Note 3427 — 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 from the peculiar features of the locality, the Greek word καταβαθμὸς, signifying “a descent.” A deep valley, bounded east and west by ranges of high hills, runs from this spot to the frontiers of Egypt. It is again mentioned by Pliny at the end of the present Chapter. The spot is still known by a similar name, being called Marsa Sollern, or the “Port of the Ladder.” In earlier times the Egyptian territory ended at the Gulf of Plinthinethes, now Lago Segio, and did not extend so far as Catabathmos.