| Family | Genus | Species |
|---|---|---|
| Aglajidae | 16 | 94 |
| Alacuppidae | 2 | 3 |
| Antarctophilinidae | 2 | 8 |
| Bullidae | 1 | 18 |
| Cylichnidae | 4 | 23 |
| Diaphanidae | 4 | 8 |
| Gastropteridae | 3 | 25 |
| Haminoeidae | 12 | 93 |
| Laonidae | 2 | 6 |
| Mnestiidae | 1 | 6 |
| Newnesiidae | 2 | 3 |
| Philinidae | 7 | 75 |
| Philinoglossidae | 3 | 7 |
| Philinorbidae | 1 | 2 |
| Retusidae | 3 | 15 |
| Scaphandridae | 6 | 46 |
| Smaragdinellidae | 2 | 24 |