| Species | as Species | Doubtful |
|---|
Connected successfully| Akashiwo sanguinea (K.Hirasaka) G.Hansen & Ø.Moestrup | | |
| Anabaena spiroides Klebahn, 1895 | | |
| Apedinella radians (Lohmann) Campbell, 1973 | ''Apedinella spinifera''; | |
| Aphanizomenon flos-aquae (Linnaeus) Ralfs ex Bornet & Flahault, 1888 | also ''Anabaena flos-aquae''; | |
| Asterionella formosa Hassall, 1850 | | |
| Aulacoseira granulata (Ehrenberg) Simonsen, 1979 | ''Melosira granulata''; | |
| Cerataulina pelagica (Cleve) Hendey, 1937 | | |
| Chaetoceros affinis Lauder, 1864 | | |
| Chaetoceros calcitrans (Paulsen) Takano, 1968 | ''Chaetoceros simplex var. calcitrans''; | |
| Chaetoceros curvisetus P.T. Cleve, 1889 | | |
| Chaetoceros insignis Prosckina-Lavrenko | | |
| Chaetoceros karianus Grunow, 1880 | | |
| Chaetoceros rigidus Ostenfeld | | |
| Chaetoceros socialis Lauder, 1864 | | |
| Chaetoceros subtilis var. abnormis | | |
| Chroococcus minimus (von Keissler) Lemmermann, 1904 | ''Gloeocapsa minima''; | |
| Cyclotella caspia Grunow, 1878 | | |
| Cylindrotheca closterium (Ehrenberg) Reiman & Lewin, 1964 | | |
| Dactyliosolen fragilissimus (Bergon) G. R. Hasle, 1991 | ''Rhizosolenia fragillissima''; | |
| Detonula confervacea (P.T. Cleve) Gran, 1900 | | |
| Diatoma tenue C.A. Agardh, 1812 | ''Diatoma elongatum''; | |
| Emiliania huxleyi (Lohmann) Hay & Mohler, 1967 | | |
| Eutreptia lanowii Steuer, 1904 | | |
| Eutreptia viridis Perty | | |
| Gloeocapsa minor (Kutzing) Hollerbach | | |
| Heterocapsa triquetra (Ehrenberg, 1840) Stein, 1883 | | |
| Leptocylindrus danicus P.T. Cleve, 1889 | | |
| Leptocylindrus minimus Gran, 1915 | | |
| Lingulodinium polyedrum (Stein, 1883) Dodge, 1989 | | |
| Lioloma pacificum (Cupp) Hasle, 1996 | | |
| Merismopedia glauca (Ehrenberg) Kützing, 1845 | | |
| Merismopedia minima Beck, 1897 | | |
| Merismopedia punctata Meyen, 1939 | | |
| Merismopedia tenuissima Lemmermann, 1898 | | |
| Micractinium pusillum Fresenius, 1858 | | |
| Microcystis aeruginosa (Kützing) Kützing, 1846 | | |
| Monoraphidium arcuatum (Korshikov) Hindák, 1970 | | |
| Nitzschia actinastroides (Lemm.) Van Goor | ''Synedra actinastroides''; | |
| Nitzschia tenuirostris Mer. | | |
| Nodularia spumigena Mertens in Jürgens, 1822 | | |
| Oscillatoria kisselevii Anissimova 1949 | | |
| Proboscia alata (Brightwell) Sundström, 1986 | | |
| Prorocentrum cordatum (Ostenfeld, 1901) Dodge, 1975 | | |
| Prorocentrum micans Ehrenberg, 1834 | | |
| Pseudo-nitzschia delicatissima (P.T. Cleve, 1897) Heiden, 1928 | | |
| Pseudo-nitzschia seriata (P.T. Cleve, 1883) H. & M. Peragallo, 1900 | | |
| Scenedesmus obliquus (Turpin) Kützing, 1833 | | |
| Scrippsiella trochoidea (Stein, 1883) Balech ex Loeblich III, 1965 | | |
| Skeletonema costatum (Greville) P.T. Cleve, 1878 | | |
| Skeletonema subsalsum (A.Cleve) Bethge, 1928 | | |
| Spirulina laxissima G.S. West, 1907 | | |
| Stephanodiscus hantzschii Grunow in P.T. Cleve & Grunow, 1880 | | |
| Stephanodiscus socialis I.V.Makarova & A.I.Proshkina-Lavrenko | | |
| Stephanodiscus subsalsus (A. Cleve) Hustedt | | |
| Surirella minuta Brébisson in Kützing, 1849 | ''Surirella ovata var. salina''; | |
| Thalassionema nitzschioides (Grunow, 1862) Van Heurck, 1896 | | |
| Thalassiosira baltica (Grunow in P.T. Cleve & Grunow) Ostenfeld, 1901 | ''Thalassiosira subsalina''; | |
| Thalassiosira nordenskioeldii P.T. Cleve, 1873 | | |
| Thalassiosira parva Proshk.-Lavr., 1955 | | |
| Thalassiosira pseudonana Hasle & Heimdal, 1970 | | |