Diplomaragnidae
Diplomaragnidae is a family of millipedes belonging to the order Chordeumatida. These millipedes range from 9 mm to 24 mm in length and are found from the Volga River region in Russia to Japan and Taiwan. All known adult females in this family have 32 segments rather than the 30 segments typically found in this order; in most species, adult males also have 32 segments, but in some species, adult males have only 30 segments.
Genera
Genera:Alineuma Mikhaljova, 2021- Altajosoma Gulička, 1972Ancestreuma Golovatch, 1977Asiatyla Mikhaljova, 1999Diplomaragna Attems, 1907Koreagna Mikhaljova & Lim, 2008
- Litovkia Mikhaljova, 2021Maritimosoma Mikhaljova, 1999Niponiothauma Verhoeff, 1942Orientyla Mikhaljova, 1999Pacifiosoma Mikhaljova, 1999Pterygostegia Miyosi, 1958Sakhalineuma Golovatch, 1976Shearia Mikhaljova, 1999Syntelopodeuma Verhoeff, 1914Tokyosoma Verhoeff, 1929