3. Son of Calliades, was appointed with four colleagues to the command of the second body of Athenian forces sent against Perdiccas and the revolted Chalcidians, B. C. 432, and was slain in the battle against Aristeus near Potidaea. (Thuc. 1.61-63; Diod. 12.37.) This is probably the same Callias who is mentioned as a pupil of Zeno the Eleatic, from whose instructions, purchased for 100 minae, he is said to have derived much real advantage, σοφὸς καὶ ἐλλόγιμος γέγονεν. (Pseudo-Plat. Alcib. i. p. 119; Buttmann, ad loc.)