Acanthoica monospina J.Schiller, 1925 (additional source)
Acroblaste reinschii Wille, 1890 accepted as Pilinia reinschii (Wille) Collins, 1908 (basis of record)
Alexandrium tamarense f. excavatum (Braarud) Konovalova, 1993 accepted as Alexandrium catenella (Whedon & Kofoid) Balech, 1985 (basis of record)
Arthrodesmus Ehrenberg ex Ralfs, 1848 accepted as Staurodesmus Teiling, 1948 (basis of record)
Chaetoceros convolutus f. trisetosa Brunel, 1962 (additional source)
Chlorosarcinopsis halophila Guillard, H.C.Bold & McEntee, 1975 accepted as Desmochloris halophila (Guillard, H.C.Bold & McEntee) Watanabe, Kuroda & Maiwa, 2001 (basis of record)
Chrysosphaerella longispina Lauterborn, 1896 (additional source)
Closterium dianae Ehrenberg ex Ralfs, 1848 (basis of record)
Closterium moniliferum Ehrenberg ex Ralfs, 1848 (basis of record)
Cyclonexis annularis A.C.Stokes, 1886 (basis of record)
Cyclophora tenuis Castracane, 1878 (basis of record)
Dictyocha fibula var. messanensis (E.H.P.A.Haeckel) Lemmermann, 1901 (basis of record)
Dictyocha fibula var. messanensis f. spinosa Lemmermann, 1908 (basis of record)
Entomoneis paludosa var. paludosa (W.Smith) Reimer, 1975 (basis of record)
Euastrum Ehrenberg ex Ralfs, 1848 (basis of record)
Eutreptiella pomquetensis (McLachlan, Seguel & Fritz) Marin & Melkonian, 2003 (basis of record)
Extubocellulus spinifer (Hargraves & Guillard) Hasle, Stosch & Syvertsen, 1983 accepted as Bellerochea spinifera Hargraves & Guillard, 1974 (basis of record)
Fragilaria rotundissima Hargraves & Guillard, 1974 (basis of record)
Gonium pectorale O.F.Müller, 1773 (basis of record)
Gonyaulax orientalis Lindemann, 1924 (additional source)
Gyrosigma wormleyi (Sullivant) Boyer, 1922 accepted as Pleurosigma wormleyi W.S.Sullivant, 1859 (basis of record)
Kirchneriella obesa var. major (C.Bernard) G.M.Smith, 1918 accepted as Kirchneriella major C.Bernard, 1908 (basis of record)
Merismopedia quadruplicata (Meneghini) Trevisan, 1845 (basis of record)
Micrasterias foliacea Bailey ex Ralfs, 1848 (basis of record)
Navicula anglica var. minuta Cleve, 1895 (basis of record)
Navicula frigida Grunow, 1880 (basis of record)
Nitzschia hybridaeformis Hustedt, 1955 (basis of record)
Nitzschia laevis Hustedt, 1939 (basis of record)
Oocystis minuta Guillard, Bold & MacEntee, 1975 accepted as Ecdysichlamys minuta (Guillard, Bold & MacEntee) Komárek & Comas, 1984 (basis of record)
Oscillatoria woronichini Anissimova, 1949 accepted as Oscillatoria woronichinii Anissimova, 1949 accepted as Jaaginema woronichinii (Anissimova) Anagnostidis & Komárek, 1988 (basis of record)
Peridinium rotundatum T.H.Abé, 1936 accepted as Protoperidinium hidemitii (Paulsen, 1949) Balech, 1994 (additional source)
Peridinium simplex Gran & Braarud, 1935 (basis of record)
Pleurosigma angulatum f. strigosum (W.Smith) Van Heurck, 1880 accepted as  (basis of record)
Pleurosigma stuxbergii Cleve & Grunow, 1880 (additional source)
Quadrigula chodatii (Tanner-Füllemann) G.M.Smith, 1920 (basis of record)
Rhabdosphaera tubulosa J.Schiller, 1925 (additional source)
Sphaerozosma Corda ex Ralfs, 1848 (basis of record)
Spirogyra Link, 1820 (basis of record)
Staurodesmus Teiling, 1948 (basis of record)
Stauroneis nobilis Schumann, 1867 (basis of record)
Stephanopyxis broschii Grunow (basis of record)
Stigeoclonium lubricum (Dillwyn) Kützing, 1845 (basis of record)
Tropidoneis antarctica var. polyplasta Gran & Angst, 1931 (basis of record)
Xanthidium antilopaeum Kützing, 1849 (basis of record)