| Esperanto | epo-000 |
| hidrozooj | |
| Deutsch | deu-000 | Hydrozoen |
| français | fra-000 | hydrozoaires |
| magyar | hun-000 | hidraállatok |
| italiano | ita-000 | idrozoi |
| Latina Nova | lat-003 | Hydrozoa |
| Nederlands | nld-000 | hydroïdpoliepen |
| Nederlands | nld-000 | kwalpoliepen |
| português | por-000 | hidrozoários |
| русский | rus-000 | гидроидные |