| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Youngiibacter fragilis T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Youngiibacter | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Youhaiella tibetensis T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Youhaiella | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia vestfoldensis T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia tamlensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia sediminilitoris | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia rosea | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia maritima | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia maricola | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia litorea | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yoonia | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yonghaparkia alkaliphila T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yonghaparkia | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yokenella regensburgei T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yokenella | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yinghuangia seranimata | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yinghuangia catbensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yinghuangia aomiensis T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yinghuangia | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yimella radicis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yimella lutea T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yimella | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia wautersii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia vastinensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia thracica | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia similis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia ruckeri | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia rohdei | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Yersinia rochesterensi | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago |