Note 3814 — BOOK V. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
So called probably from the Greek διαφανὴς, “transparent.” It has not been identified, but it was no doubt a small stream falling into the Gulf of Issus.