A daughter of Tartarus and Ge (Apollod. ii. 1. § 2), or of Chrysaor and Callirrhoë (Hesiod. Theog. 295), and according to others again, of Peiras and Styx. (Paus. viii. 18. § 1.) Echidna was a monster, half maiden and half serpent, with black eyes, fearful and bloodthirsty. She was the destruction of man, and became by Typhon the mother of the Chimaera, of the many-headed dog Orthus, of the hundred-headed dragon who guarded the apples of the Hesperides, of the Colchian dragon, of the Sphinx, Cerberus, Scylla,Gorgon, the Lernaean Hydra, of the eagle which consumed the liver of Prometheus, and of the Nemean lion. (Hes. Theog. 307, &c.; Apollod. ii. 3. § 1, 5. §§ 10, 11, iii. 5. § 8; Hygin. Fab. Praef. p. 3, and Fab.151.) She was killed in her sleep by Argus Panoptes. (Apollod. ii. 1. § 2.) According to Hesiod she lived with Typhon in a cave in the country of the Arimi.