| Nominal Species (n = 4) | Present allocation (n = 4) | Ref. |
|---|---|---|
| Tretomphalus clarus Cushman & Galliher, 1934 | Tretomphalus clarus | 3477 |
| Acarotrochus lobulatus Kawagata, 2005 | Acarotrochus lobulatus | 3477 |
| Discorbis mira Cushman, 1922 | Discorbis mira | 3477 |
| Rotalia rosacea d'Orbigny, 1826 | Discorbis rosacea | 3477 |