| [24684] Hastula | Appellations de Taxon | 24684 |
| [24685] Hemiaulales | Appellations de Taxon | 24685 |
| [24686] Heteromastus filiformis | Appellations de Taxon | 24686 |
| [24687] Heterosiphonia | Appellations de Taxon | 24687 |
| [24688] Hippoidea | Appellations de Taxon | 24688 |
| [24689] Hippomedon | Appellations de Taxon | 24689 |
| [2469] Hydroporus tristis | Appellations de Taxon | 2469 |
| [24690] Hippopus hippopus | Appellations de Taxon | 24690 |
| [24691] Hyala | Appellations de Taxon | 24691 |
| [24692] Hyalinoecia | Appellations de Taxon | 24692 |
| [24693] Hydroides norvegicus | Appellations de Taxon | 24693 |
| [24694] Hypnea | Appellations de Taxon | 24694 |
| [24695] Hypoglossum | Appellations de Taxon | 24695 |
| [24696] Idotea balthica | Appellations de Taxon | 24696 |
| [24697] Idotea chelipes | Appellations de Taxon | 24697 |
| [24698] Idotea linearis | Appellations de Taxon | 24698 |
| [24699] Idotea neglecta | Appellations de Taxon | 24699 |
| [247] Metalype fragilis | Appellations de Taxon | 247 |
| [2470] Hydroporus springeri | Appellations de Taxon | 2470 |
| [24700] Idotea pelagica | Appellations de Taxon | 24700 |
| [24701] Iphinoe serrata | Appellations de Taxon | 24701 |
| [24702] Iphinoe tenella | Appellations de Taxon | 24702 |
| [24703] Iphinoe trispinosa | Appellations de Taxon | 24703 |
| [24704] Isaea | Appellations de Taxon | 24704 |
| [24706] Janira maculosa | Appellations de Taxon | 24706 |
| [24707] Janua (Dexiospira) | Appellations de Taxon | 24707 |
| [24708] Jasmineira caudata | Appellations de Taxon | 24708 |
| [24709] Johnstonia clymenoides | Appellations de Taxon | 24709 |
| [2471] Hydroporus umbrosus | Appellations de Taxon | 2471 |
| [24710] Jujubinus striatus | Appellations de Taxon | 24710 |
| [24711] Kallymeniaceae | Appellations de Taxon | 24711 |
| [24712] Kefersteinia | Appellations de Taxon | 24712 |
| [24713] Kellia | Appellations de Taxon | 24713 |
| [24714] Labidoplax digitata | Appellations de Taxon | 24714 |
| [24715] Labidoplax media | Appellations de Taxon | 24715 |
| [24716] Laminaria digitata | Appellations de Taxon | 24716 |
| [24717] Laminaria hyperborea | Appellations de Taxon | 24717 |
| [24718] Laminaria saccharina | Appellations de Taxon | 24718 |
| [24719] Laonice | Appellations de Taxon | 24719 |
| [2472] Porhydrus genei | Appellations de Taxon | 2472 |
| [24720] Laophonte | Appellations de Taxon | 24720 |
| [24721] Laurencia | Appellations de Taxon | 24721 |
| [24722] Lepetidae | Appellations de Taxon | 24722 |
| [24723] Lepidepecreum | Appellations de Taxon | 24723 |
| [24724] Lepidopleurina | Appellations de Taxon | 24724 |
| [24725] Leptochelia | Appellations de Taxon | 24725 |
| [24726] Leptognathiinae | Appellations de Taxon | 24726 |
| [24727] Leptopentacta | Appellations de Taxon | 24727 |
| [24728] Leptosynapta galliennii | Appellations de Taxon | 24728 |
| [24729] Leptosynapta inhaerens | Appellations de Taxon | 24729 |