| italy | | uncultured pseudoruegeria sp. | species | 3 | 0 |
| philippines | | uncultured pseudoruegeria sp. | species | 1 | 0 |
| slovenia | | uncultured pseudoruegeria sp. | species | 1 | 0 |
| united states | palmyra atoll | uncultured pseudoruegeria sp. | species | 1 | 0 |
| united states minor outlying islands | palmyra atoll | uncultured pseudoruegeria sp. | species | 1 | 0 |