the Eulaus of the Greeks; a river of Susiana. It was probably the eastern branch of the Choasper (Kerkhan), which divided into two branches some 20 miles above the city of Susa. Hence Daniel (8:2,16) speaks of standing "between the banks of Ulai", i.e., between the two streams of the divided river.
Daniel sees a ram standing eastward of the river-basin of the ulai, having two horns, of which one is higher than the other.
But there are a few, an apple or two by the banks of ulai, which we may pluck as the night approaches.
It seems now to have been proved that the ulai was merely a branch of the Choaspes or Kerkhah.