| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Aquariibacter albus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aquabacterium terrae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Apilactobacillus zhangqiuensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Apilactobacillus xinyiensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Apilactobacillus kosoi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Apilactobacillus bombintestini | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Apilactobacillus apisilvae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Antrihabitans stalagmiti | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anthropogastromicrobium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anthropogastromicrobium aceti | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anoxybacillus pushchinensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anoxybacillus karvacharensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anoxabacillus pushinensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Angiococcus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Angiococcus disciformis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aneurinibacillus aneurinolyticus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ancylobacter gelatini | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ancalochloris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ancalochloris perfilievii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anatilimnocola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anatilimnocola aggregata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaplasma phagocytophila | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaplasma ovis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaplasma marginale | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaplasma centrale | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaplasma caudatum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaerovibrio lipolytica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaerovibrio glycerini | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaerovibrio burkinabensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaerostipes hominis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |