To Geminus Sevilius was committed the charge of maintaining the battle in the centre.
46.

Hannibal, at break of day, having sent before him the Baliares and other light-armed troops, crossed the river, and placed his troops in line of battle, as he had conveyed them across the river.

The Gallic and Spanish cavalry he placed in the left wing, opposite the Roman cavalry: the right wing was assigned to the Numidian cavalry, the centre of the line being strongly formed by the infantry, so that both extremities of it were composed of Africans, between which Gauls and Spaniards were placed.

One would suppose the Africans were for the most part Romans, they were so equipped with arms captured at the Trebia, and for the greater part at the Trasimenus.

The shields of the Gauls and Spaniards were of the same shape; their swords unequal and dissimilar.