Cocconeis dirupta var. minor A. Schmidt, 1874 (original description)
Cocconeis lyra var. lyra Schmidt et al., 1874 (original description)
Cocconeis pelta var. pelta Schmidt, 1874 (original description)
Cocconeis quarnerensis (Grunow) A.Schmidt, 1874 (original description)
Cocconeis quarnerensis f. quarnerensis (Grunow) Schmidt, 1874 accepted as Rhaphoneis quarnerensis Grunow, 1862 (new combination reference)
Cocconeis vexans Schmidt, 1874 (original description)
Coscinodiscus fasciculatus Schmidt, 1878 (original description)
Coscinodiscus marginatus Schmidt, 1874 (original description)
Coscinodiscus radiatus f. minor Schmidt, 1874 (original description)
Coscinodiscus radiolatus Schmidt, 1874 (original description)
Cyclotella bella Schmidt, 1874 (original description)
Navicula aemula var. aemula Grunow in Schmidt, 1874 (original description)
Navicula baileyana var. baileyana Grunow in Schmidt, 1874 (original description)
Navicula baltica Grunow in A. Schmidt, 1874 (original description)
Navicula blanda var. blanda Schmidt, 1874 (original description)
Navicula bomboides var. bomboides Schmidt, 1872 (original description)
Navicula caribaea Schmidt, 1874 (original description)
Navicula coffeiformis var. coffeiformis Schmidt, 1874 (original description)
Navicula coffeiformis var. densestriata Schmidt, 1874 (original description)
Navicula compressicauda Schmidt, 1874 (original description)
Navicula consimilis Schmidt, 1874 (original description)
Navicula contracta Grunow in A. Schmidt, 1890 (original description)
Navicula delata Schmidt, 1874 (original description)
Navicula distans (W.Smith) Ralfs, 1861 accepted as Pinnularia distans W.Smith, 1853 (original description)
Navicula donkinii A.Schmidt, 1874 (original description)
Navicula elongata Grunow in Schmidt, 1874 (original description)
Navicula exemta A. Schmidt, 1874 (original description)
Navicula fistula A.Schmidt, 1874 (original description)
Navicula fusca var. delicata A.Schmidt, 1874 (original description)
Navicula fusca var. excisa Schmidt, 1874 (original description)
Navicula gemina A. Schmidt, 1875 (original description)
Navicula lacustris Schmidt, 1874 (original description)
Navicula littoralis var. subtilis Schmidt, 1874 (original description)
Navicula lyra f. atlantica Schmidt, 1874 (original description)
Navicula lyra f. elliptica (Schmidt) Hustedt, 1964 accepted as Navicula lyra var. elliptica Schmidt, 1874 (original description)
Navicula maxima var. bicaneata (Grunow) Schmidt, 1874 (new combination reference)
Navicula mediterranea A.Schmidt, 1874 accepted as Navicula gemmata var. mediterranea Grunow, 1875 (original description)
Navicula notabilis var. expleta Schmidt, 1874 (original description)
Navicula ovulum Schmidt, 1874 (original description)
Navicula polystricta var. circumsecta Grunow in A. Schmidt, 1874 (original description)
Navicula praesecta Schmidt, 1874 (original description)
Navicula quadratarea A.Schmidt, 1874 accepted as Pinnularia quadratarea (A.Schmidt) Cleve, 1895 (original description)
Navicula quadratarea var. quadratarea Schmidt, 1874 (original description)
Navicula rostellaria Schmidt, 1874 (original description)
Navicula rostellatia (Gregory) Schmidt, 1874 accepted as Navicula rostellaria Schmidt, 1874 (new combination reference)
Navicula sejuncta var. sejuncta Schmidt, 1874 (original description)
Navicula subcincta f. subcincta Schmidt, 1874 (original description)
Navicula superimposita Schmidt, 1874 (original description)
Navicula vahliana Grunow in Schmidt, 1874 (original description)
Navicula versicolor Grunow, 1874 (original description)
Navicula wittiana Grunow in A. Schmidt, 1874 (original description)
Navicula zostereti sensu Schmidt, 1874 (original description)
Odontodiscus subtilis Grunow in Schmidt, 1874 (original description)
Podosira smithiana Grunow, 1874 (original description)
Pseudodiploneis A. Schmidt, 1874 (original description)
Pyxilla baltica var. baltica Grunow in Schmidt, 1874 (original description)
Synedra cymbelliformis A.Schmidt, 1874 (original description)