| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Cytobacillus spongiae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Cytobacillus pseudoceanisediminis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Cytobacillus citreus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Cyclonatronum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Cyclonatronum proteinivorum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Curtanaerobium | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Curtanaerobium respiraculi | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Croceibacterium selenioxidans | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Crassaminicella indica | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium yonathiae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium pygosceleis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium pseudogenitalium | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium meridianum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium meitnerae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium marquesiae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium marambiense | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium macclintockiae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium lehmanniae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium hesseae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium genitalium | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium evansiae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium curieae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Corynebacterium antarcticum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Comamonas antarctica | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Collibacillus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Collibacillus ludicampi | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Clostridium folliculivorans | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Citrobacter telavivum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Citrobacter meridianamericanus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Chryseobacterium turcicum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago |