Furies, in Greco-Roman mythology, the chthonic goddesses of vengeance. They were probably personified curses, but possibly they were originally conceived of as ghosts of the murdered. According to the Greek poet Hesiod, they were the daughters of Gaea (Earth) and sprang from the blood of her ...
28. 6 (trans. Jones) (Greek travelogue C2nd A.D.) : "Erinyes (Furies). It was Aiskhylos (Aeschylus) who first represented them with snakes in their hair. But on the [cult] images neither of these nor or any of the underworld deities is there anything terrible."...