MONTE SAN GIULIANO, a town of Sicily, in the province of Trapani, is situated on a mountain 2184 feet high, 5 miles E.N.E. of Trapani. It has a large number of churches and convents, and an hospital. The mountain was in ancient times called Eryx, and had a temple of Venus on the top, founded, according to tradition, by Æneas. This is now replaced by a Saracen castle. The town of Eryx belonged to a Sicilian tribe called Elymi, but afterwards fell into the hands of the Carthaginians. Though taken by Pyrrhus in 378, it was regained by the Carthaginians, who abandoned it in the first Punic war. It does not seem to have been restored by the Romans. Pop. 6600.