A sea divinity in Greek mythology, analogue to the Roman Portumnus, the tutelary god of ports and shores. Under the name Melicertes he had been a child of Ino and Athmas. Ino had nursed the god Dionysus, one of Zeus' many illegitimate children, and jealous Hera had driven Athmas mad, so that he pursued his wife with intent to kill her. Carrying her child, she leaped into the sea, where both of them became minor deities-he thereafter called Palaemon and she Leucothea. He was usually portrayed riding on a dolphin and was invoked as a savior from shipwreck. The Isthman Games were celebrated in his honor.
It is implied that Palaemon is the god of sharks, as he has a "legion of sharks" at his disposal. The people of Greece also thought of him as the god of harbors, so he may also be the god of sharks and harbors.