Campylodiscus noricus var. genuinus Kirchner, 1878 (original description)
Cocconeis communis var. pediculus (Ehrenberg) O.Kirchner, 1878 accepted as Cocconeis pediculus f. pediculus Ehrenberg, 1838 (new combination reference)
Cocconeis communis var. placentula (Ehrenberg) O.Kirchner, 1878 accepted as Cocconeis placentula f. placentula Ehrenberg, 1838 (new combination reference)
Cymatopleura solea var. genuina Kirchner, 1878 (original description)
Cymbella cistula (Ehrenberg) O.Kirchner, 1878 accepted as Bacillaria cistula Ehrenberg, 1828 (new combination reference)
Cymbella lanceolata (C.Agardh) C.Agardh, 1830 accepted as Frustulia lanceolata C.Agardh, 1827 (new combination reference)
Cymbella parva (W.Smith) Kirchner, 1878 accepted as Cocconema parvum W.Smith, 1853 (new combination reference)
Diatoma anceps (Ehrenberg) Kirchner, 1878 accepted as Fragilaria anceps Ehrenberg, 1843 (new combination reference)
Diatoma anceps var. curtum (Grunow) Kirchner, 1878 accepted as Odontidium anomalum var. curtum Grunow, 1862 (new combination reference)
Diatoma anomalum var. curtum Grun., 1862 (new combination reference)
Diatoma hiemale var. genuinum (Grunow) Kirchner, 1878 accepted as Odontidium hiemale var. genuina Grunow, 1862 (new combination reference)
Diatoma hiemale var. mesodon (Ehrenberg) Kirchner, 1878 accepted as Fragilaria mesodon Ehrenberg, 1839 (new combination reference)
Diatoma hiemale var. turgidulum (Ehrenberg) Kirchner, 1878 accepted as Fragilaria turgidula Ehrenberg, 1831 (new combination reference)
Encyonema gracile Kirchner, 1879 (original description)
Eunotia arcus var. bidens (Ehrenberg) Kirchner, 1878 accepted as Himantidium bidens var. bidens Ehrenberg, 1843 (new combination reference)
Eunotia arcus var. genuina Kirchner, 1878 (original description)
Eunotia pectinalis var. genuina Kirchner, 1878 (original description)
Gomphonema abbreviatum var. typicum Kirchner, 1878 (original description)
Melosira distans var. genuina Kirchner, 1878 (original description)
Melosira varians var. genuina Kirchner, 1878 (original description)
Meridion circulare f. genuinum Kirchner, 1878 (original description)
Meridion circulare var. grunowii Kirchner, 1878 (original description)
Nitzschia communis var. genuina Kirchner, 1878 (original description)
Nitzschia communis var. minuta Bleisch. accepted as Nitzschia minuta f. minuta Bleisch in Rabenhorst, 1860 (new combination reference)
Nitzschia communis var. perpusilla Rabenhorst accepted as Nitzschia perpusilla f. perpusilla Rabenhorst, 1861 (new combination reference)
Nitzschia palea var. genuina Kirchner, 1878 (original description)
Stauroptera brebissonii (Kützing) O.Kirchner, 1878 accepted as Navicula brebissonii f. brebissonii Kützing, 1844 (new combination reference)
Stauroptera brebissonii var. angusta (Grunow) Kirchner, 1878 accepted as Navicula brebissonii var. angusta Grunow, 1860 (new combination reference)
Stauroptera divergens (W.Smith) O.Kirchner, 1878 accepted as Pinnularia divergens f. divergens W. Smith, 1853 (new combination reference)
Surirella ovata f. genuina Kirchner, 1878 (original description)
Surirella ovata var. genuina Kirchner, 1878 (original description)
Synedra lunaris var. campyla (Hilse ex Rabenhorst) Kirchner, 1878 accepted as Synedra campyla Hilse in Rabenhorst, 1861 (new combination reference)
Synedra ulna var. biceps (Kützing) Kirchner, 1878 accepted as Synedra biceps f. biceps Kützing, 1844 (new combination reference)
Synedra ulna var. genuina Kirchner, 1878 (original description)
Synedra ulna var. splendens (Kützing) Kirchner, 1878 accepted as Frustulia splendens Kützing, 1833 (new combination reference)
Synedra ulna var. thalheimii Kirchner, 1878 (original description)
Tabellaria flocculosa var. genuina Kirchner, 1878 (original description)