| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Streptococcus mitis subsp. carlssonii | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptococcus jiangnanensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptococcus iners | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptococcus iners subsp. iners | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptococcus iners subsp. hyiners | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptococcus fermentans | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptacidiphilus jeojiensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptacidiphilus cavernicola | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Streptacidiphilus alkalitolerans | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Stigmatella ashevillensis | ||||
| Stenotrophomonas pigmentata | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Stenotrophomonas forensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Stenotrophomonas beteli | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sporomusa carbonis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sphingopyxis kveilinensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sphingomonas mollis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sphingomonas longa | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sphingomonas aurea | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sphingobacterium siyangense subsp. siyangense | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sphingobacterium siyangense subsp. cladoniae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Spectribacter hydrogenoxidans T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sorangium atrum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sinomonas puerhi | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Segatella asaccharophila | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Secundilactobacillus muriivasis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Scrofimicrobium appendicitidis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Scandinavium lactucae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Sanguibacter biliveldensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Salinirarus | ||||
| Salinirarus marinus T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago |