| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Hoeflea halophila | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hoeflea anabaenae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hoeflea alexandrii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hoeflea | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Histophilus somni T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Histophilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Histidinibacterium lentulum T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Histidinibacterium | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hirschia maritima | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hirschia litorea | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hirschia baltica T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hirschia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hippea maritima T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hippea jasoniae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hippea alviniae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hippea | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heyndrickxia vini | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heyndrickxia sporothermodurans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heyndrickxia oleronia T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heyndrickxia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hespellia stercorisuis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hespellia porcina | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hespellia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphon llansteffanensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphon gulosus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphon giganteus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphon geysericola | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphon aurantiacus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphon | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herpetosiphonales | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |