| australia | | hydrolithon munitum | species | 3 | 0 |
| australia | | hydrolithon onkodes | species | 9 | 0 |
| australia | | hydrolithon rupestre | species | 2 | 0 |
| australia | | hydrolithon sp. swd-2014 | species | 1 | 0 |
| brazil | | hydrolithon onkodes | species | 1 | 0 |
| el salvador | | hydrolithon reinboldii | species | 1 | 0 |
| guadeloupe | | hydrolithon boergesenii | species | 4 | 0 |
| guadeloupe | | hydrolithon sp. ar-2014 | species | 3 | 0 |
| india | | hydrolithon cf. onkodes | species | 1 | 0 |
| indonesia | | hydrolithon onkodes | species | 4 | 0 |
| maldives | baa atoll | hydrolithon cf. reinboldii | species | 2 | 0 |
| maldives | baa atoll | hydrolithon reinboldii | species | 2 | 0 |
| mexico | | hydrolithon sp. nmr-2015 | species | 1 | 0 |
| new zealand | auckland | hydrolithon onkodes | species | 1 | 0 |
| new zealand | northland | hydrolithon onkodes | species | 3 | 0 |
| seychelles | | hydrolithon gardineri | species | 1 | 0 |
| united states | hawaii | hydrolithon cf. onkodes | species | 2 | 0 |
| united states | hawaii | hydrolithon cf. reinboldii | species | 2 | 0 |
| united states | hawaii | hydrolithon gardineri | species | 3 | 0 |
| united states | hawaii | hydrolithon reinboldii | species | 4 | 0 |
| united states | hawaii | hydrolithon sp. bish 683179 | species | 1 | 0 |