| [28998] Navicula dactylus var. lata | Appellations de Taxon | 28998 |
| [28999] Tabellaria flocculosa var. linearis | Appellations de Taxon | 28999 |
| [29] Nemoura cinerea | Appellations de Taxon | 29 |
| [290] Lithax niger | Appellations de Taxon | 290 |
| [2900] Leucostola | Appellations de Taxon | 2900 |
| [29000] Nitzschia incurva var. lorenziana | Appellations de Taxon | 29000 |
| [29001] Achnanthes exigua var. heterovalvata f. subglobosa | Appellations de Taxon | 29001 |
| [29002] Tabellaria flocculosa var. asterionelloides | Appellations de Taxon | 29002 |
| [29003] Caloneis formosa var. rostrata f. subproducta | Appellations de Taxon | 29003 |
| [29004] Melosira granulata var. angustissima f. depauperata | Appellations de Taxon | 29004 |
| [29005] Pinnularia gibba var. mesogongyla f. constricta | Appellations de Taxon | 29005 |
| [29006] Tabularia platensis var. angusta | Appellations de Taxon | 29006 |
| [29007] Synedra platensis var. angusta | Appellations de Taxon | 29007 |
| [29008] Pinnularia stauroptera var. doellojuradoi | Appellations de Taxon | 29008 |
| [29009] Navicula doellojuradoi | Appellations de Taxon | 29009 |
| [2901] Campsicnemus | Appellations de Taxon | 2901 |
| [29010] Pinnularia aperta var.doellojuradoi | Appellations de Taxon | 29010 |
| [29011] Miraltia throndsenii | Appellations de Taxon | 29011 |
| [29012] Chaetoceros teres | Appellations de Taxon | 29012 |
| [29013] Rhopalodia musculus var. perlonga | Appellations de Taxon | 29013 |
| [29014] Epithemia musculus var. perlonga | Appellations de Taxon | 29014 |
| [29015] Gomphonema intricatum var. vibrio f. attenuata | Appellations de Taxon | 29015 |
| [29016] Melosira granulata var. angustissima f. spiralis | Appellations de Taxon | 29016 |
| [29017] Eunotia rabenhorstii var. africana f. triodon | Appellations de Taxon | 29017 |
| [29018] Eunotia luna var. major | Appellations de Taxon | 29018 |
| [29019] Eunotia luna var. aequalis f. major | Appellations de Taxon | 29019 |
| [2902] Acropsilus | Appellations de Taxon | 2902 |
| [29020] Fragilaria arcus var. amphioxys | Appellations de Taxon | 29020 |
| [29021] Fragilaria producta var. acuta | Appellations de Taxon | 29021 |
| [29022] Frustulia suspecta var. obtusa | Appellations de Taxon | 29022 |
| [29023] Vanheurckia suspecta var. obtusa | Appellations de Taxon | 29023 |
| [29024] Halamphora exigua var. robusta | Appellations de Taxon | 29024 |
| [29025] Amphora exigua var. robusta | Appellations de Taxon | 29025 |
| [29026] Halamphora normanii var. undulata | Appellations de Taxon | 29026 |
| [29027] Halamphora veneta var. somalica | Appellations de Taxon | 29027 |
| [29028] Amphora veneta var. somalica | Appellations de Taxon | 29028 |
| [29029] Hippodonta hungarica var. obtusa | Appellations de Taxon | 29029 |
| [2903] Xanthochlorus | Appellations de Taxon | 2903 |
| [29030] Navicula hungarica var. obtusa | Appellations de Taxon | 29030 |
| [29031] Lemnicola hungarica var. pusilla | Appellations de Taxon | 29031 |
| [29032] Achnanthes hungarica var. pusilla | Appellations de Taxon | 29032 |
| [29033] Navicula disparilis var. stigmata | Appellations de Taxon | 29033 |
| [29034] Navicula stigmata | Appellations de Taxon | 29034 |
| [29035] Navicula disparilis var. rostrata | Appellations de Taxon | 29035 |
| [29036] Navicula stigmata var. rostrata | Appellations de Taxon | 29036 |
| [29037] Navicula guttata var. peragalli | Appellations de Taxon | 29037 |
| [29038] Navicula minima var. pseudofossilis | Appellations de Taxon | 29038 |
| [29039] Neidium magellanicum var. minor | Appellations de Taxon | 29039 |
| [2904] Chrysops | Appellations de Taxon | 2904 |
| [29040] Navicula magellanica var. minor | Appellations de Taxon | 29040 |