while he himself, after first drawing out his land forces and encompassing the headlands that extended into the sea, put out to battle with a hundred and eighty ships. He made his onset with great impetus and force, and utterly routed Ptolemy. Ptolemy himself, after his defeat, fled swiftly with eight ships only (for that small number were left from his whole fleet; of the rest, some had been destroyed in the sea-fight, and seventy had been captured, crews and all),
Edition :
Plutarch. Plutarch's Lives. with an English Translation by. Bernadotte Perrin. Cambridge, MA. Harvard University Press. London. William Heinemann Ltd. 1920. 9.
Remark :
date: The date is taken from the New Pauly.
http://referenceworks.brillonline.com/entries/brill-s-new-pauly/ptolemaeus-e1012900 long-term consequence: Demetrius captures many of Ptolemaeus' friends. This is mentioned in 16.3. Menelaus, who was blockaded in Salamis during the battle, surrendered the island to Demetrius soon after the battle. This is mentioned in 16.4.
After the battle Antigonus and Demetrius call themselves kings for the first time. This is mentioned in 18.1.