(Πανθοίδος), a dialectic philosopher about B. C. 270, who wrote a treatise, πεοὶ ἀμφιβολιῶν,, which was attacked by Chrysippus. He was the preceptor of Lycon, the peripatetic philosopher. (D. L. 5.68, 7.193.)
[W.M.G]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890