ARHUSEN, a diocese in North Jutland, in Denmark, to the south of Wilburg, about 60 miles in length and 30 in breadth. It contains two capital cities, called Arhusen and Rander; besides several market towns of less note, and upwards of 300 villages. Arhusen, one of the capitals, is advantageously situated on the coast of the Baltic sea, at the mouth of the river Guda, which runs through it; and it is surrounded with forests full of game. E. Long. 10. 0. N. Lat. 56. 10.