At the first dawn, the signal of battle being displayed, the consul formed his troops with a narrow front, adapted to the nature and the straitness of the ground.

When the king saw the enemy's standards in motion, he likewise drew out his forces.

He placed in the van, before the rampart, a part of his light infantry; and behind them, as a support, close to the fortifications, the main strength of his Macedonians, whom they call Sarissophori.

On the left wing of these, at the foot of the mountain, he posted a body of javelin-bearers, archers, and slingers; that from the higher ground they might annoy the naked flank of the enemy: and on the right of the Macedonians, to the extremity of the works, where the deep morasses and quicksands, stretching thence to the sea, render the place impassable, the elephants with their usual guard; in the rear of them, the cavalry; and then, with a moderate interval between, the rest of his forces as a second line.
The Macedonians, posted before the rampart, for some time easily withstood the efforts which the Romans made every where to force a passage; for they received great assistance from those who poured down from the higher ground a shower of leaden balls from their slings, and of arrows, and javelins, all together.

But afterwards, the enemy pressing on with greater and now irresistible force, they were obliged to give ground, and, filing off from the rear, retire within the fortification.