Amphora costata sensu Fricke, 1902 (original description)
Amphora gigantea f. minor (Cleve) Fricke, 1902 accepted as Amphora gigantea f. minor Cleve, 1895 (new combination reference)
Amphora obtusa var. typica (Cleve) Fricke, 1902 accepted as Amphora obtusa f. typica Cleve, 1895 (new combination reference)
Anomoeoneis biceps (Ehrenberg) Fricke, 1902 accepted as Navicula biceps var. biceps Ehrenberg, 1843 (new combination reference)
Asteromphalus stellaris (Tempère & Brun in Brun & Tempère) Fricke, 1902 accepted as Asteromphalus stellaris var. stellaris Tempère & Brun in Brun & Tempère, 1889 (new combination reference)
Caloneis intercedens (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula intercedens Schmidt in Schmidt et al., 1890 (new combination reference)
Caloneis marginolineata (Grove & Sturt) Fricke, 1902 accepted as Navicula marginolineata Grove & Sturt, 1887 (new combination reference)
Coscinodiscus concavus var. punctata Fricke, 1902 (original description)
Coscinodiscus intermedia (Grunow) Fricke, 1902 accepted as Coscinodiscus robustus var. intermedia Grunow, 1884 (new combination reference)
Dictyoneis marginata var. elongata (Cleve in Schmidt et al.) Fricke, 1902 (new combination reference)
Diploneis gemmatula var. fossilis (Pantocsek) Fricke, 1902 (new combination reference)
Diploneis gemmatula var. minor (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula grunowii f. minor Schmidt in Schmidt et al., 1881 (new combination reference)
Diploneis gemmatula var. pristiophora (Janisch in Schmidt et al.) Fricke, 1902 accepted as Navicula pristiophora Janisch in Schmidt et al., 1881 (new combination reference)
Diploneis prominula (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula prominula Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis sideralis (Brun in Schmidt et al.) Fricke, 1902 accepted as Navicula sideralis Brun in Schmidt et al., 1892 (new combination reference)
Gomphonema exiguum (Ostrup) Fricke, 1902 (new combination reference)
Melosira sulcata f. hexagona (Grunow in Schmidt et al.) Fricke, 1902 (new combination reference)
Melosira sulcata f. polygona (Grunow in Schmidt et al.) Fricke, 1902 (new combination reference)
Navicula acrosphaeria f. maxima (Cleve) Fricke, 1902 (new combination reference)
Navicula affinis f. maxima (Cleve) Fricke, 1902 (new combination reference)
Navicula affinis f. media (Cleve) Fricke, 1902 (new combination reference)
Navicula affinis f. minor (Cleve) Fricke, 1902 (new combination reference)
Navicula ambigua var. digitus (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Amphora digitus A.Schmidt, 1875 (new combination reference)
Navicula aspera var. contermina (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula contermina Schmidt in Schmidt et al., 1876 (new combination reference)
Navicula aspera var. genuina (Cleve) Fricke, 1902 accepted as Trachyneis aspera var. genuina Cleve, 1894 (new combination reference)
Navicula aspera var. neumeyeri (Janisch in Schmidt et al.) Fricke, 1902 (new combination reference)
Navicula aspera var. oblonga Fricke, 1902 (original description)
Navicula aspera var. pulchella (W.Smith) Cleve Frenguelli accepted as Stauroneis pulchella W.Smith, 1853 (new combination reference)
Navicula aspera var. residua (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula residua Schmidt in Schmidt et al., 1876 (new combination reference)
Navicula aspera var. schmidtiana (Grunow in Schmidt et al.) Fricke, 1902 accepted as Navicula schmidtiana Grunow in Schmidt et al., 1876 (new combination reference)
Navicula aspera var. vulgaris (Cleve) Fricke, 1902 accepted as Trachyneis aspera var. vulgaris Cleve, 1894 (new combination reference)
Navicula bomboides f. madagascarensis (Cleve) Fricke, 1902 accepted as Diploneis bomboides var. madagascarensis Cleve, 1894 (new combination reference)
Navicula bomboides var. moesta (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula moesta Schmidt in Schmidt et al., 1881 (new combination reference)
Navicula castracanei var. petitiana (Grunow in Cleve) Fricke, 1902 accepted as Navicula petitiana Grunow in Cleve, 1881 (new combination reference)
Navicula clepsydra var. scotia (Schmidt in Schmidt et al.) Fricke, 1902 (new combination reference)
Navicula contigua var. eudoxia (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula eudoxia var. eudoxia Schmidt in Schmidt et al., 1875 (new combination reference)
Navicula contigua var. eugenia (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula eugenia A.Schmidt, 1874 (new combination reference)
Navicula crabro var. navigans (Brun in Schmidt et al.) Fricke, 1902 accepted as Navicula navigans Brun in Schmidt et al., 1892 (new combination reference)
Navicula crabro var. o'mearii Fricke, 1902 (original description)
Navicula dalmatica var. vulpecula (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula vulpecula Schmidt in Schmidt et al., 1875 (new combination reference)
Navicula divergens var. schweinfurthii (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula schweinfurthi A.W.F.Schmidt, 1876 (new combination reference)
Navicula divergens var. sublinearis (Cleve) Fricke, 1902 accepted as Pinnularia divergens var. sublinearis Cleve, 1895 (new combination reference)
Navicula fusca var. pelagi (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula pelagi Schmidt in Schmidt et al., 1875 (new combination reference)
Navicula fusca var. subrectangularis (Cleve) Fricke, 1902 accepted as Diploneis fusca var. subrectangularis Cleve, 1894 (new combination reference)
Navicula galapagensis var. contracta (Grunow in Schmidt; Grunow in Schmidt et al.) Fricke, 1902 accepted as Navicula contracta Grunow in A. Schmidt, 1890 (new combination reference)
Navicula gemmata var. minor (Schmidt in Schmidt et al.) Fricke, 1902 (new combination reference)
Navicula gemmata var. typica (Cleve) Fricke, 1902 accepted as Diploneis gemmata var. typica Cleve, 1894 (new combination reference)
Navicula gemmatula var. beyrichiana (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula beyrichiana f. beyrichiana Schmidt in Schmidt et al., 1881 (new combination reference)
Navicula gemmatula var. grunowi Fricke, 1902 (original description)
Navicula gemmatula var. lacrimans (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula lacrimans var. lacrimans Schmidt in Schmidt et al., 1875 (new combination reference)
Navicula graeffii f. minor (Cleve) Fricke, 1902 (new combination reference)
Navicula hennedyi f. bacillifera (Pantocsek) Cleve, 1895 accepted as Navicula bacillifera Pantocsek, 1889 (new combination reference)
Navicula hennedyi var. minutula Fricke, 1902 (original description)
Navicula integra (Grunow ex Cleve) Fricke, 1902 accepted as Pinnularia integra Grunow ex Cleve, 1895 (new combination reference)
Navicula interrupta f. stauroneiformis (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula termes var. stauroneiformis A.W.F.Schmidt, 1876 (new combination reference)
Navicula interrupta var. clancula (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula clancula A.Schmidt, 1875 (new combination reference)
Navicula legumen var. florentina (Grunow in Cleve & Möller) Fricke, 1902 accepted as Navicula florentina Grunow, 1877 (new combination reference)
Navicula litoralis var. hospes (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula hospes Schmidt in Schmidt et al., 1875 (new combination reference)
Navicula major f. transversa (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula transversa A.Schmidt, 1876 (new combination reference)
Navicula mauleri var. borussica (Cleve) Fricke, 1902 accepted as Diploneis mauleri var. borussica (Cleve) Cleve (new combination reference)
Navicula maxima f. lanceolata (Cleve) Fricke, 1902 (new combination reference)
Navicula mesolepta var. angusta (Cleve) Fricke, 1902 accepted as Pinnularia mesolepta f. angusta (Cleve) Hustedt, 1930 (new combination reference)
Navicula mesolepta var. polyonca (Brébisson) Fricke, 1902 accepted as Navicula polyonca Brébisson, 1849 (new combination reference)
Navicula microtatos var. christianii (Gascoyne in Vorce) Fricke, 1902 accepted as Raphidodiscus christianii W.J.Gascoyne ex T.Christian, 1887 † (new combination reference)
Navicula musca var. mirabilis (Leuduger-Fortmorel) Fricke, 1902 accepted as Navicula mirabilis f. mirabilis Leuduger-Fortmorel, 1879 (new combination reference)
Navicula muscaeformis var. genuina (Cleve) Fricke, 1902 accepted as Diploneis muscaeformis var. genuina Cleve, 1894 (new combination reference)
Navicula muscaeformis var. placida (Schmidt in Schmidt et al.) Fricke, 1902 accepted as Navicula placida var. placida Schmidt in Schmidt et al., 1892 (new combination reference)
Navicula nitescens var. serratula (Grunow in Schmidt et al.) Fricke, 1902 accepted as Navicula serratula Grunow in Schmidt et al., 1875 (new combination reference)
Navicula notabilis f. genuina (Cleve) Fricke, 1902 (new combination reference)
Navicula o'mearii var. pusilla (Cleve in Schmidt et al.) Fricke, 1902 accepted as Diploneis o'mearii var. pusilla Cleve, 1892 (new combination reference)
Navicula paulensis (Grunow Ms. in Cleve) Fricke, 1902 accepted as Pinnularia paulensis Grunow ex Cleve, 1895 (new combination reference)
Navicula polygramma sensu Fricke, 1902 accepted as Stauroneis polygramma Ehrenberg, 1843 (original description)
Navicula robusta var. subelliptica (Cleve) Fricke, 1902 accepted as Caloneis robusta var. subelliptica Cleve, 1894 (new combination reference)
Navicula sphaerophora var. biceps (Ehrenberg) Fricke, 1902 accepted as Navicula biceps var. biceps Ehrenberg, 1843 (new combination reference)
Navicula viridis f. fallax (Cleve) Fricke, 1902 accepted as Pinnularia viridis f. fallax Cleve, 1895 (new combination reference)
Navicula viridis f. leptogongyla (Ehrenberg; Grunow in Schmidt et al.) Fricke, 1902 accepted as Navicula leptogongyla Ehrenberg, 1843 (new combination reference)
Navicula viridis var. intermedia (Cleve) Fricke, 1902 accepted as Pinnularia viridis var. intermedia Cleve, 1891 (new combination reference)
Navicula viridis var. rupestris (Hantzsch) Fricke, 1902 accepted as Pinnularia rupestris Hantzsch, 1861 (new combination reference)
Pinnularia termitina (Ehrenberg) R.M.Patrick, 1966 (new combination reference)
Triceratium trisulcum var. cuneata Fricke, 1902 (original description)