| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Arthrobacter rhizosphaerae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Arthrobacter ipis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Arthrobacter gengyunqii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Arthrobacter caoxuetaonis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aristaeella | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aristaeella lactis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aristaeella hokkaidonensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aridibaculum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aridibaculum aurantiacum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Arcobacter roscoffensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Arabiibacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Arabiibacter massiliensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aquitalea palustris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Aquiflexum gelatinilyticum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Antribacter soli | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Antarcticirhabdus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Antarcticirhabdus aurantiaca | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anianibacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anianibacter salinarum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anianabacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anianabacter salinae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anatilimnocola floriformis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaerosoma | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaerosoma tenue | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis iheyensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Alkalimarinus coralli | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Algicella | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Algicella marina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Alcanivorax xiamenensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Alcanivorax quisquiliarum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |