| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Hydrogenobaculum acidophilum T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenobaculum | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenobacter thermophilus T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenobacter subterraneus | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenobacter hydrogenophilus | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenobacter | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenoanaerobacterium saccharovorans T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenoanaerobacterium | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenivirga okinawensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenivirga caldilitoris T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenivirga | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenispora ethanolica T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenispora | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenimonas urashimensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenimonas thermophila T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenimonas | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenimonaceae | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogeniiclostridium mannosilyticum T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogeniiclostridium | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenibacillus schlegelii T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrogenibacillus | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrocarboniphaga effusa T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrocarboniphaga daqingensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrocarboniphaga | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrocarboniclastica marina T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrocarboniclastica | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrobacter penzbergensis T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hydrobacter | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hyalangium minutum T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Hyalangium | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago |