| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Roseateles toxinivorans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles saccharophilus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles puraquae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles oligotrophus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles noduli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles chitosanitabidus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles chitinivorans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Roseateles asaccharophilus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Romeriopsis | ||||
| Romeriopsis navalis T | ||||
| Romeriopsis marina | ||||
| Romboutsia faecis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rochalimaea | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rochalimaea vinsonii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rochalimaea quintana T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rochalimaea henselae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rochalimaea elizabethae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Robertkochia sediminum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Riemerella anatipestifera T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsiella | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsiella stethorae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsiella popilliae T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsiella massiliensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsiella grylli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsiella chironomi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsia tsutsugamushi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsia sennetsu | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsia rickettsi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsia raoultii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Rickettsia montana | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |