Ae'tius, Sica'mius（Σικάμιος ὁ Ἀέτιος), sometimes called Aetius Sicanius or Siculus.
Περὶ Μελαγχολιάς, De Melancholia. His date is uncertain, but, if he be not the same person as Aetius of Amida, he must have lived after him, as his treatise corresponds exactly with part of the latter's great medical work (tetrab. ii. serm. 2.9-11, p. 250, &c.): it is compiled from Galen, Rufus, Posidonius, and Marcellus.