(Θεοφάνη), a daughter of Bisaltes, who, in consequence of her extraordinary beauty, was beleaguered by lovers, but was carried off by Poseidon to the isle of Crinissa. As the lovers followed her even there, Poseidon metamorphosed the maiden into a sheep and himself into a ram, and all the inhabitants of the island into animals. As the lovers began to slaughter these animals, he changed them into wolves. The god then became by Theophane the father of the ram with the golden fleece, which carried Phrixus to Colchis. (Hygin. Fab. 188.)
[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