| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Aeromonas hydrophila subsp. anaerogenes | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aeromonas finlandiensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aeromonas culicicola | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aeromonas aquariorum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aeromicrobium stalagmiti | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aerococcus sanguicola | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aequorivita iocasae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aegyptianella | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aegyptianella pullorum T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aegicerativicinus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aegicerativicinus sediminis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aedoeadaptatus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Aedoeadaptatus acetigenes T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Advenella mandrilli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Adlercreutzia rubneri | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Adlercreutzia hattorii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Adlercreutzia equolifaciens subsp. celata | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Adhaeribacter terrigena | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Adhaeretor | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Adhaeretor mobilis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Acuticoccus mangrovi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Acuticoccus kalidii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actirhodobacter | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actirhodobacter atriluteus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actinotalea suaedae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actinotalea soli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actinosporangium | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actinosporangium vitaminophilum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actinosporangium violaceus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Actinosporangium violaceum T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |