EUPHRONIUS, a distinguished Athenian potter and vase painter of the end of the sixth and beginning of the fifth century B.C. (see GREEK ART and CERAMICS). Several vases with his sig nature are preserved. The name of the artist who decorated the vases which Euphronius signed as potter is not known, but he has been named the Panaitios painter from the inscriptions "fair Pan aitios" which occur on his works. Among the best known vases decorated by Euphronius as painter are the crater with Heracles and Antaeus (Louvre) and the Kylix with Heracles and Geryon (in Munich). (Cf. J. D. Beazley, Attische Vasenmaler, pp. 58 ff. and 165 ff., 1925.)