There is little classical mythology associated with the Southern Fish. According to Ridpath, the fish is associated with the Syrian Fertility Goddess Atagartis, who fell into a lake near the Euphrates River and was saved by a large fish.
The Southern Fish is always shown with its mouth open drinking the water pouring from the jar of Aquarius. According to Staal, the fish is often seen as a sign of salvation in the legends of a great deluge. The fish drinks the waters of the flood to save the world.
The Southern Fish is sometimes seen as the parent of the two fish of Pisces.