History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
And while the Peloponnesians in Attica and their allies were building this fort, those in the Peloponnesus were at the same time despatching the hoplites in merchant-ships to Sicily, the Lacedaemonians having picked out the best of the Helots and Neodamodes,[*](cf. v. xxxiv. 1. These were clans of new citizens made up of Helots emancipated for service in war.) of both together about six hundred hoplites, with Eccritus the Spartan as commander, and the Boeotians having selected three hundred hoplites, in command of whom were Xenon and Nicon, both Thebans, and Hegesander, a Thespian.
Now these set out in the first contingent from Taenarus in Laconia and made for the open sea; and following them, but not long afterwards, the Corinthians sent out five hundred hoplites, some from Corinth itself, others being Arcadians whom they had taken on for hire, appointing in command of them Alexarchus, a Corinthian. The Sicyonians also despatched at the same time as the Corinthians two hundred hoplites under the command of Sargeus, a Sicyonian.
Meanwhile the twenty-five Corinthian ships, which had been manned during the winter, lay opposite the twenty Athenian ships at Naupactus, until their hoplites in the merchant-ships had got well on their voyage from the Peloponnesus; it was for this purpose, indeed, that they had been manned in the first place—that the Athenians might not give their attention so much to the merchant-ships as to the triremes.