4. The physician mentioned by Cicero (Ep. ad Famil. 16.20) as attending on his freedman Tiro, B. C. 46.

One of the above (perhaps the third) is quoted by Marbodus (De Gemmis), and called by him " maximus auctor." (See Fabric. Bibl. Gr. vol. xiii. p. 337, ed. vet.)