A daughter of Atlas and Pleione (whence she is called Atlantis and Pleias), was the eldest of the Pleiades, and in a grotto of mount Cyllene in Arcadia she became by Zeus the mother of Hermes. Arcas, the son of Zeus by Callisto, was given to her to be reared. (Hom. Od. xiv. 435, Hymn. in Merc. 3; Hes. Theog. 938; Apollod. iii. 10. § 2, 8. § 2; Tzetz. ad Lycoph. 219; Horat. Carm. i. 10. 1, 2. 42, &c. )