| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Radix | auricularia | 74 |
| 2 | Radix | labiata | 51 |
| 3 | Radix | balthica | 41 |
| 4 | Radix | phillipsi | 37 |
| 5 | Radix | natalensis | 25 |
| 6 | Radix | plicatula | 14 |
| 7 | Radix | rubiginosa | 13 |
| 8 | Radix | onychia | 9 |
| 9 | Radix | relicta | 4 |
| 10 | Radix | peregra | 3 |
| 11 | Radix | cumingii | 2 |
| 12 | Radix | outatiana | 2 |
| 13 | Radix | vinosa | 1 |
| 14 | Radix | lagotis | 1 |
| 15 | Radix | brevispina | 1 |