| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Sessilibacter corallicola T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serratia quinivora | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serratia proteamaculans subsp. quinovora | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serratia proteamaculans subsp. proteamaculans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serratia marinorubra | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serratia marcescens subsp. sakuensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serratia glossinae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina pilosicoli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina murdochii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina intermedia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina innocens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina hyodysenteriae T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpulina alvinipulli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpula | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpula innocens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpula hyodysenteriae T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Serpens flexibilis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Seonamhaeicola sediminis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Senegalemassilia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Senegalemassilia anaerobia T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Seliberia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Seliberia stellata T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Selenomonas timonae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Selenomonas acidaminovorans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Sejongia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Sejongia marina | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Segatella | ||||
| Segatella salivae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |