| [23743] Halcampidae | Appellations de Taxon | 23743 |
| [23744] Halymeniales | Appellations de Taxon | 23744 |
| [23745] Haminoea | Appellations de Taxon | 23745 |
| [23746] Harpinia | Appellations de Taxon | 23746 |
| [23747] Haustorius arenarius | Appellations de Taxon | 23747 |
| [23748] Hediste | Appellations de Taxon | 23748 |
| [23749] Hemigrapsus penicillatus | Appellations de Taxon | 23749 |
| [2375] Sericostoma clypeatum | Appellations de Taxon | 2375 |
| [23750] Hesionura elongata | Appellations de Taxon | 23750 |
| [23751] Heteromysini | Appellations de Taxon | 23751 |
| [23752] Heteronemertea | Appellations de Taxon | 23752 |
| [23753] Heterosigma | Appellations de Taxon | 23753 |
| [23754] Hexaplex (Trunculariopsis) | Appellations de Taxon | 23754 |
| [23755] Hildenbrandiales | Appellations de Taxon | 23755 |
| [23756] Holognathidae | Appellations de Taxon | 23756 |
| [23757] Holothuriidae | Appellations de Taxon | 23757 |
| [23758] Hoplonemertini | Appellations de Taxon | 23758 |
| [23759] Hormathiidae | Appellations de Taxon | 23759 |
| [2376] Beraea aureomarginata | Appellations de Taxon | 2376 |
| [23760] Hyale | Appellations de Taxon | 23760 |
| [23761] Hydroides elegans | Appellations de Taxon | 23761 |
| [23763] Idoteidae | Appellations de Taxon | 23763 |
| [23764] Irregularia | Appellations de Taxon | 23764 |
| [23765] Ischnocalanus tenuis | Appellations de Taxon | 23765 |
| [23766] Janiroidea | Appellations de Taxon | 23766 |
| [23767] Jasmineira elegans | Appellations de Taxon | 23767 |
| [23768] Jassa | Appellations de Taxon | 23768 |
| [23769] Kurtiella | Appellations de Taxon | 23769 |
| [2377] Beraea maurus | Appellations de Taxon | 2377 |
| [23770] Lagis koreni | Appellations de Taxon | 23770 |
| [23771] Laminariaceae | Appellations de Taxon | 23771 |
| [23772] Chaetopterygopsis maclachlani | Appellations de Taxon | 23772 |
| [23773] Rhyacophila hirticornis | Appellations de Taxon | 23773 |
| [23774] Lamprothamnium papulosum | Appellations de Taxon | 23774 |
| [23775] Lekanesphaera | Appellations de Taxon | 23775 |
| [23776] Lembos websteri | Appellations de Taxon | 23776 |
| [23778] Leptocardii | Appellations de Taxon | 23778 |
| [23779] Leptocheirus hirsutimanus | Appellations de Taxon | 23779 |
| [2378] Beraea pullata | Appellations de Taxon | 2378 |
| [23780] Leptocheirus pectinatus | Appellations de Taxon | 23780 |
| [23781] Leptocheirus pilosus | Appellations de Taxon | 23781 |
| [23782] Leptomysini | Appellations de Taxon | 23782 |
| [23783] Leucothoe | Appellations de Taxon | 23783 |
| [23784] Licmophorales | Appellations de Taxon | 23784 |
| [23786] Listriella | Appellations de Taxon | 23786 |
| [23787] Littorinimorpha | Appellations de Taxon | 23787 |
| [23788] Loripes lacteus | Appellations de Taxon | 23788 |
| [23789] Lucinella divaricata | Appellations de Taxon | 23789 |
| [2379] Beraeodes minutus | Appellations de Taxon | 2379 |
| [23790] Lucinoma borealis | Appellations de Taxon | 23790 |