(Πραξιφάνης).
1. A Peripatetic philosopher, was a native either of Mytilene (Clem. Alex. i. p. 365, ed. Potter), or of Rhodes (Strab. xiv. p.655). He lived in the time of Demetrius Poliorcetes and Ptolemy Lagi, and was a pupil of Theophrastus, about B. C. 322 (Proclus, i. in Timaeum ; Tzetzes, ad Hesiod. Op. et Dies, 1.) He subsequently opened a school himself, in which Epicurus is said to have been one of his pupils (Diog. Laet. 10.13). Praxiphanes paid especial attention to grammatical studies, and is hence named along with Aristotle as the founder and creator of the science of grammar (Clemens Alex. l.c.; Bekker, Anecdot. ii. p. 229, where Πραξιφάνους should be read instead of (Ἐπιφάνους).