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Cymbellaceae Greville, 1833

149537  (urn:lsid:marinespecies.org:taxname:149537)

accepted
Family
Genus Alveocymba Kapustin, Kulikovskiy & Kociolek in Kapustin et al., 2020
Genus Brebissonia A. Grunow, 1860
  » Species Brebissonia boeckii (Ehrenberg) E.O'Meara, 1875 accepted as Cocconema boeckii Ehrenberg, 1838 (uncertain > unassessed)
    » Forma Brebissonia boeckii f. boeckii (Ehrenberg) Grunow, 1860 accepted as Cocconema boeckii Ehrenberg, 1838 (uncertain > unassessed)
    » Forma Brebissonia boeckii f. rostrata Schulz, 1926 (uncertain > unassessed)
    » Variety Brebissonia boeckii var. minor Cleve, 1894 (uncertain > unassessed)
  » Species Brebissonia boeckii sensu Pantocsek, 1902 (uncertain > unassessed)
  » Species Brebissonia interposita (Lewis) Kuntze, 1898 accepted as Navicula interposita Lewis, 1865 (uncertain > unassessed)
  » Species Brebissonia lanceolata (C.Agardh) Mahoney & Reimer, 1986 accepted as Gomphonema lanceolatum C.Agardh, 1831 (uncertain > unassessed)
  » Species Brebissonia lewisiana (Greville) Kuntze, 1898 accepted as Navicula lewisiana Greville, 1863 (uncertain > unassessed)
  » Species Brebissonia nordstedtii Gutwinski & Chmielewski, 1906 (uncertain > unassessed)
  » Species Brebissonia palmerii Boyer, 1916 (uncertain > unassessed)
  » Species Brebissonia rhomboides (Ehrenberg) Kuntze, 1898 accepted as Navicula rhomboides f. rhomboides Ehrenberg, 1843 (uncertain > unassessed)
  » Species Brebissonia staurophora Karsten, 1899 (uncertain > unassessed)
  » Species Brebissonia styriaca (Grunow) Kuntze, 1898 accepted as Navicula styriaca Grunow, 1880 (uncertain > unassessed)
  » Species Brebissonia vulgaris (Thwaites) Kuntze, 1898 accepted as Schizonema vulgare var. vulgare Thwaites, 1848 (uncertain > unassessed)
  » Species Brebissonia weissflogii Grunow, 1878 (uncertain > unassessed)
Genus Celebesia D. Kapustin, Kulikovskiy & Kociolek, 2017
Genus Cymbella C.A. Agardh, 1830
  » Species Cymbella affinis Kützing, 1844
    » Variety Cymbella affinis var. angusta (Krammer, 2002) W.Silva, 2015
    » Variety Cymbella affinis var. neoprocera W.Silva, 2015
    » Variety Cymbella affinis var. subcapitata (Krammer, 2002) W.Silva, 2015
    » Forma Cymbella affinis f. affinis Kützing, 1844 (uncertain > unassessed)
    » Forma Cymbella affinis f. curta Cleve & Möller, 1882 (uncertain > unassessed)
    » Forma Cymbella affinis f. excisa (Kützing) Grunow, 1882 accepted as Cymbella excisa Kützing, 1844 (uncertain > unassessed)
    » Forma Cymbella affinis f. venter Martinez de Fabricius, 1999 (uncertain > unassessed)
    » Forma Cymbella affinis f. ventriconcava Obukhova, 1959 (uncertain > unassessed)
    » Variety Cymbella affinis var. afarensis Gasse, 1986 (uncertain > unassessed)
    » Variety Cymbella affinis var. elegans Mereschkowsky, 1906 (uncertain > unassessed)
    » Variety Cymbella affinis var. excisa (Kützing) Grunow, 1882 accepted as Cymbella excisa Kützing, 1844 (uncertain > unassessed)
    » Variety Cymbella affinis var. genuina Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella affinis var. gracilis Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella affinis var. gracilis Grunow in Cleve & Möller, 1882 (uncertain > unassessed)
    » Variety Cymbella affinis var. leptoceras (Ehrenberg) Brun, 1880 accepted as Cocconema leptoceros Ehrenberg, 1843 (uncertain > unassessed)
    » Variety Cymbella affinis var. maculata Shtin, 1945 (uncertain > unassessed)
    » Variety Cymbella affinis var. maior Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella affinis var. nana (Hassall in Rabenhorst) Grunow accepted as Cocconema gibbum var. nanum Hassall in Rabenhorst, 1860-1879 (uncertain > unassessed)
    » Variety Cymbella affinis var. obesa Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella affinis var. primigenia E. Manguin, 1949 (uncertain > unassessed)
    » Variety Cymbella affinis var. procera Krammer, 2002 accepted as Cymbella tumidula var. procera (Krammer, 2002) W.Silva, 2015 (uncertain > unassessed)
    » Variety Cymbella affinis var. selengensis Skvortzov, 2012 (uncertain)
    » Variety Cymbella affinis var. semicircularis Lagerstedt, 1873 (uncertain > unassessed)
    » Variety Cymbella affinis var. truncata Grunow in Van Heurck, 1880-1885 (uncertain > unassessed)
    » Variety Cymbella affinis var. tumida Lagerstedt, 1873 (uncertain > unassessed)
    » Variety Cymbella affinis var. ventriconcava Obukhova, 1961 (uncertain > unassessed)
  » Species Cymbella amphioxys Cleve, 1894
    » Forma Cymbella amphioxys f. amphioxys Cleve, 1894 (uncertain > unassessed)
    » Forma Cymbella amphioxys f. minor Cholnoky & Schindler, 1953 (uncertain > unassessed)
    » Forma Cymbella amphioxys f. parallela (Cleve-Euler) Cleve-Euler, 1955 accepted as Cymbella amphioxys var. parallela Cleve-Euler, 1934 (uncertain > unassessed)
    » Forma Cymbella amphioxys f. typica Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella amphioxys var. asiatica Skvortzow, 1938 (uncertain > unassessed)
    » Variety Cymbella amphioxys var. parallela Cleve-Euler, 1934 (uncertain > unassessed)
  » Species Cymbella andranokelyna Manguin
    » Forma Cymbella andranokelyna f. acuminata E. Manguin, 1949 (uncertain > unassessed)
    » Forma Cymbella andranokelyna f. acuminata E. Manguin, 1949 (uncertain > unassessed)
    » Variety Cymbella andranokelyna var. andranokelyna Manguin in Lenoble, 1948 (uncertain > unassessed)
    » Variety Cymbella andranokelyna var. andranokelyna E. Manguin, 1949 (uncertain > unassessed)
    » Variety Cymbella andranokelyna var. gibbosa E. Manguin, 1949 (uncertain > unassessed)
    » Variety Cymbella andranokelyna var. incurvata E. Manguin, 1949 (uncertain > unassessed)
  » Species Cymbella aspera (Ehrenberg) Cleve, 1894
    » Forma Cymbella aspera f. baicalensis Skvortzow accepted as Cymbella aspera f. baicalensis Skvortzow & Meyer, 1928 (quadranomial)
    » Forma Cymbella aspera f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Forma Cymbella aspera f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Variety Cymbella aspera var. aspera (Ehrenberg) Cleve, 1894 accepted as Cocconema asperum Ehrenberg, 1840 (uncertain > unassessed)
    » Variety Cymbella aspera var. bengalensis (Grunow) Cleve, 1894 accepted as Cymbella bengalensis Grunow, 1875 (uncertain > unassessed)
    » Variety Cymbella aspera var. crassa (Grunow) Cleve, 1894 † accepted as Cymbella gastroides var. crassa Grunow, 1882 † (uncertain > unassessed)
    » Variety Cymbella aspera var. dubravicensis (Grunow) Cleve, 1894 † accepted as Cymbella gastroides var. dubravicensis Grunow, 1882 † (uncertain > unassessed)
    » Variety Cymbella aspera var. elongata Skvortzow, 1928 (uncertain > unassessed)
    » Variety Cymbella aspera var. fossilis Skvortzow, 1937 (uncertain > unassessed)
    » Variety Cymbella aspera var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella aspera var. gigantea Cleve-Euler, 1934 (uncertain > unassessed)
    » Variety Cymbella aspera var. gigas McCall, 1933 (uncertain > unassessed)
    » Variety Cymbella aspera var. gigas Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella aspera var. incerta Erlandss., 1927 (uncertain > unassessed)
    » Variety Cymbella aspera var. intermedia Skvortzow, 1929 (uncertain > unassessed)
    » Variety Cymbella aspera var. manschurica Skvortzow, 1928 (uncertain > unassessed)
    » Variety Cymbella aspera var. minor (Van Heurck) Cleve, 1894 accepted as Cymbella gastroides var. minor Van Heurck, 1880 (uncertain > unassessed)
    » Variety Cymbella aspera var. neogena (Grunow) Cleve, 1894 accepted as Cymbella gastroides var. neogena Grunow, 1882 (uncertain > unassessed)
    » Variety Cymbella aspera var. remotestriata Pantocsek, 1913 (uncertain > unassessed)
    » Variety Cymbella aspera var. shantungensis Voight, 1943 (uncertain > unassessed)
    » Variety Cymbella aspera var. substomatophora Gutwinski ex Schönfeldt, 1913 (uncertain > unassessed)
    » Variety Cymbella aspera var. truncata (Rabenhorst) Skvortzov, 1936 accepted as Cymbella truncata Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella baicaloaustralica Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella baicalocompacta Kulikovskiy, Lange-Bert. & Metzeltin in Kulikovskiy et al., 2012
  » Species Cymbella baicaloleptoceros Rodionova & Pomazkina, 2014
  » Species Cymbella bharatensis Sarode & Kamat, 1984
  » Species Cymbella blinnii L.L.Bahls, 2014
  » Species Cymbella buryatica Metzeltin, Kulikovskiy & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella chandolensis H.P.Gandhi, 1964
  » Species Cymbella clericii Frenguelli, 1923
    » Variety Cymbella clericii var. andina E. Manguin, 1964 (uncertain > unassessed)
    » Variety Cymbella clericii var. aueri Cleve-Euler, 1948 (uncertain > unassessed)
  » Species Cymbella coamoensis Hagelstein, 1939
  » Species Cymbella cognata Y.V.Rodionova, G.V.Pomazkina & O.Y. Makarevich, 2013
  » Species Cymbella cognata Pomazkina & Rodionova, 2014
  » Species Cymbella compactiformis B. Liu & D.M. Williams
  » Species Cymbella cosleyi L.Bahls, 2013
  » Species Cymbella densigranulata D. Kapustin, Kociolek & Kulikovskiy
  » Species Cymbella distalebiseriata Bing Liu & D.M. Williams, 2018
  » Species Cymbella eunotioformis D. Kapustin, Kociolek & Kulikovskiy
  » Species Cymbella fontinalis Bahls, 2019
  » Species Cymbella fuxianensis Li & Gong in Gong & Li, 2011
  » Species Cymbella gonzalvesii Sarode & Kamat, 1984
  » Species Cymbella gracile
    » Forma Cymbella gracile f. minima Mereschkowsky, 1903 (uncertain > unassessed)
  » Species Cymbella gravida C. Recasens & N.I. Maidana, 2013
  » Species Cymbella heihainensis Li & Gong, 2013
  » Species Cymbella hubeiensis Li Y., 2013 †
  » Species Cymbella jachalensis Bustos et al., 2018
  » Species Cymbella jalgaonensis Sarode & Kamat, 1984
  » Species Cymbella jianghanensis Shi, 1991 †
  » Species Cymbella jilinensis Huang in Huang et al., 1983 †
  » Species Cymbella khursevichiae D. Kapustin, Kociolek & Kulikovskiy
  » Species Cymbella kultukensis Rodionova & Pomazkina, 2014
  » Species Cymbella lacusbaicalensis Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella leptoceras
    » Forma Cymbella leptoceras f. curta Grunow (uncertain > unassessed)
    » Variety Cymbella leptoceras var. angusta Grunow, 1882 (uncertain > unassessed)
    » Variety Cymbella leptoceras var. gracilis (Ehrenberg) H. Peragallo in Pelletan, 1889 accepted as Cocconema gracile Ehrenberg, 1841 (uncertain > unassessed)
    » Variety Cymbella leptoceras var. minor Grunow, 1882 (uncertain > unassessed)
  » Species Cymbella liyangensis Zhang, Jüttner & E.J. Cox, 2018
  » Species Cymbella loescherae M. Garcia & D. B. Dutra, 2016
  » Species Cymbella maharashtrensis Sarode & Kamat, 1984
  » Species Cymbella marathwadensis Sarode & Kamat, 1984
  » Species Cymbella margaritae D. Kapustin, Kociolek & Kulikovskiy
  » Species Cymbella marvanii Le Cohu & Tudesque, 2015
  » Species Cymbella mendosa VanLandingham, 1969
  » Species Cymbella microlacusbaicalensis Kulikovskiy, Lange-Bert. & Metzeltin in Kulikovskiy et al., 2012
  » Species Cymbella moelleriana Grunow
    » Forma Cymbella moelleriana f. gibbosa Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella moelleriana f. moelleriana Mayer, 1931 (uncertain > unassessed)
    » Forma Cymbella moelleriana f. moelleriana Grunow in Schmidt, 1875 (uncertain > unassessed)
    » Forma Cymbella moelleriana f. typica Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella moelleriana var. argunica Skvortzov, 2012 (uncertain)
    » Variety Cymbella moelleriana var. genuina Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella moelleriana var. grunowii Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella moelleriana var. inflata Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella moelleriana var. mayeri Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella moelleriana var. nipponica Skvortzow, 1937 (uncertain > unassessed)
  » Species Cymbella nagpurensis Sarode & Kamat, 1984
  » Species Cymbella neolanceolata W.da Silva, 2013
  » Species Cymbella neuquina Frenguelli, 1942
  » Species Cymbella nikitii Rodionova & Pomazkina, 2014
  » Species Cymbella nurnussiensis Poretsky
    » Forma Cymbella nurnussiensis f. elongata Poretzky, 1950 (uncertain > unassessed)
    » Forma Cymbella nurnussiensis f. nurnussiensis Poretzky & Proschkina-Lavrenko, 1950 (uncertain > unassessed)
  » Species Cymbella olchonica Rodionova & Pomazkina, 2014
  » Species Cymbella olgae Rodionova & Pomazkina, 2014
  » Species Cymbella olgae Y.V. Rodionova, G.V. Pomazkina & O.Y. Makarevich, 2013
  » Species Cymbella osmanabadensis Sarode & Kamat, 1984
  » Species Cymbella paenetruncata Li, Y. & Z.Gong, 2013 †
  » Species Cymbella paraintermedia Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella pavanaensis A.Vigneshwaran, Kulikovskiy, Kociolek & B.Karthick in Vigneshwaran et al., 2019
  » Species Cymbella pisciculus Gregory, 1856
    » Variety Cymbella pisciculus var. amphioxys according to Cleve-Euler (uncertain > unassessed)
    » Variety Cymbella pisciculus var. amphioxys Grunow in Cleve & Möller, 1879 (uncertain > unassessed)
    » Variety Cymbella pisciculus var. incerta (Grunow) Grunow, 1881 accepted as Cymbella incerta Grunow, 1878 (uncertain > unassessed)
    » Variety Cymbella pisciculus var. naviculacea Grunow, 1881 (uncertain > unassessed)
    » Variety Cymbella pisciculus var. pisciculus Gregory, 1856 (uncertain > unassessed)
  » Species Cymbella powaiana Gandhi, 1960
  » Species Cymbella proxima Reimer, 1975
    » Forma Cymbella proxima f. gravida Reimer, 1975 (uncertain > unassessed)
    » Variety Cymbella proxima var. borealis Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella proxima var. bottnica Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella pseudoamplificata Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella pseudocuspidata H.P.Gandhi, 1959
  » Species Cymbella pseudohantzschiana Rodionova & Pomazkina, 2014
  » Species Cymbella pseudolacusbaicalensis Kulikovskiy, Lange-Bert. & Metzeltin in Kulikovskiy et al., 2012
  » Species Cymbella pseudostuxbergii Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella pulchra Li, Y. & Lange-Bertalot, 2013 †
  » Species Cymbella reinhardii
    » Variety Cymbella reinhardii var. nipponica Skvortzow & Noda, 1971 (uncertain > unassessed)
  » Species Cymbella rivularis Gandhi, 1959
  » Species Cymbella shii Li Y., 2013 †
  » Species Cymbella shudunensis Li & Metzeltin, 2013
  » Species Cymbella stigmacentralis B. Liu & D.M. Williams
  » Species Cymbella stuxbergioides Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella subskvortzowii Kulikovskiy, Metzeltin & Lange-Bert. in Kulikovskiy et al., 2012
  » Species Cymbella subtravertiensis C.L.Graeff & J.P.Kociolek, 2013
  » Species Cymbella tenuistriata Shi, 1991 †
  » Species Cymbella vidarbhensis Sarode & Kamat, 1984
  » Species Cymbella xiaojinensis Li in Zhang et al., 2021
  » Species Cymbella xingyunnensis Li & Gong, 2013
  » Species Cymbella yangtzensis Li, Y. & D.Metzeltin, 2013 †
  » Species Cymbella alpina Grunow, 1863 accepted as Encyonema alpinum (Grunow) D.G.Mann, 1990 (synonym)
    » Forma Cymbella alpina f. alpina Grunow, 1863 (uncertain > unassessed)
    » Forma Cymbella alpina f. intermedia Manguin, 1952 (uncertain > unassessed)
    » Forma Cymbella alpina f. minor Brun & Héribaud in Héribaud, 1893 (uncertain > unassessed)
    » Forma Cymbella alpina f. nipponica Skvortzow, 1937 (uncertain > unassessed)
    » Forma Cymbella alpina f. variabilis Manguin, 1952 (uncertain > unassessed)
    » Variety Cymbella alpina var. alpina Brun & Heribaud, 1893 (uncertain > unassessed)
    » Variety Cymbella alpina var. minor (Brun & Héribaud in Héribaud) Mills, 1934 accepted as Cymbella alpina f. minor Brun & Héribaud in Héribaud, 1893 (uncertain > unassessed)
    » Variety Cymbella alpina var. minuta Cleve-Euler, 1939 (uncertain > unassessed)
    » Variety Cymbella alpina var. notata Pantocsek, 1913 (uncertain > unassessed)
    » Variety Cymbella alpina var. sibirica Skvortzov, 2012 (uncertain)
  » Species Cymbella aspera (Ehrenberg) H.Peragallo, 1889 accepted as Cymbella aspera (Ehrenberg) Cleve, 1894
  » Species Cymbella caespitosum (Kützing) Brun, 1880 accepted as Encyonema caespitosum Kützing, 1849 (synonym)
    » Forma Cymbella caespitosum f. minor Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella caespitosum f. minuta (Grunow in Van Heurck) Woodhead & Tweed (uncertain > unassessed)
    » Variety Cymbella caespitosum var. hybrida Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella caespitosum var. pediculus (Kützing) Brun, 1880 accepted as Cymbella pediculus Kützing, 1844 (uncertain > unassessed)
    » Variety Cymbella caespitosum var. recta (Cleve-Euler) Cleve-Euler, 1955 accepted as Cymbella recta Cleve-Euler, 1915 (uncertain > unassessed)
    » Variety Cymbella caespitosum var. semicircularis (Lagerstedt) Woodhead & Tweed, 1954 accepted as Cymbella affinis var. semicircularis Lagerstedt, 1873 (uncertain > unassessed)
    » Variety Cymbella caespitosum var. ventricosa (Agardh) Brun, 1880 accepted as Cymbella ventricosa f. ventricosa Agardh, 1830 (uncertain > unassessed)
  » Species Cymbella cesati accepted as Encyonopsis cesatii (Rabenhorst) Krammer, 1997 (misspelled synonym)
  » Species Cymbella cornuta (Ehrenberg) R.Ross, 1950 † accepted as Cymbella lanceolata var. cornuta (Ehrenberg) Grunow, 1882 † (synonym)
  » Species Cymbella cristata (Frenguelli) VanLandingham, 1969 accepted as Encyonema cristatum Frenguelli, 1933 (Taxonomic synonym)
  » Species Cymbella delauneyi E. Manguin, 1949 accepted as Crucicostulifera bebourensis M.Coste, R.Le Cohu & G.Gassiole, 2014
  » Species Cymbella dorse-notata Østrup, 1910 accepted as Cymbella dorsenotata Østrup, 1910
  » Species Cymbella falaisiensis Grunow in Van Heurck, 1880 accepted as Cymbella falaisensis (Grunow) Krammer & Lange-Bertalot, 1985
  » Species Cymbella inaequalis (Ehrenberg) Rabenhorst, 1847 † accepted as Cymbopleura inaequalis (Ehrenberg) Krammer, 2003 (synonym)
  » Species Cymbella jianghanensis Li Y., 2013 † (unaccepted > nomen nudum, name was used in 1991)
  » Species Cymbella kerguelenensis Germain, 1937 accepted as Encyonopsis kerguelensis (Germain) Krammer, 2003 (This name was never proposed by Germain, but was listed in Krammer, 1997, p. 160 as an error.)
  » Species Cymbella lanceolata (C.Agardh) Kirchner, 1878 accepted as Brebissonia lanceolata (C.Agardh) Mahoney & Reimer, 1986 (synonym)
  » Species Cymbella muelleri Cholnoky, 1953 accepted as Encyonema muelleri (Hustedt) D.G.Mann, 1990
    » Variety Cymbella muelleri var. groenlandica Foged, 1973 (uncertain > unassessed)
    » Variety Cymbella muelleri var. ventralis Zanon, 1941 (uncertain > unassessed)
  » Species Cymbella oliffii Cholnoky, 1956 accepted as Encyonopsis oliffii (Cholnoky) Krammer, 1997
    » Variety Cymbella oliffii var. minor Cholnoky, 1962 (uncertain > unassessed)
  » Species Cymbella perjaponica Krammer & Lange-Bertalot, 2002 accepted as Oricymba perjaponica (Krammer & Lange-Bertalot) Kulikovskiy, Glushchenko & Kociolek, 2015 (New Combination)
  » Species Cymbella prostrata (Berkeley) Grun, 1880 accepted as Encyonema prostratum (Berkeley) Kützing, 1844 (synonym)
    » Forma Cymbella prostrata f. minor Skvortzow, 1946 (uncertain > unassessed)
    » Forma Cymbella prostrata f. prostrata (Berkeley) Grun, 1880 accepted as Monema prostratum Berkeley, 1832 (uncertain > unassessed)
    » Forma Cymbella prostrata f. undulata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella prostrata var. baikalensis Skvortzov, 2012 (uncertain)
    » Variety Cymbella prostrata var. caespitosa (Kützing) Foged, 1974 accepted as Encyonema caespitosum Kützing, 1849 (uncertain > unassessed)
    » Variety Cymbella prostrata var. curvata Skvortzow & Noda, 1971 (uncertain > unassessed)
    » Variety Cymbella prostrata var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella prostrata var. hybrida Skvortzov, 2012 (uncertain)
    » Variety Cymbella prostrata var. robusta (Cleve-Euler) Cleve-Euler, 1955 accepted as Cymbella turgida var. robusta (Cleve-Euler) Cleve-Euler, 1932 (uncertain > unassessed)
    » Variety Cymbella prostrata var. undulata Prudent, 1905 (uncertain > unassessed)
  » Species Cymbella ruttneri Hustedt, 1935 accepted as Encyonopsis ruttneri (Hustedt) Krammer, 1997 (Homotypic Synonym)
    » Variety Cymbella ruttneri var. obtusa Hustedt, 1937 accepted as Encyonopsis ruttneri var. obtusa (Hustedt) Krammer, 1997 (Homotypic Synonym)
    » Variety Cymbella ruttneri var. liaotungensis Skvortzow, 1946 (uncertain > unassessed)
    » Variety Cymbella ruttneri var. microcephala Cholnoky, 1954 (uncertain > unassessed)
  » Variety Cymbella var. hercynica A. Schmidt, 1875 accepted as Cymbella amphicephala var. hercynica (A.Schmidt) Cleve, 1894
  » Species Cymbella zimmermannii D.F.Gomes & D.M.Williams, 2012 accepted as Cymbella capitata Zimmermann, 1918
  » Species Cymbella abbottii Cholnoky & Claus, 1961 accepted as Encyonopsis abbottii (Cholnoky & Claus) Krammer, 1997 (uncertain > unassessed)
  » Species Cymbella abnormis Grunow, 1880 (uncertain > unassessed)
    » Variety Cymbella abnormis var. abnormis Grunow, 1880 (uncertain > unassessed)
    » Variety Cymbella abnormis var. antiqua Grunow, 1882 (uncertain > unassessed)
    » Variety Cymbella abnormis var. fossilis Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella abyssinica Grunow, 1886 (uncertain > unassessed)
  » Species Cymbella aculeata Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella acuminata Beling et al., 1936 (uncertain > unassessed)
  » Species Cymbella acuta (Lyngbye) C.Agardh, 1830 (uncertain > unassessed)
    » Forma Cymbella acuta f. acuta (Schmidt in Schmidt et al.) Cleve, 1894 accepted as (uncertain > unassessed, alternative representation)
  » Species Cymbella acuta Lauby, 1910 (uncertain > unassessed)
    » Forma Cymbella acuta f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Variety Cymbella acuta var. minor Zanon, 1941 (uncertain > unassessed)
  » Species Cymbella acutiuscula Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella acutiuscula var. minor Foged, 1971 (uncertain > unassessed)
  » Species Cymbella adnata (Kützing) Brébisson & Godey (uncertain > unassessed)
  » Species Cymbella adnata Montagne, 1840 (uncertain > unassessed)
  » Species Cymbella advena VanLandingham, 1969 (uncertain > unassessed)
  » Species Cymbella aequalis W.Smith, 1855 accepted as Encyonopsis aequalis (W.Smith) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
    » Forma Cymbella aequalis f. ceylonica Skvortzow, 1930 (uncertain > unassessed)
    » Forma Cymbella aequalis f. linearis Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella aequalis f. minor Stone in McLaughlin & Stone, 1986 (uncertain > unassessed)
    » Forma Cymbella aequalis f. minor Østrup, 1910 (uncertain > unassessed)
    » Forma Cymbella aequalis f. platycephala (Mayer) Cleve-Euler, 1955 accepted as Cymbella aequalis var. platycephala Mayer, 1919 (uncertain > unassessed)
    » Forma Cymbella aequalis f. subundulata Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella aequalis f. undulata Hustedt, 1931 (uncertain > unassessed)
    » Variety Cymbella aequalis var. alaskaensis E. Manguin, 1960 (uncertain > unassessed)
    » Variety Cymbella aequalis var. alaskensis Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
    » Variety Cymbella aequalis var. diminuta (Grunow) Cleve, 1894 accepted as Cymbella obtusa var. diminuta Grunow, 1882-1885 (uncertain > unassessed)
    » Variety Cymbella aequalis var. florentina (Grunow) Cleve, 1894 † accepted as Cymbella subaequalis var. florentina Grunow, 1880 † (uncertain > unassessed)
    » Variety Cymbella aequalis var. florentina [sensu] Cleve-Euler, 1939 (uncertain > unassessed)
    » Variety Cymbella aequalis var. florentinoides Maillard, 1962 (uncertain > unassessed)
    » Variety Cymbella aequalis var. fossilis Cleve-Euler, 1934 (uncertain > unassessed)
    » Variety Cymbella aequalis var. genuina Mayer, 1919 (uncertain > unassessed)
    » Variety Cymbella aequalis var. grevillei Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella aequalis var. hybrida Grunow in Schmidt et al., 1881 (uncertain > unassessed)
    » Variety Cymbella aequalis var. lapponica Cleve-Euler, 1934 (uncertain > unassessed)
    » Variety Cymbella aequalis var. oblonga Fontell, 1917 (uncertain > unassessed)
    » Variety Cymbella aequalis var. oblonga Cleve-Euler, 1934 (uncertain > unassessed)
    » Variety Cymbella aequalis var. pisciculus (Gregory) Cleve-Euler, 1955 accepted as Cymbella pisciculus var. pisciculus Gregory, 1856 (uncertain > unassessed)
    » Variety Cymbella aequalis var. platycephala Mayer, 1919 (uncertain > unassessed)
    » Variety Cymbella aequalis var. subaequalis (Grunow) Mayer, 1919 accepted as Cymbella subaequalis Grunow, 1880 (uncertain > unassessed)
    » Variety Cymbella aequalis var. subinflata Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella aequalis var. undulata Mayer, 1947 (uncertain > unassessed)
  » Species Cymbella aequaloides Archibald, 1966 (uncertain > unassessed)
  » Species Cymbella affiniformis Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella affinis [sensu] Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella alaskana Patrick & Freese, 1961 (uncertain > unassessed)
  » Species Cymbella algida Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella alpestris Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella alpha Heinzerling, 1908 (uncertain > unassessed)
  » Species Cymbella alpinoides Hustedt, 1937 (uncertain > unassessed)
  » Species Cymbella amatolensis Giffen, 1966 accepted as Encyonopsis amatolensis (Giffen) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella ambigua Mayer, 1933 (uncertain > unassessed)
  » Species Cymbella amelieana Van de Vijver & Lange-Bert. (uncertain > unassessed)
  » Species Cymbella americana A.W.F.Schmidt, 1875 (uncertain > unassessed)
    » Variety Cymbella americana var. acuta A.Schmidt, 1881 (uncertain > unassessed)
    » Variety Cymbella americana var. genuina Cleve-Euler, 1948 (uncertain > unassessed)
    » Variety Cymbella americana var. ljungneri (Cleve-Euler) Cleve-Euler, 1948 accepted as Cymbella ljungneri Cleve-Euler, 1943 (uncertain > unassessed)
  » Species Cymbella amoyensis Voigt, 1943 (uncertain > unassessed)
  » Species Cymbella amphicephala Näegeli, 1849 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. acuta Tempère & Peragallo, 1913 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. anglica (Lagerstedt) van Heurck, 1896 † accepted as Cymbella anglica Lagerstedt, 1873 † (uncertain > unassessed)
    » Variety Cymbella amphicephala var. citrus (Carter & Bailey-Watts) Krammer, 1985 accepted as Cymbella citrus Carter & Bailey-Watts, 1981 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. conspicua Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. differta Cleve-Euler, 1932 † (uncertain > unassessed)
    » Variety Cymbella amphicephala var. genuina Mayer, 1919 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. hercynica (A.Schmidt) Cleve, 1894 accepted as Cymbella hercynica A.Schmidt, 1875 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. intermedia Cleve-Euler, 1932 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. jeniseyensis Skvortzow, 1971 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. parva Brun, 1901 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. subundulata Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. tumidula (Grunow in Schmidt et al.) DeToni, 1891 accepted as Cymbella tumidula Grunow, 1875 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. unipunctata Brun, 1895 (uncertain > unassessed)
    » Variety Cymbella amphicephala var. variostriata Foged, 1955 (uncertain > unassessed)
  » Species Cymbella amphisbaena Chernov, 1939 (uncertain > unassessed)
  » Species Cymbella amphoroides Grunow according to De Toni, 1891 (uncertain > unassessed)
  » Species Cymbella amplificata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella ampullacea Hustedt, 1942 (uncertain > unassessed)
  » Species Cymbella anaktuvukensis Foged, 1968 accepted as Encyonopsis anaktuvukensis (Foged) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella anassae Cholnoky, 1957 accepted as Encyonopsis anassae (Cholnoky) Krammer, 1997 (uncertain > unassessed)
  » Species Cymbella ancyli Cleve, 1902 † (uncertain > unassessed)
  » Species Cymbella anglica Lagerstedt, 1873 † (uncertain > unassessed)
  » Species Cymbella anglica Van Heurck, 1880 (uncertain > unassessed)
    » Variety Cymbella anglica var. averna Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella angularis K.E. Lohman, 1957 (uncertain > unassessed)
  » Species Cymbella angusta (uncertain > unassessed)
    » Variety Cymbella angusta var. angusta Zhizn et al., 1951 (uncertain > unassessed)
    » Variety Cymbella angusta var. minor Zhizn et al., 1951 (uncertain > unassessed)
  » Species Cymbella angustata (W.Smith) Cleve, 1894 accepted as Navicula angustata var. angustata W. Smith, 1853 (uncertain > unassessed)
    » Forma Cymbella angustata f. integra Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
    » Forma Cymbella angustata f. minor Kisselev, 1955 (uncertain > unassessed)
    » Variety Cymbella angustata var. capitata Mayer, 1933 (uncertain > unassessed)
    » Variety Cymbella angustata var. capitata Mayer, 1919 (uncertain > unassessed)
    » Variety Cymbella angustata var. diversistriata Musafarov, 1952 (uncertain > unassessed)
    » Variety Cymbella angustata var. genuina Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella angustata var. hinganica Skvortzov, 1976 (uncertain > unassessed)
    » Variety Cymbella angustata var. hybrida (Grunow in Schmidt et al.) Ross, 1947 accepted as Cymbella aequalis var. hybrida Grunow in Schmidt et al., 1881 (uncertain > unassessed)
    » Variety Cymbella angustata var. inaequilatera (Lagerstedt) Cleve-Euler, 1955 accepted as Navicula inaequilatera Lagerstedt, 1873 (uncertain > unassessed)
    » Variety Cymbella angustata var. iriomotense Hirano, 1965 (uncertain > unassessed)
    » Variety Cymbella angustata var. latestriata Sheshukova-Poretskaya, 1955 (uncertain > unassessed)
    » Variety Cymbella angustata var. linearis (Fontell) R.Ross, 1947 accepted as Cymbella incerta var. linearis Fontell, 1917 (uncertain > unassessed)
    » Variety Cymbella angustata var. minor Kisselev & Vozzhennikova, 1950 (uncertain > unassessed)
    » Variety Cymbella angustata var. neogenica Zanon, 1933 (uncertain > unassessed)
    » Variety Cymbella angustata var. pyrenaica Manguin in Allorge & Manguin, 1941 (uncertain > unassessed)
    » Variety Cymbella angustata var. subwulffii (Cleve-Euler) Cleve-Euler, 1955 accepted as Cymbella subwulffii Cleve-Euler, 1934 (uncertain > unassessed)
    » Variety Cymbella angustata var. tenera Marsson, 1901 (uncertain > unassessed)
  » Species Cymbella angustissima Hustedt, 1955 accepted as Encyonopsis angustissima (Hustedt) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella ankobraensis Foged, 1966 (uncertain > unassessed)
  » Species Cymbella antarctica Cleve, 1900 (uncertain > unassessed)
  » Species Cymbella antogaryana Selva, 1981 (uncertain > unassessed)
  » Species Cymbella appendiculata Godey & Brebisson (uncertain > unassessed)
  » Species Cymbella appendiculata Brebisson & Godey (uncertain > unassessed)
  » Species Cymbella appendiculata (C.Agardh) C.Agardh, 1830 accepted as Frustulia appendiculata C.Agardh, 1827 (uncertain > unassessed)
  » Species Cymbella arakawana Kobayasi, 1965 (uncertain > unassessed)
  » Species Cymbella araucaniae (Ehrenberg) Chase in Habirshaw et al., 1888 (uncertain > unassessed)
  » Species Cymbella arctica (Lagerstedt) Schmidt, 1875 accepted as Cymbella variabilis var. arctica Lagerstedt, 1873 (uncertain > unassessed)
    » Forma Cymbella arctica f. gothlandica Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella arctica f. typica Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella arctissima Metzeltin, 2002 (uncertain > unassessed)
  » Species Cymbella arcuata Cleve-Euler, 1948 (uncertain > unassessed)
  » Species Cymbella arcus Gregory, 1856 (uncertain > unassessed)
  » Species Cymbella arcus Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella arcus (Ehrenberg) Hassall, 1845 accepted as Navicula arcus Ehrenberg, 1836 (uncertain > unassessed)
  » Species Cymbella arverna M. Peragallo, 1920 (uncertain > unassessed)
  » Species Cymbella asiatica D. Metzeltin, H. Lange-Bertalot & Y. Li in D. Metzeltin, H. Lange-Bertalot & S. Nergui, 2009 (uncertain > unassessed)
  » Species Cymbella assabensis Castracane, 1889 (uncertain > unassessed)
  » Species Cymbella aubertii Manguin in Bourrelly & Manguin, 1954 (uncertain > unassessed)
  » Species Cymbella aueri Krasske, 1949 (uncertain > unassessed)
  » Species Cymbella australica (A.Schmidt) Cleve, 1894 accepted as Cocconema australicum A.Schmidt, 1875 (uncertain > unassessed)
    » Forma Cymbella australica f. elongata Skvortzov & Meyer, 1928 (uncertain > unassessed)
    » Variety Cymbella australica var. fossilis Héribaud, 1903 (uncertain > unassessed)
    » Variety Cymbella australica var. hankensis Skvortzow, 1929 (uncertain > unassessed)
  » Species Cymbella austriaca Grunow, 1875 (uncertain > unassessed)
    » Forma Cymbella austriaca f. minor Allorge & Manguin, 1941 (uncertain > unassessed)
    » Variety Cymbella austriaca var. alaskaensis Foged, 1981 (uncertain > unassessed)
    » Variety Cymbella austriaca var. densestriata Østrup in Hartz & Østrup, 1899 (uncertain > unassessed)
    » Variety Cymbella austriaca var. excisa Grunow, 1882 (uncertain > unassessed)
    » Variety Cymbella austriaca var. fossilis Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella austriaca var. latestriata Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella austriaca var. prisca Grunow, 1882 † (uncertain > unassessed)
    » Variety Cymbella austriaca var. recta Héribaud, 1908 (uncertain > unassessed)
    » Variety Cymbella austriaca var. reducta Cleve-Euler, 1932 (uncertain > unassessed)
    » Variety Cymbella austriaca var. regularis Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella austriaca var. robusta Fontell, 1917 (uncertain > unassessed)
    » Variety Cymbella austriaca var. semirecta Manguin, 1960 (uncertain > unassessed)
    » Variety Cymbella austriaca var. subrhomboidea (Østrup) Cleve-Euler, 1932 accepted as Cymbella cymbiformis var. subrhomboidea Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella austriaca var. tumida Pantocsek, 1903 (uncertain > unassessed)
    » Variety Cymbella austriaca var. ventricosa Cleve-Euler, 1932 (uncertain > unassessed)
  » Species Cymbella austriaca Meister, 1912 (uncertain > unassessed)
    » Forma Cymbella austriaca f. borealis Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella austriaca f. minuta Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella austriaca var. erdobenyiana (Pantocsek) Krammer in Krammer & Lange-Bertalot, 1985 accepted as Cymbella erdobenyiana Pantocsek, 1889 (uncertain > unassessed)
    » Variety Cymbella austriaca var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella austriaca var. hankensis Skvortzow, 1929 (uncertain > unassessed)
    » Variety Cymbella austriaca var. oestrupii Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella avenacea Brébisson & Godey, 1835 (uncertain > unassessed)
  » Species Cymbella avenica 'Brébisson' Mills, 1934 (uncertain > unassessed)
  » Species Cymbella baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
  » Species Cymbella balatonis Grunow, 1875 (uncertain > unassessed)
    » Forma Cymbella balatonis f. curta Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella balatonis var. angusta Wislouch, 1923 (uncertain > unassessed)
    » Variety Cymbella balatonis var. angustata Pantocsek, 1902 (uncertain > unassessed)
  » Species Cymbella batthyanyiana Pantocsek, 1913 (uncertain > unassessed)
  » Species Cymbella beccarii Grunow, 1886 (uncertain > unassessed)
  » Species Cymbella behrei Foged, 1974 accepted as Encyonopsis behrei (Foged) Krammer & Metzeltin in Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella bengalensis Grunow, 1875 (uncertain > unassessed)
  » Species Cymbella bengaliformis Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella bergii Kisselev, 1932 (uncertain > unassessed)
  » Species Cymbella bernensis Meister, 1912 (uncertain > unassessed)
    » Forma Cymbella bernensis f. subundulata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella bernensis var. curvula Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella bernensis var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella bernensis var. minuta Cleve-Euler, 1922 (uncertain > unassessed)
  » Species Cymbella beverleiana Schmidt, 1881 (uncertain > unassessed)
  » Species Cymbella bicapitata Hustedt, 1942 (uncertain > unassessed)
  » Species Cymbella biceps (Ehrenberg) F.W. Mills, 1933 accepted as Cocconema biceps Ehrenberg, 1845 (uncertain > unassessed)
  » Species Cymbella bipartita A.Mayer, 1916 (uncertain > unassessed)
    » Variety Cymbella bipartita var. continua Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella bipartita var. densestriata Cleve-Euler, 1939 (uncertain > unassessed)
    » Variety Cymbella bipartita var. dubia Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella bipartita var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella bistritzae Oltean & Zanoschi, 1963 (uncertain > unassessed)
  » Species Cymbella blancheana Maillard ex Lange-Bertalot & Moser in Moser, Steindorf & Lange-Bertalot, 1995 (uncertain > unassessed)
    » Variety Cymbella blancheana var. directa Lange-Bertalot & Gerd Moser (uncertain > unassessed)
  » Species Cymbella boeckii (Grunow) F.W.Mills, 1934 accepted as Cocconema boeckii Grunow, 1875 (uncertain > unassessed)
  » Species Cymbella borapetensis Foged, 1972 accepted as Encyonopsis borapetensis (Foged) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella borealis Cleve, 1891 (uncertain > unassessed)
  » Species Cymbella borealis sensu Poretzky, Jouse & Scheschukova, 1934 (uncertain > unassessed)
  » Species Cymbella borgei Otto Müller, 1909 (uncertain > unassessed)
  » Species Cymbella botellus (Lagerstedt) Cleve, 1894 accepted as Cymbella variabilis var. botellus Lagerstedt, 1873 (uncertain > unassessed)
  » Species Cymbella bouleana Héribaud & Brun in Héribaud, 1893 (uncertain > unassessed)
  » Species Cymbella bourrellyi Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella brasiliana Cleve, 1881 accepted as Cosmioneis brasiliana (Cleve) C.E. Wetzel & Ector, 2017 (uncertain > unassessed)
  » Species Cymbella braunii Hustedt, 1955 accepted as Encyonopsis braunii (Hustedt) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella brebissoniana Gutwinski, 1909 (uncertain > unassessed)
  » Species Cymbella brehmi (uncertain > unassessed)
    » Variety Cymbella brehmi var. medio-paucistriata Miller & Falkenstrom, 1971 (uncertain > unassessed)
  » Species Cymbella brehmii Hustedt, 1912 (uncertain > unassessed)
  » Species Cymbella brevicostata Fusey, 1950 (uncertain > unassessed)
  » Species Cymbella brevieri Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella breweriana Foged, 1981 (uncertain > unassessed)
  » Species Cymbella broenlundensis Foged, 1955 (uncertain > unassessed)
  » Species Cymbella bruyanti Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella budayana Pantocsek, 1892 † (uncertain > unassessed)
  » Species Cymbella budayiana (uncertain > unassessed)
    » Variety Cymbella budayiana var. gracilior Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella buechleri Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella caespitosa (Kützing) Brun, 1880 accepted as Encyonema caespitosum Kützing, 1849 (uncertain > unassessed)
  » Species Cymbella caespitosa (Kützing) Schutt, 1896 accepted as Encyonema caespitosum Kützing, 1849 (uncertain > unassessed)
  » Species Cymbella calida Woodhead & Tweed, 1958 (uncertain > unassessed)
  » Species Cymbella cambrica Woodhead & Tweed, 1948 (uncertain > unassessed)
  » Species Cymbella cantalense Héribaud, 1908 (uncertain > unassessed)
  » Species Cymbella cantonatii Lange-Bertalot, 2002 (uncertain > unassessed)
  » Species Cymbella cantonensis Voigt, 1943 (uncertain > unassessed)
    » Variety Cymbella cantonensis var. obtusa Voigt, 1943 (uncertain > unassessed)
  » Species Cymbella capitata Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella capitata Brun, 1895 (uncertain > unassessed)
    » Variety Cymbella capitata var. lemanii Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella capitata var. suecica Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella capitata Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella capitata Zimmermann, 1918 (uncertain > unassessed)
    » Forma Cymbella capitata f. minor M. Peragallo in Héribaud et al., 1920 (uncertain > unassessed)
  » Species Cymbella capitellata Fusey, 1948 (uncertain > unassessed)
  » Species Cymbella capricornis Skvortzow, 1937 (uncertain > unassessed)
  » Species Cymbella carassius Skvortzow, 1946 (uncertain > unassessed)
  » Species Cymbella carenageana Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella cassidula Hohn & Hellerman, 1966 (uncertain > unassessed)
  » Species Cymbella cayeuxi Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella centrafricana Fusey, 1964 (uncertain > unassessed)
  » Species Cymbella cesatii (Rabenhorst) Grunow, 1881 accepted as Encyonopsis cesatii (Rabenhorst) Krammer, 1997 (uncertain > unassessed)
    » Subspecies Cymbella cesatii subsp. capitata Krieger, 1933
    » Forma Cymbella cesatii f. minor E. Manguin, 1942 (uncertain > unassessed)
    » Forma Cymbella cesatii f. schreinfrankii Selva, 1981 (uncertain > unassessed)
    » Forma Cymbella cesatii f. undulata Hustedt, 1942 accepted as Encyonopsis cesatii var. undulata (Hustedt) Krammer, 1997 (uncertain > unassessed, Homotypic Synonym)
    » Variety Cymbella cesatii var. asiatica Skvortzow, 1938 (uncertain > unassessed)
    » Variety Cymbella cesatii var. capitata Krieger, 1933 (uncertain > unassessed)
    » Variety Cymbella cesatii var. capitata Germain, 1981 (uncertain > unassessed)
    » Variety Cymbella cesatii var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella cesatii var. linearis Reimer, 1961 (uncertain > unassessed)
    » Variety Cymbella cesatii var. paradoxa Geitler, 1975, v.124(1) (uncertain > unassessed)
  » Species Cymbella charetoni Héribaud, 1902 (uncertain > unassessed)
  » Species Cymbella charrua D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez, 2005 (uncertain > unassessed)
  » Species Cymbella chasei Cholnoky, 1954 (uncertain > unassessed)
  » Species Cymbella chow-yi-liangii Skvortzov, 2012 (uncertain)
  » Species Cymbella chyzeri Pantocsek, 1889 (uncertain > unassessed)
  » Species Cymbella cimbebasiae Cholnoky, 1966 (uncertain > unassessed)
  » Species Cymbella cistula (Ehrenberg) O.Kirchner, 1878 accepted as Bacillaria cistula Ehrenberg, 1828 (uncertain > unassessed)
    » Forma Cymbella cistula f. gibbosa (Pantocsek) Cleve-Euler, 1932 accepted as Cymbella gibbosa Pantocsek, 1902 (synonym)
    » Forma Cymbella cistula f. abnormis Østrup in Héribaud, 1920 (uncertain > unassessed)
    » Forma Cymbella cistula f. anormalis Østrup, 1910 (uncertain > unassessed)
    » Forma Cymbella cistula f. baicalensis Meyer, 1930 (uncertain > unassessed)
    » Forma Cymbella cistula f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Forma Cymbella cistula f. culeata Krenner, 1926 (uncertain > unassessed)
    » Forma Cymbella cistula f. curta (A.Schmidt) Østrup, 1899 accepted as Cymbella curta Schmidt, 1875 (uncertain > unassessed)
    » Forma Cymbella cistula f. curta Van Heurck, 1880 (uncertain > unassessed)
    » Forma Cymbella cistula f. distans Mayer, 1947 (uncertain > unassessed)
    » Forma Cymbella cistula f. lata Reinhardt in Meyer & Reinhardt, 1925 (uncertain > unassessed)
    » Forma Cymbella cistula f. minor van Heurck, 1880 (uncertain > unassessed)
    » Forma Cymbella cistula f. minor Cleve-Euler, 1932 (uncertain > unassessed)
    » Forma Cymbella cistula f. minor Reichelt (uncertain > unassessed)
    » Forma Cymbella cistula f. nordenskioeldii (O. Müller) Carlson, 1913 accepted as Cymbella nordenskioeldii Otto Müller, 1909 (uncertain > unassessed)
    » Forma Cymbella cistula f. recta Mayer, 1913 (uncertain > unassessed)
    » Forma Cymbella cistula f. rostrata Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella cistula f. subrecta Østrup in Héribaud et al., 1920 (uncertain > unassessed)
    » Forma Cymbella cistula f. truncata Mayer, 1913 (uncertain > unassessed)
    » Forma Cymbella cistula f. typica (Meister) Mayer, 1913 accepted as Cymbella cistula var. typica Meister, 1912 (uncertain > unassessed)
    » Forma Cymbella cistula f. undulata Mayer, 1913 (uncertain > unassessed)
    » Variety Cymbella cistula var. africana Cholnoky, 1958 (uncertain > unassessed)
    » Variety Cymbella cistula var. amirensis Pierre, 1974 (uncertain > unassessed)
    » Variety Cymbella cistula var. angustior Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella cistula var. arctica (Lagerstedt) Cleve, 1894 accepted as Cymbella variabilis var. arctica Lagerstedt, 1873 (uncertain > unassessed)
    » Variety Cymbella cistula var. arcuata Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella cistula var. asiatica Mereschkowsky, 1906 (uncertain > unassessed)
    » Variety Cymbella cistula var. baicalensis Meyer, 1924 (uncertain > unassessed)
    » Variety Cymbella cistula var. caldostagnensis Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella cistula var. Caldostagnensis [sensu] Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella cistula var. capitata Mereschkowsky, 1906 (uncertain > unassessed)
    » Variety Cymbella cistula var. convexa Hustedt, 1955 (uncertain > unassessed)
    » Variety Cymbella cistula var. crassa (Grunow) Cleve-Euler, 1932 † accepted as Cymbella gastroides var. crassa Grunow, 1882 † (uncertain > unassessed)
    » Variety Cymbella cistula var. crassa Tempere & Peragallo, 1909 (uncertain > unassessed)
    » Variety Cymbella cistula var. crassa E. Manguin, 1960 (uncertain > unassessed)
    » Variety Cymbella cistula var. eucistula Mayer (uncertain > unassessed)
    » Variety Cymbella cistula var. excelsa Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella cistula var. exigua Duplakov, 1933 (uncertain > unassessed)
    » Variety Cymbella cistula var. fastigata Krasske, 1949 accepted as Cymbella neuquina var. fastigata (Krasske) Krammer, Maidana & Villanueva in Maidana et al., 2002 (uncertain > unassessed)
    » Variety Cymbella cistula var. fastigiata Krasske, 1949 accepted as Cymbella neuquina var. fastigata (Krasske) Krammer, Maidana & Villanueva in Maidana et al., 2002 (uncertain > unassessed)
    » Variety Cymbella cistula var. fusidium (Ehrenberg) M. Peragallo & Héribaud in Héribaud, 1893 accepted as Cocconema fusidium Ehrenberg, 1838 (uncertain > unassessed)
    » Variety Cymbella cistula var. genuflexa Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella cistula var. genuina Mayer, 1929 (uncertain > unassessed)
    » Variety Cymbella cistula var. gibbosa Brun, 1895 (uncertain > unassessed)
    » Variety Cymbella cistula var. globosa Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
    » Variety Cymbella cistula var. globulosa Gasse, 1980 (uncertain > unassessed)
    » Variety Cymbella cistula var. gracilis Hustedt, 1955 (uncertain > unassessed)
    » Variety Cymbella cistula var. gracilis Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella cistula var. hebetata (Pantocsek) Cleve-Euler, 1955 accepted as Cymbella hebetata Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella cistula var. hinganensis Skvortzow, 1928 (uncertain > unassessed)
    » Variety Cymbella cistula var. hungarica Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella cistula var. inflata Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella cistula var. insignis Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella cistula var. koreana (Skvortzow) Skvortzow, 1946 accepted as Cymbella koreana Skvortzow, 1929 (uncertain > unassessed)
    » Variety Cymbella cistula var. lacroixii (Lauby) VanLandingham, 1969 accepted as Cymbella lacroixii Lauby, 1910 (uncertain > unassessed)
    » Variety Cymbella cistula var. maculata (Kützing) Van Heurck, 1885 accepted as Frustulia maculata Kützing, 1833 (uncertain > unassessed)
    » Variety Cymbella cistula var. maculata E. Manguin, 1964 (uncertain > unassessed)
    » Variety Cymbella cistula var. major Brun, 1901 (uncertain > unassessed)
    » Variety Cymbella cistula var. manschurica Skvortzow, 1928 (uncertain > unassessed)
    » Variety Cymbella cistula var. mutabunda Lenoble & Manguin, 1949 (uncertain > unassessed)
    » Variety Cymbella cistula var. quarrerae Ferrario in Ferrario, Damascos & Bchenique, 1982 (uncertain > unassessed)
    » Variety Cymbella cistula var. recta (Mayer) Mayer, 1947 accepted as Cymbella cistula f. recta Mayer, 1913 (uncertain > unassessed)
    » Variety Cymbella cistula var. recta Mayer, 1916 (uncertain > unassessed)
    » Variety Cymbella cistula var. recta Shi, 1991 † (uncertain > unassessed)
    » Variety Cymbella cistula var. rostrata Saxena, 1968 (uncertain > unassessed)
    » Variety Cymbella cistula var. rotundata Voigt, 1943 (uncertain > unassessed)
    » Variety Cymbella cistula var. siamense Hirano, 1967 (uncertain > unassessed)
    » Variety Cymbella cistula var. siberica (Grunow) Cleve, 1894 accepted as Cocconema cistula var. siberica Grunow, 1880 (uncertain > unassessed)
    » Variety Cymbella cistula var. sinus (uncertain > unassessed)
      » Subvariety Cymbella cistula var. sinus regis Zanon, 1929 (uncertain > unassessed)
    » Variety Cymbella cistula var. tatrensis Starmach, 1973 (uncertain > unassessed)
    » Variety Cymbella cistula var. truncata (Rabenhorst) Brun, 1880 accepted as Cymbella truncata Rabenhorst, 1853 (uncertain > unassessed)
    » Variety Cymbella cistula var. typica Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella cistula var. undulata Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella cistula var. woosungensis Voigt, 1943 (uncertain > unassessed)
  » Species Cymbella cistula Schmidt in Schmidt et al., 1875 (uncertain > unassessed)
  » Species Cymbella cistuliformis Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella cistuloides Skvortzow ex Skvortzow, 1971 (uncertain > unassessed)
  » Species Cymbella citrus Carter & Bailey-Watts, 1981 (uncertain > unassessed)
  » Species Cymbella claasseniae Cholnoky, 1958 (uncertain > unassessed)
  » Species Cymbella clausii VanLandingham, 1966 (uncertain > unassessed)
  » Species Cymbella clementis Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella cleve-eulerae Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella coffeaeformis (C.Agardh) C. Agardh, 1830 (uncertain > unassessed)
  » Species Cymbella coffeaeformis auct. non Agardh (uncertain > unassessed)
  » Species Cymbella compacta Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella compacta var. curvula Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella compacta var. danica Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella compacta var. estonica (Molder) Cleve-Euler, 1955 accepted as Cymbella estonica Mölder, 1937 (uncertain > unassessed)
  » Species Cymbella comperei B.van de Vijver & C.Cocquyt, 2009 (uncertain > unassessed)
  » Species Cymbella concava Gaud, 1974 (uncertain > unassessed)
  » Species Cymbella conifera Brun & Héribaud in Héribaud, 1893 (uncertain > unassessed)
  » Species Cymbella convexa (Hustedt) Krammer, 2002 accepted as Cymbella cistula var. convexa Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella convexa Hajós, 1973 (uncertain > unassessed)
  » Species Cymbella copulata (Kützing) Brébisson & Godey (uncertain > unassessed)
  » Species Cymbella cornutum (Ehrenberg) Ross, 1950 accepted as Cocconema cornutum Ehrenberg, 1843 † (uncertain > unassessed)
  » Species Cymbella costata Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella costei Maillard, 1978 accepted as Delicata costei (Maillard) Krammer & Lange-Bertalot, 2003 (uncertain > unassessed)
  » Species Cymbella coudertii Héribaud in Héribaud et al., 1920 (uncertain > unassessed)
  » Species Cymbella couleensis Sovereign, 1963 (uncertain > unassessed)
  » Species Cymbella crassa (Grunow) Krammer, 2002 † accepted as Cymbella gastroides var. crassa Grunow, 1882 † (uncertain > unassessed)
  » Species Cymbella crassistigmata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella creguti Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella criophila Castracane, 1886 (uncertain > unassessed)
  » Species Cymbella cryptocephala Hustedt, 1942 accepted as Encyonopsis cryptocephala (Hustedt) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella cucumis A.Schmidt, 1875 (uncertain > unassessed)
    » Variety Cymbella cucumis var. delicata Tempère & Peragallo, 1909 (uncertain > unassessed)
  » Species Cymbella cuneata M. Peragallo in Tempère & Peragallo, 1908 (uncertain > unassessed)
  » Species Cymbella cursiformis Hufford & G.Collins, 1972 (uncertain > unassessed)
  » Species Cymbella curta Schmidt, 1875 (uncertain > unassessed)
  » Species Cymbella curvata Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella cuspidata Kützing, 1844 † (uncertain > unassessed)
    » Forma Cymbella cuspidata f. apiculata Fontell, 1917 (uncertain > unassessed)
    » Forma Cymbella cuspidata f. borealis Foged, 1951 (uncertain > unassessed)
    » Forma Cymbella cuspidata f. impressa Fusey, 1951 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. acuta Pero, 1893 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. anglica (Lagerstedt) Cleve-Euler, 1955 † accepted as Cymbella anglica Lagerstedt, 1873 † (uncertain > unassessed)
    » Variety Cymbella cuspidata var. anglica (Lagerstedt) Mayer, 1947 accepted as Cymbella anglica Lagerstedt, 1873 † (uncertain > unassessed)
    » Variety Cymbella cuspidata var. elliptica (Prudent) A.Mayer, 1917 accepted as Cymbella elliptica Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. minor Héribaud, 1903 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. naviculiformis Auerswald, 1864 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. obtusiuscula Grunow, 1882-1885 † (uncertain > unassessed)
    » Variety Cymbella cuspidata var. schulzii Cleve-Euler, 1934 (uncertain > unassessed)
  » Species Cymbella cuspidata W.Smith, 1853 (uncertain > unassessed)
    » Forma Cymbella cuspidata f. major Tempère & Peragallo, 1909 (uncertain > unassessed)
    » Forma Cymbella cuspidata f. maxima Rabenhorst, 1868 (uncertain > unassessed)
    » Forma Cymbella cuspidata f. maxima Rabenhorst, 1864 (uncertain > unassessed)
    » Forma Cymbella cuspidata f. minor (Héribaud) Tempère & Peragallo, 1913 accepted as Cymbella cuspidata var. minor Héribaud, 1903 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. angusta Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. attenuata Nylander, 1861 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. capitata Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. genuina Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. lanceolata Mayer, 1940 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. rostrata (Rabenhorst) Mayer, 1940 accepted as Cymbella rostrata Rabenhorst, 1853 (uncertain > unassessed)
    » Variety Cymbella cuspidata var. rostrata Schell, 1883 (uncertain > unassessed)
  » Species Cymbella cymbiformis [sensu] Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella cymbiformis (Ehrenberg) Grunow in Van Heurck, 1880 accepted as Cocconema cymbiforme (Kützing) Ehrenberg, 1838 (uncertain > unassessed)
  » Species Cymbella cymbiformis C.Agardh, 1830 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. baicalensis Rodionova & Pomazkina, 2014
    » Variety Cymbella cymbiformis var. cymbiformis
    » Forma Cymbella cymbiformis f. curvata (Cleve-Euler) Cleve-Euler, 1955 accepted as Cymbella cymbiformis var. curvata Cleve-Euler, 1932 (uncertain > unassessed)
    » Forma Cymbella cymbiformis f. excisa Cleve-Euler, 1932 (uncertain > unassessed)
    » Forma Cymbella cymbiformis f. minor Frenguelli, 1925 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. bipunctata Reichelt (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. bipunctata Cleve-Euler, 1948 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. caldostagnensis (Meister) Cleve-Euler, 1955 accepted as Cymbella cistula var. Caldostagnensis [sensu] Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. consimilis Rochoux d'Aubert in Héribaud et al., 1920 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. curvata Cleve-Euler, 1932 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. dorsepunctata Rehakova, 1980 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. genuina Cleve-Euler, 1948 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. jimboi (Pantocsek) Cleve-Euler, 1955 accepted as Cymbella jimboi Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. longa Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. multipunctata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. nerei (Pantocsek) Cleve-Euler, 1955 accepted as Cymbella nerei Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. nonpunctata Fontell, 1917 † (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. parva (W.Smith) Van Heurck, 1885 accepted as Cocconema parvum W.Smith, 1853 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. producta Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. stagnorum Brun, 1894 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. subrhomboidea Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella cymbiformis var. unipunctata Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella dadwinensis Foged, 1966 (uncertain > unassessed)
  » Species Cymbella dalaica Skvortzov, 2012 (uncertain)
  » Species Cymbella davidsonii Grunow in litt., Habirshaw et al., 1877-1894 (uncertain > unassessed)
  » Species Cymbella deblockii Héribaud in Héribaud et al., 1920 (uncertain > unassessed)
  » Species Cymbella decipiens Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella delaunayi Manguin in Lenoble, 1948 (uncertain > unassessed)
  » Species Cymbella delecta Schmidt in Schmidt et al., 1875 (uncertain > unassessed)
  » Species Cymbella delicatissima Hustedt, 1938 accepted as Encyonopsis delicatissima (Hustedt) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
    » Variety Cymbella delicatissima var. beagleana Patrick, 1970 (uncertain > unassessed)
  » Species Cymbella delicatula Kützing, 1849 accepted as Delicatophycus delicatulus (Kützing) M.J.Wynne, 2019 (uncertain > unassessed)
    » Forma Cymbella delicatula f. lata Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
    » Forma Cymbella delicatula f. obtusa Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
    » Variety Cymbella delicatula var. capitata Skvortzow, 1935 (uncertain > unassessed)
    » Variety Cymbella delicatula var. captitata Mayer, 1919 (uncertain > unassessed)
    » Variety Cymbella delicatula var. costei Lange-Bertalot & Moser, 1995 accepted as Delicatophycus costei (Lange-Bertalot & Moser) M.J.Wynne, 2019 (uncertain, new combination)
    » Variety Cymbella delicatula var. fasciata Voigt, 1943 (uncertain > unassessed)
    » Variety Cymbella delicatula var. intermedia D.McCall, 1933 (uncertain > unassessed)
    » Variety Cymbella delicatula var. sibirica Sheshukova in Poretzky & Sheshukova, 1953 (uncertain > unassessed)
    » Variety Cymbella delicatula var. sibirica Scheschukova in Zabelina et al., 1951 (uncertain > unassessed)
  » Species Cymbella deltaica Moruzi, 1968 (uncertain > unassessed)
  » Species Cymbella descripta (Hustedt) Krammer & Lange-Bertalot, 1985 accepted as Encyonopsis descripta (Hustedt) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella designata Krammer, 1985 (uncertain > unassessed)
  » Species Cymbella dianae (Ehrenberg) Ralfs accepted as Cocconema dianae Ehrenberg, 1854 (uncertain > unassessed)
  » Species Cymbella diavola Carter, 1971 (uncertain > unassessed)
  » Species Cymbella dicephala (Ehrenberg) Holmboe, 1901 accepted as Navicula dicephala f. dicephala Ehrenberg, 1837 (uncertain > unassessed)
  » Species Cymbella didelta (uncertain > unassessed)
  » Species Cymbella differta (Cleve-Euler) Krieger, 1943 accepted as Cymbella amphicephala var. differta Cleve-Euler, 1932 † (uncertain > unassessed)
    » Forma Cymbella differta f. undulata Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella difficilis Krasske, 1939 (uncertain > unassessed)
    » Forma Cymbella difficilis f. capitata Carter & Denny, 1992 (uncertain > unassessed)
  » Species Cymbella digitatoradiata Skvortzow, 1946 (uncertain > unassessed)
  » Species Cymbella diluviana (Krasske) Florin, 1971 accepted as Navicula diluviana var. diluviana Krasske, 1933 (uncertain > unassessed)
  » Species Cymbella diminuta (Grunow) Reichardt, 1994 accepted as Cymbella obtusa var. diminuta Grunow, 1882-1885 (uncertain > unassessed)
  » Species Cymbella directa Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella disparestriata Maillard ex Lange-Bertalot & Moser in Moser, Steindorf & Lange-Bertalot, 1995 (uncertain > unassessed)
  » Species Cymbella disposita Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella dissimilis M.Peragallo, 1909 (uncertain > unassessed)
  » Species Cymbella distinguenda Hustedt, 1942 accepted as Celebesia distinguenda (Hustedt) D. Kapustin, Kulikovskiy & Kociolek, 2017 (uncertain, Synonym)
  » Species Cymbella diversa Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella diversiforamina Schiller & Krammer, 2003 † (uncertain > unassessed)
  » Species Cymbella diversiformis Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella diversistigmata Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella dobsonensis K.Krammer, 2003 (uncertain > unassessed)
  » Species Cymbella dorsenotata Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella dorsenotata var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella dorsenotata var. nuda Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella dorsenotata var. seminuda Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella dorsenotata var. seminuda Cleve-Euler, 1926 (uncertain > unassessed)
    » Variety Cymbella dorsenotata var. subsalsa Cleve-Euler, 1922 (uncertain > unassessed)
    » Variety Cymbella dorsenotata var. subsalsa E. Manguin, 1960 (uncertain > unassessed)
  » Species Cymbella dorsirostrata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella dubia Østrup, 1920 (uncertain > unassessed)
  » Species Cymbella dubitabilis Lange-Bertalot & Moser in Moser, Steindorf & Lange-Bertalot, 1995 (uncertain > unassessed)
  » Species Cymbella dubitata Cholnoky, 1963 (uncertain > unassessed)
  » Species Cymbella dubravicensis Grunow, 1892 † (uncertain > unassessed)
    » Forma Cymbella dubravicensis f. madagascariensis E. Manguin, 1949 (uncertain > unassessed)
  » Species Cymbella dumbeana Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella duplopunctata Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella eburnea Zanon, 1941 (uncertain > unassessed)
  » Species Cymbella edelbergii Foged, 1959 (uncertain > unassessed)
  » Species Cymbella ehrenbergi (uncertain > unassessed)
    » Variety Cymbella ehrenbergi var. fossilis P. Schulz, 1926 (uncertain > unassessed)
  » Species Cymbella ehrenbergii sensu Schmidt in Schmidt et al., 1875 (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. inflata (Meister) Cleve-Euler, 1955 accepted as Cymbella ehrenbergii var. inflata Meister, 1912 (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. orientalis Thomas & Gonzalves, 1965 (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. ornata Mayer, 1913 (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. pumila (Meister) Cleve-Euler, 1955 accepted as Cymbella ehrenbergii var. pumila Meister, 1912 (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. ventricosa Cleve-Euler, 1932 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. angusta Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. crassa Tempère & Peragallo, 1909 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. crassa Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. delicatepunctata Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. hungarica Cleve-Euler in Cleve-Euler & Osvald, 1922 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. naviculiformis Mayer (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. rhomboidalis Gallik, 1927 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. semisymmetrica Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. stricta Cleve-Euler in Cleve-Euler & Osvald, 1922 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. typica Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella ehrenbergii Kützing, 1844 † (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Forma Cymbella ehrenbergii f. thermalis Thomas & Gonzalves, 1965 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. americana (A.Schmidt) Krasske, 1949 accepted as Cymbella americana A.W.F.Schmidt, 1875 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. apiculata Skvortzov, 1976 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. conica Héribaud, 1903 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. delecta (Schmidt in Schmidt et al.) Cleve, 1894 accepted as Cymbella delecta Schmidt in Schmidt et al., 1875 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. elongata Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. genuina Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. gutwinskii Wislouch, 1924 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. hankensis Skvortzow, 1929 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. hungarica Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. inflata Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. major Grunow in Van Heurck, 1880 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. minor Grunow, 1880 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. naviculoides Mayer, 1913 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. pumila Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. stauroneiformis Rabenhorst, 1864 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. stigmatica Prudent, 1907 (uncertain > unassessed)
    » Variety Cymbella ehrenbergii var. subcuspidata Limanowska (uncertain > unassessed)
  » Species Cymbella elegans Cramer in Rabenhorst, 1863 (uncertain > unassessed)
  » Species Cymbella elegans Jasnitsky, 1936 accepted as Cymbopleura elegans (Jasnitsky) Rodionova & Pomazkina, 2014 (uncertain > unassessed)
  » Species Cymbella elegans Sypniewsky, 1860 (uncertain > unassessed)
  » Species Cymbella elginensis Krammer, 1980 (uncertain > unassessed)
  » Species Cymbella elizabethana Krammer, 2002 † (uncertain > unassessed)
  » Species Cymbella elliptica Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella elliptica var. hibernica Skabichevskii, 1953 (uncertain > unassessed)
  » Species Cymbella elliptica (Agardh) Agardh, 1830 accepted as Frustulia elliptica C.Agardh, 1824 (uncertain > unassessed)
  » Species Cymbella elongata Poretzky ex Proschkina-Lavrenko, 1950 (uncertain > unassessed)
  » Species Cymbella encyonema Heiberg, 1863 (uncertain > unassessed)
  » Species Cymbella epithemoides Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella erdmannensis Foged, 1964 (uncertain > unassessed)
  » Species Cymbella erdobenyiana Pantocsek, 1889 (uncertain > unassessed)
  » Species Cymbella estonica Mölder, 1937 (uncertain > unassessed)
  » Species Cymbella eurycephala Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella excavata Cleve-Euler, 1939 (uncertain > unassessed)
  » Species Cymbella excisa Kützing, 1844 (uncertain > unassessed)
    » Forma Cymbella excisa f. major (Gutwinski) Gutwinski, 1893 accepted as Cymbella excisa var. major Gutwinski, 1890 (uncertain > unassessed)
    » Forma Cymbella excisa f. typica Gutwinski, 1893 (uncertain > unassessed)
    » Variety Cymbella excisa var. angusta Krammer, 2002 accepted as Cymbella affinis var. angusta (Krammer, 2002) W.Silva, 2015 (uncertain > unassessed)
    » Variety Cymbella excisa var. major Gutwinski, 1890 (uncertain > unassessed)
    » Variety Cymbella excisa var. procera Krammer, 2002 accepted as Cymbella affinis var. neoprocera W.Silva, 2015 (uncertain > unassessed)
    » Variety Cymbella excisa var. subcapitata Krammer, 2002 accepted as Cymbella affinis var. subcapitata (Krammer, 2002) W.Silva, 2015 (uncertain > unassessed)
  » Species Cymbella excisa Schmidt in Schmidt et al., 1881 (uncertain > unassessed)
  » Species Cymbella excisiformis Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella excisiformis var. nonprotracta Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella exigua Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella expecta VanLandingham, 1968 (uncertain > unassessed)
  » Species Cymbella explanata Pantocsek, 1913 (uncertain > unassessed)
  » Species Cymbella falaisensis (Grunow) Krammer & Lange-Bertalot, 1985 accepted as Navicula falaisensis f. falaisensis Grunow in Van Heurck, 1880 (uncertain > unassessed)
  » Species Cymbella farakulumensis Foged, 1959 (uncertain > unassessed)
  » Species Cymbella fennica Cleve-Euler, 1915 (uncertain > unassessed)
  » Species Cymbella filarszkyi Halász, 1937 (uncertain > unassessed)
  » Species Cymbella flexella Kützing, 1844 (uncertain > unassessed)
  » Species Cymbella florentina (Grunow) F.W. Mills, 1934 † accepted as Cymbella subaequalis var. florentina Grunow, 1880 † (uncertain > unassessed)
  » Species Cymbella fluminea R.Patrick & L.R.Freese, 1961 (uncertain > unassessed)
  » Species Cymbella fonticola Hustedt, 1938 accepted as Encyonopsis fonticola (Hustedt) Krammer, 1997 (uncertain > unassessed, Homotypic Synonym)
    » Forma Cymbella fonticola f. dumbeana Maillard, 1978 (uncertain > unassessed)
    » Forma Cymbella fonticola f. fossilis E. Manguin, 1949 (uncertain > unassessed)
  » Species Cymbella formosa Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella fornicata Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella foucaudi Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella frenguellii Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
  » Species Cymbella frieseana Grunow in Cleve, 1881 (uncertain > unassessed)
  » Species Cymbella frigida Cleve-Euler, 1939 (uncertain > unassessed)
  » Species Cymbella fuegensis Cleve-Euler, 1948 (uncertain > unassessed)
  » Species Cymbella fulva (Kützing) Brébisson & Godey, 1835 accepted as Frustulia fulva Kützing, 1833 (1834) (uncertain > unassessed)
  » Species Cymbella fusidium (Ehrenberg) Rabenhorst, 1853 accepted as Cocconema fusidium Ehrenberg, 1838 (uncertain > unassessed)
  » Species Cymbella gadjiana Maillard, 1978 accepted as Delicata gadjiana (Maillard) K.Krammer, 2003 (uncertain > unassessed)
    » Forma Cymbella gadjiana f. acuminata Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella gaeumannii Meister, 1934 (uncertain > unassessed)
  » Species Cymbella gallaudi Héribaud-Joseph, 1908 (uncertain > unassessed)
  » Species Cymbella gallica Héribaud-Joseph, 1908 (uncertain > unassessed)
    » Variety Cymbella gallica var. calcarea Rochoux d'Aubert in Héribaud et al., 1920 (uncertain > unassessed)
    » Variety Cymbella gallica var. crassa Rochoux d'Aubert in Héribaud et al., 1920 (uncertain > unassessed)
    » Variety Cymbella gallica var. curta Rochoux d'Aubert in Héribaud et al., 1920 (uncertain > unassessed)
    » Variety Cymbella gallica var. gracilis Héribaud, 1908 (uncertain > unassessed)
    » Variety Cymbella gallica var. minor Héribaud, 1908 (uncertain > unassessed)
  » Species Cymbella gastroides (Kützing) Brébisson & Godey, 1835 accepted as Frustulia gastroides Kützing, 1833 (uncertain > unassessed)
    » Variety Cymbella gastroides var. crassa Grunow, 1882 † accepted as Cymbella aspera var. crassa (Grunow) Cleve, 1894 † (uncertain > unassessed)
    » Variety Cymbella gastroides var. dubravicensis Grunow, 1882 † (uncertain > unassessed)
    » Variety Cymbella gastroides var. genuina Mayer, 1913 (uncertain > unassessed)
    » Variety Cymbella gastroides var. gigantea (Pantocsek) Frenguelli, 1923 † accepted as Cymbella gigantea Pantocsek, 1892 † (uncertain > unassessed)
    » Variety Cymbella gastroides var. helvetica (Kützing) Rabenhorst, 1864 accepted as Cymbella helvetica Kützing, 1844 (uncertain > unassessed)
    » Variety Cymbella gastroides var. kamtschatica (Grunow) De Toni, 1891 † accepted as Cymbella kamtschatica Grunow, 1875 † (uncertain > unassessed)
    » Variety Cymbella gastroides var. minor Van Heurck, 1880 (uncertain > unassessed)
    » Variety Cymbella gastroides var. neogena Grunow, 1882 (uncertain > unassessed)
    » Variety Cymbella gastroides var. prolongata Héribaud, 1908 (uncertain > unassessed)
    » Variety Cymbella gastroides var. truncata (Rabenhorst) Dippel, 1905 accepted as Cymbella truncata Rabenhorst, 1853 (uncertain > unassessed)
    » Variety Cymbella gastroides var. volvicense Héribaud in Héribaud et al., 1920 (uncertain > unassessed)
  » Species Cymbella gastroides (Kützing) Kützing, 1844 accepted as Frustulia gastroides Kützing, 1833 (uncertain > unassessed)
  » Species Cymbella gastroides Hanna & Grant, 1929 (uncertain > unassessed)
  » Species Cymbella gastroides Gutwinski, 1891 (uncertain > unassessed)
    » Forma Cymbella gastroides f. minor Rjabinin, 1888 (uncertain > unassessed)
    » Forma Cymbella gastroides f. ornata Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella gastroides var. bengalensis (Grunow) Woodhead & Tweed, 1958 (uncertain > unassessed)
    » Variety Cymbella gastroides var. beta Kützing, 1844 (uncertain > unassessed)
    » Variety Cymbella gastroides var. major Petkov, 1925 (uncertain > unassessed)
    » Variety Cymbella gastroides var. ventricosa Mayer, 1947 (uncertain > unassessed)
  » Species Cymbella geddiana Krammer & Lange-Bertalot, 2002 (uncertain > unassessed)
  » Species Cymbella gemeinhardtii Metzeltin & Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella geminata (Turpin) Brébisson & Godey (uncertain > unassessed)
  » Species Cymbella gerloffii Van Landingham, 1966 accepted as Delicata gerloffii (Van Landingham) K.Krammer, 2003 (uncertain > unassessed)
  » Species Cymbella gibba Bailey, 1861 (uncertain > unassessed)
  » Species Cymbella gibba I.A. Kisselev, 1927 (uncertain > unassessed)
  » Species Cymbella gibba Rabenhorst, 1871 (uncertain > unassessed)
  » Species Cymbella gibberula Fusey, 1948 (uncertain > unassessed)
  » Species Cymbella gibberula Hustedt, 1944 (uncertain > unassessed)
  » Species Cymbella gibbosa Pantocsek, 1902 (uncertain > unassessed)
  » Species Cymbella gibbosa (Brun) Meister, 1912 accepted as Cymbella cistula var. gibbosa Brun, 1895 (uncertain > unassessed)
  » Species Cymbella gigantea Pantocsek, 1892 † (uncertain > unassessed)
  » Species Cymbella giluwensis Vyverman, 1989 (uncertain > unassessed)
  » Species Cymbella girodi (Héribaud) Krenner, 1926 accepted as Encyonema girodi Héribaud, 1902 (uncertain > unassessed)
  » Species Cymbella glacialis Brun, 1894 (uncertain > unassessed)
  » Species Cymbella globosa Voigt, 1942 (uncertain > unassessed)
  » Species Cymbella gondwana H. Lange-Bertalot, K. Krammer & Rumrich in U. Rumrich, H. Lange-Bertalot & M. Rumrich, 2000 (uncertain > unassessed)
  » Species Cymbella graciliformis Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella gracilis (Ehrenberg) Kützing, 1844 accepted as Cocconema gracile Ehrenberg, 1841 (uncertain > unassessed)
    » Variety Cymbella gracilis var. aurangabadensis Sarode & Kamat, 1984
    » Forma Cymbella gracilis f. biconfusa VanLandingham, 1969 (uncertain > unassessed)
    » Forma Cymbella gracilis f. crassiostriata Skvortzov, 1976 (uncertain > unassessed)
    » Forma Cymbella gracilis f. curta (Meister) Cleve-Euler, 1955 accepted as Cymbella norvegica f. curta Meister, 1934 (1935) (uncertain > unassessed)
    » Forma Cymbella gracilis f. lunata (W.Smith) Østrup, 1910 accepted as Cymbella lunata W.Smith, 1855 (uncertain > unassessed)
    » Forma Cymbella gracilis f. minor Skvortzow, 1936 (uncertain > unassessed)
    » Forma Cymbella gracilis f. minor Manguin in Bourrelly & Manguin, 1949 (uncertain > unassessed)
    » Forma Cymbella gracilis f. minuta Plutenko, 1871 (uncertain > unassessed)
    » Forma Cymbella gracilis f. robustior Plutenko, 1871 (uncertain > unassessed)
    » Forma Cymbella gracilis f. sphagnicola Skvortzow, 1938 (uncertain > unassessed)
    » Forma Cymbella gracilis f. typica Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella gracilis var. arcuata Skvortzov, 1976 (uncertain > unassessed)
    » Variety Cymbella gracilis var. arcuata Voigt, 1943 (uncertain > unassessed)
    » Variety Cymbella gracilis var. capitata Krieger, 1930 (uncertain > unassessed)
    » Variety Cymbella gracilis var. heterostriata Mereschkowsky, 1906 (uncertain > unassessed)
    » Variety Cymbella gracilis var. kansouensis Skvortzow, 1935 accepted as Cymbella borealis var. kansouensis (Skvortzov, 2012) (uncertain > unassessed)
    » Variety Cymbella gracilis var. karelica Mölder, 1951 (uncertain > unassessed)
    » Variety Cymbella gracilis var. laevis (Nägeli) Rabenhorst, 1864 accepted as Cymbella laevis Nägeli, 1863 (uncertain > unassessed)
    » Variety Cymbella gracilis var. laevis H.L. Smith, 1874-1879 (uncertain > unassessed)
    » Variety Cymbella gracilis var. minuta (Hilse) Rabenhorst, 1864 accepted as Cymbella minuta Hilse, 1862 (uncertain > unassessed)
    » Variety Cymbella gracilis var. robustior Rabenhorst, 1864 (uncertain > unassessed)
    » Variety Cymbella gracilis var. rotundata Krieger, 1930 (uncertain > unassessed)
    » Variety Cymbella gracilis var. schmidtii Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella gracilis var. scotica (W.Smith) Rabenhorst, 1864 accepted as Cymbella scotica Schmidt in Schmidt et al., 1875 (uncertain > unassessed)
  » Species Cymbella gracilis (Rabenhorst) Cleve, 1894 accepted as Encyonema gracile Rabenhorst, 1853 (uncertain > unassessed)
    » Variety Cymbella gracilis var. girodii (Héribaud) Cleve-Euler, 1955 accepted as Encyonema girodi Héribaud, 1902 (uncertain > unassessed)
    » Variety Cymbella gracilis var. lunata (W.Smith) Cleve-Euler, 1955 accepted as Cymbella lunata W.Smith, 1855 (uncertain > unassessed)
    » Variety Cymbella gracilis var. sinica Skvortzov, 2012 (uncertain)
  » Species Cymbella graciliscesatii Yermoloff, 1918 (uncertain > unassessed)
  » Species Cymbella gracillima Hustedt, 1942 (uncertain > unassessed)
  » Species Cymbella graeca (Ehrenberg) M. Peragallo, 1897-1903 accepted as Cocconema graecum Ehrenberg, 1840 (uncertain > unassessed)
  » Species Cymbella grandi (Héribaud) F.W. Mills, 1934 accepted as Encyonema grandi Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella grata Pantocsek, 1903 (uncertain > unassessed)
  » Species Cymbella gregorii Ralfs in Pritchard, 1861 (uncertain > unassessed)
  » Species Cymbella gregoryi (uncertain > unassessed)
    » Variety Cymbella gregoryi var. tumida Gutwinski, 1893 (uncertain > unassessed)
  » Species Cymbella groenlandica Foged, 1953 (uncertain > unassessed)
    » Variety Cymbella groenlandica var. alaskaensis Foged, 1981 (uncertain > unassessed)
  » Species Cymbella grossestriata Otto Müller, 1905 (uncertain > unassessed)
    » Forma Cymbella grossestriata f. major Rich, 1937 (uncertain > unassessed)
    » Variety Cymbella grossestriata var. curta Rich, 1937 (uncertain > unassessed)
    » Variety Cymbella grossestriata var. javanica Hustedt, 1931 (uncertain > unassessed)
    » Variety Cymbella grossestriata var. obtusiuscula O.Müller, 1905 (uncertain > unassessed)
    » Variety Cymbella grossestriata var. recta Frenguelli, 1938 (uncertain > unassessed)
    » Variety Cymbella grossestriata var. tanganyikae (G.S. West) F.W. Mills, 1934 accepted as Cocconema grossestriata var. tanganyikae G.S. West, 1907 (uncertain > unassessed)
  » Species Cymbella grunowii Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella guettingeri Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella gutwinskii (Wislouch) Skvortzov & Meyer, 1928 (uncertain > unassessed)
    » Variety Cymbella gutwinskii var. intermedia Skvortzow & Meyer, 1928 (uncertain > unassessed)
  » Species Cymbella hagermanensis K.E. Lohman, 1957 (uncertain > unassessed)
  » Species Cymbella halophila Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella hantzschiana Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella hantzschiana var. borealis Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella hantzschiana var. strontiana Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella hariotii Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella haslundii Foged, 1959 (uncertain > unassessed)
  » Species Cymbella hastaeformis Skvortzov, 2012 (uncertain)
  » Species Cymbella hauckii Cleve-Euler, 1932 (uncertain > unassessed)
    » Forma Cymbella hauckii f. stigmata Rivera, 1979 (uncertain > unassessed)
  » Species Cymbella hauckii van Heurck, 1887 (uncertain > unassessed)
    » Variety Cymbella hauckii var. chilensis Rivera, 1974 (uncertain > unassessed)
    » Variety Cymbella hauckii var. fossilis Héribaud-Joseph, 1903 † (uncertain > unassessed)
    » Variety Cymbella hauckii var. minor Cleve-Euler, 1948 (uncertain > unassessed)
  » Species Cymbella hebetata Pantocsek, 1902 (uncertain > unassessed)
  » Species Cymbella hebridica (Grunow) Cleve, 1894 accepted as Encyonema hebridicum (Gregory) Grunow, 1891 (uncertain > unassessed)
    » Variety Cymbella hebridica var. apiculata Cleve-Euler, 1939 (uncertain > unassessed)
    » Variety Cymbella hebridica var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella hebridica var. jeniseyensis Skvortzow, 1971 (uncertain > unassessed)
  » Species Cymbella hedinii Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella heilprinensis Foged, 1955 (uncertain > unassessed)
  » Species Cymbella heimii Fusey, 1948 (uncertain > unassessed)
  » Species Cymbella helmckei Krammer, 1982 (uncertain > unassessed)
  » Species Cymbella helmendensis Foged, 1959 (uncertain > unassessed)
  » Species Cymbella helvetica Schmidt in Schmidt et al., 1881 (uncertain > unassessed)
  » Species Cymbella helvetica W. Smith, 1853 (uncertain > unassessed)
  » Species Cymbella helvetica Kützing, 1844 (uncertain > unassessed)
    » Variety Cymbella helvetica var. helvetica Kützing, 1844
    » Forma Cymbella helvetica f. angustior Gallik, 1926 (uncertain > unassessed)
    » Forma Cymbella helvetica f. cistulacea Gallik, 1926 (uncertain > unassessed)
    » Forma Cymbella helvetica f. excisa Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella helvetica f. major (Meister) Cleve-Euler, 1955 accepted as Cymbella helvetica var. major Meister, 1912 (uncertain > unassessed)
    » Forma Cymbella helvetica f. minor Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella helvetica f. ornata Mayer, 1931 (uncertain > unassessed)
    » Forma Cymbella helvetica f. silesiaca Rabenhorst, 1857 (uncertain > unassessed)
    » Forma Cymbella helvetica f. typica Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella helvetica f. typica Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella helvetica f. ventralis Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella helvetica f. ventricosa Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella helvetica var. abbreviata Grunow, 1882-1885 (uncertain > unassessed)
    » Variety Cymbella helvetica var. africana Fritsch & Rich, 1924 (uncertain > unassessed)
    » Variety Cymbella helvetica var. balatonis (Grunow) Cleve, 1894 accepted as Cymbella balatonis Grunow, 1875 (uncertain > unassessed)
    » Variety Cymbella helvetica var. beta W. Smith, 1856 (uncertain > unassessed)
    » Variety Cymbella helvetica var. compacta (Østrup) Hustedt, 1955 accepted as Cymbella compacta Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella helvetica var. curta Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella helvetica var. elongata Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella helvetica var. encyonemoides Gallik, 1927 (uncertain > unassessed)
    » Variety Cymbella helvetica var. excisa Prudent, 1909 (uncertain > unassessed)
    » Variety Cymbella helvetica var. fossilis Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella helvetica var. genuina Mayer, 1929 (uncertain > unassessed)
    » Variety Cymbella helvetica var. gracilis Meist., 1912 (uncertain > unassessed)
    » Variety Cymbella helvetica var. hungarica (Pantocsek) F.W. Mills, 1934 accepted as Cymbella cistula var. hungarica Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella helvetica var. incisa Prudent, 1906 (uncertain > unassessed)
    » Variety Cymbella helvetica var. intermedia Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella helvetica var. major Meister, 1912 (uncertain > unassessed)
    » Variety Cymbella helvetica var. maxima Prudent, 1907 (uncertain > unassessed)
    » Variety Cymbella helvetica var. obtusa Grunow in Van Heurck, 1880-1885 (uncertain > unassessed)
    » Variety Cymbella helvetica var. planiventris Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella helvetica var. punctata Hustedt, 1922 (uncertain > unassessed)
    » Variety Cymbella helvetica var. rariuspunctata Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella helvetica var. scotica (A.Schmidt) Frenguelli (uncertain > unassessed)
    » Variety Cymbella helvetica var. scotica Grunow in Van Heurck, 1880-1885 (uncertain > unassessed)
    » Variety Cymbella helvetica var. signata M. Peragallo in Héribaud, 1920 (uncertain > unassessed)
    » Variety Cymbella helvetica var. undulata Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella helvetica var. vaszaryi (Pantocsek) Cleve-Euler, 1955 accepted as Cymbella vaszaryi Pantocsek, 1902 (uncertain > unassessed)
  » Species Cymbella hercynica A.Schmidt, 1875 (uncertain > unassessed)
  » Species Cymbella heterogibba H. Kobayasi & S. Mayama in Mayama, S., Idei, M., Osada, K. & T. Nagumo, 2002 (uncertain > unassessed)
  » Species Cymbella heteropleura (Ehrenberg) Kützing, 1844 accepted as Pinnularia heteropleura Ehrenberg, 1840 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. capitata Krasske, 1949 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. hinganica Skovrtzov, 1976 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. major Tynni, 1982 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. minor E. Manguin, 1964 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. minor Brun, 1901 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. minor Cleve, 1891 (uncertain > unassessed)
    » Forma Cymbella heteropleura f. nipponica Skvortzow, 1936 (uncertain > unassessed)
    » Variety Cymbella heteropleura var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella heteropleura var. lanceolata A. Cleve, 1895 (uncertain > unassessed)
    » Variety Cymbella heteropleura var. marginata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella heteropleura var. minor Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella heteropleura var. minor Mayer, 1939 (uncertain > unassessed)
    » Variety Cymbella heteropleura var. subrostrata Cleve, 1894 † (uncertain > unassessed)
    » Variety Cymbella heteropleura var. symmetrica Boyer, 1927 † (uncertain > unassessed)
    » Variety Cymbella heteropleura var. typica Ross, 1947 (uncertain > unassessed)
  » Species Cymbella hevesensis Pantocsek, 1889 (uncertain > unassessed)
  » Species Cymbella hilliardii Manguin, 1961 (uncertain > unassessed)
  » Species Cymbella himalaspera I.Jüttner & B.Van de Vijver, 2010 (uncertain > unassessed)
  » Species Cymbella hoelii Foged, 1964 (uncertain > unassessed)
  » Species Cymbella hofmanniae Lange-Bertalot & Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella hohnii VanLandingham, 1966 (uncertain > unassessed)
  » Species Cymbella holmenii Foged, 1955 (uncertain > unassessed)
  » Species Cymbella hopkirkii Moore in Harvey, 1841 (uncertain > unassessed)
  » Species Cymbella hornii Foged, 1964 (uncertain > unassessed)
  » Species Cymbella hugonii Manguin ex Kociolek & Reviers, 1996 accepted as Encyonopsis hugonii (Manguin ex Kociolek & Reviers) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella hulensis Ehrlich, 1973 † (uncertain > unassessed)
    » Variety Cymbella hulensis var. curta Ehrlich, 1973 (uncertain > unassessed)
  » Species Cymbella hungarica (Grunow) Pantocsek, 1902 accepted as Cocconema hungaricum Grunow, 1875 (uncertain > unassessed)
    » Variety Cymbella hungarica var. crassior Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella hungarica var. grunowii Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella hungarica var. signata (Pantocsek) Cleve-Euler, 1932 accepted as Cymbella signata Pantocsek, 1902 (uncertain > unassessed)
  » Species Cymbella hurellii Fusey, 1948 (uncertain > unassessed)
  » Species Cymbella hustedtii Krasske, 1923 (uncertain > unassessed)
    » Forma Cymbella hustedtii f. lineolata Musafarov, 1952 (uncertain > unassessed)
    » Forma Cymbella hustedtii f. stigmata Compère, 1980 (uncertain > unassessed)
    » Variety Cymbella hustedtii var. compacta Krammer, 2002 † (uncertain > unassessed)
    » Variety Cymbella hustedtii var. crassipunctata Lange-Bertalot & Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella hustedtii var. rhombica Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella hustedtii var. tenuis Skvortzov, 2012 (uncertain)
  » Species Cymbella hyalina Agardh, 1830 (uncertain > unassessed)
  » Species Cymbella hyalina Cleve-Euler, 1915 (uncertain > unassessed)
  » Species Cymbella hybrida Grunow ex Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella hybrida var. capitata Fontell, 1917 (uncertain > unassessed)
    » Variety Cymbella hybrida var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella hybrida var. lanceolata Krammer, 1985 (uncertain > unassessed)
    » Variety Cymbella hybrida var. pamirica Petersen, 1930 (uncertain > unassessed)
    » Variety Cymbella hybrida var. punctata Fusey, 1966 (uncertain > unassessed)
    » Variety Cymbella hybrida var. sierra-leonensis Woodhead & Tweed, 1958 (uncertain > unassessed)
  » Species Cymbella hybridiformis Hustedt, 1945 (uncertain > unassessed)
  » Species Cymbella imitans Gutwinski, 1909 (uncertain > unassessed)
    » Variety Cymbella imitans var. striatior Kalbe, 1963 (uncertain > unassessed)
  » Species Cymbella inaequalis Ross, 1952 (uncertain > unassessed)
  » Species Cymbella inaequalis "W. Smith in Greville, 1855" according to Mills, 1934 (uncertain > unassessed)
  » Species Cymbella inca H. Lange-Bertalot, K. Krammer & Rumrich in Rumrich, H. Lange-Bertalot & M. Rumrich, 2000 (uncertain > unassessed)
  » Species Cymbella incerta Grunow, 1878 (uncertain > unassessed)
    » Forma Cymbella incerta f. curta Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella incerta f. robusta Tynni, 1978 (uncertain > unassessed)
    » Variety Cymbella incerta var. africana Cholnoky, 1957 (uncertain > unassessed)
    » Variety Cymbella incerta var. crassipunctata Krammer, 1985 (uncertain > unassessed)
    » Variety Cymbella incerta var. densestriata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella incerta var. interglacialis Miller & Falkenstrom, 1971 (uncertain > unassessed)
    » Variety Cymbella incerta var. linearis Fontell, 1917 (uncertain > unassessed)
    » Variety Cymbella incerta var. naviculacea (Grunow) Cleve, 1894 accepted as Cymbella naviculacea Grunow, 1881 (uncertain > unassessed)
    » Variety Cymbella incerta var. oblonga (Fontell) Cleve-Euler, 1932 accepted as Cymbella aequalis var. oblonga Fontell, 1917 (uncertain > unassessed)
    » Variety Cymbella incerta var. parallela Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella incerta var. septentrionalis (Østrup) Cleve-Euler, 1955 accepted as Cymbella septentrionalis Østrup, 1910 (uncertain > unassessed)
    » Variety Cymbella incerta var. subconstricta (Østrup) Cleve-Euler, 1934 accepted as Cymbella subconstricta Østrup, 1918 (1920) (uncertain > unassessed)
  » Species Cymbella incertastriata Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella incrassata (Kützing) Brébisson & Godey (uncertain > unassessed)
  » Species Cymbella incrassata Foged, 1955 (uncertain > unassessed)
  » Species Cymbella incurvata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella inducta Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella inelegans Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella inelegans var. baikalensis Skvortzow, 1937 (uncertain > unassessed)
  » Species Cymbella inflata (Kützing) Brébisson & Godey (uncertain > unassessed)
  » Species Cymbella inflata Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella inflexa Pantocsek, 1913 (uncertain > unassessed)
  » Species Cymbella ingstadii Foged, 1968 (uncertain > unassessed)
  » Species Cymbella integra (W.Smith) A.W.F.Schmidt, 1881 accepted as Pinnularia integra W.Smith, 1856 (uncertain > unassessed)
  » Species Cymbella intermedia Héribaud, 1908 accepted as Encyonema intermedium Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella ioica Carter & Denny, 1982 (uncertain > unassessed)
  » Species Cymbella islandica Østrup, 1920 (uncertain > unassessed)
  » Species Cymbella italica Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella janischii (Schmidt in Schmidt et al.) Cleve, 1894 accepted as Cocconema janischii Schmidt in Schmidt et al., 1881 † (uncertain > unassessed)
  » Species Cymbella japonica Reichelt, 1898 (uncertain > unassessed)
  » Species Cymbella jarrensis Meyer, 1938 (uncertain > unassessed)
  » Species Cymbella javanica Hustedt, 1938 (uncertain > unassessed)
    » Variety Cymbella javanica var. mengeae Cholnoky, 1954 (uncertain > unassessed)
  » Species Cymbella javorkae Krenner, 1926 (uncertain > unassessed)
  » Species Cymbella jimboi Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella jolmolungmensis C.C.Jao & Y.Y.Lee, 1974 (uncertain > unassessed)
  » Species Cymbella jonsonii Cleve-Euler, 1934 (uncertain > unassessed)
  » Species Cymbella jonssoni Østrup, 1918 (1920) (uncertain > unassessed)
  » Species Cymbella jordani Grunow ex Cleve, 1894 (uncertain > unassessed)
  » Species Cymbella junkensis Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella juriljii Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella kaingensis Vyverman, 1988 accepted as Encyonopsis kaingensis (Vyverman) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella kamtschatica Grunow, 1875 † (uncertain > unassessed)
  » Species Cymbella kappii (Cholnoky) Cholnoky, 1956 accepted as Cymbella turgidula var. kappii Cholnoky, 1953 (uncertain > unassessed)
  » Species Cymbella kavnensis Pantocsek, 1889 (uncertain > unassessed)
  » Species Cymbella kawamurae Skvortzow, 1936 (uncertain > unassessed)
  » Species Cymbella keilhaui Foged, 1964 (uncertain > unassessed)
  » Species Cymbella kemiana Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella kerguelensis Germain, 1937 accepted as Encyonopsis kerguelensis (Germain) Krammer, 2003 (uncertain > unassessed, Homotypic Synonym)
  » Species Cymbella kerkevarensis Cleve-Euler, 1955 (uncertain > unassessed)
  » Species Cymbella khokhensis Metzeltin, Lange-Bertalot & Li (uncertain > unassessed)
  » Species Cymbella kiamensis Meister, 1932 (uncertain > unassessed)
  » Species Cymbella knuthii Foged, 1955 (uncertain > unassessed)
  » Species Cymbella kochii Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella koeiei Foged, 1959 (uncertain > unassessed)
  » Species Cymbella koidzumiana Skvortzow, 1971 (uncertain > unassessed)
  » Species Cymbella kolbei Hustedt, 1949 (uncertain > unassessed)
    » Variety Cymbella kolbei var. angusta Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella kolbei Sheshukova in Poretzky & Sheshukova, 1953 (uncertain > unassessed)
  » Species Cymbella kolbei Scheschukova in Zabelina et al., 1951 (uncertain > unassessed)
  » Species Cymbella koreana Skvortzow, 1929 (uncertain > unassessed)
  » Species Cymbella krasskei Krammer in Krammer & Lange-Bertalot, 1985 (uncertain > unassessed)
  » Species Cymbella kriegeri Krasske, 1943 accepted as Encyonopsis kriegeri (Krasske) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella kutzingii auct. non (Grunow) Cleve (uncertain > unassessed)
  » Species Cymbella lacroixii Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella lacus-karluki Manguin ex Kociolek & Reviers, 1996 (uncertain > unassessed)
  » Species Cymbella lacuskarlukii E. Manguin, 1960 (uncertain > unassessed)
  » Species Cymbella lacustris (C.Agardh) Cleve, 1894 accepted as Schizonema lacustre C.Agardh, 1824 (uncertain > unassessed)
    » Forma Cymbella lacustris f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Forma Cymbella lacustris f. curta Mayer, 1929 (uncertain > unassessed)
    » Forma Cymbella lacustris f. gomphonemoides Mayer, 1929 (uncertain > unassessed)
    » Forma Cymbella lacustris f. inflata Mayer, 1929 (uncertain > unassessed)
    » Forma Cymbella lacustris f. typica Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella lacustris var. australis Manguin in Bourrelly & Manugin, 1954 (uncertain > unassessed)
    » Variety Cymbella lacustris var. gomphonemoides Mayer, 1929 (uncertain > unassessed)
    » Variety Cymbella lacustris var. nipponica Skvortzow & Noda, 1971 (uncertain > unassessed)
    » Variety Cymbella lacustris var. sphagnicola Fusey, 1950 (uncertain > unassessed)
    » Variety Cymbella lacustris var. subtropica Voigt, 1942 (uncertain > unassessed)
  » Species Cymbella laetevirens Harvey, 1841 (uncertain > unassessed)
  » Species Cymbella laevis Nägeli, 1863 (uncertain > unassessed)
    » Forma Cymbella laevis f. compacta E. Manguin, 1964 (uncertain > unassessed)
    » Variety Cymbella laevis var. excisa Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella laevis var. genuina Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella laevis var. lata Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella laevis var. rupicola (Grunow) van Heurck, 1896 accepted as Cymbella rupicola Grunow, 1881 (uncertain > unassessed)
  » Species Cymbella lanceolata (C.Agardh) C.Agardh, 1830 accepted as Frustulia lanceolata C.Agardh, 1827 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. inflata Pantocsek, 1902 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. inflata Cleve-Euler, 1915 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. maxima A. Berg, 1945 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. maxima Tynni, 1994 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. minor Kufferath, 1914 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. minor Petkoff, 1932 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. minor Cleve-Euler, 1932 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. minuta Musafarov, 1952 (uncertain > unassessed)
    » Forma Cymbella lanceolata f. ornata Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. boeckii (Ehrenberg) Richter, 1914 accepted as Cocconema boeckii Ehrenberg, 1838 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. bottnica Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. cornuta (Ehrenberg) Grunow, 1882 † accepted as Cocconema cornutum Ehrenberg, 1843 † (uncertain > unassessed)
    » Variety Cymbella lanceolata var. densestriata Pantocsek, 1903 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. elongata (Skvortzow) Skvortzow, 1946 accepted as Cymbella aspera var. elongata Skvortzow, 1928 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. fossilis Pantocsek, 1889 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. genuina Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. genuina Mayer, 1947 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. gibbosa (Brun) Cleve-Euler, 1955 accepted as Cymbella cistula var. gibbosa Brun, 1895 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. grandipunctata Moiseeva, 1971 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. grossepunctata Skvortzov, 1976 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. hongkongensis Skvortzov, 1975 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. koreana Skvortzow, 1929 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. longissima Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. notata Wisl. & Poretzky (uncertain > unassessed)
    » Variety Cymbella lanceolata var. obtusa Skvortzov, 1975 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. pantocseki Skvortzow, 1929 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. robusta Pantocsek, 1892 (uncertain > unassessed)
    » Variety Cymbella lanceolata var. ventricosa Cleve-Euler, 1915 (uncertain > unassessed)
  » Species Cymbella lanceolatum (uncertain > unassessed)
  » Species Cymbella lancettula (Krammer) Krammer, 2002 accepted as Cymbella tumidula var. lancettula Krammer, 1985 (uncertain > unassessed)
  » Species Cymbella lancettuliformis Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella lange-bertalotii Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella langii McLaughlin & Andrews, 1990 † (uncertain > unassessed)
  » Species Cymbella lapponica Grunow ex Cleve, 1894 † (uncertain > unassessed)
  » Species Cymbella larvata Mayer, 1947 (uncertain > unassessed)
  » Species Cymbella lata Grunow ex Cleve, 1894 (uncertain > unassessed)
    » Variety Cymbella lata var. nagpurensis Sarode & Kamat, 1984
    » Forma Cymbella lata f. tumidoventralis E. Manguin, 1952 (uncertain > unassessed)
    » Variety Cymbella lata var. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
    » Variety Cymbella lata var. minor K.Mölder, 1937 (uncertain > unassessed)
    » Variety Cymbella lata var. nipponica Skvortzow, 1936 (uncertain > unassessed)
    » Variety Cymbella lata var. sinica Skvortzow, 1935 (uncertain > unassessed)
    » Variety Cymbella lata var. ventricosa Vladimirova, 1944 (uncertain > unassessed)
  » Species Cymbella latarea Maillard, 1978 accepted as Encyonopsis latarea (Maillard) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella latefasciata Agardh, 1830 (uncertain > unassessed)
  » Species Cymbella latens Krasske, 1937 (uncertain > unassessed)
  » Species Cymbella laterostrata Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella latestriata Pantocsek, 1892 † (uncertain > unassessed)
    » Variety Cymbella latestriata var. alaskana Patrick & Freese, 1961 (uncertain > unassessed)
  » Species Cymbella laubyi Héribaud, 1903 (uncertain > unassessed)
    » Variety Cymbella laubyi var. lanceolata Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella laurentii Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella laxa Skvortzow, 1946 (uncertain > unassessed)
  » Species Cymbella lecomtei Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella lembus Carter & Denny, 1992 (uncertain > unassessed)
  » Species Cymbella leptoceroides Hustedt, 1942 (uncertain > unassessed)
    » Variety Cymbella leptoceroides var. sublanceolata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella leptoceros (Ehrenberg) Kützing, 1844 accepted as Cocconema leptoceros Ehrenberg, 1843 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. indica Gandhi, 1960
    » Variety Cymbella leptoceros var. angusta Grunow, 1882
    » Variety Cymbella leptoceros var. leptoceros
    » Forma Cymbella leptoceros f. angusta (Grunow) Cleve-Euler, 1955 accepted as Cymbella leptoceras var. angusta Grunow, 1882 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. curta (Grunow in Van Heurck) Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. curta Tempère & Peragallo, 1908 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. elongata (Van Heurck) Cleve-Euler, 1955 accepted as Cymbella leptoceros var. elongata Van Heurck, 1885 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. elongata (Van Heurck) Østrup, 1910 accepted as Cymbella leptoceros var. elongata Van Heurck, 1885 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. genuina Mayer, 1919 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. major Cleve-Euler, 1955 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. minor Mayer, 1919 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. minuta Plutenko, 1871 (uncertain > unassessed)
    » Forma Cymbella leptoceros f. rostrata (Hustedt) Cleve-Euler, 1955 accepted as Cymbella leptoceros var. rostrata Hustedt, 1942 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. elongata Van Heurck, 1885 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. excisa (Petit) Cleve, 1894 accepted as Cymbella turgida var. excisa Petit, 1877 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. genuina Mayer, 1929 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. guadalupensis Manguin in Bourrelly & Manguin, 1952 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. major Prudent, 1905 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. obtusa Tempère & Peragallo, 1909 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. parva Palibin, 1947 (uncertain > unassessed)
    » Variety Cymbella leptoceros var. rostrata Hustedt, 1942 (uncertain > unassessed)
  » Species Cymbella lesothensis Schoeman, 1973 (uncertain > unassessed)
  » Species Cymbella levis (uncertain > unassessed)
  » Species Cymbella levyi Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella lindheimeri Grunow in Schmidt et al., 1875 (uncertain > unassessed)
  » Species Cymbella lindsayana Greville, 1865 (uncertain > unassessed)
  » Species Cymbella linearis Østrup, 1918 (uncertain > unassessed)
  » Species Cymbella lineata Harvey, 1841 (uncertain > unassessed)
  » Species Cymbella lineolata Patrick, 1944 (uncertain > unassessed)
  » Species Cymbella ljungneri Cleve-Euler, 1943 (uncertain > unassessed)
  » Species Cymbella loczyi Pantocsek, 1902 (uncertain > unassessed)
    » Variety Cymbella loczyi var. applanata Gallik, 1926 (uncertain > unassessed)
  » Species Cymbella longa Maillard, 1978 (uncertain > unassessed)
  » Species Cymbella lunata W.Smith, 1855 (uncertain > unassessed)
    » Variety Cymbella lunata var. alaskaensis Foged, 1981 (uncertain > unassessed)
  » Species Cymbella lunula (Ehrenberg) Rabenhorst, 1853 accepted as Cocconema lunula Ehrenberg, 1843 (uncertain > unassessed)
  » Species Cymbella maculata (Kützing) Brébisson & Godey, 1835 accepted as Frustulia maculata Kützing, 1833 (uncertain > unassessed)
    » Forma Cymbella maculata f. curta Van Heurck, 1880 (uncertain > unassessed)
  » Species Cymbella maculata sensu Neupauer, 1867 (uncertain > unassessed)
    » Forma Cymbella maculata f. maculata Kützing, 1844 (uncertain > unassessed)
    » Forma Cymbella maculata f. maculata W. Smith, 1853 (uncertain > unassessed)
    » Variety Cymbella maculata var. curta (Van Heurck) Tempère & Peragallo, 1909 accepted as Cymbella maculata f. curta Van Heurck, 1880 (uncertain > unassessed)
    » Variety Cymbella maculata var. maculata Van Heurck, 1880 (uncertain > unassessed)
    » Variety Cymbella maculata var. major Rabenhorst, 1864 (uncertain > unassessed)
  » Species Cymbella maculatum Kützing, 1833 (uncertain > unassessed)
  » Species Cymbella madagascariensis E. Manguin, 1941 (uncertain > unassessed)
  » Species Cymbella maggiana Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella magna Hustedt, 1955 (uncertain > unassessed)
  » Species Cymbella maillardii E. Manguin, 1962 accepted as Encyonopsis maillardii (Manguin) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella malayensis Hustedt, 1942 (uncertain > unassessed)
    » Forma Cymbella malayensis f. rostrata Hustedt, 1942 (uncertain > unassessed)
  » Species Cymbella maliana Maillard, 1977 (uncertain > unassessed)
  » Species Cymbella malinvaudii Héribaud, 1908 (uncertain > unassessed)
  » Species Cymbella manginii Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella mangrini Lauby, 1910 (uncertain > unassessed)
  » Species Cymbella marcinia Selva, 1981 (uncertain > unassessed)
  » Species Cymbella margaritifera E. Manguin, 1964 (uncertain > unassessed)
  » Species Cymbella marginata Østrup, 1918 (1920) (uncertain > unassessed)
  » Species Cymbella marginata Harvey, 1841 (uncertain > unassessed)
  » Species Cymbella marina Pantocsek, 1892 (uncertain > unassessed)
  » Species Cymbella marina Castracane, 1886 (uncertain > unassessed)
  » Species Cymbella marnieri E. Manguin, 1964 accepted as Encyonopsis marnieri (Manguin) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella martyi (Héribaud) F.W. Mills, 1934 accepted as Cymatopleura martyi Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella maxima Naegeli ex Kützing, 1849 (uncertain > unassessed)
  » Species Cymbella meisteri Skvortzov & Meyer, 1928 (uncertain > unassessed)
  » Species Cymbella melovskii Z.Levkov & S.Krstic, 2007 (uncertain > unassessed)
  » Species Cymbella menisculis Hohn, 1966 (uncertain > unassessed)
  » Species Cymbella meniscus Héribaud-Joseph, 1903 (uncertain > unassessed)
    » Variety Cymbella meniscus var. major Héribaud, 1903 (uncertain > unassessed)
  » Species Cymbella mesiana Cholnoky, 1955 (uncertain > unassessed)
  » Species Cymbella metzeltinii Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella mexicana (Ehrenberg) Cleve, 1894 † accepted as Cocconema mexicanum Ehrenberg, 1844 † (uncertain > unassessed)
  » Species Cymbella microcephala Grunow in Van Heurck, 1885 accepted as Encyonopsis microcephala (Grunow) Krammer, 1997 (uncertain > unassessed, Homotypic Synonym)
    » Forma Cymbella microcephala f. intermedia Woodhead & Tweed, 1960 (uncertain > unassessed)
    » Forma Cymbella microcephala f. major Grunow, 1880 (uncertain > unassessed)
    » Forma Cymbella microcephala f. minor Grunow in Van Heurck, 1880 (uncertain > unassessed)
    » Forma Cymbella microcephala f. robusta Hustedt, 1939 accepted as Encyonopsis robusta (Hustedt) L.Bahls, 2013 (uncertain > unassessed, Homotypic Synonym)
    » Forma Cymbella microcephala f. sublinearis Lund, 1946 (uncertain > unassessed)
    » Forma Cymbella microcephala f. subrostrata Manguin in Bourrelly & Manguin, 1952 (uncertain > unassessed)
    » Forma Cymbella microcephala f. undulata Fusey, 1950 (uncertain > unassessed)
    » Variety Cymbella microcephala var. crassa Reimer, 1975 (uncertain > unassessed)
    » Variety Cymbella microcephala var. major (Grunow) Cleve-Euler, 1932 accepted as Cymbella microcephala f. major Grunow, 1880 (uncertain > unassessed)
    » Variety Cymbella microcephala var. robusta Hustedt, 1939 (uncertain > unassessed)
    » Variety Cymbella microcephala var. rostellata Mayer, 1919 (uncertain > unassessed)
  » Species Cymbella microstoma Rabenhorst, 1853 (uncertain > unassessed)
  » Species Cymbella minima Stoermer, 1963 (uncertain > unassessed)
  » Species Cymbella minor (Agardh) Agardh, 1830 accepted as Frustulia minor Agardh, 1824 (uncertain > unassessed)
  » Species Cymbella minuscula Grunow in Schmidt, 1875 (uncertain > unassessed)
  » Species Cymbella minuta Hilse, 1862 (uncertain > unassessed)
    » Variety Cymbella minuta var. minuta Hilse ex Rabenhorst, 1862
    » Forma Cymbella minuta f. latens (Krasske) C.W.Reimer, 1975 accepted as Cymbella latens Krasske, 1937 (uncertain > unassessed)
    » Variety Cymbella minuta var. groenlandica (Foged) Foged, 1981 accepted as Cymbella ventricosa var. groenlandica Foged, 1953 (uncertain > unassessed)
    » Variety Cymbella minuta var. pseudogracilis (Cholnoky) Reimer, 1975 accepted as Cymbella turgida var. pseudogracilis Cholnoky, 1958 (uncertain > unassessed)
    » Variety Cymbella minuta var. semicircularis (Lagerstedt) Foged, 1981 accepted as Cymbella affinis var. semicircularis Lagerstedt, 1873 (uncertain > unassessed)
    » Variety Cymbella minuta var. silesiaca (Bleisch) Reimer, 1975 accepted as Cymbella silesiaca Bleisch, 1864 (uncertain > unassessed)
  » Species Cymbella minutissima Hustedt, 1911 (uncertain > unassessed)
  » Species Cymbella miocenica Héribaud, 1908 (uncertain > unassessed)
  » Species Cymbella mirabilis Hustedt, 1942 accepted as Alveocymba mirabilis (Hustedt) Kapustin, Kulikovskiy & Kociolek in Kapustin et al., 2020 (uncertain > unassessed, synonym)
  » Species Cymbella mirifica Krasske, 1949 (uncertain > unassessed)
  » Species Cymbella modica Z.Levkov & T.Nakov, 2007 (uncertain > unassessed)
  » Species Cymbella modicepunctata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella mongolica Østrup, 1908 (uncertain > unassessed)
    » Forma Cymbella mongolica f. curvata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella mongolica var. asiatica Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella mongolica var. capitata Cleve-Euler, 1955 (uncertain > unassessed)
    » Variety Cymbella mongolica var. minuta Foged, 1985 (uncertain > unassessed)
    » Variety Cymbella mongolica var. subalpina (Meister) Cleve-Euler, 1955 accepted as Cymbella subalpina Meister, 1912 (uncertain > unassessed)
  » Species Cymbella montana Fusey, 1948 (uncertain > unassessed)
  » Species Cymbella monticola Hustedt, 1949 (uncertain > unassessed)
  » Species Cymbella moragoensis Foged, 1966 (uncertain > unassessed)
  » Species Cymbella muelleri Hustedt, 1937 (uncertain > unassessed)
  » Species Cymbella mülleri Cholnoky, 1953 (uncertain > unassessed)
  » Species Cymbella muralis Skvortzow, 1937 (uncertain > unassessed)
  » Species Cymbella muscicola Schoeman, 1969 accepted as Encyonopsis muscicola (Schoeman) Krammer, 1997 (uncertain > unassessed, homotypic synonym)
  » Species Cymbella mutica Torka, 1937 (uncertain > unassessed)
  » Species Cymbella nana (Hantzsch) Gutwinski, 1903 accepted as Cocconema nanum Hantzsch, 1862
  » Species Cymbella navicula Skvortzov, 1937
  » Species Cymbella navicula (Ehrenberg) Ralfs in Pritchard, 1861 accepted as Cocconema navicula Ehrenberg, 1854
    » Variety Cymbella navicula var. amphioxys Grunow in Cleve & Möller, 1879 (uncertain > unassessed)
    » Variety Cymbella navicula var. producta Gallik, 1926 (uncertain > unassessed)
    » Variety Cymbella navicula var. unipunctata Gallik, 1926 (uncertain > unassessed)
  » Species Cymbella navicula Gallik, 1926
  » Species Cymbella navicula Schmidt in Schmidt et al., 1875
  » Species Cymbella naviculacea Grunow, 1881
    » Variety Cymbella naviculacea var. incerta Cleve, 1891 (uncertain > unassessed)
  » Species Cymbella naviculiformis (Auerswald ex Heiberg) Cleve, 1894
    » Forma Cymbella naviculiformis f. paulodilatata Halász, 1941 (uncertain > unassessed)
    » Variety Cymbella naviculiformis var. linearis Foged, 1981 (uncertain > unassessed)
    » Variety Cymbella naviculiformis var. minor Muzafarov, 1951 (uncertain > unassessed)
    » Variety Cymbella naviculiformis var. tumida Pantocsek & Greguss in Greguss, 1913 (uncertain > unassessed)
  » Species Cymbella naviculiformis Auerswald ex Heiberg, 1863
  » Species Cymbella naviculiformis Krenner, 1926
    » Forma Cymbella naviculiformis f. constricta Skvortzow, 1938 (uncertain > unassessed)
    » Forma Cymbella naviculiformis f. minor (Musafarov) VanLandingham, 1969 accepted as Cymbella naviculiformis var. minor Muzafarov, 1951 (uncertain > unassessed)
    » Variety Cymbella naviculiformis var. stauroptera Voigt, 1943 (uncertain > unassessed)
  » Species Cymbella naviculoides Hustedt, 1949 accepted as Encyonopsis naviculoides (Hustedt) Krammer, 1997 (Homotypic Synonym)
    » Variety Cymbella naviculoides var. paucistriata Fusey, 1964 (uncertain > unassessed)
  » Species Cymbella neglecta A.Mayer, 1933
  » Species Cymbella nekliaiana Maillard, 1978
  » Species Cymbella nekliaiensis Maillard ex Lange-Bertalot & Moser in Moser, Steindorf & Lange-Bertalot, 1995
  » Species Cymbella neocaledonica Manguin ex Kociolek & Reviers, 1996
  » Species Cymbella neocistula Krammer, 2002
    » Variety Cymbella neocistula var. islandica Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella neocistula var. lunata Krammer, 2002 (uncertain > unassessed)
    » Variety Cymbella neocistula var. nepalensis I. Jütner & B. Van de Vijver in Jüttner et al., 2010 (uncertain > unassessed)
  » Species Cymbella neogena (Grunow) Krammer, 2002 accepted as Cymbella gastroides var. neogena Grunow, 1882
  » Species Cymbella neoleptoceroides Z.Levkov, 2007
  » Species Cymbella neoleptoceros Krammer, 2002
    » Variety Cymbella neoleptoceros var. tenuistriata Krammer, 2002 (uncertain > unassessed)
  » Species Cymbella neoprocera VanLandingham, 1969
  » Species Cymbella neoprocera Hustedt in A. Schmidt, 1931
  » Species Cymbella neptuni Pantocsek, 1903
  » Species Cymbella nerei Pantocsek, 1902
  » Species Cymbella neupaueri Pantocsek, 1889
  » Species Cymbella nipponica Skvortzov, 1936
  » Species Cymbella niupanensis Foged, 1957 (1960)
  » Species Cymbella nodosa Manguin in Bourrelly, 1954
  » Species Cymbella nordenskioeldii Otto Müller, 1909
    » Forma Cymbella nordenskioeldii f. minor Cleve-Euler, 1948 (uncertain > unassessed)
    » Variety Cymbella nordenskioeldii var. peruviana Frenguelli, 1939 (uncertain > unassessed)
  » Species Cymbella norvegica Grunow, 1875
    » Forma Cymbella norvegica f. curta Meister, 1934 (1935) (uncertain > unassessed)
    » Forma Cymbella norvegica f. minor Fusey, 1950 (uncertain > unassessed)
    » Variety Cymbella norvegica var. lapponica (A.Cleve) A.Cleve, 1934 accepted as Cymbella aequalis var. lapponica Cleve-Euler, 1934 (uncertain > unassessed)
    » Variety Cymbella norvegica var. linearis E. Manguin, 1964 (uncertain > unassessed)
    » Variety Cymbella norvegica var. minor Rochoux d'Aubert in Héribaud et al., 1920 (uncertain > unassessed)
    » Variety Cymbella norvegica var. parva Zanon, 1938 (uncertain > unassessed)
  » Species Cymbella novazeelandiana Krammer, 2002
  » Species Cymbella novilunaris (Agardh) Agardh, 1830 accepted as Frustulia novilunaris C.Agardh, 1827
  » Species Cymbella nylstroomensis Cholnoky, 1958
  » Species Cymbella oahuensis Hustedt, 1942
  » Species Cymbella obscura Krasske, 1938
  » Species Cymbella obtusa Gregory, 1856
    » Forma Cymbella obtusa f. krasskei Foged, 1953 (uncertain > unassessed)
    » Variety Cymbella obtusa var. baltica Cleve-Euler, 1932 (uncertain > unassessed)
    » Variety Cymbella obtusa var. diminuta Grunow, 1882-1885 (uncertain > unassessed)
    » Variety Cymbella obtusa var. subaequalis (Grunow) Cleve-Euler, 1932 accepted as Cymbella subaequalis Grunow, 1880 (uncertain > unassessed)
  » Species Cymbella obtusa 'Grunow, 1856, p. 5; pl. 1, fig. 19' according to VLC p. 1218
  » Species Cymbella obtusa Pantocsek, 1892