Note 2309 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
The Piræus was united to the city by two walls, called the “Long Walls,” forty stadia in length. The length of the Phaleric wall was thirty-five stadia.