A son of Belus of Egypt, and the brother of Cepheus. He was the fiancée, and uncle, of Andromeda. When Andromeda was about to be wedded to Perseus, Phineus showed up and angrily demanded the bride, and when he was denied he attacked Perseus and Cepheus. In the ensuing battle, Phineus killed the famous boxers Ammon and Broteas, friends of Perseus, the courtier Idas, and Ampycus, a priest of Demeter. When he attacked Perseus together with several of his followers, Perseus used Medusa's head to turn them all into stone.
- Ovid. Metamorphoses v, 8 ff.