| Nominal Species (n = 5) | Present allocation (n = 5) | Ref. |
|---|---|---|
| Thecidea barretti Davidson, 1864 | Thecidellina barretti | 75097 |
| Thecidellina blochmanni Dall, 1920 | Thecidellina blochmanni | 89433 |
| Thecidellina congregata Cooper, 1954 | Thecidellina congregata | 89433 |
| Thecidellella japonica Hayasaka, 1938 | Thecidellina japonica | 89433 |
| Thecidellina minuta Cooper, 1981 | Minutella minuta | 89433 |