Clūsĭus, ii, m. [cludo = claudo],
a cognomen of Janus , whose temple was closed in peace (opp. Patulcius, when open during war), Ov. F. 1, 130; cf. Clusivius, Macr. S. 1, 9.
CLU´SIUS(Κλούσιος), a river of Gallia Transpadana, now called the Chiese, whichrises in the Rhaetian...
Dictionary of Greek and Roman Geography