Homer, Odyssey12.127–137, "They do not breed, nor do they become fewer in number, and they are tended by the goddesses Phaethusa and Lampetia, who are children of the sun-god Hyperion by Neaera. Their mother when she had borne them and had done suckling them sent them to the Thrinacian island, which was a long way off, to live there and look after their father's flocks and herds".
W. Walter Merry, James Riddell, D. B. Monro, Commentary on the Odyssey, 12.132