| candidatus rickettsia gravesii | subspecies | bacteria | bacteria | species | 354585 |
| candidatus rickettsia gravesii bwi-1 | no rank | | | no rank | 1397702 |
| rickettsia massiliae | species | bacteria | bacteria | species | 35791 |
| rickettsia raoultii | species | bacteria | bacteria | species | 369822 |
| uncultured rickettsia sp. | no rank | bacteria | environmental samples | species | 249168 |