| Family | Genus | Species |
|---|---|---|
| Actinocephalidae | 4 | 5 |
| Cephaloidophoridae | 1 | 7 |
| Enterocystidae | 1 | 1 |
| Ganymedidae | 1 | 2 |
| Gregarinidae | 4 | 37 |
| Hirmocystidae | 1 | 5 |
| Lecudinidae | 12 | 54 |
| Leidyanidae | 2 | 6 |
| Monocystidae | 3 | 52 |
| Porosporidae | 2 | 6 |
| Siedleckiidae | 2 | 4 |
| Sphaerocystidae | 1 | 2 |
| Stenophoridae | 1 | 6 |
| Stylocephalidae | 4 | 10 |
| Uradiophoridae | 1 | 3 |
| Urosporidae | 3 | 9 |