Of Mytilene, a Greek belonging to the suite of Alexander the Great. He was appointed court-marshal or introducer of strangers to the king, an office borrowed from the Persian court. He wrote a history of Alexander in ten books, dealing mainly with the private life of the king. The fragments are chiefly preserved in Athenaeus.
See Scriptores Rerum Alexandri (pp. 114-120) in the Didot edition of Arrian.