The heavy infantry of the maniples were supported by a number of light infantry (Latin: "velites") and cavalry (Latin: "equites") troops, typically 300 horsemen per manipular legion. The cavalry was drawn primarily from the richest class of equestrians, but additional cavalry and light infantry were drawn at times from the socii and Latini of the Italian mainland. The "equites" were still drawn from the wealthier classes in Roman society. There was an additional class of troops (Latin: "accensi", also "adscripticii" and later "supernumerarii") who followed the army without specific martial roles and were deployed to the rear of the "triarii". Their role in accompanying the army was primarily to supply any vacancies that might occur in the maniples, but they also seem to have acted occasionally as orderlies to the officers.