| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Volvulella | fortis | 22 |
| 2 | Volvulella | ovalina | 18 |
| 3 | Volvulella | acuminata | 16 |
| 4 | Volvulella | kinokuniana | 14 |
| 5 | Volvulella | species | 14 |
| 6 | Volvulella | eburnea | 7 |
| 7 | Volvulella | texasiana | 2 |
| 8 | Volvulella | cylindrica | 2 |
| 9 | Volvulella | tenuissima | 1 |
| 10 | Volvulella | multistriata | 1 |
| 11 | Volvulella | mutabilis | 1 |
| 12 | Volvulella | onoae | 1 |
| 13 | Volvulella | panamica | 1 |
| 14 | Volvulella | paupercula | 1 |
| 15 | Volvulella | persimilis | 1 |
| 16 | Volvulella | rostrata | 1 |