RUSGU´NIA(Itin. Ant.;Ῥουστόνιον, Ptol. 4.2.6), a town of Mauretania, and a colonia, which lay 15 M. P. to the E. of Icosium. Its ruins have been found near Cape Matafuor Temendfuz(Barth, Wanderungen, p. 55). For an account of these, see Ausland, 1837, No. 144. [E.B.J]