» For the constellation, see Sagittarius. Sagittarii were auxiliary archers. Despite the longstanding contacts with, and several defeats by, Parthians and other Eastern nations for whom horse archery was tactically important, there's no definite mention of horse archers in Roman armies until the Notitia Dignitatum, after contact with the Huns. Horsed skirmishers with javelins, however, are often mentioned. Presumably, before that time, most regular Roman archers were infantry. The normal weapo… (More on Sagittarii)