The latter stream was, however, known also, both in its upper and its lower course, as the Pasitigris.
On the opposite side of the Empire the rivers were less considerable.
Among the most important may be mentioned the Sajur, a tributary of the Euphrates, the Koweik, or river of Aleppo, the Orontes, or river of Antioch, the Litany, or river of Tyre, the Barada, or river of Damascus, and the Jordan, with its tributaries, the Jabbok and the Hieromax.
The Sajur rises from two principle sources on the southern flanks of Amanus, which, after running a short distance, unite a little to the east of Ain-Tab.

The course of the stream from the point of junction is south-east.

In this direction it flows in a somewhat tortuous channel between two ranges of hills for a distance of about 30 miles to Tel Khalid, a remarkable conical hill crowned by ruins.

Here it receives an important affluent--the Keraskat--from the west, and becomes suitable for boat navigation.

At the same time its course changes, and runs eastward for about 12 miles; after which the stream again inclines to the south, and keeping an E.S.E.direction for 14 or 15 miles, enters the Euphrates by five mouths in about lat.