| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Crassaminicella profunda T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Crassaminicella | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Coxiella burnetii T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Coxiella | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Couchioplanes caeruleus subsp. caeruleus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Couchioplanes caeruleus subsp. azureus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Couchioplanes caeruleus T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Couchioplanes | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Costertonia aggregata T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Costertonia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cosenzaea myxofaciens T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Cosenzaea | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium yudongzhengii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium xerosis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium vitaeruminis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium variabile | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium uterequi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium uropygiale | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium urogenitale | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium ureicelerivorans | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium urealyticum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium ulceribovis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium ulcerans | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium tuscaniense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium tuberculostearicum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium trachiae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium timonense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium thomssenii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium testudinoris | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Corynebacterium terpenotabidum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |