Salmydessus (sal-mih-DESS-us). Actual ancient city on the Black Sea, erroneously located on the Hellespont in the myth involving King Phineus and the Argonauts. In gratitude for their relieving him of the Harpies, Phineus advised Jason and his shipmates how to sail between the Clashing Rocks. This peril supposedly lay ahead of them, on their route between Salmydessus and the land of the Golden Fleece. But the real Salmydessus was beyond the location of the mythological Clashing Rocks.