| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Chlamydophila pecorum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chlamydophila felis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chlamydophila caviae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chlamydophila abortus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chlamydia poikilotherma | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chitinophaga rhizophila | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chitinophaga hostae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chioneia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chioneia hiemis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chioneia frigida T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chioneia brumae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chioneia algoris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chimaereicella | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chimaereicella boritolerans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chimaereicella alkaliphila T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chelatobacter | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chelatobacter heintzii T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia violens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia rubra | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia rosea | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia purpurogena | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia poonensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia olivacea | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia ochracea | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia nigra | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia minutisclerotica | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia kunmingensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia fumigata | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Chainia flava | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |