Achnanthidium F.T. Kützing, 1844 (original description)
Achnanthidium delicatulum f. delicatulum Kützing, 1844 (original description)
Actinoptychus octonarius (Ehrenberg) Kützing, 1844 accepted as Actinocyclus octonarius var. octonarius Ehrenberg, 1837 (new combination reference)
Amphipleura F.T. Kützing, 1844 (original description)
Amphora C.G. Ehrenberg ex F.T. Kützing, 1844 (original description)
Amphora coffeaeformis (C.Agardh) Kützing, 1844 accepted as Halamphora coffeiformis (C.Agardh) Levkov, 2009 (new combination reference)
Campylodiscus C.G. Ehrenberg ex F.T. Kützing, 1844 (original description)
Coscinodiscus cinctus Kützing, 1844 (original description)
Coscinodiscus minutus Kützing, 1844 (original description)
Cyclotella minutula Kützing, 1844 † (original description)
Cymbella cuspidata Kützing, 1844 † (original description)
Cymbella ehrenbergii Kützing, 1844 † (original description)
Diatoma mesodon (Ehrenberg) Kützing, 1844 (original description)
Diploneis elliptica (Kützing) Cleve, 1894 (original description)
Epithemia F.T. Kützing, 1844 (original description)
Epithemia musculus Kützing, 1844 (original description)
Epithemia turgida (Ehrenberg) Kützing, 1844 accepted as Navicula turgida Ehrenberg, 1830 (new combination reference)
Epithemia zebra (Ehrenberg) Kützing, 1844 accepted as Navicula zebra Ehrenberg, 1833 (new combination reference)
Fragilaria rumpens (Kützing) G.W.F.Carlson, 1913 (original description)
Gomphonema curvatum var. marinum Kützing, 1844 (original description)
Navicula elliptica f. elliptica Kützing, 1844 (original description)
Navicula interrupta var. interrupta Kützing, 1844 (original description)
Navicula limosa f. limosa Kützing, 1844 (original description)
Odontella obtusa Kützing, 1844 (original description)
Podosphenia hyalina var. hyalina Kützing, 1844 (original description)
Rhabdonema F.T. Kützing, 1844 (original description)
Synedra acus f. acus Kützing, 1844 (original description)
Synedra radians var. radians Kützing, 1844 (original description)
Tabellaria C.G. Ehrenberg ex F.T. Kützing, 1844 (original description)
Tabularia (F.T. Kutzing) D.M. Williams & F.E. Round, 1986 (original description)
Ulnaria (Kützing) P. Compère, 2001 (original description)