That is, Fear or Terror, was, together with Pallor or Paleness, a companion of Mars among the Romans. Their worship was believed to have been instituted by Tullus Hostilius during a plague, or at a critical moment in a battle. Their worship was attended to by Salii, called Pallorii and Pavorii. (Liv. i. 27; Aug. De Civ. Dei, iv. 15, 23; Stat. Theb. iii. 425; Val. Flacc. iii. 89 ; Claudian. in Rufin. i. 344.)