Orthagoras

(Ὀρθαγόρας).

1. Of Thebes, mentioned by Socrates in the Protagoras of Plato (p. 318c.), as one of the most celebrated flute players of his day, and by Athenaeus as one of the instructors of Epaminondas in flute-playing. (Ath. iv. p. 184e.)

2. A geographer, whose age is unknown, but whose work on India (Ἰνδοὶ λόγοι) is quoted both by Aelian (Ael. NA 16.35; 17.6) and by Strabo (xvi. p.766). His statements in that work, respecting the Red Sea, are quoted by Philostratus (Vit. Apollon. 3.53; Phot. Biblioth. cod. ccxli. p. 327b. 10, Bekker). [P.S]