DiatomBase
Between brackets is the number of accepted extant species
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- Bacillariophyceae (5 957)
- Subclass Bacillariophyceae incertae sedis (189)
- Subclass Bacillariophycidae (4 408)
- Superorder Bacillariophycanae (4 083)
- Order Achnanthales (438)
- Family Achnanthaceae Kützing, 1844 (111)
- Family Achnanthidiaceae D.G. Mann, 1990 (244)
- Family Cocconeidaceae Kützing, 1844 (83)
- Genus Anorthoneis A. Grunow, 1868 (10)
- Genus Australoneis J.M.Guerrero & Riaux-Gobin, 2021 (1)
- Genus Bennettella R.W. Holmes, 1985 (1)
- Genus Campyloneis A. Grunow, 1862 (1)
- Genus Cocconeis C.G. Ehrenberg, 1837 (69)
- Species Cocconeis acuta Ehrenberg, 1854
- Species Cocconeis acutata Rabenhorst, 1864
- Species Cocconeis adeliae E. Manguin, 1960
- Species Cocconeis adjuncta Schmidt in Schmidt et al., 1894
- Species Cocconeis adriatica Kützing, 1844
- Species Cocconeis aemula Schmidt in Schmidt et al., 1894
- Species Cocconeis aggregata Kützing, 1844
- Species Cocconeis ahlefeldii Janisch in Schmidt et al., 1894
- Species Cocconeis algida Cleve-Euler, 1953
- Species Cocconeis aliena Schmidt in Schmidt et al., 1895
- Species Cocconeis allmanniana (Gregory) Grunow, 1867 accepted as Pinnularia allmaniana Gregory, 1857
- Species Cocconeis alucitae Riaux-Gobin & Compère, 2008
- Species Cocconeis ambigua
- Species Cocconeis americana Ehrenberg, 1841 (1843)
- Species Cocconeis amerieuglypta L.F.Costa, C.E.Wetzel & Ector
- Species Cocconeis amphiceros Ehrenberg, 1840
- Species Cocconeis amydrofilum Riznyk, 1973
- Species Cocconeis amygdalina Grunow, 1880
- Species Cocconeis andersonii Reimer & Lee, 1988
- Species Cocconeis andesitica Pantocsek, 1889
- Species Cocconeis angermannica Cleve-Euler, 1953
- Species Cocconeis angusta Ehrenberg, 1854
- Species Cocconeis ankobraensis Foged, 1966
- Species Cocconeis antarctica N.E. Brown, 1920
- Species Cocconeis antarctica (Van Heurck) J.Frenguelli & H.A. Orlando, 1958 accepted as Cocconeis japonica var. antarctica H.F.Van Heurck, 1909
- Species Cocconeis antiqua J.A.Tempère & J.-J.Brun, 1889 †
- Species Cocconeis apiculata (Greville) A.W.F.Schmidt, 1895 accepted as Stauroneis apiculata Greville, 1859
- Species Cocconeis apiculata Karsten, 1899
- Species Cocconeis archeri O' Meara, 1874
- Species Cocconeis archibaldii Schoeman in Schoeman & Meaton, 1982
- Species Cocconeis arcta Schmidt in Schmidt et al., 1894
- Species Cocconeis arctica Cleve, 1873
- Species Cocconeis arenicola Riznyk, 1973
- Species Cocconeis arenicola Riznyk emend. Al-Handal & Riaux-Gob. in Al-Handal et al., 2019
- Species Cocconeis argus J.W. Bailey in Bailey Collection
- Species Cocconeis armata Greville, 1866
- Species Cocconeis arraniensis Greville, 1859
- Species Cocconeis atmosphaerica Ehrenberg, 1854
- Species Cocconeis atomus (Kützing) G.L.Rabenhorst, 1863
- Species Cocconeis australis Petit, 1877
- Species Cocconeis baikalensis (Skvortzow & Meyer) Skvortzow, 1946 accepted as Cocconeis placentula var. baicalensis Skvortzov & Meyer, 1928
- Species Cocconeis balatonis Pantocsek, 1902
- Species Cocconeis baldjikiana (Grunow) Grunow in Schmidt et al., 1894 accepted as Cocconeis scutellum var. baldjikiana (Grunow) Cleve
- Species Cocconeis baltica Schumann, 1867
- Species Cocconeis barbadensis Greville, 1864
- Species Cocconeis bardawilensis Ehrlich, 1975
- Species Cocconeis barleyi T.A.Frankovich & M.De Stefano, 2005
- Species Cocconeis belawani (Meister) Kolbe, 1957 accepted as Disconeis belawani Meister, 1932
- Species Cocconeis beltmeyeri Janisch in Schmidt et al., 1894
- Species Cocconeis benrathi Steinecke, 1915
- Species Cocconeis bifida Eichwald, 1847
- Species Cocconeis biflexa A.Schmidt, 1874
- Species Cocconeis biharensis Pantocsek
- Species Cocconeis bilicis Meister, 1937
- Species Cocconeis binotata Grunow, 1863 accepted as Mastogloia binotata (Grunow) Cleve, 1895
- Species Cocconeis biradiata Brun in Schmidt et al., 1894
- Species Cocconeis blandicula Schmidt in Schmidt et al., 1894
- Species Cocconeis bonnieri Héribaud, 1903
- Species Cocconeis borbonica Riaux-Gobin & Compère, 2008
- Species Cocconeis borealis Ehrenberg, 1841 (1843)
- Species Cocconeis boryana Pantocsek, 1892
- Species Cocconeis bramaputrae Ehrenberg, 1854
- Species Cocconeis brasiliensis Ehrenberg in Ralfs in Pritchard, 1861
- Species Cocconeis brevicostata Hustedt
- Species Cocconeis brevicostata Hustedt
- Species Cocconeis britannica Naegeli ex Kützing, 1849
- Species Cocconeis brundusiaca Rabenhorst, 1853
- Species Cocconeis calcar (Cleve) Cleve-Euler, 1953 accepted as Achnanthes calcar f. calcar Cleve, 1891
- Species Cocconeis calderoni Azpeitia, 1911
- Species Cocconeis california
- Species Cocconeis californica Grunow, 1880
- Species Cocconeis callosa Meister, 1937
- Species Cocconeis campechiana Cleve in Schmidt et al., 1894
- Species Cocconeis campechiana Grunow in Schmidt et al., 1894
- Species Cocconeis canaliculata Jurilj, 1957
- Species Cocconeis capensis (Cholnoky) A. Witkowski in A. Witkowski, H. Lange-Bertalot & D. Metzeltin, 2000 accepted as Cocconeis clandestina var. capensis Cholnoky, 1963
- Species Cocconeis capitata Rabenhorst, 1855
- Species Cocconeis caribensis O. E. Romero & J. N. Navarro, 1999
- Species Cocconeis carinata Riaux-Gobin, Ector & Witkowski
- Species Cocconeis carminata Cholnoky, 1968
- Species Cocconeis cascadensis Stancheva, 2019
- Species Cocconeis cataractarum Hustedt, 1937 accepted as Psammothidium cataractarum (Hustedt) Kulikovskiy, Glushchenko & Kociolek, 2020
- Species Cocconeis cataractarum Hustedt in Schmidt, 1936 accepted as Psammothidium cataractarum (Hustedt) Kulikovskiy, Glushchenko & Kociolek, 2020
- Species Cocconeis caulerpacola Witkowski, Car & Dobosz, 2012
- Species Cocconeis ceticola E.W.Nelson accepted as Bennettella ceticola (E.W.Nelson) R.W.Holmes, 1985
- Species Cocconeis charcotii M. Peragallo, 1921
- Species Cocconeis cholnokyana Cleve-Euler, 1934
- Species Cocconeis churalis H. Suzuki, 2012
- Species Cocconeis cincta Schmidt in Schmidt et al., 1894
- Species Cocconeis cingulata Hustedt, 1942
- Species Cocconeis circulifera Mann, 1925
- Species Cocconeis circumcincta Schmidt in Schmidt et al., 1894
- Species Cocconeis citrina Schmidt in Schmidt et al., 1895
- Species Cocconeis citrina Zanon, 1938
- Species Cocconeis citronella Mann, 1925
- Species Cocconeis citrus E. Manguin, 1949
- Species Cocconeis clandestina A.Schmidt, 1894
- Species Cocconeis clavigera O'Meara, 1867
- Species Cocconeis clypeus Ehrenberg, 1838
- Species Cocconeis coarctata Schmidt in Schmidt et al., 1894
- Species Cocconeis coelata Arnott ex Greville, 1862
- Species Cocconeis coelatus Walker-Arnott ms. ex Greville, 1862
- Species Cocconeis comis Schmidt in Schmidt et al., 1894
- Species Cocconeis communis Heiberg, 1863
- Species Cocconeis communis Reinhardt, 1883
- Species Cocconeis composita A.W.F.Schmidt
- Species Cocconeis concentrica Ehrenberg, 1841 (1843)
- Species Cocconeis confusa J.R.Carter, 1981
- Species Cocconeis consociata Kützing, 1844
- Species Cocconeis conspicua Schmidt in Schmidt et al., 1894
- Species Cocconeis contermina A.W.F.Schmidt, 1894
- Species Cocconeis contrerasi Hanna & Grant, 1926
- Species Cocconeis convexa M.H.Giffen, 1967
- Species Cocconeis coralliensis Riaux-Gobin & Compère, 2008
- Species Cocconeis coreana R. Jahn & B. M. Suh in Jahn et al., 2020
- Species Cocconeis cornuta Janisch in Schmidt et al., 1895
- Species Cocconeis coronata T.Brightwell, 1859
- Species Cocconeis coronata Riaux-Gobin & Romero, 2010 accepted as Cocconeis coronatoides Riaux-Gobin & Romero, 2011
- Species Cocconeis coronatoides Riaux-Gobin & Romero, 2011
- Species Cocconeis costata Gregory, 1855
- Species Cocconeis costata Janisch, 1862
- Species Cocconeis crebrestriata Greville, 1857
- Species Cocconeis cribrosa Cleve
- Species Cocconeis crispa Edsbagge, 1968
- Species Cocconeis crozetensis Romero & Van de Vijver
- Species Cocconeis cruciata Pantocsek, 1886
- Species Cocconeis crux Ehrenberg, 1844 (1845)
- Species Cocconeis crux Petit, 1877
- Species Cocconeis cunoniae Cholnoky, 1963
- Species Cocconeis curiosa Hustedt, 1958
- Species Cocconeis curvirotunda Tempère & Brun, 1889 † accepted as Cocconeis heteroidea var. curvirotunda (Tempère & J.-J.Brun) Cleve, 1895
- Species Cocconeis curvirotunda Forti, 1910
- Species Cocconeis cyclophora Grunow in Van Heurck, 1880
- Species Cocconeis cymatoda Schrader, 1969
- Species Cocconeis czarneckii Stancheva, L.D. Mora & R. Jahn in Mora et al., 2022
- Species Cocconeis dallmannii Al-Handal, Riaux-Gobin, Romero & Wulff, 2008
- Species Cocconeis danica Flogel, 1873
- Species Cocconeis debenedettii Frenguelli & Orlando, 1958
- Species Cocconeis debesi Hustedt, 1933
- Species Cocconeis debesii
- Species Cocconeis decipiens Cleve, 1873
- Species Cocconeis decussata Ehrenberg, 1841 (1843)
- Species Cocconeis dehiscens Schmidt in Schmidt et al., 1895
- Species Cocconeis delalineata M.H.Hohn, 1961
- Species Cocconeis delapunctata M.H.Hohn, 1961
- Species Cocconeis delicata Schmidt in Schmidt et al., 1894
- Species Cocconeis denticula Leuduger-Fortmorel, 1879
- Species Cocconeis denticulata Leuduger-Fortmorel, 1879
- Species Cocconeis deperdita Giffen, 1975
- Species Cocconeis depressa Kützing, 1844
- Species Cocconeis detoniana Pantocsek, 1892
- Species Cocconeis diaphana W.Smith, 1853
- Species Cocconeis dilatata T.Marsson, 1900
- Species Cocconeis diminuta Pantocsek, 1902 accepted as Cocconeis neodiminuta Krammer, 1990
- Species Cocconeis diplous Sinjukova, 1960
- Species Cocconeis dirupta W.Gregory, 1857
- Species Cocconeis dirupta Ehrenberg in Schmidt et al., 1895
- Species Cocconeis dirupta Meunier, 1910
- Species Cocconeis diruptoides Hustedt, 1959
- Species Cocconeis disciformis Ehrenberg, 1854
- Species Cocconeis discrepans A.W.F.Schmidt, 1894 accepted as Amphicocconeis discrepans (A.W.F. Schmidt, 1894) Riaux-Gobin, Witkowski, Ector & Igersheim in Riaux-Gobin et al., 2018
- Species Cocconeis disculoides Hustedt, 1955 accepted as Amphicocconeis disculoides (Hustedt) Stefano & Marino, 2003
- Species Cocconeis disculus (Schumann) Cleve, 1882
- Species Cocconeis dispar Schmidt in Schmidt et al., 1894
- Species Cocconeis distans W.Gregory, 1855
- Species Cocconeis distans Schmidt in Schmidt et al., 1894
- Species Cocconeis distantula Giffen, 1967
- Species Cocconeis diversa J.R.Carter, 1981
- Species Cocconeis divisa Schmidt in Schmidt et al., 1895
- Species Cocconeis dubravicensis Pantocsek, 1892
- Species Cocconeis duplex Schmidt in Schmidt et al., 1894
- Species Cocconeis egena A.Schmidt, 1894
- Species Cocconeis egregia Moser, Steindorf & Lange-Bertalot, 1995
- Species Cocconeis elegans Ardissone, 1864
- Species Cocconeis elongata Ehrenberg, 1841
- Species Cocconeis emmerici Janisch in Schmidt et al., 1895
- Species Cocconeis engelbrechtii Cholnoky, 1955
- Species Cocconeis entomon Cleve-Euler, 1915
- Species Cocconeis eocaenica Schrader, 1969
- Species Cocconeis euglypta Ehrenberg, 1854
- Species Cocconeis euglyptoides (Geitler) H. Lange-Bertalot in Werum & Lange-Bertalot, 2004 accepted as Cocconeis placentula var. euglyptoides L.Geitler, 1958
- Species Cocconeis evolvens Jurilj, 1957
- Species Cocconeis exarata Grunow, 1868
- Species Cocconeis excentrica Donkin, 1858
- Species Cocconeis excentrica Gutwinski, 1890
- Species Cocconeis exigua (Grunow) Schönfeldt, 1907
- Species Cocconeis exigua Torka, 1909
- Species Cocconeis exilis (Kützing) Schonfeldt, 1907
- Species Cocconeis eximia Schmidt in Schmidt at al., 1894
- Species Cocconeis exoptata Schmidt in Schmidt et al., 1894
- Species Cocconeis extravagans Janisch in Schmidt et al., 1894
- Species Cocconeis fasciata Ehrenberg, 1841 (1843)
- Species Cocconeis fasciolata (Ehrenberg) N.E.Brown, 1920 accepted as Rhaphoneis fasciolata var. fasciolata Ehrenberg, 1844
- Species Cocconeis febigeri (Christian) Brun in Schmidt et al., 1894 accepted as Raphidodiscus febigeri Christian, 1887 †
- Species Cocconeis fenestratus (Greville) Mills, 1933 accepted as Campylodiscus fenestratus Greville, 1857
- Species Cocconeis fennica Ulskii, 1864
- Species Cocconeis festiva Schmidt in Schmidt et al., 1895
- Species Cocconeis feuerborni Hustedt, 1937
- Species Cocconeis feuerborni Hustedt in Schmidt, 1936
- Species Cocconeis fimbriata Ehrenberg, 1858
- Species Cocconeis fimbriata Brightwell, 1859
- Species Cocconeis finnica Ehrenberg, 1838
- Species Cocconeis finnmarchica Grunow, 1880
- Species Cocconeis flexella (Kützing) Cleve, 1895 accepted as Eucocconeis flexella (Kützing) Meister, 1912
- Species Cocconeis flexella Janisch & Rabenhorst, 1863
- Species Cocconeis fluminensis (Grunow) H.Peragallo & M.Peragallo, 1897
- Species Cocconeis fluviatilis J.H.Wallace, 1960
- Species Cocconeis formosa J.-J.Brun
- Species Cocconeis fraseri MacKay in L.W. Bailey & MacKay, 1915
- Species Cocconeis fraterna Schmidt in Schmidt et al., 1894
- Species Cocconeis fraudulens Simonsen, 1987
- Species Cocconeis frustrationis Riaux-Gobin et al., 2015
- Species Cocconeis fulgur Brun, 1891
- Species Cocconeis gaussii Heiden in Heiden & Kolbe, 1928
- Species Cocconeis gautieri van Heurck, 1909 accepted as Cocconeis antiqua J.A.Tempère & J.-J.Brun, 1889 †
- Species Cocconeis gautierii H.F.Van Heurck
- Species Cocconeis gemmata Ehrenberg, 1854
- Species Cocconeis gemmifera Ehrenberg, 1854
- Species Cocconeis germainii Riaux-Gobin, C.; Witkowski, A. & Romero, O.E., 2007
- Species Cocconeis gibberula (Grunow) Hustedt
- Species Cocconeis gibbocalyx J.-J.Brun, 1891
- Species Cocconeis gieskesii Cholnoky, 1963
- Species Cocconeis glacialis Schmidt in Schmidt et al., 1894
- Species Cocconeis glacialis Cleve, 1873
- Species Cocconeis glans Ehrenberg, 1854
- Species Cocconeis grantiana Greville, 1861
- Species Cocconeis granulata Meister, 1937
- Species Cocconeis granulata Grunow, 1877-1882
- Species Cocconeis granulifera Greville, 1861
- Species Cocconeis grata A.W.F.Schmidt ex Romero & Riaux-Gobin, 2014
- Species Cocconeis grata Østrup, 1902
- Species Cocconeis gregoryi C.Riaux-Gobin, P.Compère & L.Ector, 2014
- Species Cocconeis grevillei W.Smith, 1853
- Species Cocconeis groenlandica Ehrenberg, 1872 (1873)
- Species Cocconeis grossii Héribaud in Héribaud et al., 1920
- Species Cocconeis grovei Schmidt in Schmidt et al., 1894
- Species Cocconeis grovei sensu Østrup, 1910
- Species Cocconeis grunovii Schmidt in Schmidt in Schmidt et al., 1894
- Species Cocconeis grunowii Pantocsek, 1889
- Species Cocconeis guttata Hustedt & Aleem, 1951
- Species Cocconeis gymna Schrader, 1969
- Species Cocconeis haradaae Pantocsek, 1892
- Species Cocconeis hariotii Petit, 1888
- Species Cocconeis hauniensis A.Witkowski, 1993
- Species Cocconeis helvetica J.-J.Brun
- Species Cocconeis heteroidea Hantzsch
- Species Cocconeis hexagona (J.-J.Brun & Cleve) Cleve accepted as Achnanthes hexagona Cleve & Brun in Brun, 1891
- Species Cocconeis heydrichii H.F.Van Heurck, 1909
- Species Cocconeis hirsuta Cholnoky, 1963
- Species Cocconeis hoffmanni Simonsen, 1959
- Species Cocconeis hospes Schmidt in Schmidt et al., 1895
- Species Cocconeis hungarica (Grunow) Schönfeldt, 1907 accepted as Achnanthidium hungaricum Grunow, 1863
- Species Cocconeis hungarica Hajós, 1959
- Species Cocconeis hustedtii Krasske, 1923
- Species Cocconeis hyalina Pantocsek, 1902
- Species Cocconeis hyperborea Ehrenberg, 1853
- Species Cocconeis illustris Schmidt in Schmidt et al., 1894
- Species Cocconeis imperatrix A.W.F.Schmidt, 1894 accepted as Cocconeis fasciolata (Ehrenberg) N.E.Brown, 1920
- Species Cocconeis inconspicua Greville, 1857
- Species Cocconeis indica Ehrenberg, 1854
- Species Cocconeis infirmata Manguin, 1957
- Species Cocconeis inflexa Schmidt in Schmidt et al., 1894
- Species Cocconeis insignis Janisch in Schmidt et al., 1895
- Species Cocconeis insueta Schmidt in Schmidt et al., 1894
- Species Cocconeis intermedia Peragallo & Héribaud in Héribaud, 1893 emend C.E.Wetzel, G.G.Lai, Ector & Jüttner in Lai et al., 2020
- Species Cocconeis intermedia Grunow in Cleve & Möller, 1878
- Species Cocconeis interrupta Grunow, 1863
- Species Cocconeis inusitatus M.H.Hohn, 1961
- Species Cocconeis irregularis (Schulz) A. Witkowski in A. Witkowski, H. Lange-Bertalot & D. Metzeltin, 2000 accepted as Cocconeis scutellum var. irregularis Schulz, 1926
- Species Cocconeis islandica Ehrenberg, 1843
- Species Cocconeis jacksoni Schrader, 1969
- Species Cocconeis janchenii Pantocsek, 1909
- Species Cocconeis janischii Schmidt in Schmidt et al., 1894
- Species Cocconeis japonica A.Schmidt, 1874
- Species Cocconeis japonica (Hustedt) Cleve-Euler, 1953 accepted as Achnanthes pinnata var. japonica Hustedt, 1927
- Species Cocconeis japonica Grunow in Cleve & Möller, 1878
- Species Cocconeis jimboi Pantocsek, 1892 accepted as Surirella jimboi Pantocsek, 1892
- Species Cocconeis jimboites VanLandingham, 1968
- Species Cocconeis jonica Rabenhorst according to Habirshaw
- Species Cocconeis kamchatkiensis Mann, 1925
- Species Cocconeis kerguelenensis Manguin in Bourrelly & Manguin, 1954
- Species Cocconeis kerguelensis Petit, 1888
- Species Cocconeis kinkeri Schmidt in Schmidt et al., 1894
- Species Cocconeis kinkerii Pantocsek, 1892
- Species Cocconeis kirchenpauperiana Janisch & Rabenhorst, 1862
- Species Cocconeis klamathensis H.E.Sovereign, 1958
- Species Cocconeis krammeri Lange-Bertalot & Metzeltin, 1996
- Species Cocconeis kruizingai Reinhold, 1937
- Species Cocconeis kuetzingii Brébisson
- Species Cocconeis kurakakea Riaux-Gobin & Witkowski, 2018
- Species Cocconeis lagerheimii Cleve, 1894
- Species Cocconeis lamprosticta Gregory, 1857
- Species Cocconeis lanceolata Heiden, 1900
- Species Cocconeis lanzii Forti, 1913
- Species Cocconeis lapponica (Hustetd) Cleve-Euler, 1934 accepted as Eucocconeis quadratarea (Østrup) Lange-Bertalot, 1999
- Species Cocconeis latecostata Hustedt, 1955
- Species Cocconeis lauriensis J.Frenguelli & H.A.Orlando, 1958
- Species Cocconeis leonis Carter & Denny, 1987
- Species Cocconeis leptoceros Ehrenberg, 1841 (1843)
- Species Cocconeis leutourneuri Cleve, 1895
- Species Cocconeis levis Østrup, 1918
- Species Cocconeis limbata Ehrenberg, 1840
- Species Cocconeis limbata sensu Neupauer, 1867
- Species Cocconeis linearis (W.Smith) Schonfeldt, 1907 accepted as Achnanthidium lineare W.Smith, 1855
- Species Cocconeis lineata Ehrenberg, 1843
- Species Cocconeis lirata Ehrenberg, 1854
- Species Cocconeis litigiosa van Heurck, 1909
- Species Cocconeis littoralis Subrahmanyan, 1946
- Species Cocconeis longa Ehrenberg, 1841 (1843)
- Species Cocconeis lorenziana (Grunow) H. Peragallo, 1888
- Species Cocconeis lorenziana Grunow in Schmidt et al., 1894
- Species Cocconeis lorenziana Grunow in Schmidt et al., 1894
- Species Cocconeis lunata Leuduger-Fortmorel, 1879
- Species Cocconeis lunyacsekii Pantocsek, 1892
- Species Cocconeis lyra A.Schmidt, 1874
- Species Cocconeis macropunctata Hajós, 1968
- Species Cocconeis magnifica Janisch, 1894
- Species Cocconeis magnoareolata Al-Handal, Riaux-Gob., R.Jahn & A.K.Wulff in Al-Handal et al., 2019
- Species Cocconeis maharashtrensis Sarode & Kamat, 1984
- Species Cocconeis major Gregory, 1857
- Species Cocconeis mammalis (Castracane) F.W. Mills, 1933 accepted as Rhaphoneis mammalis Castracane, 1886
- Species Cocconeis margaritifera Ehrenberg, 1844
- Species Cocconeis marginata Kützing, 1844
- Species Cocconeis marginata Grunow in Cleve & Möller, 1879
- Species Cocconeis marginifera Østrup, 1913
- Species Cocconeis mascarenica Riaux-Gobin & Compère, 2008
- Species Cocconeis materoxanae M. De Stefano, 2005
- Species Cocconeis maxima (Grunow) H.Peragallo & M.Peragallo, 1897
- Species Cocconeis mediterranea Kützing, 1844
- Species Cocconeis meisteri C.Riaux-Gobin, P.Compère, M.Coste, F.Straub & L.Taxböck, 2014
- Species Cocconeis melchiori Frenguelli & Orlando, 1958
- Species Cocconeis melchioroides Al-Handal, Riaux-Gobin, Romero & Wulff, 2008
- Species Cocconeis mexicana Ehrenberg, 1843
- Species Cocconeis microcephala (Kützing) Schonfeldt, 1907 accepted as Achnanthidium microcephalum Kützing, 1844
- Species Cocconeis microscopica Cholnoky, 1959
- Species Cocconeis minor (Kützing) Rabenhorst, 1853 accepted as Cocconeis pediculus var. minor Kützing, 1844
- Species Cocconeis minor Ebert
- Species Cocconeis minumus Loseva, 1982
- Species Cocconeis minuta (Cleve) Cleve, 1895 accepted as Achnanthidium minutum Cleve, 1891
- Species Cocconeis minutissima (Kützing) Schönfeldt, 1907 accepted as Achnanthes minutissima var. minutissima Kützing, 1833
- Species Cocconeis miocenica Hajós, 1959
- Species Cocconeis molesta Kützing
- Species Cocconeis monodii Amossé, 1970
- Species Cocconeis montereyi Grunow in Cleve & Möller, 1878
- Species Cocconeis mormonum Ehrenberg, 1871
- Species Cocconeis moronensis A.W.F.Schmidt, 1894
- Species Cocconeis morrisiana W. Smith in W. Gregory, 1857
- Species Cocconeis morrisii W. Smith, 1857
- Species Cocconeis multiperforata M. De Stefano, D. Marino & L. Mazzella, 2000
- Species Cocconeis nagumoi H.Suzuki, 2006
- Species Cocconeis namaquensis Giffen, 1984
- Species Cocconeis nanaimoensis MacKay in L.W. Bailey & MacKay, 1915
- Species Cocconeis nanoburyatica Kulikovskiy & Lange-Bertalot, 2016
- Species Cocconeis napukensis C.Riaux-Gobin, P.Compère, M.Coste, F.Straub & L.Taxböck, 2014
- Species Cocconeis navicula Ehrenberg, 1840
- Species Cocconeis navicularis Ehrenberg, 1854
- Species Cocconeis naviculoides Greville
- Species Cocconeis neocaledonica Maillard ex Lange-Bertalot & Steidorf in Moser, Steindorf & Lange-Bertalot, 1995
- Species Cocconeis neodiminuta Krammer, 1990
- Species Cocconeis neogradensis Pantocsek, 1886
- Species Cocconeis neogranulata VanLandingham, 1968
- Species Cocconeis neothumensis Krammer, 1991
- Species Cocconeis neuquina Frenguelli, 1942
- Species Cocconeis nidulans Kützing accepted as Frustulia nidulans Brébisson
- Species Cocconeis nidulans Lobarzewsky, 1840
- Species Cocconeis nidulus Edsbagge, 1968
- Species Cocconeis nigricans Kützing
- Species Cocconeis ningpoensis Petit, 1881
- Species Cocconeis nitens Edsbagge, 1968
- Species Cocconeis nitida Gregory, 1857
- Species Cocconeis nitidula Mann, 1937
- Species Cocconeis nitidulans Wolle, 1890
- Species Cocconeis nodulifera Grove & Sturt, 1887
- Species Cocconeis nortina Rivera, 1973
- Species Cocconeis norvegica Grunow, 1878
- Species Cocconeis nosybetiana Riaux-Gobin & Witkowski, 2019
- Species Cocconeis notabilis Schmidt in Schmidt et al., 1894
- Species Cocconeis notabilis Pantocsek, 1892
- Species Cocconeis notata Petit, 1877
- Species Cocconeis nuda Pantocsek, 1912
- Species Cocconeis nugalas Hohn & Hellerman, 1966
- Species Cocconeis nummularia (Greville) H.Peragallo & M.Peragallo, 1897 accepted as Navicula nummularia Greville, 1859
- Species Cocconeis nutans Schmidt in Schmidt et al., 1894
- Species Cocconeis oamaruensis Schrader, 1969
- Species Cocconeis oblonga Kützing, 1844
- Species Cocconeis oblongata Edsbagge, 1968
- Species Cocconeis occulta Meister, 1937
- Species Cocconeis oceanica Ehrenberg, 1840
- Species Cocconeis ocellata Mann, 1925
- Species Cocconeis oculuscatis Brun, 1891
- Species Cocconeis oelandica Cleve-Euler, 1953
- Species Cocconeis oestrupii Cleve-Euler, 1915
- Species Cocconeis oestrupii Héribaud in Héribaud et al., 1920
- Species Cocconeis olivacea Meister, 1937
- Species Cocconeis orbicularis Frenguelli & Orlando, 1958 accepted as Australoneis frenguellii (Riaux-Gobin & J.M.Guerrero) J.M.Guerrero & Riaux-Gobin, 2021
- Species Cocconeis orcii Klyashtorin, 1962
- Species Cocconeis ornata Gregory, 1857
- Species Cocconeis ospristis Mann, 1925
- Species Cocconeis ovalis Bond, 1968
- Species Cocconeis pacifica Grunow, 1867
- Species Cocconeis paniformis Brun in Schmidt et al., 1894
- Species Cocconeis paradoxa Ehrenberg, 1854
- Species Cocconeis parallela Bailey, 1924
- Species Cocconeis parmula Harvey & J.W. Bailey, 1853 (1854)
- Species Cocconeis parthenopoea Pedicino in Rabenhorst, 1870
- Species Cocconeis patavina Meneghini ms. in Kützing, 1849
- Species Cocconeis patrickii Reimer, 1961
- Species Cocconeis pavini E. Manguin, 1954
- Species Cocconeis pediculus Ehrenberg, 1838
- Species Cocconeis pellucida Hantzsch, 1863
- Species Cocconeis pellucida Grunow, 1863
- Species Cocconeis pellucida Truan y Luard & Witt, 1888
- Species Cocconeis pelta A.Schmidt, 1874
- Species Cocconeis peltoides Hustedt, 1939
- Species Cocconeis pensacolae Schmidt in Schmidt et al., 1894
- Species Cocconeis peregrina Schmidt in Schmidt et al., 1895
- Species Cocconeis perpusilla Pantocsek, 1889
- Species Cocconeis persica Rabenhorst, 1853
- Species Cocconeis peruviana Kützing, 1844
- Species Cocconeis pethöi Pantocsek, 1892
- Species Cocconeis pinnata W.Gregory ex Greville, 1859
- Species Cocconeis pinnata (Hustedt) Cleve-Euler, 1934 accepted as Achnanthes pinnata var. pinnata Hustedt, 1922
- Species Cocconeis pinnata A.Y. Al-Handal, C. Riaux-Gobin & A. Wulff, 2010
- Species Cocconeis pinnularia Kützing, 1844
- Species Cocconeis placentra 'Ehrenberg' in Murobuse, 1941
- Species Cocconeis placentula Ehrenberg, 1838
- Species Cocconeis placentula (Skvortzow) Skabichevskii, 1977
- Species Cocconeis placentula (Skvortzow) Skabichevskii, 1977 accepted as Cocconeis placentula var. baicalensis Skvortzov & Meyer, 1928
- Species Cocconeis placentuloides Guslakov, 1992
- Species Cocconeis pliocaenica Krasske, 1933
- Species Cocconeis poretzkyi Skvortzov, 2012
- Species Cocconeis portei E.O'Meara, 1867
- Species Cocconeis portii O'Meara, 1867
- Species Cocconeis pottercovei A.Y.Al-Handal, C.Riaux-Gobin & A.Wulff, 2010
- Species Cocconeis praecellens Pantocsek
- Species Cocconeis praestans Schmidt in Schmidt et al., 1894
- Species Cocconeis praetexta Ehrenberg, 1843
- Species Cocconeis pribilofensis Hanna, 1970
- Species Cocconeis probata Schmidt in Schmidt et al., 1894
- Species Cocconeis problematica Van Landingham, 1967
- Species Cocconeis producta Schmidt in Schmidt et al., 1894
- Species Cocconeis pseudocostata Romero, 1996
- Species Cocconeis pseudodebesii Proschkina-Lavrenko, 1963
- Species Cocconeis pseudodiruptoides Foged, 1975
- Species Cocconeis pseudofluminensis Hajós, 1973
- Species Cocconeis pseudograta Hustedt, 1939
- Species Cocconeis pseudolineata (Geitler) Lange-Bertalot, 2004 accepted as Cocconeis placentula var. pseudolineata Geitler, 1927
- Species Cocconeis pseudomarginata Gregory, 1857
- Species Cocconeis pseudomarginata [sensu] Janisch (in Rabenhorst), 1863
- Species Cocconeis pseudomarginata Schmidt in Schmidt et al., 1894
- Species Cocconeis pseudomarginata Forti, 1908
- Species Cocconeis pseudonotata M.De Stefano & D.Marino, 2001
- Species Cocconeis pseudornata Riaux-Gobin, Igersheim, Ector & Witkowski
- Species Cocconeis pseudothumensis Reichardt, 1982
- Species Cocconeis pulchella Cleve-Euler, 1915
- Species Cocconeis pulcherrima Hustedt, 1952
- Species Cocconeis pumila Kützing, 1844
- Species Cocconeis punctata Ehrenberg, 1841
- Species Cocconeis punctata Lobarzewsky, 1840
- Species Cocconeis punctata Schumann, 1867
- Species Cocconeis punctatissima Greville, 1857
- Species Cocconeis pusilla Frenguelli, 1939
- Species Cocconeis pusilla Archibald, 1966
- Species Cocconeis pygmaea Kützing, 1844
- Species Cocconeis pygmaea Schumann, 1864
- Species Cocconeis quadrata Roper ms in De Toni, 1891
- Species Cocconeis quadratarea Østrup, 1910
- Species Cocconeis quarnerensis (Grunow) A.Schmidt, 1874
- Species Cocconeis radiata Wigand, 1860
- Species Cocconeis radiata Gregory, 1857
- Species Cocconeis raeana Pantocsek, 1889
- Species Cocconeis recurva Schmidt in Schmidt et al., 1894
- Species Cocconeis reedii Desikachary & Sreelatha, 1989
- Species Cocconeis regalis Greville, 1859
- Species Cocconeis regalis [sensu?] H. Peragallo, 1888
- Species Cocconeis regina Johnston, 1860
- Species Cocconeis reicheltii Schmidt in Schmidt et al., 1894
- Species Cocconeis reinholdii Hendey, 1939
- Species Cocconeis reticulata Cleve
- Species Cocconeis rhombea Ehrenberg, 1845
- Species Cocconeis rhombifera Harvey & J.W. Bailey, 1854
- Species Cocconeis rhomboidalis Hyyppa according to Hollerbakh & Krasavina, 1971
- Species Cocconeis rhombus Ehrenberg, 1840
- Species Cocconeis riparia Brun in Schmidt et al., 1894
- Species Cocconeis rivalis Schmidt in Schmidt et al., 1894
- Species Cocconeis robusta Jurilj, 1954
- Species Cocconeis robusta Leuduger-Fortmorel, 1879
- Species Cocconeis roperiana Habirshaw et al., 1877-1894
- Species Cocconeis rouxi
- Species Cocconeis rouxii Héribaud & Brun, 1893 accepted as Cocconeis rouxii (Héribaud & Brun) C.E.Wetzel & Ector, 2019
- Species Cocconeis rouxii (Héribaud & Brun) C.E.Wetzel & Ector, 2019
- Species Cocconeis rudis Frenguelli, 1953 accepted as Planothidium salvadorianum (Hustedt) Lange-Bertalot, 1999
- Species Cocconeis rugosa Sovereign, 1958
- Species Cocconeis sabangii Meister, 1932
- Species Cocconeis salina (Kützing) Rabenhorst, 1853 accepted as Cocconeis pediculus var. salina Kützing, 1844
- Species Cocconeis sancti-pauli Heiden in Heiden & Kolbe, 1928
- Species Cocconeis sarmatica Pantocsek, 1902
- Species Cocconeis sarmatica Hajós, 1973
- Species Cocconeis sawensis A.Y.Al-Handal & C.Riaux-Gobin, 2014
- Species Cocconeis scaettae V.Zanon, 1938
- Species Cocconeis schippi Meister, 1934 (1935)
- Species Cocconeis schleinitzii Janisch in Schmidt et al., 1894
- Species Cocconeis schmidtii Heiden in Heiden & Kolbe, 1928
- Species Cocconeis schmidtii Cleve-Euler, 1953
- Species Cocconeis schmidtii (Kisselev) Scheschukova (?) in Sabelina, 1961
- Species Cocconeis schroederi Foged, 1966
- Species Cocconeis schuetii
- Species Cocconeis schuettii van Heurck, 1909 accepted as Cocconeis antiqua J.A.Tempère & J.-J.Brun, 1889 †
- Species Cocconeis schulzii (Cleve-Euler) Cleve-Euler, 1953 accepted as Achnanthes Schulzii Cleve-Euler, 1932
- Species Cocconeis scutata Pogrebnyak, 1953
- Species Cocconeis scutelliformis Grunow in Van Heurck, 1880
- Species Cocconeis scutellum Ehrenberg, 1838
- Species Cocconeis scutellum Meunier, 1910
- Species Cocconeis scutum Ehrenberg, 1854
- Species Cocconeis sedimentaria Romero, 1996
- Species Cocconeis semiaperta Hustedt, 1945
- Species Cocconeis semipolita Schmidt in Schmidt et al., 1894
- Species Cocconeis senegalensis Brébisson in H.L. Smith, 1874-1879
- Species Cocconeis septentrionalis Grunow, 1884
- Species Cocconeis serians Grunow in Cleve & Möller, 1879
- Species Cocconeis shikinensis Suzuki, Nagumo & J.Tanaka, 2001
- Species Cocconeis sigma Pantocsek
- Species Cocconeis sigmacrux Mereschkowsky, 1902
- Species Cocconeis sigmoidea Schumann, 1867
- Species Cocconeis sigmoides R.Subrahmanyan, 1946
- Species Cocconeis sigmoradians Tempère & Brun in Brun & Tempère, 1889
- Species Cocconeis signata Peragallo & Peragallo, 1897
- Species Cocconeis sijunghoensis R. Jahn & B. M. Suh in Jahn et al., 2020
- Species Cocconeis similis Karsten, 1905
- Species Cocconeis singularis Hagelstein, 1939
- Species Cocconeis skvortzowii (Skvortzow) Scheschukova in Zabelina et al., 1951 accepted as Cocconeis placentula var. baikalensis Skvortzow, 1937
- Species Cocconeis sol Ehrenberg, 1854
- Species Cocconeis soukupi Frenguelli, 1939
- Species Cocconeis sovereigni Hustedt, 1955
- Species Cocconeis sparsipunctata Brun, 1891
- Species Cocconeis spathulatum Shadbolt, 1854
- Species Cocconeis speciosa Gregory, 1855
- Species Cocconeis speciosa Ehrenberg
- Species Cocconeis speciosa Héribaud, 1893
- Species Cocconeis spina-christi C.Riaux-Gobin, O.E. Romero, M.Coste & R.Galzin, 2013
- Species Cocconeis splendida Gregory, 1857 accepted as Mastogloia splendida (Gregory) H.Pergallo, 1888
- Species Cocconeis stauroneiformis (W.Smith) H.Okuno, 1957 accepted as Cocconeis scutellum f. stauroneiformis Rabenhorst, 1864
- Species Cocconeis stella Ehrenberg, 1854
- Species Cocconeis stellata Ehrenberg, 1854
- Species Cocconeis stompsii Cholnoky, 1963
- Species Cocconeis striata Ehrenberg, 1843
- Species Cocconeis stricta Ehrenberg, 1856
- Species Cocconeis striolata Rabenhorst, 1853
- Species Cocconeis subacuta Ehrenberg, 1858
- Species Cocconeis subantarctica Riaux-Gobin & Witkowski, 2017
- Species Cocconeis subdirupta Cholnoky, 1959
- Species Cocconeis sublittoralis Hendey, 1951
- Species Cocconeis subtilis Schmidt in Schmidt et al., 1894
- Species Cocconeis subtilissima Meister, 1934 (1935)
- Species Cocconeis subzanskiensis Riaux-Gobin, Witkowski, Ector & Igersheim, 2018
- Species Cocconeis suecica Lak, 1954
- Species Cocconeis sulcata Harvey & J.W. Bailey, 1854
- Species Cocconeis superba C.Janisch, 1861
- Species Cocconeis surirelloides Grunow, 1868
- Species Cocconeis suzukii C.Riaux-Gobin, P.Compère, M.Coste, F.Straub & L.Taxböck, 2014
- Species Cocconeis taeniata Ehrenberg, 1854
- Species Cocconeis tenella Schmidt in Schmidt et al., 1894
- Species Cocconeis tenera Schumann, 1867
- Species Cocconeis tenuis Hustedt, 1939
- Species Cocconeis tenuis (Dujardin) Örsted, 1844 accepted as Surirella tenuis Dujardin, 1842
- Species Cocconeis tenuissima Naegeli ex Kützing, 1849
- Species Cocconeis tenuistriata Lin & Chin, 1980
- Species Cocconeis testudo Giffen, 1963
- Species Cocconeis thalassiana O.E.Romero & F.O.López-Fuerte, 2013
- Species Cocconeis theinemannii Hustedt, 1954
- Species Cocconeis therezieni LeCohu & Maillard, 1983
- Species Cocconeis thienemanni Hustedt, 1954
- Species Cocconeis thomasiana Brun, 1895 accepted as Cocconeis disculus (Schumann) Cleve, 1882
- Species Cocconeis thumensis A.Mayer, 1919
- Species Cocconeis thwaitesii W.Smith, 1853
- Species Cocconeis titicacaensis Frenguelli, 1939
- Species Cocconeis toniana Pantocsek according to Mills
- Species Cocconeis tortilis H.Suzuki, 2014
- Species Cocconeis totarae Brun, 1894
- Species Cocconeis toxa Carter & Denny, 1987
- Species Cocconeis trachyderma Meister, 1934 (1935) accepted as Achnanthes trachyderma (F.Meister, 1934)
- Species Cocconeis trachytica Pantocsek
- Species Cocconeis transversa Schmidt in Schmidt et al., 1894
- Species Cocconeis transversalis Gregory, 1855
- Species Cocconeis trilineatus M. Peragallo & Héribaud in Héribaud, 1893
- Species Cocconeis trinodis (Arnott ex Ralfs in Pritchard) Schonfeldt, 1907
- Species Cocconeis trinotata Schmidt in Schmidt et al., 1895
- Species Cocconeis triumphis Hanna & Grant, 1926
- Species Cocconeis tuamotuana Riaux-Gobin et al., 2015
- Species Cocconeis tumida Ehrenberg, 1854
- Species Cocconeis turgida Ehrenberg in Ralfs in Pritchard, 1854
- Species Cocconeis undata Ehrenberg, 1854
- Species Cocconeis undulata Ehrenberg, 1838
- Species Cocconeis utermöhli Hustedt, 1954
- Species Cocconeis utermohlii Hustedt, 1954
- Species Cocconeis vairaensis Ricard, 1975
- Species Cocconeis vanheurckii Cleve, 1895
- Species Cocconeis verrucosa Brun, 1891
- Species Cocconeis versicolor Brun, 1891
- Species Cocconeis vetusta Schmidt in Schmidt et al., 1894
- Species Cocconeis vexans Schmidt, 1874
- Species Cocconeis villosa H.Peragallo, 1888
- Species Cocconeis vitellina Schoeman in Schoeman & Meaton, 1982
- Species Cocconeis vitrea J.-J.Brun
- Species Cocconeis voigtii Meister, 1937
- Species Cocconeis voluta J.-J.Brun
- Species Cocconeis vrangoensis Al-Handal & Riaux-Gob. in Al-Handal et al., 2019
- Species Cocconeis wheeleri Hart, 1935
- Species Cocconeis wienckensis Petit, 1908
- Species Cocconeis wigandii Rabenhorst, 1864
- Species Cocconeis woodii Reyes-Vasquez, 1970
- Species Cocconeis wrightii O'Meara, 1867
- Genus Epipellis R.W. Holmes, 1985
- Genus Psammococconeis M. Garcia, 2001
- Genus Xenococconeis C.Riaux-Gobin, 2014 (1)
- Order Bacillariales (357)
- Order Cymbellales (792)
- Order Dictyoneidales
- Order Lyrellales (15)
- Order Mastogloiales (88)
- Order Naviculales (2 077)
- Order Rhopalodiales (37)
- Order Surirellales (174)
- Order Thalassiophysales (105)
- Superorder Bacillariophycidae incertae sedis (32)
- Superorder Eunotiophycanae (293)
- Subclass Coscinodiscophycidae (877)
- Subclass Fragilariophycidae (483)
- Order Centrales
