| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Lutraria | rhynchaena | 155 |
| 2 | Lutraria | species | 45 |
| 3 | Lutraria | steynlussii | 16 |
| 4 | Lutraria | oblonga | 11 |
| 5 | Lutraria | angustior | 10 |
| 6 | Lutraria | senegalensis | 10 |
| 7 | Lutraria | capensis | 8 |
| 8 | Lutraria | cumingiana | 7 |
| 9 | Lutraria | curta | 6 |
| 10 | Lutraria | sieboldii | 5 |
| 11 | Lutraria | magna | 3 |
| 12 | Lutraria | deshayesii | 2 |
| 13 | Lutraria | maxima | 2 |
| 14 | Lutraria | impar | 1 |
| 15 | Lutraria | australis | 1 |
| 16 | Lutraria | lucida | 1 |