DiatomBase
Between brackets is the number of accepted extant species
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- Bacillariophyceae (5 958)
- Subclass Bacillariophyceae incertae sedis (189)
- Subclass Bacillariophycidae (4 408)
- Superorder Bacillariophycanae (4 083)
- Order Achnanthales (438)
- Order Bacillariales (357)
- Order Cymbellales (792)
- Order Dictyoneidales
- Order Lyrellales (15)
- Order Mastogloiales (88)
- Order Naviculales (2 077)
- Suborder Diploneidineae
- Suborder Naviculineae (12)
- Suborder Neidiineae (330)
- Family Berkeleyaceae Mann (29)
- Family Brachysiraceae Mann, 1990 (8)
- Family Cavinulaceae D.G. Mann (13)
- Family Cosmioneidaceae D. G. Mann (3)
- Family Diadesmidaceae D.G.Mann (130)
- Family Neidiaceae Mersechkkowsky, 1903 (147)
- Genus Labellicula Van de Vijver & Lange-Bertalot in Van de Vijver, Frenot, Beyens & Lange-Bertalot, 2005 (1)
- Genus Neidium E. Pfitzer, 1871 (135)
- Species Neidium acutum Z.Levkov & S.Krstic, 2007
- Species Neidium affine (Ehrenberg) Pfizer, 1871
- Species Neidium agonaense Foged, 1966
- Species Neidium alaskaense Foged, 1968
- Species Neidium alpinum Hustedt, 1943
- Species Neidium amphiatlanticum D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium amphigomphoides Mayer, 1925
- Species Neidium amphigomphus (Ehrenberg) Pfitzer, 1871
- Species Neidium amphirhynchus (Ehrenberg) Pfitzer, 1871 accepted as
- Species Neidium ampliatum (Ehrenberg) Krammer, 1985
- Species Neidium andinum H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot & M. Rumrich, 2000
- Species Neidium angustatum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium angustirostratum H.Lange-Bertalot, P.Cavacini, N.Tagliaventi & S.Alfinito, 2003
- Species Neidium anisus Foged, 1971
- Species Neidium antarcticum P.B.Hamilton, M.de Haan, K.Kopalová, R.Zidarova & B.van de Vijver, 2013
- Species Neidium antiquum Schulz, 1926 †
- Species Neidium apiculatoides Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium apiculatum Reimer, 1959
- Species Neidium arenarzense H.Lange-Bertalot, P.Cavacini, N.Tagliaventi & S.Alfinito, 2003
- Species Neidium aubertii Manguin in Bourrelly & Manguin, 1954
- Species Neidium avenaceum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium bacillum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium baicalense Jasnitsky
- Species Neidium baicalensis
- Species Neidium barbassii F. W. Mills, 1934
- Species Neidium beatyi Hamilton et al., 2019
- Species Neidium bergii (Cleve-Euler) Krammer, 1985
- Species Neidium bifurcatum Heiden in Schmidt et al., 1906
- Species Neidium bigibborum Zhu & Chen, 1995 accepted as Neidium didelta Hustedt, 1922
- Species Neidium binode (Ehrenberg) Hustedt, 1945 accepted as Neidiomorpha binodis (Ehrenberg) M.Cantonati, Lange-Bertalot & N.Angeli, 2010
- Species Neidium binodiforme Krammer, 1985
- Species Neidium bisulcata
- Species Neidium bisulcatum (Lagerstedt) Cleve, 1894
- Species Neidium bobmarshallense L.Bahls, 2013 accepted as Neidium elpatievskyi (Østrup) Vishnjakov, 2015
- Species Neidium borari A.C. Pereira, S. Melo, L. Torgan, R.G.R. Vidal, J.P. Kociolek & J.T.S. Alves
- Species Neidium borbassii (Pantocsek) F.W. Mills, 1934
- Species Neidium boreale Foged, 1971
- Species Neidium boyeri Reimer, 1959
- Species Neidium bruunii Foged, 1957
- Species Neidium buhrianum D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium calvum Østrup, 1910
- Species Neidium cape-codii P.A. Siver & P.B. Hamilton in P.A. Siver, P.B. Hamilton & K. Stachura-Suchoples, 2003
- Species Neidium capitatum McCall, 1933
- Species Neidium capitellata Gandhi, 1959
- Species Neidium capsulare E.W.Thomas & J.P.Kociolek, 2008
- Species Neidium carterii Krammer, 1975
- Species Neidium catarinense (Krasske) Lange-Bertalot in Lange-Bertalot, Kulbs, Lauser, Norpel-Schempp & Willmann, 1996
- Species Neidium chenii Y.Liu & J.P.Kociolek, 2013
- Species Neidium circumarcticum D. Metzeltin & H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & S. Nergui, 2009
- Species Neidium citreum (Schmidt & Schmidt et al.) Cleve, 1894
- Species Neidium collare Hamilton et al., 2019
- Species Neidium columnaris
- Species Neidium constrictum Mereschkowsky, 1903
- Species Neidium constrictum Zhu & Chen, 1995
- Species Neidium continentale M.S.Kulikovskiy, H.Lange-Bertalot & A.Witkowski in Kulikovskiy et al., 2010
- Species Neidium convexum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium convolutum Y.Liu & Kociolek
- Species Neidium coralieae Metzeltin & Krammer in Metzeltin & Lange-Bertalot, 1998
- Species Neidium cuneatiforme Z.Levkov, 2007
- Species Neidium cuneatum Krammer & Metzeltin in Metzeltin & Lange-Bertalot, 1998
- Species Neidium curtihamatum H.Lange-Bertalot, P.Cavacini, N.Tagliaventi & S.Alfinito, 2003
- Species Neidium cuspidata
- Species Neidium dayiense Foged, 1966
- Species Neidium decens (Pantocsek) Stoermer, 1963
- Species Neidium decoratum Brun, 1901
- Species Neidium demerariense Krammer & Metzeltin in Metzeltin & Lange-Bertalot, 1998
- Species Neidium densistriatum (Østrup) Krammer, 1985
- Species Neidium dicephalum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium didelta Hustedt, 1922
- Species Neidium dilatatum (Ehrenberg) Cleve, 1894
- Species Neidium dippelii
- Species Neidium distincta-punctatum Hustedt, 1930
- Species Neidium distinctepunctatum Hustedt, 1922
- Species Neidium distincte-punctatum Hustedt, 1922
- Species Neidium distinguendum D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium dubiforme Krammer & Metzeltin in Metzeltin & Lange-Bertalot, 1998
- Species Neidium dubitatum Comber, 1901
- Species Neidium dubium (Ehenberg) Cleve, 1894
- Species Neidium ehrenbergii Metzeltin & Lange-Bertalot, 2007
- Species Neidium ellipticis Zhu & Chen, 1995
- Species Neidium ellipticum Voigt, 1942
- Species Neidium elongatum (Hustedt) H.Lange-Bertalot, D.Metzeltin & Krammer, 1996
- Species Neidium elpatievskyi (Østrup) Vishnjakov, 2015
- Species Neidium essequiboanum Metzeltin & Krammer in Metzeltin & Lange-Bertalot, 1998
- Species Neidium excisum Krammer & Metzeltin in Metzeltin & Lange-Bertalot, 1998
- Species Neidium fairbanksense Foged, 1968
- Species Neidium falklandium Kociolek & Stoermer in Kociolek, Stoermer & Edlund, 1995
- Species Neidium fasciatum Østrup, 1910
- Species Neidium firma (Kützing) Pfitzer, 1871
- Species Neidium firmum (Kützing) Pfitzer, 1871
- Species Neidium firmum (Kützing, 1844: 92) P.B.Hamilton & K.Lefebvre, 2015
- Species Neidium floridanum Reimer, 1959
- Species Neidium fogedii L.Bahls, 2013
- Species Neidium fossum K.Lefebvre & P.B.Hamilton, 2015
- Species Neidium friedrichii Gandhi, 1961
- Species Neidium frigidum Foged, 1971
- Species Neidium glaberrimum (Østrup) R.Ross, 1986
- Species Neidium globiceps (A.Cleve) A.Cleve, 1955
- Species Neidium gracile Hustedt, 1937
- Species Neidium grandis Gandhi, 1959
- Species Neidium grunowii Compère, 1975
- Species Neidium hamatum Metzeltin & Krammer in Metzeltin & Lange-Bertalot, 1998
- Species Neidium hamiltonii Kociolek in Kociolek et al., 2014
- Species Neidium hankensis Skvortzow, 1929
- Species Neidium hercynicum Mayer, 1917
- Species Neidium herrmanni Hustedt, 1938
- Species Neidium hitchcockii (Ehrenberg) Cleve, 1894
- Species Neidium holstii (Cleve) Krammer in Krammer & Lange-Bertalot, 1985
- Species Neidium huitfeldtii Holmboe, 1900
- Species Neidium hustedtii (?H.P.Gandhi) accepted as Neidium friedrichii Gandhi, 1961
- Species Neidium improvisum D. Metzeltin & H. Lange-Bertalot, 2002
- Species Neidium inconspicuum Hustedt, 1921
- Species Neidium inconstans Sovereign, 1963
- Species Neidium incurvum (Gregory) Østrup, 1918
- Variety Neidium incurvum var. denudatum (Østrup) Cleve-Euler, 1955 accepted as Neidium fasciatum var. denudatum Østrup, 1910
- Variety Neidium incurvum var. directum Cleve-Euler, 1955
- Variety Neidium incurvum var. fasciatum (Østrup) Cleve-Euler, 1955 accepted as Neidium fasciatum var. fasciatum Østrup, 1910
- Variety Neidium incurvum var. gregorii Cleve-Euler, 1955
- Variety Neidium incurvum var. incurvum (Gregory) Østrup, 1918
- Forma Neidium incurvum f. pusilla Cleve-Euler, 1955
- Species Neidium indicum Gonzalves & H.P.Gandhi, 1953
- Species Neidium infirmum Metzeltin & Krammer in Metzeltin & Lange-Bertalot, 1998
- Species Neidium iridescens (Mann) VanLandingham, 1975 †
- Species Neidium iridis (Ehrenberg) Cleve, 1894
- Species Neidium islandicum Østrup, 1918
- Species Neidium itapariensis A.C. Pereira, J.T.S. Alves, J.P. Kociolek & S. Melo
- Species Neidium javanicum Hustedt, 1938
- Species Neidium jogensis Gandhi, 1970
- Species Neidium juba J.R.Carter, 1981
- Species Neidium jutlandicum Cleve-Euler, 1955
- Species Neidium khentiiense D. Metzeltin, H. Lange-Bertalot & S. Nergui, 2009
- Species Neidium knuthii Foged, 1955
- Species Neidium kozlowi Mereschkowsky, 1906
- Species Neidium kozlowii Mereschkovsky, 1906
- Species Neidium krasskei D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium kumasiense Foged, 1966
- Species Neidium lacusbaikali Skvortzow, 1937
- Species Neidium lacusflorum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium ladogense (Cleve) Foged, 1952
- Species Neidium lanceolata Skvortzow, 1937
- Species Neidium latum Krammer & Metzeltin in Metzeltin & Lange-Bertalot, 1998
- Species Neidium lavoieanum Hamilton et al., 2019
- Species Neidium lentis Carter & Denny, 1987
- Species Neidium levanderi (Hustedt) Lange-Bertalot & Metzeltin, 1996
- Species Neidium ligulatum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium limnophilum Kociolek in Kociolek et al., 2014
- Species Neidium limosa (Kützing) Pfitzer, 1871 accepted as Caloneis limosa (Kützing) R.M.Patrick, 1966
- Species Neidium limuae Liu & Kociolek, 2014
- Species Neidium lineare Østrup, 1918
- Species Neidium linearis (Grunow) M.Brun accepted as Navicula linearis Grunow, 1860
- Species Neidium longiceps (Gregory) Cleve-Euler, 1955
- Species Neidium maculatum Maillard, 1962
- Species Neidium magdalenae Manguin in Bourrelly & Manguin, 1952
- Species Neidium magellanicum Cleve
- Species Neidium maius Jurilj, 1954
- Species Neidium majus Z.Levkov, 2007
- Species Neidium manshuricum Skvortzow, 1946
- Species Neidium marathwadense Sarode & Kamat, 1984
- Species Neidium marraitensis Foged, 1958
- Species Neidium maximum (Cleve) Meister, 1912
- Species Neidium meadeense Foged, 1968
- Species Neidium meisteri Hustedt, 1943
- Species Neidium meyeri Vishnjakov, Kulikovskiy & Genkal, 2015
- Species Neidium minus Tosh.Watan. et al. ex Tuji
- Species Neidium minutissima Krasske, 1932
- Species Neidium minutissimum Krasske, 1932
- Species Neidium minutissimum Cleve-Euler, 1934
- Species Neidium minutissimum Cleve-Euler in Thunmark, 1926
- Species Neidium miopsa Carter & Denny, 1992
- Species Neidium mirabile Hustedt, 1922
- Species Neidium mirum Krasske, 1943
- Species Neidium moeszianum Pantocsek & Greguss in Greguss, 1913
- Species Neidium munckii Foged, 1955
- Species Neidium muyrakytan A.C. Pereira, J.P. Kociolek & S. Melo, 2023
- Species Neidium neotropicum D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium nipponica Skvortzow, 1936 accepted as Neidium obliquestriatum var. nipponicum (Skvortzov, 2012)
- Species Neidium nipponicum
- Species Neidium nivale Foged, 1971
- Species Neidium nsuaemense Foged, 1966
- Species Neidium nugsuaqensis Foged, 1958
- Species Neidium nyvltii P.B.Hamilton, M. de Haan, K.Kopalová, R.Zidarova & B.van de Vijver, 2013
- Species Neidium obliquestriatum (A.Schmidt) Cleve, 1894
- Species Neidium obliquestriatum sensu Cleve-Euler in Backman & Cleve-Euler, 1922
- Species Neidium oblique-striatum
- Species Neidium obliquum Metzeltin & Krammer in Metzeltin & Lange-Bertalot, 1998
- Species Neidium oblongum Tynni, 1976
- Species Neidium oblongum Zhu & Chen, 1995 accepted as Neidium rectum Hustedt, 1922
- Species Neidium occidentale Kociolek in Kociolek et al., 2014
- Species Neidium odamii Bastow, 1954
- Species Neidium opacelineatum Riznyk, 1973
- Species Neidium opulentum Hustedt, 1939
- Species Neidium palpebrum K.Stachura-Suchoples, J.P.Kociolek & P.A.Siver, 2010
- Species Neidium panduriforme Østrup, 1918
- Species Neidium panhalgarhensis H.P.Gandhi, 1959
- Species Neidium pantocsekii (Meister) F.W. Mills, 1934 accepted as Scolioneis pantocsekii Meister, 1919
- Species Neidium paraffine H.Lange-Bertalot, P.Cavacini, N.Tagliaventi & S.Alfinito, 2003
- Species Neidium pauper (Mann) VanLandingham, 1978 accepted as Navicula pauper Mann, 1925
- Species Neidium peisonis (Grunow) Gallik
- Species Neidium perforatum Schimanski, 1973
- Species Neidium perminutum Cleve-Euler, 1934
- Species Neidium peruvianum Manguin, 1964
- Species Neidium platense Frenguelli, 1941
- Species Neidium plexum Carter & Denny, 1987
- Species Neidium polygibbum (Brun) D. Metzeltin & H. Lange-Bertalot, 2002
- Species Neidium popeiensis Carter & Denny, 1992
- Species Neidium preschevalski
- Species Neidium productum (W.Smith) Cleve, 1894
- Species Neidium pseudiridis Cleve-Euler, 1948
- Species Neidium pseudoaffinis (Mann) VanLandingham, 1975 accepted as Navicula pseudoaffinis Mann, 1925
- Species Neidium pseudodensestriatum K.Stachura-Suchoples & J.P.Kociolek, 2004
- Species Neidium pseudogracilis Kobayasi in Kobayasi & Ando, 1977
- Species Neidium punctulatum Hustedt, 1922
- Species Neidium qia Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium quadratum Kociolek in Kociolek et al., 2014
- Species Neidium quadripunctata Fusey, 1964
- Species Neidium quadriundulatum D. Metzeltin & H. Lange-Bertalot, 2002
- Species Neidium radiosum Voigt, 1942
- Species Neidium rectum Hustedt, 1922
- Species Neidium reimeri John, 1981
- Species Neidium rhodanum (J.Brun) J.Brun, 1901
- Species Neidium roenningii Foged, 1964
- Species Neidium roland-schmidtii D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium rosenkrantzii Foged, 1958
- Species Neidium rostellatum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium rostratum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium rudimentarum Reimer, 1959
- Species Neidium rugosum P.B.Hamilton, M.G.Potapova & L.I.Kopyrina, 2014
- Species Neidium sacoense Reimer, 1966
- Species Neidium sacoensis Reimer, 1959
- Species Neidium sardiniense H.Lange-Bertalot, P.Cavacini, N.Tagliaventi & S.Alfinito, 2003
- Species Neidium sauramoi Mölder, 1937
- Species Neidium schmidtii Reimer, 1959
- Species Neidium septentrionalis A.Cleve, 1939
- Species Neidium simplex (Lange-Bertalot & Moser in Moser et al.) Lange-Bertalot in D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium siveri D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium skvortzowii Kobayasi in Kobayasi & Ando, 1977
- Species Neidium spectatum Kociolek in Kociolek et al., 2014
- Species Neidium spitsbergense Foged, 1964
- Species Neidium statuarium P.B.Hamilton & P.Siver, 2005
- Species Neidium sterrenburgii D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium stoermeri E.W.Thomas & J.P.Kociolek, 2008
- Species Neidium subamphigomphus Krammer & Metzeltin in Metzeltin & Lange-Bertalot, 1998
- Species Neidium subampliatum (Grunow) R. Flower, 2005
- Species Neidium subdubium Metzeltin & Krammer in Metzeltin & Lange-Bertalot, 1998
- Species Neidium suboblongum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium subproductum D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium suoxiyuae Y.Liu & J.P.Kociolek, 2013
- Species Neidium tabelliforme E. Reichardt, 2004
- Species Neidium tabletta Carter & Denny, 1992
- Species Neidium taiaensis Carter & Denny, 1982
- Species Neidium tanganyikae (G.S. West) F.W. Mills, 1934 accepted as Navicula tanganyikae G.S.West, 1907
- Species Neidium temperei C.W.Reimer, 1959
- Species Neidium tenellum Mayer, 1919
- Species Neidium tenue Østrup, 1910
- Species Neidium tenuissimum Hustedt, 1943
- Species Neidium terrestre Bock, 1970
- Species Neidium testa J.R.Carter, 1981
- Species Neidium tibetianum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium tibeticum Y.Liu & J.P.Kociolek, 2013
- Species Neidium tokyoense Kobayasi in Kobayasi & Ando, 1977
- Species Neidium topia (Pantocsek) F.W. Mills, 1934 accepted as Navicula topia Pantocsek, 1902
- Species Neidium tortum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium trainori P. Siver & P. Hamilton in Siver et al., 2009
- Species Neidium trainorii P.A.Siver & P.B.Hamilton, 2009
- Species Neidium triundulatum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Species Neidium tumescens (Grunow) Cleve, 1894
- Species Neidium umiatense Foged, 1968
- Species Neidium undulatum L.Bahls, 2013
- Species Neidium vandusenense Hamilton et al., 2019
- Species Neidium vanlandinghamii D. Metzeltin & H. Lange-Bertalot, 2007
- Species Neidium vekhovii Lange-Bertalot & S.I.Genkal, 1998
- Species Neidium vernale (Reichelt) Metzeltin & Lange-Bertalot, 2007
- Species Neidium vietnamensis Glushchenko, Kulikovskiy & Kociolek
- Species Neidium viride
- Species Neidium wagnerianum Pantocsek & Greguss in Greguss, 1913
- Species Neidium yangbajingenes Huang, 1979
- Species Neidium zafarii Sarode & Kamat, 1984
- Species Neidium zhui Y.Liu & J.P.Kociolek, 2013
- Species Neidium zoigeaeum Q.Liu, Q.X.Wang & Kociolek in Liu et al., 2017
- Genus Olifantiella C. Riaux-Gobin & P. Compère, 2009 (11)
- Suborder Phaeodactylineae
- Suborder Sellaphorineae
- Family Amphipleuraceae Grunow, 1862 (162)
- Family Diploneidaceae D. G. Mann, 1990 (116)
- Family Metascolioneidaceae S.Blanco & C.E.Wetzel, 2016 (2)
- Family Naviculaceae Kützing, 1844 (866)
- Family Naviculales incertae sedis (7)
- Family Pinnulariaceae D.G. Mann, 1990 (254)
- Family Pleurosigmataceae Mereschkowsky, 1903 (98)
- Family Scolioneidaceae
- Family Scoliotropidaceae Mersechk. (6)
- Family Sellaphoraceae Mereschkowsky, 1902 (74)
- Family Stauroneidaceae D.G. Mann, 1990 (150)
- Order Rhopalodiales (37)
- Order Surirellales (174)
- Order Thalassiophysales (105)
- Superorder Bacillariophycidae incertae sedis (32)
- Superorder Eunotiophycanae (293)
- Subclass Coscinodiscophycidae (878)
- Subclass Fragilariophycidae (483)
- Order Centrales
