Xenophon Hellenica 4.2.16

[16]
  And now I will state the numbers on either side. As for hoplites, there had gathered together of the Lacedaemonians about six thousand, of the Eleans, ¹ Triphylians, Acrorians, and Lasionians almost three thousand, and of the Sicyonians one thousand five hundred, while of the Epidaurians, Troezenians, Hermionians, and Halians there were not less than three thousand. Besides these there were horsemen of the Lacedaemonians to the number of about seven hundred, Cretan bowmen who accompanied the army, about three hundred, and, further, slingers of the Marganians, Letrinians, and Amphidolians, not less than four hundred. The Phliasians, however, would not join them; for they said that they were keeping a holy truce. ² This, then, was the force on the side of the Lacedaemonians.