Arethusa, and Hesperethusa, the three daughters of Hesperus.

Hesiod says that these "clear-voiced Hesperides", daughters of Ceto and Phorcys, guarded the golden apples beyond Ocean in the far west of the world, gives the number of the Hesperides as four, and their names as: Aigle (or Aegle, "dazzling light"), Erytheia (or Erytheis), Hesperia ("sunset glow") whose name refers to the colour of the setting sun, red, yellow,