3. One of Galen's contemporaries at Rome in the second century after Christ, who was a pupil of Quintus and Marinus, and had an extensive and lucrative practice. Galen gives an account (De Praenot. ad Posth. 100.3. vol. xiv. p. 613) of their differing in opinion as to the probable result of the illness of the philosopher Eudemus. (Le Clerc, Hist. de la Méd. ; Fabricius, Biblioth. Gr. vol. xiii. p. 63, ed. vet.; Haller, Biblioth. Medic. Pract. tom. i.)