| Nominal Species (n = 23) | Present allocation (n = 21) | Ref. |
|---|---|---|
| Dumus areniferus Brewin, 1952 | Dumus areniferus | 19 |
| Ritterella asymmetrica Millar, 1966 | Ritterella asymmetrica | 19 |
| Ritterella chetvergovi Sanamyan & Sanamyan, 2002 | Ritterella chetvergovi | 19 |
| Ritterella circularis Monniot, 1987 | Ritterella circularis | 19 |
| Ritterella compacta Kott, 1992 | Ritterella compacta | 19 |
| Ritterella cornuta Kott, 1992 | Ritterella cornuta | 19 |
| Ritterella dispar Kott, 1957 | Ritterella dispar | 19 |
| Ritterella folium Monniot & Monniot, 1991 | Ritterella folium | 19 |
| Ritterella glareosa Monniot, 1975 | Ritterella glareosa | 19 |
| Ritterella gurjanovae Beniaminson, 1974 | Ritterella iturupica | 19 |
| Ritterella herdmania Kott, 1957 | Ritterella pedunculata | 7398 |
| Ritterella iturupica Beniaminson, 1974 | Ritterella iturupica | 19 |
| Ritterella mirifica Monniot & Monniot, 1983 | Ritterella mirifica | 19 |
| Ritterella multistigmata Kott, 1992 | Ritterella multistigmata | 19 |
| Ritterella papillata Kott, 1992 | Ritterella papillata | 19 |
| Psammaplidium pedunculatum Herdman, 1891 | Ritterella pedunculata | 1456 |
| Ritterella rete Monniot & Monniot, 1991 | Ritterella rete | 19 |
| Ritterella rubra Abbott & Trason,1968 | Ritterella rubra | 19 |
| Ritterella solida Monniot, 2001 | Ritterella solida | 19 |
| Ritterella tamarae Sanamyan, 1998 | Ritterella tamarae | 19 |
| Ritterella tokioka Kott, 1992 | Ritterella tokioka | 19 |
| Ritterella vestita Millar, 1960 | Ritterella vestita | 19 |
| Ritterella yamazii Tokioka, 1949 | Ritterella yamazii | 19 |