| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Xylella fastidiosa subsp. fastidiosa | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylella | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanivirga thermophila T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanivirga | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanivirgaceae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanimonas ulmi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanimonas pachnodae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanimonas cellulosilytica T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanimonas allomyrinae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanimonas | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanibacillus composti T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xylanibacillus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xinfangfangia soli T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xinfangfangia humi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xinfangfangia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus vietnamensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus thuongxuanensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus szentirmaii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus stockiae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus romanii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus poinarii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus nematophila T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus miraniensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus mauleonii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus magdalenensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus kozodoii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus koppenhoeferi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus khoisanae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus japonica | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Xenorhabdus ishibashii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |