| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Novosphingobium colocasiae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium clariflavum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium chloroacetimidivorans | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium capsulatum T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium bradum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium barchaimii | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium arvoryzae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium aromaticivorans | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium arabidopsis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium aquiterrae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium aquimarinum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium aquaticum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium acidiphilum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novosphingobium | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novispirillum itersonii subsp. nipponicum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novispirillum itersonii T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novispirillum itersonii subsp. itersonii | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novispirillum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novipirellula rosea T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Rhodopirellula | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novipirellula galeiformis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novipirellula caenicola | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novipirellula aureliae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novipirellula artificiosorum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novipirellula | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novimethylophilus kurashikiensis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Novimethylophilus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Noviherbaspirillum suwonense | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Noviherbaspirillum soli | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Noviherbaspirillum psychrotolerans | Unknown | Valid (ICNP) | Excubia bot about 5 years ago |