| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Nocardia hydrocarbonoxydans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia cyriacigeorgici | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia cummidelens | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia coffeae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia cellulans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia calcarea | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia bhagyanesis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia autotrophica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia amarae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia alni | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia albiluteola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nocardia acididurans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrospirillum irinus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrospira marina T | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrospina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrospina gracilis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrosospira briensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrosophilus labii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrosolobus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrosolobus multiformis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrosococcus oceanus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrosococcus nitrosus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitrogeniibacter aestuarii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitratireductor rhodophyticola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitratidesulfovibrio termitidis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nitratidesulfovibrio oxamicus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nicolia | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Nicolia spurrieriana | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Niallia endozanthoxylica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Niabella beijingensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |