| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Yonghella fusiformis T | Unknown | Valid (ICNP) | Excubia bot 8 months ago | |
| Yoonia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia acticola | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yoonia algicola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Yoonia litorea | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia maricola | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia maritima | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia phaeophyticola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Yoonia ponticola | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yoonia rhodophyticola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Yoonia rosea | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia sediminilitoris | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia tamlensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yoonia vestfoldensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youhaiella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youhaiella shaoguanensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Youhaiella tibetensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youngiibacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youngiibacter fragilis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youngiibacter multivorans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youngimonas | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youngimonas vesicularis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Youxingia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Youxingia wuxianensis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yuhushiella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yuhushiella deserti T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yunchengibacter | ||||
| Yunchengibacter salinarum T | Unknown | Valid (ICNP) | Excubia bot 11 months ago | |
| Zafaria | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Zafaria cholistanensis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |