| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Rickettsia prowazekii T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia peacockii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia parkeri | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia montanensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia monacensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia massiliae | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia japonica | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia hoogstraalii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia honei | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia heilongjiangensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia gravesii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia felis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia conorii subsp. raoultii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia conorii subsp. israelensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia conorii subsp. indica | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia conorii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia conorii subsp. conorii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia canadensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia bellii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia australis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia asiatica | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia asembonensis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia akari | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rickettsia aeschlimannii | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rhodovulum visakhapatnamense | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rhodovulum viride | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rhodovulum tesquicola | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rhodovulum sulfidophilum T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rhodovulum strictum | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Rhodovulum steppense | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago |