| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Asplanchnopus hyalinus Harring 1913 | 0 | 8 | 0 |
| Asplanchnopus multiceps | 0 | 10 | 0 |
| Atrochidae | 3 | 7 | 0 |
| Atrochus | 1 | 3 | 0 |
| Atrochus tentaculatus Wierzejski 1893 | 0 | 5 | 0 |
| Balatro | 4 | 4 | 0 |
| Balatro aciliatus (Radkewitsch 1870) | 0 | 2 | 0 |
| Balatro anguiformis Issel 1904 | 0 | 2 | 0 |
| Balatro calvus Claparède 1867 | 0 | 3 | 0 |
| Balatro fridericiae Kunst 1954 | 0 | 1 | 0 |
| Bdelloidea | 4 | 373 | 0 |
| Beauchampia | 1 | 10 | 0 |
| Beauchampia crucigera | 0 | 12 | 0 |
| Beauchampiella | 1 | 3 | 0 |
| Beauchampiella eudactylota (Gosse 1886) | 0 | 10 | 0 |
