Amphipentas antillarum (Cleve) De Toni, 1894 † accepted as Triceratium antillarum var. antillarum Cleve, 1878 (new combination reference)
Amphipentas boryana (Pantocsek) De Toni, 1894 † accepted as Triceratium boryanum Pantocsek, 1889 (new combination reference)
Amphipentas campechiana (Grunow) De Toni, 1894 † accepted as Triceratium campechianum Grunow in Cleve, 1878 (new combination reference)
Amphipentas godeffroyi (Grunow in Schmidt et al.) De Toni, 1894 † accepted as Triceratium godeffroyi f. godeffroyi Grunow in Schmidt et al., 1882 (new combination reference)
Amphipentas grovei (Pantocsek) De Toni, 1894 † accepted as Triceratium grovei var. grovei Pantocsek, 1886 (new combination reference)
Amphipentas hungarica (Pantocsek) De Toni, 1894 † accepted as Triceratium hungaricum Pantocsek, 1892 (new combination reference)
Amphipentas jimboi (Pantocsek) De Toni, 1894 † accepted as Triceratium jimboi Pantocsek, 1892 (new combination reference)
Amphipentas juncta (A.Schmidt) De Toni, 1894 † accepted as Triceratium junctum var. junctum Schmidt in Schmidt et al., 1886 (new combination reference)
Amphipentas juncta var. fossilis (Pantocsek) De Toni, 1894 † accepted as Triceratium junctum var. fossile Pantocsek, 1889 (new combination reference)
Amphipentas laeta (Pantocsek) De Toni, 1894 † accepted as Triceratium laetum Pantocsek, 1886 (new combination reference)
Amphipentas loczyi (Pantocsek) De Toni, 1894 † accepted as Triceratium loczyi var. loczyi Pantocsek, 1889 (new combination reference)
Amphipentas loczyi var. confluens (Pantocsek) De Toni, 1894 accepted as Triceratium loczyi var. confluens Pantocsek, 1889 (new combination reference)
Amphipentas nobilis (Greville) De Toni, 1894 † accepted as Amphitetras nobilis Greville, 1865 (new combination reference)
Amphipentas quinquelobata (Greville) De Toni, 1894 † accepted as Triceratium quinquelobatum Greville, 1866 (new combination reference)
Amphitetras acutangula (Greville) De Toni, 1894 accepted as Triceratium acutangulum var. acutangulum Greville, 1864 (new combination reference)
Amphitetras anderssonii (Cleve) De Toni, 1894 accepted as Triceratium anderssonii Cleve, 1881 (new combination reference)
Amphitetras atlantica (Castracane) De Toni, 1894 accepted as Triceratium atlanticum Castracane, 1886 (new combination reference)
Amphitetras balearica (Cleve & Grunow in Cleve) De Toni, 1894 accepted as Triceratium balearicum f. balearicum Cleve & Grunow in Cleve, 1881 (new combination reference)
Amphitetras bicornis (Cleve) De Toni, 1894 † accepted as Pseudictyota bicorne (Cleve) P.A. Sims & D. M. Williams in Sims et al., 2018 † (new combination reference)
Amphitetras blandita (Greville) De Toni, 1894 accepted as Triceratium blanditum Greville, 1861 (new combination reference)
Amphitetras campechiana (Grunow) De Toni, 1894 accepted as Triceratium campechianum Grunow in Cleve, 1878 (new combination reference)
Amphitetras canalifera (Brun) De Toni, 1894 accepted as Triceratium canalifer Brun, 1891 (new combination reference)
Amphitetras coerulescens (Pantocsek) De Toni, 1894 accepted as Triceratium coerulescens Pantocsek, 1892 (new combination reference)
Amphitetras conciliata (Pantocsek) De Toni, 1894 accepted as Triceratium conciliatum var. conciliatum Pantocsek, 1889 (new combination reference)
Amphitetras conciliata var. validior (Pantocsek) De Toni, 1894 accepted as Triceratium conciliatum var. validior Pantocsek, 1889 (new combination reference)
Amphitetras cornuta (Greville) De Toni, 1894 accepted as Triceratium cornutum R.K.Greville † accepted as Trinacria cornuta (R.K.Greville) P.A.Sims & R.Ross, 1988 † (new combination reference)
Amphitetras dutertrei (Pantocsek & Tempère) De Toni, 1894 accepted as Triceratium dutertrei Pantocsek & Tempère in Pantocsek, 1889 † accepted as Entogoniopsis dutertrei (Pantocsek & Tempère) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (new combination reference)
Amphitetras grevillei var. grevillei De Toni, 1894 (original description)
Amphitetras inconspicua (Greville) De Toni, 1894 accepted as Triceratium inconspicuum Greville, 1861 † accepted as Fenneria brachiata (T.Brightwell) J.Witkowski, 2018 † (new combination reference)
Amphitetras ingloria (Greville) De Toni, 1894 accepted as Triceratium inglorium Greville, 1865 (new combination reference)
Amphitetras intermedia (Grove & Sturt) De Toni, 1894 accepted as Triceratium intermedium Grove & Sturt, 1887 (new combination reference)
Amphitetras kusnetzkiana (Pantocsek) De Toni, 1894 accepted as Triceratium kusnetzkianum Pantocsek, 1889 (new combination reference)
Amphitetras lanceolata (Pantocsek) De Toni, 1894 accepted as Triceratium lanceolatum Pantocsek, 1889 (new combination reference)
Amphitetras lata (Greville) De Toni, 1894 accepted as Triceratium latum var. latum Greville, 1865 (new combination reference)
Amphitetras margaritifera (Cleve) De Toni, 1894 accepted as Triceratium margaritiferum Cleve, 1881 (new combination reference)
Amphitetras oculata (Greville) De Toni, 1894 accepted as Triceratium oculatum f. oculatum Greville, 1864 (new combination reference)
Amphitetras perryana (Truan y Luard & Witt) De Toni, 1894 accepted as Triceratium perryanum Truan y Luard & Witt, 1888 (new combination reference)
Amphitetras pethoei (Pantocsek) De Toni, 1894 accepted as Triceratium pethoei Pantocsek, 1889 (new combination reference)
Amphitetras pulvillus (Castracane) De Toni, 1894 accepted as Triceratium pulvillus Castracane, 1886 (new combination reference)
Amphitetras quadrangularis (Greville) De Toni, 1894 accepted as Triceratium quadrangulare Greville, 1865 (new combination reference)
Amphitetras quadricornis (Greville) De Toni, 1894 accepted as Triceratium quadricorne Greville, 1865 (new combination reference)
Amphitetras rectangularis (Grove & Sturt) De Toni, 1894 accepted as Triceratium rectangulare Grove & Sturt, 1887 (new combination reference)
Amphitetras sturtii (Pantocsek) De Toni, 1894 accepted as Triceratium sturtii Pantocsek, 1886 (new combination reference)
Amphitetras tetragona (Pantocsek) De Toni, 1894 accepted as Triceratium tetragonum Pantocsek, 1889 (new combination reference)
Amphitetras unguiculata (Greville) De Toni, 1894 accepted as Triceratium unguiculatum Greville, 1864 (new combination reference)
Amphitetras zonatulata (Greville) De Toni, 1894 accepted as Triceratium zonatulatum f. zonulatum Greville, 1865 (new combination reference)
Anaulus birostratus De Toni, 1894 (original description)
Anaulus constrictus ‘Ehrenberg' according to De Toni, 1844 (taxonomy source)
Anaulus fossus (Grove & Sturt) De Toni, 1888 accepted as Biddulphia fossa Grove & Sturt, 1887 (new combination reference)
Aulacodiscus germanicus (Ehrenberg) ‘A. M. Edwards in Habirshaw' according to De Toni, 1894 accepted as Tripodiscus germanicus Ehrenberg, 1840 (taxonomy source)
Auliscus caelatus var. major ‘A. Schmidt' De Toni, 1894 (taxonomy source)
Auliscus elegans var. flammula (Tempère & Brun in Brun & Tempère) De Toni, 1894 accepted as Auliscus grunovii var. flammula Tempère & Brun in Brun & Tempère, 1889 (new combination reference)
Biddulphia hamata ‘Pantocsek' De Toni, 1886 (taxonomy source)
Biddulphia hamata f. minor ‘Pantocsek' De Toni, 1886 (taxonomy source)
Biddulphia zanzibarica A. Schmidt, 1894 (original description)
Brunia J. Tempère ex G.B. De Toni, 1894 (original description)
Brunia japonica Tempère ex De Toni, 1894 (original description)
Brunia mirabilis (Brun) Tempère ex De Toni, 1894 accepted as Brightwellia mirabilis Brun in Brun & Tempère, 1889 (new combination reference)
Centrodiscus fossilis (Pantocsek) De Toni, 1894 accepted as Kentrodiscus fossilis Pantocsek, 1889 † (new combination reference)
Cerataulus laevis var. sinensis (Grunow) De Toni, 1894 accepted as Cerataulus laevis var. chinensis Grunow, 1877 (new combination reference)
Cerataulus scaber var. scaber (Greville) DeToni, 1894 accepted as Eupodiscus scaber var. scaber Greville, 1864 (new combination reference)
Ceratophora nitida (Pantocsek) De Toni, 1894 accepted as Keratophora nitida J.Pantocsek, 1889 † (new combination reference)
Ceratophora robusta (Pantocsek) De Toni, 1894 accepted as Keratophora robusta Pantocsek, 1889 † (new combination reference)
Chaetoceros bacteriastrum var. hispidus (Castracane) De Toni, 1894 accepted as Bacteriastrum wallichii var. hispida Castracane, 1886 (new combination reference)
Chaetoceros brevispinus (Castracane) De Toni, 1894 accepted as Bacteriastrum brevispinum Castracane, 1886 (new combination reference)
Chaetoceros halo (Brun in Brun & Tempère) De Toni, 1894 accepted as Bacteriastrum halo Brun in Brun & Tempère, 1889 (new combination reference)
Chaetoceros nodulosus (Shadbolt) De Toni, 1894 accepted as Bacteriastrum nodulosa Shadbolt, 1854 (new combination reference)
Chaetoceros pennatus (Grunow in Van Heurck) De Toni, 1894 (new combination reference)
Chaetoceros productus (H.L. Smith) De Toni, 1894 accepted as Bacteriastrum productum H.L. Smith, 1874 (new combination reference)
Chaetoceros spirillum (Castracane) De Toni, 1894 accepted as Bacteriastrum spirillum Castracane, 1886 (new combination reference)
Chaetoceros symmetricus (Leuduger-Fortmorel) De Toni, 1894 accepted as Bacteriastrum symmetricum Leuduger-Fortmorel, 1892 (new combination reference)
Coscinodiscus cryophilus (Grunow) De Toni, 1894 accepted as Coscinodiscus kryophilus Grunow, 1884 (new combination reference)
Coscinodiscus entoleion var. decoratus (Brun) De Toni, 1894 accepted as Coscinodiscus decoratus Brun, 1891 (new combination reference)
Coscinodiscus pantocsekii De Toni, 1894 (original description)
Coscinodiscus regina G.C.Wallich (original description)
Denticella armatum (Leuduger-Fortmorel) De Toni, 1894 accepted as Biddulphia armata Leuduger-Fortmorel, 1879 (new combination reference)
Denticella blanda (Schmidt in Schmidt et al.) De Toni, 1894 accepted as Biddulphia blanda Schmidt in Schmidt et al., 1888 (new combination reference)
Denticella coruscans (Schmidt in Schmidt et al.) De Toni, 1894 accepted as Biddulphia coruscans Schmidt in Schmidt et al., 1888 (new combination reference)
Denticella elesdiana (Pantocsek) De Toni, 1894 accepted as Biddulphia elesdiana Pantocsek, 1889 (new combination reference)
Denticella longicruris (Greville) De Toni, 1894 accepted as Hobaniella longicruris (Greville) P.A. Sims & D.M. Williams in Sims et al., 2018 (new combination reference)
Denticella longicruris var. japonica (Grunow in Van Heurck) De Toni, 1894 accepted as Biddulphia longicruris var. japonica Grunow in Van Heurck, 1882 (new combination reference)
Denticella longicruris var. leptoceros (Grunow in Van Heurck) De Toni, 1894 accepted as Biddulphia longicruris var. leptoceros Grunow in Van Heurck, 1882 (new combination reference)
Denticella ruthenica (Witt) De Toni, 1894 † accepted as Parodontella ruthenica (Witt) D M.Williams & P.A.Sims in Sims et al., 2018 † (new combination reference)
Denticella sinensis (Greville) De Toni, 1894 accepted as Biddulphia sinensis Greville, 1866 (new combination reference)
Denticella suborbicularis (Grunow in Van Heurck) De Toni, 1894 accepted as Biddulphia suborbicularis var. suborbicularis Grunow in Van Heurck, 1882 (new combination reference)
Denticella tumida var. peruviana (Grunow in Van Heurck) De Toni, 1894 † accepted as Ralfsiella peruviana (Grunow in Van Heurck) P.A. Sims, D. M. Williams & M. Ashworth, 2018 † (new combination reference)
Denticella vitrea (Brun) De Toni, 1894 accepted as Biddulphia vitrea Brun, 1891 (new combination reference)
Denticella zanzibarica (Schmidt in Schmidt et al.) De Toni, 1894 accepted as Biddulphia sansibarica A. Schmidt in Schmidt et al., 1888 (new combination reference)
Denticula zanzibarica (Schmidt in Schmidt et al.) De Toni, 1894 accepted as Biddulphia sansibarica A. Schmidt in Schmidt et al., 1888 (new combination reference)
Detonula F. Schütt ex G.B. De Toni, 1894 (original description)
Dicladiopsis barbadensis (Greville) De Toni, 1894 accepted as Dicladia barbadensis Greville, 1865 (new combination reference)
Dicladiopsis robusta (Greville) De Toni, 1894 accepted as Dicladia robusta Greville, 1865 (new combination reference)
Ditylum sol (Grunow) De Toni, 1894 (new combination reference)
Endictya campechiana (Grunow) De Toni, 1894 accepted as Stephanopyxis campechiana Grunow in Schmidt et al., 1881 (new combination reference)
Entogoniopsis major J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (additional source)
Eunotogramma vittatum De Toni, 1894 (original description)
Euodia gibba var. aequatorea (Petit) De Toni, 1894 (new combination reference)
Eupodiscus weissflogii (Grunow) De Toni, 1894 accepted as Conticribra weissflogii (Grunow) K.Stachura-Suchoples & D.M.Williams, 2009 † (new combination reference)
Gaillonella nummuloides var. elesdiana (Pantocsek) De Toni, 1894 accepted as Melosira nummuloides var. elesdiana Pantocsek, 1886 (new combination reference)
Gaillonella nummuloides var. hyperborea (Grunow in Van Heurck) De Toni, 1894 accepted as Melosira nummuloides var. hyperborea Grunow ex Cleve & Moller, 1882 (new combination reference)