| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Cochliopidae | Littoridina | 95 |
| 2 | Cochliopidae | Heleobia | 70 |
| 3 | Cochliopidae | Tryonia | 15 |
| 4 | Cochliopidae | Cochliopa | 11 |
| 5 | Cochliopidae | Pyrgophorus | 5 |
| 6 | Cochliopidae | Aroapyrgus | 3 |
| 7 | Cochliopidae | Cochliopina | 3 |
| 8 | Cochliopidae | Semisalsa | 2 |
| 9 | Cochliopidae | Balconorbis | 2 |