| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Oceanospirillum hiroshimense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanospirillum commune | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanospirillum beijerinckii subsp. pelagicum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanospirillum beijerinckii subsp. beijerinckii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanomonas | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanomonas doudoroffii T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanomonas baumannii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanobacter mangrovi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanobacillus soja | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanobacillus salinisoli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanobacillus alkalisoli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanitalea | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanitalea nanhaiensis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceaniglobus trochenteri | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceaniferula | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceaniferula marina T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanidesulfovibrio | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanidesulfovibrio marinus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanidesulfovibrio indonesiensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanidesulfovibrio gabonensis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola pacificus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola nitratireducens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola nanhaiensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola marinus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola litoreus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola flagellatus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola batsensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanicola antarcticus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanibulbus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Oceanibulbus indolifex T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |