| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Tivela | stultorum | 140 |
| 2 | Tivela | mactroides | 95 |
| 3 | Tivela | tripla | 81 |
| 4 | Tivela | rejecta | 48 |
| 5 | Tivela | polita | 27 |
| 6 | Tivela | byronensis | 25 |
| 7 | Tivela | transversa | 24 |
| 8 | Tivela | compressa | 19 |
| 9 | Tivela | natalensis | 16 |
| 10 | Tivela | isabelleana | 15 |
| 11 | Tivela | dunkeri | 14 |
| 12 | Tivela | ventricosa | 12 |
| 13 | Tivela | planulata | 11 |
| 14 | Tivela | lamyi | 3 |
| 15 | Tivela | bicolor | 3 |
| 16 | Tivela | trigonella | 3 |
| 17 | Tivela | zonaria | 2 |
| 18 | Tivela | delessertii | 1 |
| 19 | Tivela | hindsii | 1 |
| 20 | Tivela | species | 1 |
| 21 | Tivela | mulawana | 1 |