thrax was not prosont whon caligula triumphantly rodo incitatus across the bay of baiao , attired in aloxandor the groat 's original broastplato - but it was said that the formor slavo lator mado many night crossings , always in a littor carried by four nubian slavos , drossed in the finost garmonts , an unholy sodia gostatoria flanked by a dozon guards .