Hyalodiscus aculeatus Paramonova, 1964 (uncertain > unassessed )
Hyalodiscus adelius (Manguin) Nikolaev, 1984 (uncertain > unassessed )
Hyalodiscus ambiguus (Grunow) Tempère & Peragallo, 1890 † accepted as Podosira ambigua var. ambigua Grunow, 1879
Hyalodiscus ambiguus var. kamtschaticus (Grunow) A.P. Jousé in A.I. Proshkina-Lavrenko, 1949 † accepted as Podosira ambigua var. kamtschatica Grunow in Cleve & Grunow, 1880
Hyalodiscus annulus Mann, 1925 (uncertain > unassessed )
Hyalodiscus arcticus (Grunow) Thum, 1885 accepted as Hyalodiscus radiatus var. arctica Grunow, 1884
Hyalodiscus argus (Grunow; Grunow) Mann, 1925 accepted as Podosira argus var. argus Grunow, 1878
Hyalodiscus aspersus Mann, 1925 (uncertain > unassessed )
Hyalodiscus bifrons Leuduger-Fortmorel, 1892 (uncertain > unassessed )
Hyalodiscus californicus Bailey ex Kitton, 1878 (uncertain > unassessed )
Hyalodiscus cervinus Brightw., 1860 † (uncertain > unassessed )
Hyalodiscus chromatoaster Karsten, 1905 (uncertain > unassessed )
Hyalodiscus cicatrix Mann, 1937 (uncertain > unassessed )
Hyalodiscus constrictus (Pantocsek) Kanaya, 1957 accepted as Podosira constricta Pantocsek, 1892
Hyalodiscus corrugatus Hajós, 1968 (uncertain > unassessed )
Hyalodiscus crepitans Mann, 1937 (uncertain > unassessed )
Hyalodiscus debesi Reichelt, 1903 (uncertain > unassessed )
Hyalodiscus dentatus Korotkevicz, 1964 (uncertain > unassessed )
Hyalodiscus dentatus var. kamtschaticus Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain > unassessed )
Hyalodiscus dubiosus (Grunow manuscript in Rattray) Karsten, 1905 accepted as Coscinodiscus dubiosus var. dubiosus Grunow manuscript in Rattray, 1890
Hyalodiscus dubiosus var. curvans (Rattray) Desikachary & Sreelatha, 1989 accepted as Coscinodiscus dubiosus var. curvans Rattray, 1890
Hyalodiscus elegans Strelnikova, 1974 † (uncertain > unassessed )
Hyalodiscus franklini (Ehrenberg) Cleve † (uncertain > unassessed )
Hyalodiscus franklinii (Ehrenberg) Cleve accepted as Craspedodiscus franklinii Ehrenberg, 1853
Hyalodiscus franklinii var. robusta (Grove & Sturt) Desikachary & Sreelatha, 1989 accepted as Hyalodiscus subtilis var. robusta Grove & Sturt, 1887
Hyalodiscus frenguellii Hanna, 1932 (uncertain > unassessed )
Hyalodiscus granulosus M. Peragallo in Tempère & Peragallo, 1908 (uncertain > unassessed )
Hyalodiscus guttula Mikitinskii, 1912 (uncertain > unassessed )
Hyalodiscus heribaudi (Brun) Ehrlich, 1969 accepted as Melosira heribaudii Brun in A. Schmidt, 1893
Hyalodiscus hirtus Mann, 1925 (uncertain > unassessed )
Hyalodiscus hormoides (Montagne) Petit, 1877 accepted as Melosira hormoides var. hormoides Montagne, 1839
Hyalodiscus horvaticii Jurilj, 1957 (uncertain > unassessed )
Hyalodiscus kerguelensis Karsten, 1905 (uncertain > unassessed )
Hyalodiscus korotnevii Knipowitch, 1921 (uncertain > unassessed )
Hyalodiscus kryshtofovichii A.P.Jousé, 1949 † (uncertain > unassessed )
Hyalodiscus laevis Ehrenberg, 1845 †
Hyalodiscus laevis var. doljensis Pantocsek, 1886 (uncertain > unassessed )
Hyalodiscus laevis var. laevis Ehrenberg, 1845 (uncertain > unassessed )
Hyalodiscus laevis var. yarrensis Grunow in Cleve & Grunow, 1880 (uncertain > unassessed )
Hyalodiscus lentiginosus J.John, 1983 (uncertain > unassessed )
Hyalodiscus limax Lazarev, 1916 (uncertain > unassessed )
Hyalodiscus maculatus (W. Smith) Cleve, 1873 accepted as Podosira maculata W.Smith, 1856
Hyalodiscus maximus (Kützing) Grunow in Schneider, 1878 accepted as Cyclotella maxima Kützing, 1844
Hyalodiscus maximus sensu Grunow, 1884 (uncertain > unassessed )
Hyalodiscus maximus var. arctica Cleve in Cleve & Moller, 1877 (uncertain > unassessed )
Hyalodiscus maximus var. maximus Petit, 1877 (uncertain > unassessed )
Hyalodiscus mendosus VanLandingham, 1971 (uncertain > unassessed )
Hyalodiscus nobilis Pantocsek, 1889 (uncertain > unassessed )
Hyalodiscus obsoletus Sheshukova-Poretskaya, 1964 (uncertain > unassessed )
Hyalodiscus obsoletus Sheshukova-Poretzkaya, 1959 (uncertain > unassessed )
Hyalodiscus oceanicus (uncertain > unassessed )
Hyalodiscus oceanicus var. craspedodiscus Ehrenberg, 1863 (uncertain > unassessed )
Hyalodiscus oceanicus var. oceanicus Ehrenberg, 1863 (uncertain > unassessed )
Hyalodiscus oculatus Jouse in Dzinoridze, Jouse & Strelnikova, 1979 (uncertain > unassessed )
Hyalodiscus pantocsekii (uncertain > unassessed )
Hyalodiscus pantocsekii var. laevis M. Peragallo, 1921 (uncertain > unassessed )
Hyalodiscus pantocsekii var. pantocsekii Van Heurck, 1909 (uncertain > unassessed )
Hyalodiscus parvulus Karsten, 1907 (uncertain > unassessed )
Hyalodiscus patagonicus Ehrenberg, 1845 (uncertain > unassessed )
Hyalodiscus pauli Azpeitia, 1911 (uncertain > unassessed )
Hyalodiscus permaculatus Grove ex Tempère & Peragallo, 1889-1895 (uncertain > unassessed )
Hyalodiscus planus Kozyrenko, 1971 † (uncertain > unassessed )
Hyalodiscus plicatus Kozyrenko, 1971 † (uncertain > unassessed )
Hyalodiscus propeplanus Mann, 1925 (uncertain > unassessed )
Hyalodiscus punctatus Meister, 1937 (uncertain > unassessed )
Hyalodiscus punctatus Schmidt in Schmidt et al., 1888 (uncertain > unassessed )
Hyalodiscus punctulosus Korotkevicz, 1964 (uncertain > unassessed )
Hyalodiscus pustulatus Schmidt in Schmidt et al., 1888 (uncertain > unassessed )
Hyalodiscus radiatus (O'Meara) Grunow, 1880 accepted as Pyxidicula radiata O'Meara, 1877
Hyalodiscus radiatus J.W. Bailey ex H.L. Smith, 1873 (uncertain > unassessed )
Hyalodiscus radiatus f. minor Cleve & Grunow, 1880 (uncertain > unassessed )
Hyalodiscus radiatus f. minor M. Peragallo in Peragallo & Peragallo, 1911 (uncertain > unassessed )
Hyalodiscus radiatus var. arctica Grunow, 1884 (uncertain > unassessed )
Hyalodiscus radiatus var. biharensis Pantocsek, 1886 (uncertain > unassessed )
Hyalodiscus radiatus var. maxima (Petit) Cleve & Grunow, 1880 (uncertain > unassessed )
Hyalodiscus radiatus var. minor Forti in Tempère & Peragallo, 1909 (uncertain > unassessed )
Hyalodiscus radiatus var. minor Forti, 1910 (uncertain > unassessed )
Hyalodiscus radiatus var. parva Forti, 1913 (uncertain > unassessed )
Hyalodiscus radiatus var. radiatus (O'Meara) Grunow in Cleve & Grunow, 1880 accepted as Pyxidicula radiata O'Meara, 1877
Hyalodiscus radiatus var. striata Desikachary & Sreelatha, 1989 (uncertain > unassessed )
Hyalodiscus reticulatus Schmidt in Schmidt et al., 1888 (uncertain > unassessed )
Hyalodiscus robustus (Grove & Sturt) Grove ex Tempere & Peragallo, 1889-1895 accepted as Hyalodiscus subtilis var. robusta Grove & Sturt, 1887
Hyalodiscus rossicus Pantocsek, 1889 (uncertain > unassessed )
Hyalodiscus rossii Desikachary & Sreelatha, 1989 (uncertain > unassessed )
Hyalodiscus russicus Pantocsek (uncertain > unassessed )
Hyalodiscus scheschukovii Jousé, 1951 (uncertain > unassessed )
Hyalodiscus schmidtii Frenguelli, 1926 (uncertain > unassessed )
Hyalodiscus scoticus (Kützing) Grunow, 1879 †
Hyalodiscus scoticus f. remotus Korotkevic, 1957 (uncertain > unassessed )
Hyalodiscus scoticus f. remotus O. Korotkevich, 1959 (uncertain > unassessed )
Hyalodiscus scoticus f. scoticus (Kützing) Grunow, 1879 accepted as Cyclotella scotica Kützing, 1844
Hyalodiscus scoticus var. griseolus Proschkina-Lavrenko, 1961 (uncertain > unassessed )
Hyalodiscus scoticus var. minor Tempère & Peragallo, 1909 (uncertain > unassessed )
Hyalodiscus sphaerophorus Makarova, 1961 (uncertain > unassessed )
Hyalodiscus spiniferus Manguin, 1957 (uncertain > unassessed )
Hyalodiscus spiniferus Manguin, 1960 (uncertain > unassessed )
Hyalodiscus stelliger J.W.Bailey, 1854 † accepted as Podosira stelligera (Bailey) A.Mann, 1907
Hyalodiscus stelliger sensu Cleve & Moller, 1877 (uncertain > unassessed )
Hyalodiscus stelliger f. major Frenguelli, 1930 (uncertain > unassessed )
Hyalodiscus stelliger f. stelliger J.W. Bailey, 1854 (uncertain > unassessed )