| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Oerskovia jenensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oerskovia enterophila | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oerskovia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oenococcus oeni T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oenococcus kitaharae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oenococcus alcoholitolerans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oenococcus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Odoribacter splanchnicus T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Odoribacter laneus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Odoribacter denticanis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Odoribacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Octadecabacter temperatus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Octadecabacter ponticola | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Octadecabacter ascidiaceicola | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Octadecabacter arcticus T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Octadecabacter antarcticus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Octadecabacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ochrobactrum teleogrylli | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ochrobactrum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanotoga teriensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanotoga | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum vagum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum sanctuarii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum multiglobuliferum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum maris | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum linum T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum beijerinckii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanospirillum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanococcus atlanticus T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Oceanococcus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |