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)
- Subclass Coscinodiscophycidae (878)
- Superorder Biddulphianae (230)
- Superorder Chaetocerotanae (95)
- Order Chaetocerales (1)
- Order Chaetocerotanae incertae sedis (92)
- Family Acanthocerataceae Round, Crawford & Mann, 1990
- Family Attheyaceae Round & R. M. Crawford (1)
- Family Chaetocerotaceae Ralfs, 1861 (91)
- Genus Acanthoceras Honigm., 1910 (1)
- Genus Bacteriastrum G. Shadbolt, 1854 (7)
- Genus Chaetoceros C.G. Ehrenberg, 1844 (83)
- Subgenus Chaetoceros (Hyalochaete)
- Subgenus Chaetoceros (Phaeoceros) Gran
- Species Chaetoceros abnormis Proschkina-Lavrenko, 1953
- Species Chaetoceros acadianus Samanta & Porcher in Kaczmarska et al., 2019
- Species Chaetoceros aculeatus Makarova, 1962
- Species Chaetoceros adelianium E. Manguin, 1960
- Species Chaetoceros adelianum E. Manguin, 1957
- Species Chaetoceros adhaerens Mangin, 1913 accepted as Chaetoceros costatus Pavillard, 1911
- Species Chaetoceros adhaereus L. Mangin, 1913
- Species Chaetoceros adriaticus B.Schussnig, 1915
- Species Chaetoceros aduncus Suchanova, 1971
- Species Chaetoceros aequatorialis Cleve, 1873
- Species Chaetoceros aequatorialis Yendo, 1905
- Species Chaetoceros affine Lauder, 1864 accepted as Chaetoceros affinis Lauder, 1864
- Species Chaetoceros affinis Lauder, 1864
- Species Chaetoceros amanita Cleve-Euler, 1915
- Species Chaetoceros ambiguus A.P. Jousé, 1978
- Species Chaetoceros anastomosans Grunow, 1882
- Species Chaetoceros anastomosans Gran, 1905
- Species Chaetoceros anglicum (Grunow in Van Heurck) Ostenfeld, 1902 accepted as Chaetoceros anglicus Grunow in Van Heurck, 1882
- Species Chaetoceros anglicus Grunow in Van Heurck, 1882
- Species Chaetoceros angularis Schütt, 1895
- Species Chaetoceros angulatum Schütt, 1895
- Species Chaetoceros anostomosans
- Species Chaetoceros antarcticum
- Species Chaetoceros apendiculatus Müller-Melchers, 1953
- Species Chaetoceros approximatus Gran & Angst, 1931
- Species Chaetoceros armatus T.West, 1860
- Species Chaetoceros astrabadicus Henckel, 1909
- Species Chaetoceros asymmetricus J. Fenner in Fenner & Mikkelsen, 1990
- Species Chaetoceros atlanticum
- Species Chaetoceros atlanticus Cleve, 1873
- Species Chaetoceros atlanticus Okamura, 1907
- Species Chaetoceros atlantidae Müller-Melchers, 1953
- Species Chaetoceros audax F.Schütt, 1895
- Species Chaetoceros aurivillii Cleve, 1901
- Species Chaetoceros bacillaria Ehrenberg, 1844
- Species Chaetoceros bacteriastroides G.H.H.Karsten, 1907
- Species Chaetoceros bacteriastrum
- Species Chaetoceros baculites Meunier, 1910
- Species Chaetoceros balticum P.T. Cleve, 1896 accepted as
- Species Chaetoceros balticus Cleve, 1896
- Species Chaetoceros barbatum (Ehrenberg) Brightwell, 1856 accepted as Goniothecium barbatum (Ehrenberg) Ehrenberg, 1854
- Species Chaetoceros bermejensis Hernandez-Becerril, 1991
- Species Chaetoceros biconcavus Gran, 1897
- Species Chaetoceros bicoronata Mereschkowsky, 1899
- Species Chaetoceros bifurcatus X.J. Xu, Yang Li & Lundholm in Xu et al., 2019
- Species Chaetoceros biharensis Pantocsek, 1892
- Species Chaetoceros bisetaceum Schumann, 1867
- Species Chaetoceros boreale
- Species Chaetoceros boreali Lauder, 1864
- Species Chaetoceros borealis Bailey, 1854
- Species Chaetoceros borealis Schutt, 1893
- Species Chaetoceros borealoides Honigmann, 1909
- Species Chaetoceros borgei Lemmermann, 1904
- Species Chaetoceros borskowii Pantocsek, 1909
- Species Chaetoceros bottnicus Cleve, 1896 accepted as Chaetoceros wighamii Brightwell, 1856
- Species Chaetoceros breve Schütt, 1895
- Species Chaetoceros brevis F.Schütt, 1895
- Species Chaetoceros brevisetum Aksentjev (Axentjev), 1930
- Species Chaetoceros brevispinosus X.J.Xu, Yang Li & Lundholm
- Species Chaetoceros brevispinus (Castracane) De Toni, 1894 accepted as Bacteriastrum brevispinum Castracane, 1886
- Species Chaetoceros brightwellii (Cleve) Cleve, 1901 accepted as Chaetoceros borealis var. brightwellii (Cleve) Cleve
- Species Chaetoceros brussilowi Henckel, 1925
- Species Chaetoceros buceros Karsten, 1907
- Species Chaetoceros bulbosum
- Species Chaetoceros bulbosus (Ehrenberg) Heiden, 1928
- Species Chaetoceros bungei Honigmann, 1909
- Species Chaetoceros calcitrans (Paulsen) Takano, 1968 accepted as Chaetoceros simplex var. calcitrans Paulsen, 1905
- Species Chaetoceros californicum Grunow in Van Heurck, 1883
- Species Chaetoceros calvus Cleve, 1901
- Species Chaetoceros capense Karsten, 1905
- Species Chaetoceros capreolus (Ehrenberg) L.W. Bailey, 1910 accepted as Dicladia capreolus Ehrenberg, 1845 †
- Species Chaetoceros capricornianus Taylor, 1967
- Species Chaetoceros caspicum
- Species Chaetoceros caspicus Ostenfeld, 1920
- Species Chaetoceros caspius Cleve in Lonnberg, 1900
- Species Chaetoceros castracanei Karsten, 1905
- Species Chaetoceros cellulosum Lauder, 1864
- Species Chaetoceros ceratospermum
- Species Chaetoceros ceratosporum
- Species Chaetoceros ceratosporus Ostenfeld, 1910
- Species Chaetoceros chilensis Krasske, 1941
- Species Chaetoceros chinchae Mereschkowsky, 1899
- Species Chaetoceros chunii Karsten, 1905
- Species Chaetoceros ciliata Lauder, 1864
- Species Chaetoceros cinctus Gran, 1897
- Species Chaetoceros circinalis (Meunier) K.G. Jensen & Moestrup, 1998
- Species Chaetoceros clavigera Ostenfeld, 1902
- Species Chaetoceros clavigerum Grunow, 1884
- Species Chaetoceros clevei Schütt, 1895
- Species Chaetoceros clevei Peragallo & Peragallo, 1904
- Species Chaetoceros coarctatus Lauder, 1864
- Species Chaetoceros coarctus
- Species Chaetoceros cochlea Schütt, 1895
- Species Chaetoceros cochleus F.Schütt
- Species Chaetoceros coloradensis Li & Kociolek, 2016
- Species Chaetoceros commutatus Cleve, 1896
- Species Chaetoceros compacta Cleve, 1897
- Species Chaetoceros compactum Ikari, 1928
- Species Chaetoceros compactus Schütt, 1895
- Species Chaetoceros compressus Lauder, 1864
- Species Chaetoceros compressus Cleve, 1894
- Species Chaetoceros concavicornis Mangin, 1917
- Species Chaetoceros concretum (Cleve & Grunow) Engler, 1883 accepted as Chaetoceros decipiens var. concreta Grunow
- Species Chaetoceros confertus Müller-Melchers, 1953
- Species Chaetoceros confervoides Ralfs in Pritchard, 1861
- Species Chaetoceros confusum VanLandingham, 1968
- Species Chaetoceros connivens Grunow in Cleve & Möller, 1878
- Species Chaetoceros constrictus Gran, 1897
- Species Chaetoceros contortus Schütt, 1895
- Species Chaetoceros convexicornis Mangin, 1919
- Species Chaetoceros convolutum
- Species Chaetoceros convolutus Castracane, 1886
- Species Chaetoceros cornigerum Jousé, 1959
- Species Chaetoceros cornutus Leuduger-Fortmorel, 1898
- Species Chaetoceros coronatus Gran, 1897
- Species Chaetoceros costatus Pavillard, 1911
- Species Chaetoceros crenatum (Ehrenberg) Brightwell accepted as Goniothecium crenatum Ehrenberg, 1854
- Species Chaetoceros crinitum Schütt, 1895
- Species Chaetoceros crinitus F.Schütt, 1895
- Species Chaetoceros crinitus Gran, 1897
- Species Chaetoceros criophilum
- Species Chaetoceros criophilus sensu Hust. In A. Schmidt, 1921, non Castr., 1886
- Species Chaetoceros criophilus Gran, 1904
- Species Chaetoceros criophilus Castracane, 1886
- Species Chaetoceros criophilus auct. nonnull. (non Castracane)
- Species Chaetoceros criophilus E. Jorgensen, 1900
- Species Chaetoceros criophilus Cleve, 1897
- Species Chaetoceros cruciatum Karsten, 1905
- Species Chaetoceros crucifer Gran in Gran & Angst, 1931
- Species Chaetoceros curiosus Makarova, 1962
- Species Chaetoceros currens Cleve, 1897
- Species Chaetoceros curvatum Castracane, 1886
- Species Chaetoceros curvatus Castracane, 1886
- Species Chaetoceros curvisetum Cleve, 1889
- Species Chaetoceros curvisetum Cleve, 1889
- Species Chaetoceros curvisetus Cleve, 1889
- Species Chaetoceros curvisetus Hustedt in Schmidt, 1920
- Species Chaetoceros cylindrosporus Makarova, 1962
- Species Chaetoceros dadayi Pavillard, 1913
- Species Chaetoceros danicus Cleve, 1889
- Species Chaetoceros dayaensis Li & Zhu, 2015
- Species Chaetoceros debile Cleve, 1894 accepted as Chaetoceros debilis Cleve, 1894 emend Xu, Y.Li & Lundholm in Xu et al., 2020
- Species Chaetoceros debilis Cleve, 1894 emend Xu, Y.Li & Lundholm in Xu et al., 2020
- Species Chaetoceros debilis Leegaard, 1920
- Species Chaetoceros decipiens Cleve, 1873
- Species Chaetoceros deflandrei E. Manguin, 1960
- Species Chaetoceros delicatula Cleve, 1898 (1900)
- Species Chaetoceros delicatulum C.E.H.Ostenfeld, 1901 accepted as Chaetoceros delicatulus Ostenfeld, 1902
- Species Chaetoceros delicatulus Ostenfeld, 1902
- Species Chaetoceros densum (Cleve) Cleve, 1899 accepted as Chaetoceros densus (Cleve) Cleve, 1899
- Species Chaetoceros densus (Cleve) Cleve, 1899
- Species Chaetoceros dentatus Korotkevicz, 1964
- Species Chaetoceros denticulata H.S.Lauder
- Species Chaetoceros denticulatus
- Species Chaetoceros diadema (Ehrenberg) Gran, 1897 accepted as Syndendrium diadema Ehrenberg, 1854 †
- Species Chaetoceros dichaeta Ehrenberg, 1844
- Species Chaetoceros dichaetus Ehrenberg, 1844 accepted as Chaetoceros dichaeta Ehrenberg, 1844
- Species Chaetoceros dicladia Castracane, 1886
- Species Chaetoceros didymum Ehrenb., 1845 accepted as Chaetoceros didymus Ehrenberg, 1845
- Species Chaetoceros didymus Ehrenberg, 1845
- Species Chaetoceros didymus Okamura, 1907
- Species Chaetoceros difficilis Cleve, 1900
- Species Chaetoceros difficilis Karsten, 1905
- Species Chaetoceros diploneis Ehrenberg, 1844 (1845)
- Species Chaetoceros dipyrenops A.F.Meunier, 1913
- Species Chaetoceros dispar Castracane, 1886
- Species Chaetoceros distans Cleve, 1873
- Species Chaetoceros distichum Schütt, 1895
- Species Chaetoceros distinguendus Lemmermann, 1904
- Species Chaetoceros diversicurvatus Van Goor, 1924
- Species Chaetoceros diversus Cleve, 1873
- Species Chaetoceros dubius Proschkina-Lavrenko, 1955
- Species Chaetoceros eibenii Grunow, 1882
- Species Chaetoceros elegans Gutwinski, 1895
- Species Chaetoceros elmorei Boyer, 1914
- Species Chaetoceros elongatum Honigmann, 1910
- Species Chaetoceros elongatus Honigmann, 1909
- Species Chaetoceros equatorialis
- Variety Chaetoceros equatorialis var. equatorialis Cleve, 1873
- Species Chaetoceros exiguus Cleve, 1897
- Species Chaetoceros exospermum Meunier, 1913
- Species Chaetoceros externus Gran, 1897
- Species Chaetoceros fallax Prosckina-Lavrenko, 1955
- Species Chaetoceros femur Schütt, 1895
- Species Chaetoceros filiferum Karsten, 1907
- Species Chaetoceros filiforme Meunier, 1910
- Species Chaetoceros filiformis Meunier, 1910
- Species Chaetoceros flexuosus Mangin, 1915
- Species Chaetoceros forcipatus L. Mangin, 1915
- Species Chaetoceros fragilis Meunier, 1910
- Species Chaetoceros frickei Hustedt in Schmidt, 1921
- Species Chaetoceros furca Cleve, 1897 accepted as Chaetoceros messanense Castracane, 1875
- Species Chaetoceros furcatus (Shadbolt) Mann, 1907 accepted as Bacteriastrum furcatum Shadbolt, 1854
- Species Chaetoceros furcatus Ehrenberg, 1872
- Species Chaetoceros furcellatus Yendo, 1911
- Species Chaetoceros furcillatus Bailey, 1856
- Species Chaetoceros fusus Schütt, 1895
- Species Chaetoceros galeatus X.J. Xu & Yang Li in Xu et al., 2020
- Species Chaetoceros galvestonensis Collier & Murphy, 1962
- Species Chaetoceros gaponovii Jousé, 1959
- Species Chaetoceros gastridium (Ehrenberg) Brightwell, 1856 accepted as Goniothecium gastridium Ehrenberg, 1844 †
- Species Chaetoceros gastridium (Ehrenberg) Ehrenberg, 1845 accepted as Goniothecium gastridium Ehrenberg, 1844 †
- Species Chaetoceros gaussii Heiden, 1928
- Species Chaetoceros gelidus Chamnansinp, Li, Lundholm & Moestrup, 2013
- Species Chaetoceros glaciale A.F.Meunier
- Species Chaetoceros glacialis Henckel, 1925
- Species Chaetoceros glacialis Meunier, 1910
- Species Chaetoceros glandazi Mangin, 1910
- Species Chaetoceros glandazii Mangin, 1910
- Species Chaetoceros gobii Henckel, 1909
- Species Chaetoceros gracile Apstein, 1909 accepted as Chaetoceros ceratosporus Ostenfeld, 1910
- Species Chaetoceros gracilis Schütt, 1895 accepted as Chaetoceros neogracile S.L.VanLandingham, 1968
- Species Chaetoceros gracilis Pantocsek, 1892 †
- Species Chaetoceros gracilis Paulsen, 1905
- Species Chaetoceros gracilis Apstein, 1909
- Species Chaetoceros granii Cleve, 1900
- Species Chaetoceros groenlandicus Cleve, 1896 accepted as Chaetoceros diadema (Ehrenberg) Gran, 1897
- Species Chaetoceros grunowii F.Schütt, 1895
- Species Chaetoceros grunowii Engler, 1883
- Species Chaetoceros halo (Brun in Brun & Tempère) De Toni, 1894 accepted as Bacteriastrum halo Brun in Brun & Tempère, 1889
- Species Chaetoceros hamatus Hustedt ex Simonsen, 1987
- Species Chaetoceros hamatus A. P. Jousé
- Species Chaetoceros hebes Mann, 1925
- Species Chaetoceros heimii E. Manguin, 1961
- Species Chaetoceros hendeyi Manguin, 1960
- Species Chaetoceros heterovalvatus Proschkina-Lavrenko, 1953
- Species Chaetoceros hiemale Cleve, 1900 accepted as Chaetoceros brevis F.Schütt, 1895
- Species Chaetoceros hiemalis (Cleve) Cleve, 1900 accepted as Chaetoceros didymus var. hiemalis Cleve, 1897
- Species Chaetoceros hirundinellus Qian, 1979
- Species Chaetoceros hispidum
- Species Chaetoceros hispidus (Ehrenberg) T.Brightwell
- Species Chaetoceros hohnii Graebner & Wujek in Wujek & Graebner, 1980
- Species Chaetoceros holsaticum Schütt, 1895
- Species Chaetoceros holsaticus F.Schütt, 1895
- Species Chaetoceros horridus Krasske, 1941
- Species Chaetoceros hungaricus Pantocsek, 1892
- Species Chaetoceros ikari Skvortzow, 1931
- Species Chaetoceros imbricatus Mangin, 1912
- Species Chaetoceros imbricatus L. Mangin, 1913
- Species Chaetoceros implicans Ehrenberg, 1872
- Species Chaetoceros impressus K.G.Jensen & Moestrup, 1998 accepted as Chaetoceros castracanei Karsten, 1905
- Species Chaetoceros incertus Makarova, 1962
- Species Chaetoceros incisor Ralfs in Lauder, 1864
- Species Chaetoceros incurvum
- Species Chaetoceros incurvus Bailey
- Species Chaetoceros incurvus Brightwell, 1856
- Species Chaetoceros indeterminabilis Jurilj, 1957
- Species Chaetoceros indicus Karsten, 1907
- Species Chaetoceros indicus Subrahmanyan, 1946
- Species Chaetoceros ingolfianus Ostenfeld, 1902
- Species Chaetoceros insignis Proschkina-Lavrenko, 1955
- Species Chaetoceros insignis Müller-Melchers, 1953
- Species Chaetoceros intermedius Henckel, 1909
- Species Chaetoceros invisibilis R.M. Gogorev & I.V. Makarova in Gogorev, 2003
- Species Chaetoceros janischianum Castracane, 1886
- Species Chaetoceros janischianus Castracane, 1886 accepted as Chaetoceros dichaetus Ehrenberg, 1844
- Species Chaetoceros japonicus Ehrenberg, 1872
- Species Chaetoceros javanicus Cleve, 1873
- Species Chaetoceros jouseana R.M. Gogorev, 2006
- Species Chaetoceros jouseanus R. M. Gogorev, 2006
- Species Chaetoceros juetlandicus Fenner, 1994
- Species Chaetoceros karianus Grunow, 1880
- Species Chaetoceros karyanum Henckel, 1926
- Species Chaetoceros kelleri Brun, 1895
- Species Chaetoceros knipowitschi Henckel, 1909
- Species Chaetoceros komarovii Woronichin, 1953
- Species Chaetoceros laciniosum Schütt, 1895
- Species Chaetoceros laciniosum Ostenfeld, 1898
- Species Chaetoceros laciniosus F.Schütt, 1895
- Species Chaetoceros laeve G.Leuduger-Fortmorel, 1892
- Species Chaetoceros lauderi Ralfs, 1864
- Species Chaetoceros lawii E. Manguin, 1954
- Species Chaetoceros leudugeri Brun, 1894
- Species Chaetoceros leve F.Schütt
- Species Chaetoceros levis Schutt, 1896
- Species Chaetoceros limaniensis Ehrlich, 1969
- Species Chaetoceros litoralis Lemmermann, 1909
- Species Chaetoceros longicornis Makarova, 1962
- Species Chaetoceros longicrure (Cleve) Ostenfeld, 1901 accepted as Chaetoceros didymus var. longicruris Cleve, 1897
- Species Chaetoceros longiruris Ostenfeld
- Species Chaetoceros longisetus Cleve, 1900
- Species Chaetoceros longissimum Cleve in Meunier, 1910
- Species Chaetoceros lorenzianum
- Species Chaetoceros lorenzianus Grunow, 1863
- Species Chaetoceros lorenzianus Van Breemen, 1905
- Species Chaetoceros lorenzii Grunow in Van Heurck, 1883
- Species Chaetoceros lyra Mereschkowsky, 1900-1902
- Species Chaetoceros makarovae R.M. Gogorev, 2006
- Species Chaetoceros malayensis Nielsen, 1931
- Species Chaetoceros malygini Henckel, 1926
- Species Chaetoceros mamillana (L.W. Bailey) Mann, 1907 accepted as Chaetoceros mamillanus Cleve, 1889
- Species Chaetoceros mamillanus Cleve, 1889
- Species Chaetoceros mamillosa (Grunow in Cleve & Grunow) F.W. Mills, 1933 accepted as Chaetoceros furcillatus var. mamillosa Grunow in Cleve & Grunow, 1880
- Species Chaetoceros manguinii Reyssac, 1968
- Species Chaetoceros manguinii Gayral, 1954
- Species Chaetoceros marylandicus Grunow in Cleve & Möller, 1879
- Species Chaetoceros medium Schutt, 1895
- Species Chaetoceros medusa Mann, 1925
- Species Chaetoceros meridiana (Schütt) Karsten, 1928 accepted as Peragallia meridiana Schütt, 1895
- Species Chaetoceros mertensi Honigmann, 1910
- Species Chaetoceros mertensii Honigmann, 1909
- Species Chaetoceros messanense Castracane, 1875
- Species Chaetoceros messanensis Castracane, 1875 accepted as Chaetoceros messanense Castracane, 1875
- Species Chaetoceros millipedarius X.J. Xu, Yang Li & Lundholm in Xu et al., 2019
- Species Chaetoceros minimus (Levander) D.Marino, G.Giuffre, M.Montresor & A.Zingone, 1991 accepted as Rhizosolenia minima Levander, 1904
- Species Chaetoceros minutissimus Makarova & Proschkina-Lavrenko, 1964
- Species Chaetoceros miocenicus Jousé, 1959
- Species Chaetoceros mirabile (Grunow in Van Heurck) Mann, 1907
- Species Chaetoceros mirabilis Makarova, 1959
- Species Chaetoceros misumense Gran & Yendo, 1914
- Species Chaetoceros mitra (Bailey) Cleve, 1896 accepted as Dicladia mitra J.W.Bailey, 1856 †
- Species Chaetoceros monicae Grunow in Van Heruck, 1883
- Species Chaetoceros muelleri Lemmermann, 1898
- Species Chaetoceros myriapodus L. Mangin, 1913
- Species Chaetoceros najadianus B.Schussnig, 1915
- Species Chaetoceros nanodenticulatus Okamura, 1907
- Species Chaetoceros nanseni Henckel, 1925
- Species Chaetoceros natatum E. Manguin, 1957
- Species Chaetoceros natatum E. Manguin, 1960
- Species Chaetoceros navicula (Ehrenberg) Brightwell, 1856 accepted as Goniothecium navicula Ehrenberg, 1844
- Species Chaetoceros neapolitanus Schröder, 1900
- Species Chaetoceros neapolitanus Schroeder, 1900 accepted as Chaetoceros atlanticus var. neapolitanus (Schroeder) Hustedt, 1930
- Species Chaetoceros neglectus Karsten, 1905
- Species Chaetoceros neobulbosum Desikachary, Gowthaman & Latha, 1987
- Species Chaetoceros neocompactum VanLandingham, 1968
- Species Chaetoceros neogracile S.L.VanLandingham, 1968 accepted as Chaetoceros neogracilis VanLand., 1968
- Species Chaetoceros neogracilis VanLand., 1968
- Species Chaetoceros neupokojewi Henckel, 1925
- Species Chaetoceros nipponica Ikari, 1928
- Species Chaetoceros nipponicus J.Ikari
- Species Chaetoceros nodulosus (Shadbolt) De Toni, 1894 accepted as Bacteriastrum nodulosa Shadbolt, 1854
- Species Chaetoceros notabile Lohmann, 1919
- Species Chaetoceros octagonus Hernandez-Becerril, 1992
- Species Chaetoceros odessanus Aksentjev, 1930
- Species Chaetoceros odontella (Ehrenberg) G.L.Rabenhorst accepted as Goniothecium odontella f. odontella Ehrenberg, 1844
- Species Chaetoceros okamurai
- Species Chaetoceros oppositisetaceus Proschkina-Lavrenko, 1961
- Species Chaetoceros orientalis Schiller in Hustedt, 1930
- Species Chaetoceros ornatus (Chamnansinp, Moestrup & Lundholm) X.J.Xu, Yang Li & Lundholm
- Species Chaetoceros ostenfeldii Cleve, 1900
- Species Chaetoceros pachtussowi Henckel, 1925
- Species Chaetoceros pachyceros R.Margalef
- Species Chaetoceros pacificum Ikari, 1928
- Species Chaetoceros pacificus J.Ikari
- Species Chaetoceros pacificus Semina, 1961
- Species Chaetoceros panduriformis Bailey
- Species Chaetoceros pantocseki Hajós, 1977
- Species Chaetoceros paradoxum Peragallo & Peragallo, 1897-1908
- Species Chaetoceros paradoxus Peragallo, 1897 accepted as Chaetoceros diadema (Ehrenberg) Gran, 1897
- Species Chaetoceros paradoxus Cleve, 1873
- Species Chaetoceros paradoxus Schutt, 1895
- Species Chaetoceros parallelis Boden, 1950
- Species Chaetoceros parvus Schutt, 1895
- Species Chaetoceros pauciramosus Z. Y. Chen, N. Lund- holm, Ø. Moestrup, J. Kownacka & Y. Li, 2018
- Species Chaetoceros paulsenii Ostenfeld, 1902
- Species Chaetoceros pavillardii Ikari, 1928
- Species Chaetoceros pelagicum Cleve, 1873
- Species Chaetoceros pelagicus Cleve
- Species Chaetoceros pendulum Karsten, 1905
- Species Chaetoceros pendulus Karsten, 1905
- Species Chaetoceros pennatus (Grunow in Van Heurck) De Toni, 1894
- Species Chaetoceros perpusillus Cleve, 1897
- Species Chaetoceros peruvianum Brightwell, 1856
- Species Chaetoceros peruvianum Brightw., 1856 accepted as Chaetoceros peruvianum Brightwell, 1856
- Species Chaetoceros peruvianus Gran, 1908
- Species Chaetoceros peruvianus Vanhoffen, 1897
- Species Chaetoceros peruvio-atlanticus Karsten, 1907
- Species Chaetoceros pethoei Pantocsek, 1892
- Species Chaetoceros phuketensis J.E.B.Rines, P.Boonruang & E.C.Theriot, 2000
- Species Chaetoceros pinguichaete A. & P. Henckel, 1925
- Species Chaetoceros pinguis Henckel, 1909
- Species Chaetoceros plicatorugosum Brun, 1894
- Species Chaetoceros pliocenum Brun, 1891
- Species Chaetoceros polyamobicum Henckel, 1926
- Species Chaetoceros polygonus Schütt, 1895 accepted as Chaetoceros atlanticus Cleve, 1873
- Species Chaetoceros ponticus Mereschkowsky, 1902
- Species Chaetoceros primordialis
- Species Chaetoceros princeps (Castracane) Mann, 1926 accepted as Bacteriastrum varians var. princeps Castracane, 1886
- Species Chaetoceros procerum Schütt, 1895
- Species Chaetoceros processus Makarova, 1962
- Species Chaetoceros productus (H.L. Smith) De Toni, 1894 accepted as Bacteriastrum productum H.L. Smith, 1874
- Species Chaetoceros proschkinae Gogorev, 2006
- Species Chaetoceros protuberans Lauder, 1864
- Species Chaetoceros protuberans Schutt in Apstein, 1901
- Species Chaetoceros pseudoaurivillii Ikari, 1926
- Species Chaetoceros pseudobreve Pavillard, 1911 accepted as Chaetoceros brevis F.Schütt, 1895
- Species Chaetoceros pseudobrevis Pavillard, 1911
- Species Chaetoceros pseudocrinitum Ostenfeld, 1901
- Species Chaetoceros pseudocrinitus Ostenfeld, 1901
- Species Chaetoceros pseudocurvisetum L. Mangin, 1910
- Species Chaetoceros pseudocurvisetus Mangin, 1910
- Species Chaetoceros pseudodichaeta J.Ikari, 1926
- Species Chaetoceros pseudosimile Cleve-Euler, 1937
- Species Chaetoceros pseudosimilis Cleve-Euler accepted as Chaetoceros pseudosimile Cleve-Euler, 1937
- Species Chaetoceros pseudosymmetricus Nielsen, 1931
- Species Chaetoceros pyxillae Jurilj, 1957
- Species Chaetoceros quillensis L.W. Bailey, 1922
- Species Chaetoceros radians F.Schütt, 1895
- Species Chaetoceros radicans F.Schütt, 1895
- Species Chaetoceros radiculum Castracane, 1886
- Species Chaetoceros ralfsii Cleve, 1873
- Species Chaetoceros ralfsii Schütt, 1896
- Species Chaetoceros ralfsii Van Heurck, 1883
- Species Chaetoceros ramosus Korotkevicz, 1964
- Species Chaetoceros rectus Hernandez-Becerril, 1992
- Species Chaetoceros recurvatus Henckel, 1909
- Species Chaetoceros reichelti Hustedt in Schimdt et al., 1921
- Species Chaetoceros remotus Cleve & Grunow, 1880
- Species Chaetoceros rigidus Ostenfeld, 1902
- Species Chaetoceros robustum (Cleve) Ostenfeld in Ostenfeld & Schmidt, 1901 accepted as Chaetoceros peruvianum var. robustum Cleve, 1873
- Species Chaetoceros robustus Makarova, 1961
- Species Chaetoceros rogersii (Ehrenberg) Rabenhorst, 1864 accepted as Goniothecium rogersii Ehrenberg, 1843 †
- Species Chaetoceros rostratus Ralfs, 1864
- Species Chaetoceros rotosporus Li, Lundholm & Moestrup, 2013
- Species Chaetoceros rude Leuduger-Fortmorel, 1892
- Species Chaetoceros rudis (Cleve) Cleve, 1901 accepted as Chaetoceros borealis var. rudis Cleve, 1897
- Species Chaetoceros russanowii Henckel, 1925
- Species Chaetoceros salsugineus Takano, 1983
- Species Chaetoceros saltans Cleve, 1897
- Species Chaetoceros sarmaticus
- Species Chaetoceros scabrosus Proschkina-Lavrenko, 1955
- Species Chaetoceros sceleton Hensen, 1911
- Species Chaetoceros schimperianus G.Karsten, 1905
- Species Chaetoceros schmidtii C.E.H.Ostenfeld
- Species Chaetoceros schuettii Cleve
- Species Chaetoceros schuttii Cleve accepted as Chaetoceros affinis Lauder, 1864
- Species Chaetoceros scolopendra Cleve, 1896
- Species Chaetoceros scriptus Frenguelli, 1949
- Species Chaetoceros secundus Cleve, 1873
- Species Chaetoceros secundus Schutt, 1893
- Species Chaetoceros sedowii Henckel, 1925
- Species Chaetoceros seiracanthus Gran, 1897
- Species Chaetoceros septentrionale Østrup, 1895
- Species Chaetoceros septentrionalis Østrup, 1895 accepted as Attheya septentrionalis (Østrup) R.M.Crawford, 1994
- Species Chaetoceros septentrionalis Cleve, 1896
- Species Chaetoceros seriacanthus Gran
- Species Chaetoceros sessilis Grøntved, 1951
- Species Chaetoceros setoense J.Ikari
- Species Chaetoceros setoensis Ikari, 1926
- Species Chaetoceros seychellarum Karsten, 1907
- Species Chaetoceros seychellarus Karsten, 1907
- Species Chaetoceros siamense Ostenfeld, 1902
- Species Chaetoceros sigmocalamus Tempère & Brun in Brun & Tempère, 1889
- Species Chaetoceros similis Cleve, 1896
- Species Chaetoceros similoides Hustedt, 1956
- Species Chaetoceros simplex Ostenfeld, 1902
- Species Chaetoceros skeleton F.Schütt, 1895
- Species Chaetoceros skeleton Van Heurck, 1909
- Species Chaetoceros sociale H.S. Lauder, 1864
- Species Chaetoceros socialis H.S.Lauder, 1864
- Species Chaetoceros solitarius (Cleve) Cleve, 1897 accepted as Chaetoceros borealis f. solitaria Cleve, 1897
- Species Chaetoceros spinosus Leuduger-Fortmorel, 1898
- Species Chaetoceros spirillum (Castracane) De Toni, 1894 accepted as Bacteriastrum spirillum Castracane, 1886
- Species Chaetoceros ssedowi Henckel, 1925
- Species Chaetoceros strictus Karsten, 1905
- Species Chaetoceros subcompressus Schroder, 1900
- Species Chaetoceros subconicus Semina in Semina & Sergeeva, 1982
- Species Chaetoceros subcoronatus Krasske, 1941
- Species Chaetoceros subjunctum J.W. Bailey in Bailey Collection
- Species Chaetoceros subsalsus Lemmermann, 1904
- Species Chaetoceros subsalsus Hustedt in Schmidt, 1920
- Species Chaetoceros subsecundus (Grunow ex Van Heurck) Hustedt, 1927 accepted as Chaetoceros distans var. subsecunda Grunow in Van Heurck, 1883
- Species Chaetoceros subtilis Cleve, 1896
- Species Chaetoceros subtortilis Proschkina-Lavrenko, 1961
- Species Chaetoceros sumatranus Karsten, 1907
- Species Chaetoceros surirella Frenguelli, 1949
- Species Chaetoceros symmetricus (Leuduger-Fortmorel) De Toni, 1894 accepted as Bacteriastrum symmetricum Leuduger-Fortmorel, 1892
- Species Chaetoceros tenellus Ehrenberg, 1872
- Species Chaetoceros tenuissimus Meunier, 1913
- Species Chaetoceros tenuissumus Meunier, 1913
- Species Chaetoceros teres Cleve, 1896
- Species Chaetoceros tetrachaeta Ehrenberg, 1840
- Species Chaetoceros tetras Karsten, 1905
- Species Chaetoceros tetrastichon Cleve, 1897
- Species Chaetoceros tetrastichus Kisselev, 1959
- Species Chaetoceros thienemanni Hustedt, 1925
- Species Chaetoceros thienemannii Hustedt, 1925
- Species Chaetoceros throndsenii (Marino, Montresor & Zingone) Marino, Montresor & Zingone, 1991 accepted as Miraltia throndsenii Marino, Montresor & Zingone, 1987
- Species Chaetoceros tiltilensis Frenguelli, 1949
- Species Chaetoceros tortilisetus L. Mangin, 1910
- Species Chaetoceros tortissimus Gran, 1900
- Species Chaetoceros transisetus Johansen & Boyer, 1995
- Species Chaetoceros tuberculosus Gutwinski, 1895
- Species Chaetoceros turbineus Makarova & Proschkina-Lavrenko, 1964
- Species Chaetoceros uruguayensis Muller-Melchers, 1953
- Species Chaetoceros valdivae (Karsten) Mills, 1933 accepted as Corethron valdiviae Karsten, 1904
- Species Chaetoceros validum Grunow in Cleve & Möller, 1878
- Species Chaetoceros vanheurckii Gran, 1897
- Species Chaetoceros vanheurckii Karsten, 1907
- Species Chaetoceros varians Van Heurck, 1885
- Species Chaetoceros vermiculus F.Schütt
- Species Chaetoceros vistulae Apstein, 1909
- Species Chaetoceros vixvisibilis Schiller in Hustedt, 1930
- Species Chaetoceros volans Schütt, 1895
- Species Chaetoceros weissflogii F.Schütt, 1905
- Species Chaetoceros weissflogii Cleve, 1901
- Species Chaetoceros wighami
- Species Chaetoceros wighamii Brightwell, 1856
- Species Chaetoceros wighamii Cleve & Grunow, 1880
- Species Chaetoceros wighamii Grunow in Van Heurck, 1882
- Species Chaetoceros wighamoides Cholnoky, 1966
- Species Chaetoceros willei Gran, 1897
- Species Chaetoceros xishaensis Guo, Ye & Zhou, 1978
- Species Chaetoceros zachariasi
- Species Chaetoceros zachariasii Honigmann, 1909
- Species Chaetoceros ziwolki Henckel, 1925
- Genus Gonioceros H. Peragallo in H. Peragallo & M. Peragallo, 1907
- Genus Miraltia D. Marino, M. Montresor & A. Zingone, 1987
- Genus Muelleriella H. Van Heurck, 1896 † accepted as Muelleriopsis N.I. Hendey, 1972 †
- Genus Peripteropsis I. Suto, 2005
- Genus Vallodiscus I. Suto, 2005
- Order Leptocylindrales (2)
- Superorder Corethranae (1)
- Superorder Coscinodiscanae (300)
- Superorder Cymatosirophycanae (10)
- Superorder Lithodesmiophycanae (7)
- Superorder Rhizosolenianae (38)
- Superorder Thalassiosiranae (192)
- Order Arcanodiscales (5)
- Order Stictocyclales
- Subclass Fragilariophycidae (483)
- Order Centrales
