2. M.Castricius, a Roman merchant in Asia, who received a public funeral from the inhabitants of Smyrna. (Cic. pro Flacc. 23, 31.) He is probably the same person as the M. Castricius mentioned in the Verrine Orations (3.30), but must be different from the one spoken of in B. C. 44 (ad Att. 12.28), as the speech for Flaccus, in which the death of the former is recorded, was delivered as early as B. C. 59.