(the ancient Arseneria), a seaport town of Algiers, province of Oran, on a bay of the same name. Long. 0. 16. 58. W. Lat. 35. 51. 39. N. The modern town is ill-built and inconsiderable, but has many fine Roman remains, and vast cisterns of the ancient city. About 5 miles distant there are numerous salt-pits.