| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Rissoidae | Alvania | 1636 |
| 2 | Rissoidae | Rissoa | 1030 |
| 3 | Rissoidae | Rissoininae | 647 |
| 4 | Rissoidae | Manzonia | 319 |
| 5 | Rissoidae | Cingula | 169 |
| 6 | Rissoidae | Pusillina | 156 |
| 7 | Rissoidae | Crisilla | 141 |
| 8 | Rissoidae | Onoba | 118 |
| 9 | Rissoidae | Setia | 98 |
| 10 | Rissoidae | Parashiela | 60 |
| 11 | Rissoidae | Benthonellania | 40 |
| 12 | Rissoidae | Peringiella | 35 |
| 13 | Rissoidae | Powellisetia | 32 |
| 14 | Rissoidae | Obtusella | 31 |
| 15 | Rissoidae | Punctulum | 30 |
| 16 | Rissoidae | Botryphallus | 25 |
| 17 | Rissoidae | Plagyostila | 8 |
| 18 | Rissoidae | Porosalvania | 7 |
| 19 | Rissoidae | Gofasia | 6 |
| 20 | Rissoidae | Simulamerelina | 6 |
| 21 | Rissoidae | Benthonella | 6 |
| 22 | Rissoidae | Lucidestea | 3 |
| 23 | Rissoidae | Vitricithna | 2 |
| 24 | Rissoidae | Voorwindia | 2 |
| 25 | Rissoidae | Boreocingula | 2 |
| 26 | Rissoidae | Omanimerelina | 1 |
| 27 | Rissoidae | Madeiranzonia | 1 |
| 28 | Rissoidae | Quarkia | 1 |
| 29 | Rissoidae | Frigidoalvania | 1 |