Melosira arenaria var. varennarum (M. Peragallo & Heribaud in Heribaud) F.W. Mills, 1934 accepted as
Melosira varennarum M. Peragallo & Héribaud in Héribaud, 1893 (new combination reference)
Melosira debyi (Pantocsek) F.W. Mills, 1934 accepted as
Paralia debyi Pantocsek, 1892 (new combination reference)
Melosira distans var. solida (Eulenstein manuscript, Grunow) F.W. Mills, 1934 accepted as
Melosira solida var. solida Eulenstein in Grunow in Van Heurck, 1882 (new combination reference)
Melosira distans var. valida (Grunow in Van Heurck) F.W. Mills, 1934 accepted as
Melosira crenulata var. valida Grunow, 1882 (new combination reference)
Melosira granulata var. armata 'Héribaud' according to Mills (original description)
Melosira lyrata var. tenuiores (Grunow in Van Heurck) F.W. Mills, 1934 accepted as
Melosira lyrata f. tenuior Grunow in Van Heurck, 1882 (new combination reference)
Melosira moniliformis var. australis (M. Peragallo) F.W. Mills, 1934 accepted as
Melosira borrerii var. australis M. Peragallo, 1921 (new combination reference)
Melosira polycystinica (Pantocsek) F.W. Mills, 1934 accepted as
Paralia polycystinica Pantocsek, 1892 (new combination reference)
Melosira rossica (Pantocsek) F.W. Mills, 1934 accepted as
Paralia rossica Pantocsek, 1889 (new combination reference)
Melosira sol var. castracanei F. W. Mills, 1934 (original description)
Melosira subarctica Otto Müller accepted as
Melosira italica f. subarctica (Otto Müller) (new combination reference)
Melosira sulcata f. hungarica (Pantocsek) F.W. Mills, 1934 accepted as
Paralia sulcata f. hungarica Pantocsek, 1889 (new combination reference)
Melosira sulcata f. plana (Ehrenberg; Grunow) F.W. Mills, 1934 (new combination reference)
Melosira sulcata f. plana (Ehernberg; Grunow) F.W. Mills, 1934 (new combination reference)
Melosira sulcata f. radiata (Grunow) F.W. Mills, 1934 (new combination reference)
Melosira sulcata f. radiolata (Grunow) F.W. Mills, 1934 (new combination reference)
Melosira sulcata var. minima (Østrup) F.W. Mills, 1934 accepted as
Paralia sulcata var. minima Østrup, 1895 (new combination reference)
Muelleriella limbata var. aristata (Tempère & Brun in Brun & Tempère) F.W. Mills, 1934 accepted as
Stephanopyxis aristata Tempère & Brun in Brun & Tempère, 1889 (new combination reference)
Navicula affinis var. major (Grunow) F.W. Mills, 1934 accepted as
Navicula firma var. major Grunow, 1860 (new combination reference)
Navicula affinis var. major (M. Peragallo & Heribaud in Heribaud) F.W. Mills, 1934 accepted as
Navicula amphirhynchus var. major M. Peragallo & Héribaud in Héribaud, 1893 (new combination reference)
Navicula affinis var. rhodana (Brun) F.W.Mills, 1934 accepted as
Neidium affine var. rhodana Brun, 1895 (new combination reference)
Navicula alpestris var. grunowii (Meister) F.W. Mills, 1934 accepted as
Caloneis alpestris var. grunowii Meister, 1912 (new combination reference)
Navicula alpestris var. sarnensis (Meister) F.W. Mills, 1934 (new combination reference)
Navicula ambigua var. craticula (Van Heurck) F.W. Mills, 1934 (new combination reference)
Navicula americana F.W. Mills, 1934 (original description)
Navicula amphirhynchus f. major (M. Peragallo & Heribaud in Heribaud) F.W. Mills, 1934 accepted as
Navicula amphirhynchus var. major M. Peragallo & Héribaud in Héribaud, 1893 (new combination reference)
Navicula amphisbaena var. rivularis (H. Peragallo ex Gard) F.W. Mills, 1934 accepted as
Navicula subsalina var. rivularis H. Peragallo ex Gard, 1932 (new combination reference)
Navicula baileyana var. ovata F.W. Mills, 1934 (original description)
Navicula beyrichiana var. moravica (Cleve) F.W. Mills, 1934 accepted as
Diploneis gemmatula var. moravica Cleve, 1894 (new combination reference)
Navicula bifurcatum (Heiden in Schmidt et al.) F.W. Mills, 1934 accepted as
Neidium bifurcatum Heiden in Schmidt et al., 1906 (new combination reference)
Navicula bivittata var. angusta (Heiden in Schmidt et al.) F.W. Mills, 1934 accepted as
Caloneis bivittata var. angusta Heiden in Schmidt et al., 1906 (new combination reference)
Navicula bivittata var. lata (Heiden in Schmidt et al.) F.W. Mills, 1934 accepted as
Caloneis bivittata var. lata Heiden in Schmidt et al., 1906 (new combination reference)
Navicula bivittata var. robusta (Heiden) F.W.Mills, 1934 accepted as
Caloneis bivittata var. rostrata Heiden, 1906 (new combination reference)
Navicula bodosensis var. heribaudi (M. Peragallo in Heribaud) F.W. Mills, 1934 accepted as
Navicula heribaudi var. heribaudi M. Peragallo in Héribaud, 1893 (new combination reference)
Navicula bomboides f. minor (Cleve) F.W. Mills, 1934 (new combination reference)
Navicula brasiliensis var. complanata (Brun) F.W. Mills, 1934 accepted as
Navicula complanata Brun, 1896 (new combination reference)
Navicula brebissonii var. lucida (Lauby) F.W. Mills, 1934 (new combination reference)
Navicula brevis f. bicuneata (Cleve) F.W. Mills, 1934 (new combination reference)
Pinnularia balatonis (Pantocsek) Gandhi, 196, v.57(1) accepted as
Navicula balatonis Pantocsek, 1902 (new combination reference)