in Ireland, placed by Ptolemy (2.2.4
) as the third river from the Boreum promontorium [p. 1.345]
], and as due north of the Sena.
As it is more certain that the Sena is the Shannon
than that the northern promontory is Malin Head,
the outlet of Loch Corrib
in Galway Bay
best suits the somewhat equivocal condition of the river Ausoba.