| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Arcicella rosea | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcicella rigui | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcicella aurantiaca | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcicella aquatica T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcicella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Spirosomataceae | ||||
| Archangium violaceum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archangium minus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archangium gephyra T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archangium disciforme | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archangiaceae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archangium | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobus veneficus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobus sulfaticallidus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobus profundus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobus infectus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobus fulgidus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobaceae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobales | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Archaeoglobi | ||||
| Arcanobacterium wilhelmae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium pluranimalium | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium pinnipediorum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium phocisimile | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium phocae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium hippocoleae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium haemolyticum T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium canis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcanobacterium bovis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |