| bathymodiolus heckerae gill symbiont | species | | | species | 1052210 |
| bathymodiolus heckerae methanotrophic gill symbiont | species | | | species | 1052211 |
| bathymodiolus heckerae thiotrophic gill symbiont | species | | | species | 1052212 |
| intranuclear bacterium of bathymodiolus spp. | no rank | bacteria | bacteria | species | 539814 |