Larissa (Turk. Yenishehr, new town), a town of European Turkey, in the vilayet and 75 m. S. S. W. of the city of Salonica; pop. about 20,000, more than half Turks, and the rest Greeks, Jews, etc. It is situated on a gently rising ground on the river Selembria (anc. Peneus), crossed here by a bridge of ten arches. It is the seat of a Greek archbishop and of a Turkish pasha, possesses some manufacturing establishments, and trades in the products of the country. - Larissa was an im.portant town in the ancient Grecian province of Thessaly, and celebrated for its bull fights. It is said to have been founded by Acrisius, king of Argos. In process of time its inhabitants attained considerable power, and became lords of the surrounding plain, and the town the capital of Pelasgiotis. In the Peloponne-sian war they supported Athens against Sparta. They were afterward reduced to subjection, in common with the other Thessalians, successively by the Macedonians, the Romans, and the Turks.