| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Clostridium amylolyticum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium aminophilum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium amazonense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium algoriphilum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium algifaecis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium algidicarnis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium akagii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium aestuarii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium aciditolerans | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium acidisoli | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium acetobutylicum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium acetireducens | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium aceticum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridium | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridioides mangenotii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridioides difficile T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridioides | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridiisalibacter paucivorans T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clostridiisalibacter | ||||
| Cloacibacterium rupense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacterium normanense T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacterium haliotis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacterium caeni | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacterium | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacillus porcorum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacillus evryensis T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cloacibacillus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clavibacter tessellarius | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clavibacter sepedonicus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Clavibacter nebraskensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |