The highest magistrates were the Ilviri (Duoviri) juri dicundo, who had charge, as their name implies, of all local jurisdiction, and presided over the assembly.
Next in dignity were the Ilviri aediles, who had charge of the roads and public buildings, the games and the corn-supply, and exercised police control throughout the town.
They appear to have been regarded as subordinate colleagues (collegae minores) of the Ilviri juri dicundo, and in some towns at least to have had the right to convene and preside over the comitia in the absence of the latter.
The quinquennales superseded the Ilviri or I Vviri juri dicundo every five years, and differed from them only in possessing, in addition to their other powers, those exercised in Rome before the time of Sulla by the censors.
The first class consists of those praefecti who were nominated as temporary delegates by the Ilviri, when through illness or compulsory absence they were unable to discharge the duties of their office.