| Nominal Species (n = 5) | Present allocation (n = 4) | Ref. |
|---|---|---|
| Paracucumis antarctica Mortensen, 1925 | Paracucumis turricata | 85 |
| Paracucumaria deridderae Massin, 1993 | Paracucumaria deridderae | 485 |
| Crucella hystrix Gutt, 1990 | Crucella hystrix | 356 |
| Thyone scotiae Vaney, 1906 | Crucella scotiae | 3477 |
| Thyone turricata Vaney, 1906 | Paracucumis turricata | 3477 |