a small lake in the N. of Italy, at the foot of the Alps, S. of the Lacus Larius, and nearly intermediate between its two arms. Pliny speaks of it as giving rise to, or rather receiving and transmitting, the river Lambrus, still called the Lambro.
There are now two small lakes, called the Lago di Pusiano,
and Lago d'Alserio,
which communicate with the Lambro,
and are separated only by a low marshy tract, so that they probably in the days of Pliny constituted one larger lake. (Plin. Nat. 3.19. s. 23
; Cluver. Ital.