| Family | Genus | Species |
|---|---|---|
| Gromiidae | 1 | 19 |
| Haplosporidiidae | 3 | 53 |
| Hyalodiscidae | 1 | 2 |
| Leptophryidae | 10 | 23 |
| Marteiliidae | 5 | 55 |
| Mikrocytiidae | 2 | 17 |
| Paradiniidae | 1 | 2 |
| Phagomyxidae | 3 | 8 |
| Placopodidae | 1 | 3 |
| Plasmodiophoridae | 10 | 31 |
| Pseudodifflugiidae | 2 | 8 |
| Sericomyxidae | 1 | 2 |
| Urosporidiidae | 1 | 4 |
| Vampyrellidae | 2 | 8 |