Note 11 — BOOK VI. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST, OR FORMERLY EXISTED.
John Bostock translation
On the river Calpas or Calpe, in Bithynia. Xenophon, in the Anabasis, describes it as about half way between Byzantium and Heraclea. The spot is identified in some of the maps as Kirpeh Limán, and the promontory as Cape Kirpeh.