He was a son of Iapetus and Clymene or Asia, and a brother of Atlas, Prometheus and Epimetheus. He was killed by Zeus with a flash of lightning, in the fight of the Titans, and thrown into Tartarus. (Hes. Theog. 507, &c., 514; Apollod. i. 2. § 3; Schol. ad Aeschyl. Prom. 347.)