1. An eminent rhapsodist, or expositor of Homer, mentioned by Plato, in conjunction with Metrodorus of Lampsacus, and Stesimbrotus of Thasos. (Ion. p. 530d.; see the notes of Mülller and Nitzsch.)

2. A writer on Homer, quoted by Aristotle. (Poet. 25: this is one of the passages which Ritter considers as the additions of a later writer; he believes that Glaucon lived after Aristotle.)

3. Of Tarsus, also a writer on Homer, and apparently the head of a grammatical school. He wrote a work entitled . (Schol. ad Hom. Il. i. l; Athen. 11.480f.)

4. Of Teos, a writer on recitation. (Aristot. Rh. 3.1.)

Whether of the above writers, the first and second are the same as either the third or the fourth, or different from either, it is impossible to determine. The first is supposed by some to have-been an Athenian, because Plato does not mention his country. (Comp. Villoisin, Proleg. ad Hom. p. 25.)