Achnanthes parvula Kützing, 1844 (original description)
Achnanthidium F.T. Kützing, 1844 (original description)
Achnanthidium delicatulum f. delicatulum Kützing, 1844 (original description)
Achnanthidium microcephalum Kützing, 1844 (original description)
Actinoptychus octonarius (Ehrenberg) Kützing, 1844 accepted as Actinocyclus octonarius var. octonarius Ehrenberg, 1837 (new combination reference)
Amphora C.G. Ehrenberg ex F.T. Kützing, 1844 (original description)
Amphora atomus Kützing, 1844 (original description)
Amphora coffeaeformis (C.Agardh) Kützing, 1844 accepted as Halamphora coffeiformis (C.Agardh) Levkov, 2009 (new combination reference)
Amphora veneta f. veneta Kützing, 1844 (original description)
Cymbella helvetica Kützing, 1844 (original description)
Cymbella ventricosa Kützing, 1844 (original description)
Denticula F.T. Kützing, 1844 (original description)
Denticula tenuis Kützing, 1844 (original description)
Diadesmis F.T. Kützing, 1844 (original description)
Diatoma ehrenbergii Kützing, 1844 (original description)
Diatoma mesodon (Ehrenberg) Kützing, 1844 (original description)
Encyonema prostratum (Berkeley) Kützing, 1844 accepted as Monema prostratum Berkeley, 1832 (new combination reference)
Epithemia F.T. Kützing, 1844 (original description)
Epithemia gibba (Ehrenberg) Kützing, 1844 accepted as Navicula gibba Ehrenberg, 1830 (new combination reference)
Epithemia porcellus Kützing, 1844 (original description)
Epithemia sorex Kützing, 1844 (original description)
Epithemia ventricosa Kützing, 1844 (original description)
Epithemia zebra (Ehrenberg) Kützing, 1844 accepted as Navicula zebra Ehrenberg, 1833 (new combination reference)
Exilaria pulchella Ralfs ex Kützing, 1844 (original description)
Gomphonema tenellum var. tenellum Kützing, 1844 (original description)
Himantidium minus Kützing, 1844 (original description)
Navicula acuta Kützing, 1844 (original description)
Navicula amphiceros f. amphiceros Kützing, 1844 (original description)
Navicula cryptocephala Kützing, 1844 (original description)
Navicula exilis Kützing, 1844 (original description)
Navicula exilis f. exilis Kützing, 1844 (original description)
Navicula mutica f. mutica Kützing, 1844 (original description)
Navicula phyllepta Kützing, 1844 (original description)
Navicula viridula (Kützing) Ehrenberg, 1836 (new combination reference)
Sphenella F.T. Kützing, 1844 (original description)
Sphenella parvula Kützing, 1844 accepted as Gomphonema parvulum (Kützing) Kützing, 1849 (original description)
Stauroneis ventricosa var. ventricosa Kützing, 1844 (original description)
Surirella angusta f. angusta Kützing, 1844 (original description)
Synedra acus f. acus Kützing, 1844 (original description)
Synedra amphicephala var. amphicephala Kützing, 1844 (original description)
Synedra debilis Kützing, 1844 (original description)
Synedra dissipata var. dissipata Kützing, 1844 (original description)
Synedra famelica var. famelica Kützing, 1844 (original description)
Synedra familiaris f. familiaris Kützing, 1844 (original description)
Synedra radians var. radians Kützing, 1844 (original description)
Synedra rumpens var. rumpens Kützing, 1844 (original description)
Tabellaria C.G. Ehrenberg ex F.T. Kützing, 1844 (original description)
Tabellaria ventricosa Kützing, 1844 (original description)
Tabularia (F.T. Kutzing) D.M. Williams & F.E. Round, 1986 (original description)
Ulnaria (Kützing) P. Compère, 2001 (original description)