Naulachus (Civil War of Cæsar and Pompey).

Fought September 3, B.C. 36, between the Pompeian fleet of 300 ships, under Sextus Pompeius, and the fleet of the Triumvirs, of equal strength, under Agrippa. The action was severely contested, but in the end Agrippa was victorious, and Pompeius fled with 17 vessels only.