[German version]

Subaltern official (officialis) in the administration of an  arca , i.e. a public fund in the responsibility of a higher official (Cod. Theod. 11,28,6) or with a special purpose (see Dig. 50,4,1,2), but especially the imperial treasury (Cod. Just. 10,72,13). The duty of an arcarius (Dig. 40,5,41,17; Cod. Just. 10,72,15) was probably performed by a  scriba in Republican times. Both freemen and slaves were arcarii in the administration of towns, provinces, the imperial court, in colleges and corporations and in the military as administrators of the soldiers'  peculium…