| Phylum: | MOLLUSCA | |
| Classe: | GASTROPODA | Cuvier, 1797 |
| Ordine: | MESOGASTROPODA | Thiele, 1925 |
| Superfamiglia: | RISSOIDEA | Gray, 1847 |
| Hydrobiidae | Troschel, 1857 | Truncatellidae | Gray, 1840 |
| Tornidae | Sacco, 1896 | Vitrinellidae | Bush, 1899 |
| Trachysmatidae | Thiele, 1925 | Skeneopsidae | Iredale, 1915 |
| Omalogyridae | Sars G.O., 1878 | Rissoellidae | Gray M.E., 1850 |
| Cingulopsidae | Fretter & Patil, 1958 | Barleeiidae | Gray, 1857 |
| Rissoidae | Gray, 1847 | Adeorbidae | Monterosato, 1884 |
| Assimineidae | Adams H. & A., 1856 | Iravadiidae | Thiele, 1928 |