in Ancient Geography, one of the small streams on which the city of Athens stood. It was not so large and important as the Cephissus, and differed from it in being wholly dried up under the scorching heat of summer, which the Cephissus does not seem to have ever been. It consisted of two principal streams, the larger of which rose on the northern slope of Hymettus, and flowing towards the city was there joined by the smaller, which, under the name of the Eridanus, rose on the western slope of Hymettus at a place now called Syrini. The combined stream then traversed the southern portion of the city, and, in winter, or after heavy rains, discharged itself into the Bay of Phalerum. In summer its channel now, as in ancient times, is quite dried up.