| [21681] Bellaspira margaritensis | Appellations de Taxon | 21681 |
| [21682] Belostoma aurivillianum | Appellations de Taxon | 21682 |
| [21683] Belostoma denticolle | Appellations de Taxon | 21683 |
| [21684] Belostoma harrisi | Appellations de Taxon | 21684 |
| [21685] Belostoma micantulum | Appellations de Taxon | 21685 |
| [21686] Belostoma plebejum | Appellations de Taxon | 21686 |
| [21687] Belostoma stollii | Appellations de Taxon | 21687 |
| [21688] Belostomatinae | Appellations de Taxon | 21688 |
| [21689] Bessierus | Appellations de Taxon | 21689 |
| [2169] Aphia | Appellations de Taxon | 2169 |
| [21690] Bessierus doloris | Appellations de Taxon | 21690 |
| [21691] Biomphalaria | Appellations de Taxon | 21691 |
| [21692] Biomphalaria glabrata | Appellations de Taxon | 21692 |
| [21693] Biomphalaria kuhniana | Appellations de Taxon | 21693 |
| [21694] Biomphalaria schrammi | Appellations de Taxon | 21694 |
| [21695] Blauneria | Appellations de Taxon | 21695 |
| [21696] Blauneria heteroclita | Appellations de Taxon | 21696 |
| [21697] Bornella | Appellations de Taxon | 21697 |
| [21698] Bornella calcarata | Appellations de Taxon | 21698 |
| [21699] Bornellidae | Appellations de Taxon | 21699 |
| [217] Hydropsyche ornatula | Appellations de Taxon | 217 |
| [2170] Aphia minuta | Appellations de Taxon | 2170 |
| [21700] Bostrycapulus | Appellations de Taxon | 21700 |
| [21701] Bostrycapulus aculeatus | Appellations de Taxon | 21701 |
| [21702] Brachiopoda | Appellations de Taxon | 21702 |
| [21703] Brachycythara | Appellations de Taxon | 21703 |
| [21704] Brachycythara biconica | Appellations de Taxon | 21704 |
| [21705] Brachydiplacinae | Appellations de Taxon | 21705 |
| [21706] Brachymesia | Appellations de Taxon | 21706 |
| [21707] Brachymesia furcata | Appellations de Taxon | 21707 |
| [21708] Brachymesia herbida | Appellations de Taxon | 21708 |
| [21709] Brechmorhoga praedatrix | Appellations de Taxon | 21709 |
| [2171] Gobius | Appellations de Taxon | 2171 |
| [21710] Brechmorhoga travassosi | Appellations de Taxon | 21710 |
| [21711] Buccininae | Appellations de Taxon | 21711 |
| [21712] Buccinini | Appellations de Taxon | 21712 |
| [21713] Buccinoidea | Appellations de Taxon | 21713 |
| [21714] Buenoa salutis | Appellations de Taxon | 21714 |
| [21715] Bufonaria | Appellations de Taxon | 21715 |
| [21717] Bullata | Appellations de Taxon | 21717 |
| [21718] Bullata lilacina | Appellations de Taxon | 21718 |
| [21719] Bursidae | Appellations de Taxon | 21719 |
| [2172] Gobius niger | Appellations de Taxon | 2172 |
| [21720] Cacoides | Appellations de Taxon | 21720 |
| [21721] Cacoides latro | Appellations de Taxon | 21721 |
| [21722] Caenogastropoda | Appellations de Taxon | 21722 |
| [21723] Calliostoma | Appellations de Taxon | 21723 |
| [21724] Calliostoma adspersum | Appellations de Taxon | 21724 |
| [21725] Calliostoma brunneopictum | Appellations de Taxon | 21725 |
| [21726] Calliostoma carcellesi | Appellations de Taxon | 21726 |