In later Ptolemaic antiquity he took on two partially distinct roles; one as the Agathos Daimon a prominent serpentine civic god, who served as the special protector of Alexandria.[2] The Oracle of the Potter, an Egyptian nationalistic text, predicted the coming doom of Alexandria, with the local gods Knephis (also often represented as a serpent) and Agathos Daimon leaving the city for Memphis, and the defeat of the Macedonian invaders, and their 'age of chaos'.Though he is noted in Greek mythology (Pausanias conjectured that the name was merely an epithet of Zeus),[6] it was customary to drink or pour out a few drops of unmixed wine to honor the Agathos Daimon after a meal.[10][11] Their numinous presence could be represented in art as a serpent or more concretely as a young man bearing a cornucopia and a bowl in one hand, and a poppy and an ear of grain in the other.In the syncretic atmosphere of late Antiquity, agathodaemons could be bound up with Egyptian bringers of security and good fortune: a gem carved with magic emblems bears the images of Serapis with crocodile, sun-lion and Osiris mummy surrounded by the lion-headed snake Chnum–Agathodaemon–Aion, with Harpocrates on the reverse.
Coin of
Antoninus Pius
, 160 AD from
Alexandria
, Egypt. On the reverse to the left, a serpent portrayal of Agathodaimon; to the right, a portrayals of an
Uraeus
serpent.