The reward fixed upon for the informer was a tenth part of the value of the lands so discovered.

Cneius Servilius, the city praetor, was also charged with seeing that the Campanians dwelt where they were allowed, according to the decree of the senate, and to punish such as dwelt anywhere else.
The same summer, Mago, son of Amilcar, setting out from the lesser of the Balearian islands, where he had wintered, having put on board his fleet a chosen body of young men, conveyed over into Italy twelve thousand foot, and about two thousand horse, with about thirty ships of war, and a great number of transports.

By the suddenness of his arrival he took Genoa, as there were no troops employed in protecting the sea-coast.

Thence he brought his fleet to shore, on the coast of the Alpine Ligurians, to see if he could create any commotion there.
The Ingaunians, a tribe of the Ligurians, were at that juncture engaged in war with the Epanterians, a people inhabiting the mountains.

The Carthaginian, therefore, having deposited his plunder at Savo, an Alpine town, left ten ships of war for its protection.