Opisotretidae
Opisotretidae is a family of millipedes belonging to the order Polydesmida.
Genera:
- Carlotretus Hoffman, 1980
- Corypholophus Attems, 1938
- Martensodesmus Golovatch, 1987
- Nepalotretus Golovatch, 1987
- Opisotretus Attems, 1907
- Opisthoporodesmus Silvestri, 1899
- Retrodesmus Chamberlin, 1945
- Solaenaulus Attems, 1940