3. A son of Ares and Pelopia, challenged Heracles to single combat at Itone, and was killed in the contest. (Apollod. 2.7.7; Hesiod. Scut. Herc. 345, where Cycnus is a son-in-law of Ceyx, to whom Heracles is going.)
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.