org/wiki/Chimera_(mythology)

The important (and confusing) part of the Chimaera is the goat looking backwards.