| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Spiroplasmataceae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta thermophila | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta psychrophila | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta lutea | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta isovalerica | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta halophila | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta dissipatitropha | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta cellobiosiphila | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta aurantia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta aurantia subsp. aurantia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta asiatica | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta africana | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirochaeta | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillum winogradskyi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillum volutans T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillaceae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillospora rubra | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillospora albida T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirillospora | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirilliplanes yamanashiensis T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirilliplanes | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spiribacter vilamensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spiribacter salinus T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spiribacter roseus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spiribacter curvatus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spiribacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirabiliibacterium pneumoniae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirabiliibacterium mucosae T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Spirabiliibacterium falconis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |