in Fabulous History, was the son of Arestor, and had 100 eyes, 50 of which were always open. Hera made choice of him to guard Io, whom Zeus had transformed into a white heifer; but Zeus, pitying Io for being so closely confined, sent Hermes, who with his flute charmed Argus to sleep, sealed up his eyes with his caduceus, and then cut off his head. Hera, to reward his fidelity, transplanted his eyes into the tail of the peacock, a bird which was sacred to her divinity.