| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Pholadidae | Cyrtopleura | 277 |
| 2 | Pholadidae | Barnea | 220 |
| 3 | Pholadidae | Pholas | 181 |
| 4 | Pholadidae | Xylophaga | 81 |
| 5 | Pholadidae | Martesia | 80 |
| 6 | Pholadidae | Zirfaea | 63 |
| 7 | Pholadidae | Parapholas | 56 |
| 8 | Pholadidae | Penitella | 51 |
| 9 | Pholadidae | Jouannetia | 19 |
| 10 | Pholadidae | Pholadidea | 14 |
| 11 | Pholadidae | Chaceia | 14 |
| 12 | Pholadidae | Netastoma | 4 |
| 13 | Pholadidae | Nipponopholas | 1 |