(Ἄτραξ), a son of Peneius and Bura, from whom the town of Atrax in Hestiaeotis was believed to have derived its name. (Steph. Byz. s. v.) He was the father of Hippodameia and Caenis, the latter of whom by the will of Poseidon was changed into a man, and named Caenus. (Antonin. Lib. 17; Ov. Met. 12.190, &c.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890