| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Cytophaga latercula | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga johnsonae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga heparina | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga flevensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga fermentans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga diffluens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga columnaris | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga arvensicola | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga aquatilis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga aprica | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytophaga agarovorans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cytobacillus suaedae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cystobacter violaceus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cystobacter minus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cystobacter minor | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cysteiniphilum marinum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cyclobacterium marinus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Curvibacter fontana | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Curtobacterium testaceum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Curtobacterium saperdae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Curtobacterium ginsengisoli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cupriavidus yeoncheonense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cupriavidus numazuensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cupravidus yeoncheonense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cryobacterium mesophilum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cronobacter zurichensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cronobacter pulveris | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Cronobacter helveticus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Croceivirga thetidis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Croceicoccus hydrothermalis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |