2. One of Cassander's generals, whom he sent with a portion of his forces to keep Polysperchon employed in Perrhaebia, while he himself made his way to Macedon to take vengeance on Olympias, B. C. 317. Calas by bribes induced many of his opponent's soldiers to desert him, and blockaded Polysperchon himself in Naxium, a town of Perrhaebia, whence, on hearing of the death of Olympias, he escaped with a few attendants, and took refuge together with Aeacides in Aetolia, B. C. 316. (Diod. 19.35, 36, 52.)