Vitae philosophorum
Diogenes Laertius
Diogenes Laertius. Hicks, R. D., editor. Cambridge, MA.: Harvard University Press; London: William Heinemann Ltd., 1925.
The founders of these schools were: of the Old Academy, Plato; of the Middle Academy, Arcesilaus; of the New Academy, Lacydes; of the Cyrenaic, Aristippus of Cyrene; of the Elian, Phaedo of Elis; of the Megarian, Euclides of Megara; of the Cynic, Antisthenes of Athens; of the Eretrian, Menedemus
Hippobotus in his work On Philosophical Sects declares that there are nine sects or schools, and gives them in this order: (1) Megarian, (2) Eretrian, (3) Cyrenaic, (4) Epicurean, (5) Annicerean,[*](The separation of the followers of Anniceris from the Cyrenaic school was made by the author whom Clement of Alexandria followed in ii. 130. This author may have been Antiochus of Ascalon. Strabo x. 837 s.f. supports the same view: Ἀννίκερις ὁ δοκῶν ἐπανορθῶσαι τὴν Κυρηναϊκὴν αἵρεσιν, καὶ παραγαγεῖν ἀντʼ αὐτῆς τὴν Ἀννικερείαν.), (6) Theodorean, (7) Zenonian or Stoic, (8) Old Academic, (9) Peripatetic.