(GALLUS?), a Roman jurist, from whose liber responsorum two fragments concerning tutors are preserved in the Digest. In the Florentine Index he is named Gallus Aquila, probably from an error of the scribe in reading Γαλλουον for Ιουλιον. This has occasioned Julius Aquila to be confounded with Aquillius Gallus. His date is uncertain, though he probably lived under or before the reign of Septimius Severus, A. D. 193-8; for in Dig. 26. tit. 7, s. 34 he gives an opinion upon a question which seems to have been first settled by Severus. (Dig. 27. tit. 3. s. 1.3.) By most of the historians of Roman law he is referred to a later period. He may possibly be the same person with Lucius Julius Aquila, who wrote de Etrusca disciplina, or with that Aquila who, under Septimius Severus, was praefect of Egypt, and became remarkable by his persecution of the Christians. (Majansius, Comm. ad 30 Juriscon. Fragm. vol. ii. p. 288; Otto, in Praef. Thes. vol. i. p. 13; Zimmern, Röm. Rechts-Geschichte, vol. 1.103.)