It is  long and its basin size is . The old branch of the Žitava, Stará Žitava, branches off near Dolný Ohaj and flows into the old branch of the Nitra near Martovce.
It is extensive, and its basin size is . The old branch of the Žitava, Stará Žitava, splits off near Dolný Ohaj and merges with the old branch of the Nitra near Martovce.