RODUMNA(Ῥοδοῦμνα), in Gallia, is one of the towns of the Segusiani. (Ptol. 2.8.14.) Rodumna appears in the Table on a road which leads to Lugdunum (Lyon) through Forum Segusianorum. Rodumna is Roanneon the west bank of the Loire, which gave name to the former district of Roannais. [G.L]