Cymbella aequalis var. genuina Mayer, 1919 (original description)
Cymbella aequalis var. subinflata Mayer, 1947 (original description)
Cymbella aequalis var. undulata Mayer, 1947 (original description)
Cymbella affinis var. genuina Mayer, 1947 (original description)
Cymbella affinis var. gracilis Mayer, 1947 (original description)
Cymbella affinis var. maior Mayer, 1947 (original description)
Cymbella angustata var. genuina Mayer, 1947 (original description)
Cymbella cistula f. distans Mayer, 1947 (original description)
Cymbella cistula var. gracilis Mayer, 1947 (original description)
Cymbella cistula var. recta (Mayer) Mayer, 1947 accepted as
Cymbella cistula f. recta Mayer, 1913 (new combination reference)
Cymbella cuspidata var. anglica (Lagerstedt) Mayer, 1947 accepted as
Cymbella anglica Lagerstedt, 1873 † (new combination reference)
Cymbella cuspidata var. angusta Mayer, 1947 (original description)
Cymbella cuspidata var. capitata Mayer, 1947 (original description)
Cymbella cuspidata var. genuina Mayer, 1947 (original description)
Cymbella gastroides f. ornata Mayer, 1947 (original description)
Cymbella gastroides var. ventricosa Mayer, 1947 (original description)
Cymbella laevis var. excisa Mayer, 1947 (original description)
Cymbella laevis var. genuina Mayer, 1947 (original description)
Cymbella lanceolata f. ornata Mayer, 1947 (original description)
Cymbella lanceolata var. genuina Mayer, 1947 (original description)
Cymbella larvata Mayer, 1947 (original description)
Cymbella moelleriana var. genuina Mayer, 1947 (original description)
Cymbella moelleriana var. inflata Mayer, 1947 (original description)
Cymbella parva f. curta (Mayer) Mayer, 1947 accepted as
Cymbella parva var. curta Mayer, 1917 (new combination reference)
Cymbella parva var. genuina Mayer, 1947 (original description)
Cymbella rupicola f. capitata Mayer, 1947 (original description)
Cymbella sinuata var. genuina Mayer, 1947 (original description)
Cymbella tumidula var. capitata Mayer, 1947 (original description)
Cymbella tumidula var. genuina Mayer, 1947 (original description)
Encyonema caespitosum var. genuinum Mayer, 1947 (original description)
Encyonema caespitosum var. prostratiforme Mayer, 1947 (original description)
Encyonema caespitosum var. semicirculare (Lagerstedt) Mayer, 1947 accepted as
Cymbella affinis var. semicircularis Lagerstedt, 1873 (new combination reference)
Encyonema gracile var. genuinum Mayer, 1947 (original description)
Encyonema gracile var. undulatum Mayer, 1947 (original description)
Encyonema lacustre f. subrostratum Mayer, 1947 (original description)
Encyonema lacustre var. genuinum Mayer, 1947 (original description)
Encyonema norvegicum (Grunow) Mayer, 1947 accepted as
Cymbella norvegica Grunow, 1875 (new combination reference)
Encyonema prostratum var. genuinum Mayer, 1947 (original description)
Encyonema prostratum var. minutissimum Mayer, 1947 (original description)
Encyonema prostratum var. naviculaceum Mayer, 1947 (original description)
Encyonema turgidum var. genuinum Mayer, 1947 (original description)
Encyonema ventricosum f. minus Mayer, 1947 (original description)
Encyonema ventricosum var. excisum (Kützing) Mayer, 1947 accepted as
Cymbella excisa Kützing, 1844 (new combination reference)
Encyonema ventricosum var. genuinum Mayer, 1947 (original description)
Encyonema ventricosum var. laeve (Rabenhorst) Mayer, 1947 accepted as
Cymbella gracilis var. laevis H.L. Smith, 1874-1879 (new combination reference)
Encyonema ventricosum var. lunatum (W.Smith) Mayer, 1947 accepted as
Cymbella lunata W.Smith, 1855 (new combination reference)
Encyonema ventricosum var. lunula (Hilse) Mayer, 1947 accepted as
Cymbella lunula (Ehrenberg) Rabenhorst, 1853 accepted as
Cocconema lunula Ehrenberg, 1843 (new combination reference)
Encyonema ventricosum var. minutum (Hilse) Mayer, 1947 accepted as
Cymbella minuta Hilse, 1862 (new combination reference)
Encyonema ventricosum var. semirotundum Mayer, 1947 (original description)