About Oannes: http://etc.usf.edu/clipart/25900/25900/oannes_25900.htm
"The name of a Babylonian god, who, in the first year of the foundation of Babylon, is said to have come out of the Persian Gulf, or the old Erythraean Sea, adjoining Babylon. He is described as having the head and body of a fish, to which were added a human head and feet under the fish's head and at the sail. He lived amongst men during the daytime, without, however, taking any food, and retired at sunset to the sea, from which he had emerged." — Chambers, 1881
An imaginary painting of Babylonian God Oannes:
Iranian archaeologist Ayyub Soltani has recently discovered a bas-relief of a fish-man in the northernmost part of the Persian Gulf in Khuzestan province of Iran:
It seems to be the same Babylonian God Oannes who has been described in the ancient Mesopotamian texts.