Achnanthes arcuata (Lyngb.) Kütz., 1833 (new combination reference)
Achnanthes brevipes Kützing, 1833 (original description)
Achnanthes brevipes var. fragilariaeformis Kützing, 1833 (original description)
Achnanthes brevipes var. marina Kützing, 1833 (original description)
Achnanthes brevipes var. salina Kützing, 1833 (original description)
Achnanthes exilis var. exilis Kützing, 1833 (original description)
Achnanthes intermedia Kützing, 1833 (original description)
Achnanthes minutissima var. minutissima Kützing, 1833 (original description)
Achnanthes subsessilis var. subsessilis Kützing, 1833 (original description)
Aristella F.T. Kützing, 1834 (original description)
Aristella minuta Kützing, 1833 (original description)
Biddulphia vesiculosa (Agardh) Kützing, 1833 accepted as Diatoma vesiculosum Agardh, 1824 (new combination reference)
Cyclotella operculata f. operculata (Agardh) Kützing, 1833 accepted as Frustulia operculata C.Agardh, 1827 accepted as Epithemia operculata (C.Agardh) Ruck & Nakov (new combination reference)
Diatoma fenestratum Kützing, 1833 (1834) (original description)
Diatoma moniliforme (Kützing) D.M.Williams, 2012 (original description)
Diatoma tenue var. cuneatum Kützing, 1833 (1834) (original description)
Encyonema Kütz., 1833 (original description)
Encyonema paradoxum Kützing, 1833 (original description)
Exilaria fasciculata Kützing, 1833 accepted as Diatoma fasciculata C.A.Agardh, 1812 accepted as Tabularia fasciculata (C.Agardh) D.M.Williams & Round, 1986 (original description)
Exilaria tabulata (Agardh) Kützing, 1833 accepted as Tabularia tabulata (C.Agardh) Snoeijs, 1992 (new combination reference)
Exilaria truncata Kützing, 1833 (original description)
Exilaria variegata (Agardh) Kützing, 1833 accepted as Diatoma variegatum Agardh, 1832 (new combination reference)
Frustulia acuminata Kützing, 1833 (original description)
Frustulia adnata Kützing, 1833 (original description)
Frustulia aequalis Kützing, 1833 (original description)
Frustulia anceps Kützing, 1833 (1834) (original description)
Frustulia attenuata Kützing, 1834 (original description)
Frustulia bidentata Kützing, 1833 (1834) (original description)
Frustulia coffeaeformis sensu Kutzing, 1833 (1834) (original description)
Frustulia conjugata (Turpin) Kützing, 1833 (1834) accepted as Navicula conjugata Turpin, 1828 (new combination reference)
Frustulia copulata Kützing, 1833 (original description)
Frustulia cuspidata Kutzing, 1833 (original description)
Frustulia cymbiformis Kützing, 1833 (original description)
Frustulia depressa Kützing, 1833 (original description)
Frustulia fulva Kützing, 1833 (1834) (original description)
Frustulia gastroides Kützing, 1833 (original description)
Frustulia geminata (Turpin) Kützing, 1833 (1834) accepted as Navicula geminata Turpin, 1828 (new combination reference)
Frustulia incrassata Kützing, 1833 (1834) (original description)
Frustulia inflata Kützing, 1833 (1834) (original description)
Frustulia latefasciata Kützing, 1833 (1834) (original description)
Frustulia lyngbyei Kützing, 1833 (1834) (original description)
Frustulia maculata Kützing, 1833 (original description)
Frustulia major Kützing, 1833 (original description)
Frustulia multifasciata Kützing, 1833 (1834) (original description)
Frustulia nitzschii Kützing, 1833 (1834) (original description)
Frustulia oblonga Kützing, 1833 † (original description)
Frustulia olivacea (Lyngbye) Kützing, 1833 (new combination reference)
Frustulia ovalis Kützing, 1833 (original description)
Frustulia palea (Nitzsch) Kützing, 1833 (1834) (new combination reference)
Frustulia paludosa (Agardh) Kützing, 1833 (1834) accepted as Styllaria paludosa Agardh, 1831 (new combination reference)
Frustulia parvula Kützing, 1833 (1834) (original description)
Frustulia pellucida Kützing, 1833 (original description)
Frustulia picta Kützing, 1833 (1834) (original description)
Frustulia punctata Kützing, 1833 (1834) (original description)
Frustulia quinquepunctata Kützing, 1833 (original description)
Frustulia scalprum Kützing, 1833 (1834) (original description)
Frustulia splendens Kützing, 1833 (original description)
Frustulia subtilis Kützing, 1833 (1834) (original description)
Frustulia subulator Kützing, 1833 (1834) (original description)
Frustulia tenuissima Kützing, 1833 (original description)
Frustulia vermicularis Kützing, 1833 (original description)
Frustulia viridis (Nitzsch) Kützing, 1833 accepted as Bacillaria viridis Nitzsch, 1817 (new combination reference)
Frustulia viridula Kützing, 1833 (original description)
Gomphonema abbreviatum (Agardh) Kützing, 1833 (original description)
Gomphonema argentescens (C.A.Agardh) Kützing (original description)
Gomphonema brevipes Kützing, 1833 (1834) (original description)
Gomphonema curvatum var. curvatum Kützing, 1833 (1834) (original description)
Gomphonema dichotomum Kützing, 1833 (original description)
Gomphonema dichotomum var. dichotomum Kützing, 1833 (1834) (original description)
Gomphonema flabellatum Kützing, 1833 (1834) (original description)
Gomphonema fulgens (Greville) Kützing (original description)
Gomphonema minutissimum Kützing, 1833 (1834) (original description)
Gomphonema oculatum Kützing, 1833 (1834) (original description)
Gomphonema pohliaeformis Kützing, 1833 (1834) (original description)
Gomphonema ramosum (Agardh) Kützing, 1833 (1834) accepted as Diatoma ramosum Agardh, 1832 (new combination reference)
Gomphonema simplex Kützing, 1833 (1834) (original description)
Melosira fragilis (Roth) Kützing, 1833 (original description)
Melosira orichalcea var. orichalcea (Mertens ex specim. authent. Jurgens) Kützing, 1833 (1834) (new combination reference)
Melosira subflexilis Kützing, 1833 (original description)
Paltonophora F.T. Kützing, 1833 (original description)
Psygmatella F.T. Kützing, 1834 (original description)
Sphenophora F.T. Kützing, 1833 (original description)