Two new species of the millipede genus Metonomastus Attems, 1937 from the Balkan Peninsula (Diplopoda, Polydesmida, Paradoxosomatidae).

In addition to the eleven previously known species of the Mediterranean genus Metonomastus, two more species are described: M.petrovi sp. n., from the Rhodopi Mts. and Bunardzhik Hill in Bulgaria, and M.radjai sp. n., from the island of Mljet in Croatia. The relationships between the congeners and their distributions are briefly discussed. All 13 species of the genus are keyed.