• Biblarium castellum Ehrenberg, 1845 † (uncertain > unassessed)
• Biblarium chilense Ehrenberg, 1854 (uncertain > unassessed)
• Biblarium clypeus (Ehrenberg) Ehrenberg, 1854 accepted as Stylobiblium clypeus Ehrenberg, 1845 †
• Biblarium compressum Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium constrictum Ehrenberg, 1854 (uncertain > unassessed)
• Biblarium costellatus ‘Ehrenberg' Héribaud (uncertain > unassessed)
• Biblarium crux (Ehrenberg) Ehrenberg, 1854 accepted as Navicula crux Ehrenberg, 1838
• Biblarium divisum (Ehrenberg) Wolle, 1854 accepted as Stylobiblium divisum Ehrenberg, 1845 †
• Biblarium elegans Ehrenberg, 1854 (uncertain > unassessed)
• Biblarium ellipticum Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium emarginatum Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium excentricum (Ehrenberg) Wolle, 1890 accepted as Stylobiblium excentricum Ehrenberg, 1845 †
• Biblarium follis (Ehrenberg) Ehrenberg, 1843 † accepted as Navicula follis Ehrenberg, 1838 †
• Biblarium gibbum Ehrenberg, 1844 (uncertain > unassessed)
• Biblarium glans Ehrenberg, 1845 accepted as Navicula glans Ehrenberg, 1838
• Biblarium lamina Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium lancea Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium leptostauron Ehrenberg, 1854 (uncertain > unassessed)
• Biblarium lineare Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium rhombus Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium speciosum Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium stella Ehrenberg, 1845 (uncertain > unassessed)
• Biblarium strumosum Ehrenberg, 1854 (uncertain > unassessed)
• Charcotia actinochilus (Ehrenberg) Hustedt, 1958 accepted as Coscinodiscus actinochilus Ehrenberg, 1844
• Charcotia apollinis (Ehrenberg) M. Peragallo, 1921 accepted as Coscinodiscus apollinis var. apollinis Ehrenberg, 1844
• Charcotia apollinis (Ehrenberg) Mills, 1933 accepted as Coscinodiscus apollinis var. apollinis Ehrenberg, 1844
• Charcotia australis (Karsten) M. Peragallo, 1921 accepted as Coscinodiscus australis Karsten, 1905 accepted as Charcotiella australis (G.Karst) S.Blanco & C.E.Wetzel, 2016
• Charcotia bifrons (Castracane) M. Peragallo, 1921 accepted as Coscinodiscus bifrons Castracane, 1886 accepted as Charcotiella bifrons (Castrac.) S.Blanco & C.E.Wetzel, 2016
• Charcotia castracanei (Karsten) M. Peragallo, 1921 accepted as Coscinodiscus castracanei Karsten, 1905 accepted as Charcotiella castracanei (G.Karst.) S.Blanco & C.E.Wetzel, 2016
• Charcotia chromoradiatus (Karsten) M. Peragallo, 1921 accepted as Coscinodiscus chromoradiatus Karsten, 1905 accepted as Charcotiella chromoradiata (G.Karst.) S.Blanco & C.E.Wetzel, 2016
• Charcotia decrescens M. Peragallo, 1921 accepted as Charcotiella decrescens (Perag.) S.Blanco & C.E.Wetzel, 2016
• Charcotia dispersus M. Peragallo, 1921 accepted as Charcotiella dispersa (Perag.) S.Blanco & C.E.Wetzel, 2016
• Charcotia irregularis accepted as Charcotiella irregularis (Perag.) S.Blanco & C.E.Wetzel, 2016
• Charcotia irregularis var. irregularis M. Peragallo, 1921 (uncertain > unassessed)
• Charcotia irregularis var. partita M. Peragallo, 1921 (uncertain > unassessed)
• Charcotia janus (uncertain > unassessed)
• Charcotia janus var. janus (Castracane) M. Peragallo, 1921 accepted as Coscinodiscus janus Castracane, 1886 accepted as Charcotiella janus (Castrac.) S.Blanco & C.E.Wetzel, 2016
• Charcotia janus var. planus (Karsten) M. Peragallo, 1921 accepted as Coscinodiscus planus Karsten, 1905
• Charcotia micropunctatus M. Peragallo, 1921 accepted as Charcotiella micropunctata (Perag.) S.Blanco & C.E.Wetzel, 2016
• Charcotia minor M. Peragallo, 1921 accepted as Charcotiella minor (Perag.) S.Blanco & C.E.Wetzel, 2016
• Charcotia ornatus (uncertain > unassessed)
• Charcotia ornatus var. excentrica M. Peragallo, 1921 (uncertain > unassessed)
• Charcotia ornatus var. ornatus (Van Heurck) M. Peragallo, 1921 accepted as Actinocyclus polygonus var. ornatus Van Heurck, 1909 accepted as Charcotiella ornata (Van Heurck) S.Blanco & C.E.Wetzel, 2016
• Charcotia polygonus M. Peragallo, 1921 (uncertain > unassessed)
• Charcotia valdiviae M. Peragallo, 1921 accepted as Charcotiella valdiviae (Perag.) S.Blanco & C.E.Wetzel, 2016
• Colletonema americanum (Ehrenberg) Kützing, 1849 accepted as Naunema americanum Ehrenberg, 1845
• Colletonema amphioxys (Ehrenberg) Kützing, 1849 accepted as Naunema amphioxys Ehrenberg, 1843
• Colletonema bullosum Fiorini-Mazzanti, 1861 (uncertain > unassessed)
• Colletonema dubium Grunow, 1860 (uncertain > unassessed)
• Colletonema exile (Kützing) Grunow, 1860 (uncertain > unassessed)
• Colletonema eximium (Thwaites) Kützing, 1849 accepted as Schizonema eximium Thwaites, 1848
• Colletonema eximium Thwaites ex W.Smith, 1856 (uncertain > unassessed)
• Colletonema hibernicum O'Meara, 1876 (uncertain > unassessed)
• Colletonema lacustre (Agardh) Kützing, 1849 accepted as Schizonema lacustre C.Agardh, 1824
• Colletonema lacustre var. stauroptera Heiden, 1900 (uncertain > unassessed)
• Colletonema neglectum (Thwaites) W.Smith, 1856 accepted as Schizonema neglectum Thwaites, 1848
• Colletonema subcohaerens Thwaites, 1848 accepted as Schizonema subcohaerens Thwaites, 1848
• Colletonema subflexile Gregory, 1857 (uncertain > unassessed)
• Colletonema subflexilis Grunow (uncertain > unassessed)
• Colletonema sullivantii H.L. Smith, 1860 (uncertain > unassessed)
• Colletonema thwaitesii W.Smith ex Grunow (uncertain > unassessed)
• Colletonema viridulum Brébisson ex Kützing, 1849 (uncertain > unassessed)
• Colletonema vulgare (Thwaites) W.Smith, 1856 accepted as Schizonema vulgare var. vulgare Thwaites, 1848
• Coscinodiscopsis commutata (Grunow) E.A.Sar & I.Sunesen, 2008
• Coscinodiscopsis jonesiana (Greville) E.A.Sar & I.Sunesen, 2008
• Cresswellia annulata Greville, 1865 (uncertain > unassessed)
• Cresswellia barbadensis Greville, 1865 accepted as Eupyxidicula barbadensis (Grev.) S.Blanco & C.E.Wetzel, 2016
• Cresswellia coronata (uncertain > unassessed)
• Cresswellia cylindracea Greville, 1865 (uncertain > unassessed)
• Cresswellia diadema (uncertain > unassessed)
• Cresswellia ferox Greville, 1859 accepted as Eupyxidicula ferox (Grev.) S.Blanco & C.E.Wetzel, 2016
• Cresswellia minuta Greville, 1865 (uncertain > unassessed)
• Cresswellia palmeriana Greville, 1865 accepted as Eupyxidicula palmeriana (Grev.) S.Blanco & C.E.Wetzel, 2016
• Cresswellia rudis Greville, 1866 (uncertain > unassessed)
• Cresswellia sphaerica Greville, 1865 (uncertain > unassessed)
• Cresswellia superba Greville, 1861
• Cresswellia turgida Greville, 1859 (uncertain > unassessed)
• Cresswellia turris Greville in Gregory, 1857 accepted as Eupyxidicula turris (Grev. & Arn.) S.Blanco & C.E.Wetzel, 2016
• Cresswellia valida Grunow ex Pelletan, 1889 (uncertain > unassessed)
• Cystopleura alpestris Brebisson in Brebisson & Godey, 1838 (uncertain > unassessed)
• Cystopleura angulosa (Perty) Kuntze, 1891 accepted as Epithemia angulata Perty, 1848
• Cystopleura argentina (Brun in Brun & Tempère) De Toni, 1892 accepted as Epithemia argentina Brun in Brun & Tempère, 1889
• Cystopleura argus (Ehrenberg) Kuntze, 1891 accepted as Eunotia argus Ehrenberg, 1843
• Cystopleura argus var. alpestris (W.Smith) De Toni, 1892 accepted as Epithemia alpestris W.Smith, 1853
• Cystopleura argus var. alpestris Dalla Torre & Sarnthein, 1901 (uncertain > unassessed)
• Cystopleura argus var. genuina Gutwinski, 1895 accepted as Epithemia argus var. genuina Grunow, 1862
• Cystopleura argus var. goeppertiana (Hilse) De Toni, 1892 accepted as Epithemia goeppertiana Hilse, 1861
• Cystopleura argus var. intermedia (Hilse in Rabenhorst) Symoens, 1960 accepted as Epithemia intermedia Hilse, 1860
• Cystopleura argus var. longicornis (Ehrenberg) De Toni, 1892 accepted as Eunotia longicornis Ehrenberg, 1849
• Cystopleura australis (Rabenhorst) Kuntze, 1891 accepted as Epithemia australis Rabenhorst, 1864
• Cystopleura baltica (Schumann) Kuntze, 1891 accepted as Epithemia baltica Schumann, 1862
• Cystopleura beatorum (Ehrenberg) Kuntze, 1891 accepted as Eunotia beatorum Ehrenberg, 1854
• Cystopleura biharensis (Pantocsek) De Toni, 1892 accepted as Epithemia biharensis Pantocsek, 1886
• Cystopleura capitata (Schumann) Kuntze, 1891 accepted as Epithemia capitata Schumann, 1862
• Cystopleura ciliata (Meneghini) De Toni, 1892 accepted as Epithemia ciliata (Corda) Meneghini, 1845 (1853) accepted as Navicula ciliata Corda, 1835
• Cystopleura cingulata (Ehrenberg) Kuntze, 1891 accepted as Eunotia cingulata Ehrenberg
• Cystopleura cistula (Ehrenberg) Kuntze, 1891 accepted as Eunotia cistula Ehrenberg, 1854
• Cystopleura cistula var. lunaris (Grunow in Pantocsek) De Toni, 1892 accepted as Epithemia cistula var. lunaris Grunow in Pantocsek, 1892
• Cystopleura clavata (Dickie) De Toni, 1892 accepted as Epithemia clavata Dickie, 1880
• Cystopleura cocconema (Ehrenberg) Kuntze, 1891 accepted as Eunotia cocconema Ehrenberg, 1854