Lissus, A citie of Dalmatia. It is now called Alexium.
Lewis and Short: Latin dictionary
Lissus, i, f., and Lissum, i, n., = *lisso/s, a city in southern Dalmatia, on the borders of Macedonia, now Alessio, Caes. B. C. 3, 26, 4; Plin. 3, 22, 26, 144; Liv. 43, 20; 44, 30.