Chimaera
Chimaera was a fire-breathing monster that lived in the mountains around Lycia. Chimaera was another monstrous offspring of Typhon and Echidna. Chimaera had the head and body of a lion, legs of a goat, and had a snake instead of a tail.
Iobates, king of Lycia, received a message from his son-in-law, King Proëtus (Proetus) of Tiryns, to kill Bellerophon, an exiled Corinthian prince. The gods frowned upon host who killed a guest, so Iobates decided to send Bellerophon to his death, requesting the hero to kill the monster Chimaera.
To avoid the fire from Chimaera, Bellerophon won and tamed Pegasus, the winged steed. Bellerophon was able to kill Chimaera with his bow and arrows, at a safe distance from the monster.
See Bellerophon about his other adventure.