Allonitzschia munifica A.Mann, 1925 (uncertain > unassessed )
Alveus marinus (Grunow) Kaczmarska & Fryxell, 1996 accepted as Nitzschia marina Grunow, 1880
Archibaldia capensis (Giffen) Witkowski & Kociolek, 2011 accepted as Gomphonitzschia capensis Giffen, 1984
Bacillaria acerosa Schrank, 1823 (uncertain > unassessed )
Bacillaria acicularis Bukhalova & Shirokova, 1938 (uncertain > unassessed )
Bacillaria acus Schrank, 1823 (uncertain > unassessed )
Bacillaria adriatica Lobarzewski, 1840 (uncertain > unassessed )
Bacillaria amphibia (Grunow) Elmore, 1895 accepted as Nitzschia amphibia f. amphibia Grunow, 1862
Bacillaria amphibia var. frauenfeldii (Grunow) Elmore in Barbour, 1895 accepted as Bacillaria frauenfeldii Grunow, 1862
Bacillaria australis Ehrenberg, 1854 (uncertain > unassessed )
Bacillaria bipunctata Ehrenberg in Hemprich & Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria bipunctata Schrank, 1823 (uncertain > unassessed )
Bacillaria cipollae Zanon, 1933 (uncertain > unassessed )
Bacillaria cistula Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria cleopatrae F.G.Hemprich & Ehrenberg (uncertain > unassessed )
Bacillaria communis Bory, 1822 (uncertain > unassessed )
Bacillaria conjugata P.J.F.Turpin (uncertain > unassessed )
Bacillaria crassa Bory, 1824 ? (uncertain > unassessed )
Bacillaria cuneata (Kützing) Ehrenberg, 1838 accepted as Diatoma tenue var. cuneatum Kützing, 1833 (1834)
Bacillaria cursoria Barkas, 1865 (uncertain > unassessed )
Bacillaria cursoria Donkin, 1858 (uncertain > unassessed )
Bacillaria diophthalma Ehrenberg in Hemprich & Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria elongata Ehrenberg, 1838 (uncertain > unassessed )
Bacillaria eruca Schrank, 1823 (uncertain > unassessed )
Bacillaria flocculosa (Roth) Leiblein, 1827 (uncertain > unassessed )
Bacillaria frauenfeldii Grunow, 1862 (uncertain > unassessed )
Bacillaria fulva C.L.Nitzsch, 1817 (uncertain > unassessed )
Bacillaria fusca Krishtofovich, 1941 (uncertain > unassessed )
Bacillaria fusiformis Ehrenberg in Hemprich & Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria fusus Schrank, 1823 (uncertain > unassessed )
Bacillaria glauca Morren, 1835 (1836) (uncertain > unassessed )
Bacillaria hiemalis (Roth) Tomosvary, 1879 (uncertain > unassessed )
Bacillaria hungarica Ehrenberg, 1854 (uncertain > unassessed )
Bacillaria hystrix Bory, 1824 (uncertain > unassessed )
Bacillaria incrassata Eichwald, 1844 (uncertain > unassessed )
Bacillaria interrupta Ehrenberg in Hemprich & Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria intestinum Schrank, 1823 (uncertain > unassessed )
Bacillaria kuseliae A.M.Schmid & R.Jahn in Jahn & Schmid, 2007
Bacillaria kuseliae A.M.Schmid & R.Jahn, 2007 (uncertain > unassessed )
Bacillaria lagena Schrank, 1823 (uncertain > unassessed )
Bacillaria longa (Grunow) De Toni, 1892 accepted as Nitzschia longa var. longa Grunow in Cleve & Grunow, 1880
Bacillaria lunata (O. F. Müller) Schrank, 1823 accepted as Vibrio lunula O.F.Müller, 1786 accepted as Closterium lunula Ehrenberg & Hemprich ex Ralfs, 1848
Bacillaria lunula Schrank, 1823 (uncertain > unassessed )
Bacillaria lyngbyei Bory, 1824 (uncertain > unassessed )
Bacillaria macilenta (Gregory in Greville) Lefébure accepted as Nitzschia macilenta f. macilenta Gregory in Greville, 1859
Bacillaria major Ehrenberg, 1838 (uncertain > unassessed )
Bacillaria marina J.W. Bailey, 1842 (uncertain > unassessed )
Bacillaria meneghinii Lobarzewski, 1840 (uncertain > unassessed )
Bacillaria militaris Hobson, 1869 (uncertain > unassessed )
Bacillaria muelleri Turpin (uncertain > unassessed )
Bacillaria multipunctata Ehrenberg in Hemprich & Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria multistriata Ehrenberg in Hemprich & Ehrenberg, 1828 (uncertain > unassessed )
Bacillaria naegeli Ralfs in Pritchard, 1861 (uncertain > unassessed )
Bacillaria obtusa (Lyngbye) Tomosvary, 1879 (uncertain > unassessed )
Bacillaria obtusa (W.Smith) Elmore, 1895 accepted as Nitzschia obtusa f. obtusa W. Smith, 1853
Bacillaria palea Nitzsch, 1817 (uncertain > unassessed )
Bacillaria paradoxa J.F.Gmelin, 1791 accepted as Bacillaria paxillifera (O.F.Müller) T.Marsson, 1901
Bacillaria paradoxa var. minuta Borscow, 1877 (uncertain > unassessed )
Bacillaria paradoxa var. pacifica (Grunow in Cleve & Grunow) De Toni, 1892 accepted as Nitzschia paradoxa var. pacifica Grunow, 1880
Bacillaria paradoxa var. paradoxa Gmelin in Linnaeus, 1788 (uncertain > unassessed )
Bacillaria paradoxa var. paucistriata (Frenguelli) Luchini & Verona, 1972
Bacillaria paradoxa var. tropica (Grunow) Grunow, 1877 accepted as Bacillaria tropica Grunow, 1867
Bacillaria paradoxa var. tumidula (Grunow) De Toni, 1892 accepted as Nitzschia paradoxa var. tumidula Grunow, 1880
Bacillaria paxillifer (O.F.Müller) T.Marsson, 1901 accepted as Bacillaria paxillifera (O.F.Müller) T.Marsson, 1901
Bacillaria paxillifer var. tumidula (Grunow) Witkowski, Lange-Bertalot & Metzeltin, 2000
Bacillaria paxillifera (O.F.Müller) T.Marsson, 1901 (uncertain > unassessed )
Bacillaria paxillifera var. czarneckii Jahn & A.M.Schmid, 2007
Bacillaria paxillifera var. czarneckii R.Jahn & A.M.Schmid, 2007 (uncertain > unassessed )
Bacillaria paxillifera var. tumidula (Grunow) A. Witkowski, H. Lange-Bertalot & D. Metzeltin, 2000 accepted as Nitzschia paradoxa var. tumidula Grunow, 1880
Bacillaria paxillum Bory, 1831 (uncertain > unassessed )
Bacillaria pectinalis Ehrenberg, 1838 (uncertain > unassessed )
Bacillaria pectinalis Nitzsch, 1817 (uncertain > unassessed )
Bacillaria pectinalis var. elongata Ehrenberg, 1838 (uncertain > unassessed )
Bacillaria phoenicenteron Nitzsch, 1817 (uncertain > unassessed )
Bacillaria praelonga (Cleve) De Toni, 1892 accepted as Nitzschia praelonga var. praelonga Cleve in Cleve & Grunow, 1880
Bacillaria ptolemaei F.G.Hemprich & Ehrenberg (uncertain > unassessed )
Bacillaria seriata Ehrenberg, 1835 (uncertain > unassessed )
Bacillaria sigmoidea Nitzsch, 1817 (uncertain > unassessed )
Bacillaria silicula (uncertain > unassessed )
Bacillaria silicula var. genuina Musatova, 1931 (uncertain > unassessed )
Bacillaria silicula var. inflata Musatova, 1931 (uncertain > unassessed )
Bacillaria silicula var. major Musatova, 1931 (uncertain > unassessed )
Bacillaria silicula var. silicula Musatova, 1931 (uncertain > unassessed )
Bacillaria silicula var. truncata Musatova, 1931 (uncertain > unassessed )
Bacillaria sinuata (Thwaites) Elmore, 1895 accepted as Denticula sinuata Thwaites, 1856
Bacillaria socialis (Gregory) Ralfs, 1861
Bacillaria socialis var. australis (Grunow in Cleve & Grunow) De Toni, 1892 accepted as Nitzschia socialis var. australis Grunow in Cleve & Grunow, 1880
Bacillaria socialis var. baltica Grunow accepted as Nitzschia socialis var. baltica Grunow, 1880
Bacillaria socialis var. basaltica Héribaud (uncertain > unassessed )
Bacillaria socialis var. indica Castracane, 1886 (uncertain > unassessed )
Bacillaria socialis var. kariana (Grunow in Cleve & Grunow) De Toni, 1892 accepted as Nitzschia socialis var. kariana Grunow, 1880
Bacillaria socialis var. massiliensis (Grunow in Cleve & Grunow) De Toni, 1892 accepted as Nitzschia socialis var. massiliensis Grunow in Cleve & Grunow, 1880
Bacillaria socialis var. sancti-cataldi Zanon, 1933 (uncertain > unassessed )
Bacillaria socialis var. seyschellensis (Grunow in Cleve & Grunow) De Toni, 1892 accepted as Nitzschia socialis var. seyschellensis Grunow in Cleve & Grunow, 1880
Bacillaria socialis var. socialis (Gregory) Ralfs in Pritchard, 1861 accepted as Nitzschia socialis var. socialis Gregory, 1857
Bacillaria spectabilis (Ehrenberg) Elmore in Barbour, 1895 accepted as Synedra spectabilis Ehrenberg, 1841
Bacillaria subtilis (Kützing) Elmore, 1895 accepted as Synedra subtilis Kützing, 1844
Bacillaria tabellaris Ehrenberg, 1833 (uncertain > unassessed )
Bacillaria tabellaris Eichwald, 1844 (uncertain > unassessed )
Bacillaria taeniaeformis (J.E. Smith) Nitzsch, 1817 (uncertain > unassessed )