Diatomella hustedtii Manguin in Bourrelly & Manguin, 1954 (uncertain > unassessed )
Oestrupia zachariasi (Reichelt) Hustedt, 1950 accepted as Navicula zachariasi Reichelt, 1903
Pinnularia abaujensis (Pantocsek) R.Ross, 1947
Pinnularia acoricola Hustedt, 1934 (uncertain > unassessed )
Pinnularia acutobrebissonii Kulikovskiy, Lange-Bertalot & Metzeltin, 2010 (uncertain > unassessed )
Pinnularia antarctica Ehrenberg, 1854 (uncertain > unassessed )
Pinnularia apiculata Gregory, 1855 (uncertain > unassessed )
Pinnularia appendiculata (C.Agardh) Schaarschmidt, 1881 accepted as Frustulia appendiculata C.Agardh, 1827
Pinnularia austroshetlandica (Carlson) A.Cleve
Pinnularia biglobosa (Schumann) Mills
Pinnularia borealis Ehrenberg, 1843
Pinnularia borealis sensu Berg, 1945 (uncertain > unassessed )
Pinnularia brauniana (Grunow) Studnicka, 1888 (uncertain > unassessed )
Pinnularia braunii (Grunow) Cleve, 1895 accepted as Pinnularia brauniana (Grunow) Studnicka, 1888
Pinnularia brebissonii (Kützing) Rabenhorst, 1864 accepted as Pinnularia acutobrebissonii Kulikovskiy, Lange-Bertalot & Metzeltin, 2010
Pinnularia brevicostata Cleve, 1891
Pinnularia circumducta Manguin, 1954 (uncertain > unassessed )
Pinnularia criophila Castracane, 1886 (uncertain > unassessed )
Pinnularia crucicula Frenguelli, 1942
Pinnularia cymatopleura West & G.S.West accepted as Navicula cymatopleura West & G.S.West, 1911
Pinnularia directa W.Smith, 1853 accepted as Navicula directa (W.Smith) Ralfs, 1861 accepted as Pinnularia directa var. directa W. Smith, 1853
Pinnularia directa var. directa W. Smith, 1853 (uncertain > unassessed )
Pinnularia gibba (Ehrenberg) Ehrenberg, 1843
Pinnularia gibba Ehrenberg, 1843
Pinnularia gibba f. parva (Ehrenberg) Hustedt, 1930 accepted as Stauroptera parva Ehrenberg, 1843
Pinnularia globiceps W.Gregory, 1856
Pinnularia globiceps var. krockii (Grunow) Cleve, 1895
Pinnularia krasskei Hustedt, 1934
Pinnularia krockii (Grunow) Hustedt, 1942 accepted as Navicula krockii Grunow, 1882
Pinnularia krookii (Grunow) Cleve, 1891 (uncertain > unassessed )
Pinnularia lanceolata Heiden, 1928
Pinnularia lanceolata var. interrupta (Cleve-Euler) Hirano, 1959 (uncertain > unassessed )
Pinnularia lata (Brébisson) W.Smith, 1853
Pinnularia lundii Hustedt, 1954 (uncertain > unassessed )
Pinnularia maior (Kützing) Cleve
Pinnularia microstauron (Ehrenberg) Cleve, 1891
Pinnularia microstauron sensu Skvortzow, 1929 (uncertain > unassessed )
Pinnularia nodosa (Ehrenberg) W.Smith, 1856
Pinnularia obscura Krasske, 1932
Pinnularia oculus (E.V.Østrup) E.V.Østrup (uncertain > unassessed )
Pinnularia parva Ehrenberg
Pinnularia quadratarea (A.Schmidt) Cleve, 1895
Pinnularia quadratarea var. bicuneata H.Heiden (uncertain > unassessed )
Pinnularia quadratarea var. constricta (Østrup) Heiden, 1874 accepted as Navicula pinnularia f. constricta Østrup, 1895
Pinnularia quadratarea var. constricta Schulz (uncertain > unassessed )
Pinnularia quadratarea var. fluminensis (Grunow) Cleve, 1895 accepted as Navicula fluminensis var. fluminensis Grunow, 1860
Pinnularia radiosa W.Smith, 1853
Pinnularia rectangulata (Gregory) Cleve (uncertain > unassessed )
Pinnularia shackletoni (uncertain > unassessed )
Pinnularia shackletoni var. pellucida (W. & G. S. West) F.W. Mills, 1934 accepted as Navicula shackletonii var. pellucida W. & G.S. West, 1911
Pinnularia stomatophora (Grunow) Cleve, 1895
Pinnularia subcapitata W.Gregory, 1856
Pinnularia tenuis Gregory, 1854
Pinnularia tenuis var. tenuis Gregory, 1854 (uncertain > unassessed )
Pinnularia viridis (Nitzsch) Ehrenberg, 1843
Pinnularia viridis sensu W. Smith, 1853 (uncertain > unassessed )
Pinnularia viridis var. commutata (Grunow) Cleve, 1895 (uncertain > unassessed )