| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Sphingobacterium antarcticum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerotilus sulfidivorans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerotilus mobilis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerosporangium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerosporangium viridialbum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerosporangium rubeum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerosporangium melleum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerosporangium cinnabarinum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sphaerochaeta multiformis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Spelaeibacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Spelaeibacter cavernicola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Soonwooa buanensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Solihabitans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Solihabitans fulvus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Solicola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Solicola gregarius | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sodalis ligni | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Snodgrassella gandavensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Snodgrassella communis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sneathiella sedimenti | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sneathiella marina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Slackia heliotrinreducens | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Skermanella xinjiangensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhodobacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhodobacter populi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhodobacter huangdaonensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhodobacter ferrireducens | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium xinjiangensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium xinjiangense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |