| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Nocardia africana | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nocardia acidivorans | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nocardia aciditolerans | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nocardia abscessus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nocardia | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveitalea solisilvae T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveitalea | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveispirillum lacus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveispirillum irakense | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveispirillum fermenti T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveispirillum cyanobacteriorum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveispirillum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveibacterium umoris T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Niveibacterium | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrospirillum iridis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrospirillum amazonense T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrospirillum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosospira tenuis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosospira multiformis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosospira lacus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosospira | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrososphaera viennensis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrososphaera | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrososphaeraceae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrososphaerales | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosopumilus ureiphilus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosopumilus piranensis | ||||
| Nitrosopumilus oxyclinae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosopumilus maritimus T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Nitrosopumilus cobalaminigenes | Unknown | Valid (ICNP) | Excubia bot about 5 years ago |