Achnanthes brevipes var. capensis ‘De Toni' according to M. Peragallo, 1897 (taxonomy source)
Achnanthes citrina (Schmidt in Schmidt et al.) M. Peragallo, 1897 accepted as Cocconeis citrina Schmidt in Schmidt et al., 1895 (new combination reference)
Achnanthes cryptocephala (Grunow) M.Peragallo, 1897 accepted as Achnanthes minutissima var. cryptocephala Grunow, 1880 (new combination reference)
Achnanthes sinuata Kützing according to M. Peragallo (original description)
Actinocyclus janus (Castracane) M. Peragallo, 1897 accepted as Coscinodiscus janus Castracane, 1886 accepted as Charcotiella janus (Castrac.) S.Blanco & C.E.Wetzel, 2016 (new combination reference)
Actinoptychus antarcticus (F.S.Castracane degli Antelminelli) H.Heiden accepted as Omphalopelta antarctica Castracane, 1886 (new combination reference)
Actinoptychus cellulosus (Ehrenberg) M. Peragallo, 1897 accepted as Omphalopelta cellulosa Ehrenberg, 1844 (new combination reference)
Actinoptychus japonicus (Castracane) M. Peragallo, 1897 accepted as Omphalopelta japonica Castracane, 1886 (new combination reference)
Actinoptychus pardus var. pardus (Castracane) M. Peragallo, 1897 accepted as Omphalopelta parda Castracane, 1886 (new combination reference)
Actinoptychus shrubsolianus (Castracane) M. Peragallo, 1897 accepted as Omphalopelta shrubsoliana Castracane, 1886 (new combination reference)
Actinoptychus undulatus var. montereyi ‘A. Schmidt' M. Peragallo, 1897 (taxonomy source)
Amphipleura sullivantii ‘Habirshaw' according to M. Peragallo, 1897 (taxonomy source)
Amphiprora balearica (Grunow in Cleve & Grunow) M. Peragallo, 1897 accepted as Amphiprora sulcata var. balearica Grunow in Cleve & Grunow, 1880 (new combination reference)
Amphiprora samoensis ‘Grunow in Möller Catalogue, 1883' according to M. Peragallo, 1897 (taxonomy source)
Amphora atomus ‘Ehrenberg' according to Peragallo, 1897 (taxonomy source)
Amphora calumetica (Thomas ex Wolle) M.Peragallo, 1897 accepted as Amphiprora calumetica Thomas ex Wolle, 1890 (new combination reference)
Amphora monilifera ‘Leuduger-Fortmorel' according to Peragallo (taxonomy source)
Amphora normanii var. javanica (Grunow in Schmidt et al.) M. Peragallo, 1897 accepted as Amphora humicola var. javanica Grunow in Schmidt et al., 1875 (new combination reference)
Amphora ostrearia var. fossilis (Pantocsek) M. Peragallo, 1897 accepted as Amphora litoralis var. fossilis Pantocsek, 1889 (new combination reference)
Amphora recta ‘De Toni' according to M. Peragallo, 1897 (taxonomy source)
Amphoropsis complexa ‘Grunow in litt.' according to M. Peragallo, 1897 (taxonomy source)
Amphoropsis conserta (Lewis) M. Peragallo, 1897 accepted as Amphiprora conserta Lewis, 1862 (new combination reference)
Amphoropsis decipiens (Grunow in Van Heurck) Peragallo, 1897 accepted as Amphora decipiens Grunow in Van Heurck, 1883 (new combination reference)
Amphoropsis recta var. subplicata (Grunow in Cleve & Grunow) M. Peragallo, 1897 accepted as Amphiprora plicata var. subplicata Grunow in Cleve & Grunow, 1880 (new combination reference)
Asterolampra centraster (Johnston) Hernández-Becerril, 1991 accepted as Asteromphalus centraster Johnston, 1860 (taxonomy source)
Aulacodiscus stoeckhartii 'Pantocsek' M. Peragallo, 1897 (original description)
Auliscus johnsonii ‘A. Schmidt' according to M. Peragallo, 1897 (taxonomy source)
Bacillaria tenuis ‘Ehrenberg' according to Peragallo, 1854 (taxonomy source)
Bacteriastrum varians f. curvata (Shadbolt) M. Peragallo, 1897 accepted as Bacteriastrum curvatum Shadbolt, 1854 (new combination reference)
Bacteriastrum varians f. furcata (Shadbolt) M. Peragallo, 1897 accepted as Bacteriastrum furcatum Shadbolt, 1854 (new combination reference)
Bergonia tetrapoda ‘J. Brun' according to M. Peragallo, 1897 (taxonomy source)
Berkeleya lenormandi (Kützing) M. Peragallo, 1897 accepted as Schizonema lenormandi Kützing, 1849 (new combination reference)
Berkeleya minor Tempère in M. Peragallo, 1897 (original description)
Berkeleya rutilans var. antarctica ‘Cleve' M. Peragallo M. Peragallo, 1897 (new combination reference)
Biddulphia antarctica (Ehrenberg) M. Peragallo, 1897 accepted as Hemiaulus antarcticus Ehrenberg, 1844 (new combination reference)
Biddulphia nankoorensis ‘Grunow in Van Heurck' M. Peragallo, 1897 (taxonomy source)
Biddulphia punctata var. cretacea (Brun) M. Peragallo, 1897 accepted as Biddulphia cretacea Brun, 1896 (new combination reference)
Campylodiscus ecclesianus var. graeffei (Grunow in Schmidt et al.) M. Peragallo, 1897 accepted as Campylodiscus graeffei Grunow in Schmidt et al., 1875 (new combination reference)
Campylodiscus latus var. contiguus (Schmidt in Schmidt et al.) M. Peragallo, 1897 accepted as Campylodiscus contiguus Schmidt in Schmidt et al., 1875 (new combination reference)
Campylodiscus undulatus var. brightwellii (Grunow) Peragallo accepted as Campylodiscus brightwellii Grunow, 1862 (new combination reference)
Campyloneis grevillei var. reticulata Grunow, 1867 accepted as Campyloneis argus var. reticulata Grunow, 1867 (new combination reference)
Cestodiscus baldjikianus (Grunow) M. Peragallo, 1897 accepted as Coscinodiscus baldjikianus Grunow, 1888 (new combination reference)
Cestodiscus superbus var. moravicus (Grunow in Pantocsek) M. Peragallo, 1897 accepted as Coscinodiscus pulchellus var. moravica Grunow in Pantocsek, 1886 (new combination reference)
Coscinodiscus convexus (Castracane) M. Peragallo, 1897 accepted as Ethmodiscus convexus Castracane, 1886 (new combination reference)
Coscinodiscus discrepans (Rattray) M. Peragallo, 1897 accepted as Coscinodiscus leptopus var. discrepans Rattray, 1890 (new combination reference)
Coscinodiscus media var. parva Grunow "Boek Cat. 1889" according to Peragallo, 1903 (original description)
Coscinodiscus perforatus var. ambigua (Grunow) M. Peragallo, 1897 accepted as Coscinodiscus apiculatus var. ambigua Grunow, 1884 (new combination reference)
Cosmiodiscus armatus (Greville) M. Peragallo, 1897 accepted as Coscinodiscus armatus Greville, 1861 (new combination reference)
Cosmiodiscus elegans var. curta (Rattray) M. Peragallo, 1897 accepted as Coscinodiscus perikompsos var. curta Rattray, 1890 (new combination reference)
Cymbella graeca (Ehrenberg) M. Peragallo, 1897-1903 accepted as Cocconema graecum Ehrenberg, 1840 (new combination reference)
Cymbella uncinata (Ehrenberg) M. Peragallo, 1897-1903 accepted as Cocconema uncinatum Ehrenberg, 1871 (new combination reference)
Diploneis elliptica var. disciformis (Rabenhorst) M. Peragallo, 1897 accepted as Pinnularia disciformis Rabenhorst, 1853 (new combination reference)
Gomphonema oregonicum var. maximum (Grunow) M.Peragallo, 1897 accepted as Gomphonema maximum Grunow, 1880 (new combination reference)
Grammatophora angulosa f. constricta (Grunow in Van Heurck) M. Peragallo, 1897 accepted as Grammatophora hamulifera f. constricta Grunow in Van Heurck, 1881 (new combination reference)
Hemiaulus aries (Schmidt in Schmidt et al.) M. Peragallo, 1897 accepted as Trinacria aries Schmidt in Schmidt et al., 1886 † (new combination reference)
Hemiaulus coniferus (Brightwell) M. Peragallo, 1897 accepted as Triceratium coniferum Brightwell, 1856 (new combination reference)
Hemiaulus coronatus (Witt) M. Peragallo, 1897 accepted as Trinacria coronata Witt, 1885 † (new combination reference)
Hemiaulus jeremiae (Truan & Witt) M. Peragallo, 1897 accepted as Trinacria jeremiae Truan & Witt, 1888 † (new combination reference)
Hyalodiscus arcticus (Grunow) Thum, 1885 accepted as Hyalodiscus radiatus var. arctica Grunow, 1884 (new combination reference)
Hydrosera whampoensis var. biangulata M. Peragallo, 1897 (original description)
Hydrosera whampoensis var. hexagona (Pantocsek) M. Peragallo, 1897 (new combination reference)
Hydrosera whampoensis var. mauritania (Bergon) M. Peragallo, 1897 (new combination reference)
Mastogloia smithii var. alpina (Brun in Schmidt et al.) M. Peragallo, 1897 accepted as Mastogloia lacustris var. alpina Brun in Schmidt et al., 1893 (new combination reference)