| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Achromatium volutans | 0 | 1 | 0 |
| Acineria Dujardin 1841 | 0 | 1 | 0 |
| Acineria incurvata Dujardin 1841 | 0 | 1 | 0 |
| Acineta | 0 | 1 | 0 |
| Acineta tuberosa Ehrenberg 1834 | 0 | 1 | 0 |
| Acinetactis Stokes 1886 | 0 | 1 | 0 |
| Acinetidae | 0 | 1 | 0 |
| Acinetobacter | 0 | 1 | 0 |
| Acinetopsis Robin 1879 | 0 | 1 | 0 |
| Acinonyx jubatus (Schreber 1775) (cheetah) | 0 | 1 | 0 |
| Aconoidasida | 0 | 1 | 0 |
| Acontium | 0 | 1 | 0 |
| Acrasidae | 0 | 1 | 0 |
| Acrasis | 0 | 1 | 0 |
| Acremonium | 0 | 1 | 0 |
