a lake between Cumae and the promontory Misenum, now il Lago della Collucia (Cluverius). Some confound it with the Lacus Lucrinus, and others with the Lacus Aventinus. But Strabo and Pliny distinguish them. The former takes it to be an effusion, exundation, or washes of the sea, and therefore called by Lycophron, Ἀγκερίας χώρας.—Also a lake of Epirus, through which the Acheron runs.—There is also an Acherufa, a peninsula of Bithynia on the Euxine, near Heraclea; and a cave there of the same name, through which Hercules is fabled to have descended to hell to drag forth Cerberus.