Anisonema grande F. Stein, 1878 accepted as Anisonema acinus Dujardin, 1841 (habitat flag source)
Bicoeca petiolatum (F. Stein) Pringsh. accepted as Bicosoeca petiolata (Stein) Pringsheim, 1946 (habitat flag source)
Cymbella ruttneri Hustedt, 1931 accepted as Cymbella microcephala Grunow, 1885 (habitat flag source)
Dinobryon elongatum Imhof accepted as Dinobryon bavaricum O.E. Imhof, 1890 (habitat flag source)
Enteromorpha nana (Sommerfelt) Sjöstedt, 1939 accepted as Blidingia minima (Nägeli ex Kützing) Kylin, 1947 (habitat flag source)
Fragilaria exigua Grunow, 1878 accepted as Fragilariforma virescens (Ralfs) D.M. Williams & Round, 1988 (habitat flag source)
Gomphonema subclavatum (Grunow) Grunow, 1885 accepted as Gomphonema clavatum Ehrenberg, 1832 (habitat flag source)
Leibleinia aeruginea Kützing, 1843 accepted as Calothrix aeruginea Thuret, 1875 (habitat flag source)
Navicula stauroptera Grunow, 1860 accepted as Pinnularia stauroptera (Grunow) Rabenhorst, 1864 (habitat flag source)
Navicula viridis (Nitzsch) Kützing accepted as Pinnularia viridis (Nitzsch) Ehrenberg, 1843 (habitat flag source)
Neidium amphigomphus (Ehrenberg) Pfitzer, 1871 accepted as Neidium iridis (Ehrenberg) Cleve, 1894 (habitat flag source)
Nitzschia reversa W. Smith accepted as Nitzschia lorenziana Grunow, 1879 (habitat flag source)
Oscillatoria lutea C. Agardh, 1824 accepted as Lyngbya lutea (C. Agardh) Areschoug, 1850 (habitat flag source)
Peridinium australe Playfair, 1919 accepted as Peridinium willei Huitfeldt-Kaas, 1900 (habitat flag source)
Peridinium caudatum Playfair, 1919 accepted as Peridinium umbonatum F. Stein, 1883 (habitat flag source)
Peridinium centenniale (Playfair) M. Lefèvre, 1932 accepted as Peridinium umbonatum F. Stein, 1883 (habitat flag source)
Phacus platalea Drezepolski, 1925 accepted as Phacus orbicularis K. Hübner, 1886 accepted as Phacus circulatus Pochmann, 1942 (habitat flag source)
Plectonema wollei Farlow, 1877 accepted as Lyngbya wollei (Farlow) Farlow, 1877 (habitat flag source)
Rhizoclonium capillare Kützing, 1847 accepted as Rhizoclonium tortuosum (Dillwyn) Kützing, 1845 (habitat flag source)
Rhizoclonium hookeri Kützing, 1849 accepted as Rhizoclonium africanum Kützing, 1853 (habitat flag source)
Scenedesmus bijuga (Turpin) Lagerheim, 1893 accepted as Scenedesmus ellipticus Corda, 1835 (habitat flag source)
Ulothrix variabilis Kützing, 1849 accepted as Ulothrix tenerrima (Kützing) Kützing, 1843 (habitat flag source)