（*Polu/gonos), a son of Proteus, a grandson of Poseidon and brother of Telegonus.
The two brothers were killed by Heracles at Torone, when they challenged him to a contest in wrestling. (Apollod. 2.5.9.) [L.S]
William Smith. A Dictionary of Greek and Roman biography and mythology. London. John Murray: printed by Spottiswoode and Co., New-Street Square and Parliament Street. In the article on Soranus, we find: "at this present time (1848)" and this date seems to reflect the dates of works cited. 1873 - probably the printing date.