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DiatomBase taxon details

Biddulphiaceae Kützing, 1844

148966  (urn:lsid:marinespecies.org:taxname:148966)

accepted
Family
Genus Alveoflexus N.I. Hendey & P.A. Sims, 1984 †
  » Species Alveoflexus firthii Hendey & Sims, 1984 † (uncertain, unassessed)
Genus Ancoropsis N.I. Hendey & P.A. Sims, 1984 †
  » Species Ancoropsis eocenica Hendey & Sims, 1984 † (uncertain, unassessed)
Genus Arcusidiscus S.Komura, 2008
Genus Biddulphia S.F. Gray, 1821
  » Species Biddulphia antediluviana (Ehrenberg) Van Heurck, 1885
    » Variety Biddulphia antediluviana var. antediluviana (Ehrenberg) Van Heurck, 1885 represented as Amphitetras antediluviana var. antediluviana Ehrenberg, 1840
    » Variety Biddulphia antediluviana var. minor (H. Peragallo & M. Peragallo) F.W. Mills represented as Amphitetras antediluviana var. minor Peragallo & Peragallo, 1902
    » Variety Biddulphia antediluviana var. minutum (Greville) F.W. Mills, 1933 represented as Amphitetras minuta Greville, 1861
    » Variety Biddulphia antediluviana var. pentagona (Hustedt) F.W. Mills, 1933 represented as Triceratium antediluvianum f. pentagona Hustedt, 1930
    » Variety Biddulphia antediluviana var. tesselata (Shadbolt) F.W. Mills, 1933 represented as Amphitetras tessellata Shadbolt, 1854
    » Variety Biddulphia antediluviana var. trigona (M. Peragallo in Tempère & Peragallo) F.W. Mills, 1933 represented as Triceratium antediluvianum var. trigona M. Peragallo in Peragallo & Peragallo, 1911
    » Variety Biddulphia antediluviana var. cruciformis ‘W. Smith' according to Mills (uncertain, unassessed)
    » Variety Biddulphia antediluviana var. excavata "Adam's Collection" according to Mills (uncertain, unassessed)
    » Variety Biddulphia antediluviana var. excavata Frenguelli, 1945 (uncertain, unassessed)
    » Variety Biddulphia antediluviana var. nobilis “Adam's Collection” according to F.W. Mills (uncertain, unassessed)
    » Variety Biddulphia antediluviana var. ornata Hendey, 1971 (uncertain, unassessed)
  » Species Biddulphia belgicae M.Peragallo
    » Variety Biddulphia belgicae var. belgicae M. Peragallo, 1921 (uncertain, unassessed)
    » Variety Biddulphia belgicae var. lata M. Peragallo, 1921 (uncertain, unassessed)
  » Species Biddulphia biddulphiana (J.E.Smith) Boyer, 1900
    » Variety Biddulphia biddulphiana var. abnormis Boyer, 1927 (uncertain, unassessed)
    » Variety Biddulphia biddulphiana var. biddulphiana (J.E. Smith) Boyer, 1900 (uncertain, unassessed)
  » Species Biddulphia discigera Grunow
    » Variety Biddulphia discigera var. discigera Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Biddulphia discigera var. fossilis Pantocsek, 1909 (uncertain, unassessed)
  » Species Biddulphia elegantula Greville
    » Variety Biddulphia elegantula var. elegantula Greville, 1865 (uncertain, unassessed)
    » Variety Biddulphia elegantula var. polycystinica Pantocsek, 1889 (uncertain, unassessed)
    » Variety Biddulphia elegantula var. polygibba Pantocsek, 1886 (uncertain, unassessed)
    » Variety Biddulphia elegantula var. sarmatica Pantocsek, 1889 (uncertain, unassessed)
    » Variety Biddulphia elegantula var. subgibbosa Schmidt in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Biddulphia heteromorpha T.F.Kozyrenko in T.F.Kozyrenko, A.P.Jousé & O.G.Kozlova, 1977 †
  » Species Biddulphia homala Pantocsek
    » Forma Biddulphia homala f. homala Pantocsek, 1886 (uncertain, unassessed)
    » Forma Biddulphia homala f. minor Pantocsek, 1886 (uncertain, unassessed)
  » Species Biddulphia inelegans (Greville) C.S.Boyer
    » Variety Biddulphia inelegans var. araeopora (Grunow in Van Heurck) Boyer, 1900 represented as Triceratium inelegans var. araepora Grunow in Van Heurck, 1883
    » Variety Biddulphia inelegans var. inelegans (Greville) Boyer, 1900 represented as Triceratium inelegans var. inelegans Greville, 1866
    » Variety Biddulphia inelegans var. jucatensis (Grunow in Schmidt) Boyer, 1883 represented as Triceratium jucatense Grunow in Schmidt et al., 1882
    » Variety Biddulphia inelegans var. micropora (Grunow in Van Heurck) Boyer, 1883 represented as Triceratium inelegans var. micropora Grunow in A. Schmidt, 1888
    » Variety Biddulphia inelegans var. tubulosa (Brun) F.W. Mills, 1933 represented as Triceratium inelegans var. tubulosa Brun, 1896
    » Variety Biddulphia inelegans var. araeopora Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Biddulphia inelegans var. nicobarica Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Biddulphia inelegans var. yucatensis Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Biddulphia inflata Greville
  » Species Biddulphia juncta (A.Schmidt) A.Mann, 1925
  » Species Biddulphia nobilis J.-J.Brun
    » Variety Biddulphia nobilis var. nobilis Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Biddulphia nobilis var. pentagona Brockmann, 1928 (uncertain, unassessed)
  » Species Biddulphia primordialis J.-J.Brun
    » Variety Biddulphia primordialis var. inermis Brun in Schmidt et al., 1892 (uncertain, unassessed)
    » Variety Biddulphia primordialis var. primordialis Brun, 1891 (uncertain, unassessed)
  » Species Biddulphia punctata Greville
    » Variety Biddulphia punctata var. cretacea (Brun) M. Peragallo, 1897 represented as Biddulphia cretacea Brun, 1896
    » Forma Biddulphia punctata f. pentagona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Biddulphia punctata f. punctata Greville, 1864 (uncertain, unassessed)
    » Forma Biddulphia punctata f. tetragona (uncertain, unassessed)
      » Subforma Biddulphia punctata f. tetragona minuta Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Biddulphia punctata f. trigona (uncertain, unassessed)
      » Subforma Biddulphia punctata f. trigona minuta Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Biddulphia punctata var. anthropomorpha ‘Van Heurck' according to Mills, 1933 (uncertain, unassessed)
    » Variety Biddulphia punctata var. belgicae M. Peragallo, 1921 (uncertain, unassessed)
    » Variety Biddulphia punctata var. cretacea Brun, 1896 (uncertain, unassessed)
    » Variety Biddulphia punctata var. subaurita Van Heurck, 1909 (uncertain, unassessed)
    » Variety Biddulphia punctata var. subtriundulata Van Heurck, 1909 (uncertain, unassessed)
  » Species Biddulphia radiata Roper, 1859
  » Species Biddulphia regina W.Smith, 1856
    » Variety Biddulphia regina var. polygibba Pantocsek, 1886 (uncertain, unassessed)
    » Variety Biddulphia regina var. regina W. Smith, 1856 (uncertain, unassessed)
  » Species Biddulphia rhombus (Ehrenberg) W.Smith, 1854
    » Subspecies Biddulphia rhombus subsp. trigona Cleve ex Van Heurck, 1882
    » Forma Biddulphia rhombus f. rhombus (Ehrenberg) W. Smith in Roper, 1854 represented as Zygoceros rhombus Ehrenberg, 1839
    » Forma Biddulphia rhombus f. tetragona Hustedt, 1927 represented as Biddulphia rhombus var. tetragona A.Schmidt, 1874
    » Forma Biddulphia rhombus f. trigona Hustedt, 1927 represented as Biddulphia rhombus var. trigona Cleve ex Van Heurck, 1882
    » Variety Biddulphia rhombus var. atlantica J.Frenguelli, 1930 represented as Zygoceros atlanticus (Frenguelli) Sar, 2015
    » Forma Biddulphia rhombus f. fossilis J. Brun in Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Forma Biddulphia rhombus f. major Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Forma Biddulphia rhombus f. trigona Brun in Brun et al., 1891 (uncertain, unassessed)
    » Variety Biddulphia rhombus var. fossilis Brun in Brun et al., 1891 (uncertain, unassessed)
    » Variety Biddulphia rhombus var. robusta (Ehrenberg) W. Smith, 1856 (uncertain, unassessed)
    » Variety Biddulphia rhombus var. tetragona A.Schmidt, 1874 (uncertain, unassessed)
    » Variety Biddulphia rhombus var. trigona Cleve ex Van Heurck, 1882 (uncertain, unassessed)
    » Variety Biddulphia rhombus var. typica Cleve-Euler, 1951 (uncertain, unassessed)
  » Species Biddulphia rigida A.Schmidt, 1888 †
  » Species Biddulphia robertsiana (Greville) C.S.Boyer
  » Species Biddulphia rostrata F.Hustedt
    » Variety Biddulphia rostrata var. alata Proschkina-Lavrenko, 1961 (uncertain, unassessed)
    » Variety Biddulphia rostrata var. rostrata Hustedt, 1939 (uncertain, unassessed)
  » Species Biddulphia schmidtii (C.Janisch) A.Mann
  » Species Biddulphia subaequa (Kützing) J.Ralfs, 1861
  » Species Biddulphia suborbicularis Grunow
    » Variety Biddulphia suborbicularis var. arctica Østrup, 1897 (uncertain, unassessed)
    » Variety Biddulphia suborbicularis var. suborbicularis Grunow in Van Heurck, 1882 (uncertain, unassessed)
  » Species Biddulphia tridens (Ehrenberg) Ehrenberg, 1841
    » Forma Biddulphia tridens f. aerodynamica (Jurilj) VanLandingham, 1968 represented as Biddulphia tuomeyi f. aerodynamica Jurilj, 1957
    » Forma Biddulphia tridens f. bispina (Jurilj) VanLandingham, 1968 represented as Biddulphia tuomeyi f. bispina Jurilj, 1957
    » Variety Biddulphia tridens var. boryana (Pantocsek) VanLandingham, 1968 represented as Biddulphia tuomeyi var. boryana Pantocsek, 1889
    » Variety Biddulphia tridens var. contorta (Forti) VanLandingham, 1968 represented as Biddulphia tuomeyi f. contorta Forti, 1912
    » Variety Biddulphia tridens var. distenta (Forti) VanLandingham, 1968 represented as Biddulphia tuomeyi var. distenta Forti, 1913
    » Variety Biddulphia tridens var. hungarica (Pantocsek) VanLandingham, 1968 represented as Biddulphia tuomeyi var. hungarica Pantocsek, 1889
    » Variety Biddulphia tridens var. tridens (Ehrenberg) Ehrenberg, 1840 represented as Denticella tridens Ehrenberg, 1838
  » Species Biddulphia tridentata Ehrenberg
    » Forma Biddulphia tridentata f. minor Pantocsek, 1889 (uncertain, unassessed)
    » Forma Biddulphia tridentata f. tridentata Ehrenberg, 1854 (uncertain, unassessed)
    » Variety Biddulphia tridentata var. andesitica Pantocsek, 1889 (uncertain, unassessed)
  » Species Biddulphia tumida (Ehrenberg) Roper, 1859
  » Species Biddulphia tuomeyi (J.W.Bailey) Roper, 1859
    » Forma Biddulphia tuomeyi f. andesitica (Pantocsek) F.W. Mills, 1933 represented as Biddulphia tridentata var. andesitica Pantocsek, 1889
    » Forma Biddulphia tuomeyi f. capucina (A.W.F.Schmidt) A.Jurilj, 1957 represented as Biddulphia capuzina Schmidt, 1888
    » Forma Biddulphia tuomeyi f. margaritifera (Shadbolt) Forti, 1913 represented as Denticella margaritifera Shadbolt, 1854
    » Forma Biddulphia tuomeyi f. minor (Pantocsek) F.W. Mills, 1933 represented as Biddulphia tridentata f. minor Pantocsek, 1889
    » Forma Biddulphia tuomeyi f. rigida (A. Schmidt) Jurilj, 1957 † represented as Biddulphia rigida var. rigida Schmidt in Schmidt et al., 1888
    » Forma Biddulphia tuomeyi f. tridentata (Ehrenberg) A.Jousé represented as Biddulphia tridentata f. tridentata Ehrenberg, 1854
    » Forma Biddulphia tuomeyi f. tuomeyi (J.W. Bailey) Roper, 1859 represented as Zygoceros tuomeyi J.W.Bailey, 1844
    » Variety Biddulphia tuomeyi var. elongata (Pantocsek) Forti, 1910 represented as Biddulphia tuomeyi f. elongata Pantocsek, 1886
    » Variety Biddulphia tuomeyi var. margaritifera (Shadbolt) Forti in Tempère & Peragallo, 1914 represented as Denticella margaritifera Shadbolt, 1854
    » Variety Biddulphia tuomeyi var. tridentata (Ehrenberg) Jousé in Proshkina-Lavrenko, 1949 represented as Biddulphia tridentata f. tridentata Ehrenberg, 1854
    » Forma Biddulphia tuomeyi f. aerodynamica Jurilj, 1957 (uncertain, unassessed)
    » Forma Biddulphia tuomeyi f. bispina Jurilj, 1957 (uncertain, unassessed)
    » Forma Biddulphia tuomeyi f. contorta Forti, 1912 (uncertain, unassessed)
    » Forma Biddulphia tuomeyi f. cretacea Jousé, 1951 (uncertain, unassessed)
    » Forma Biddulphia tuomeyi f. elongata Pantocsek, 1886 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. aeocenica Krotov in Krotov & Schibkova, 1959 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. boryana Pantocsek, 1889 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. breviceps Grunow in Schmidt et al. Schmidt, 1888 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. centrospinosa Forti, 1913 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. charkoviana Jousé in Proshkina-Lavrenko, 1949 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. distenta Forti, 1913 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. ensifera Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. gibbicornis Forti in Tempère & Peragallo, 1914 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. globiceps Grunow in Schmidt et al., 1888 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. hungarica Pantocsek, 1889 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. media Forti, 1913 (uncertain, unassessed)
    » Variety Biddulphia tuomeyi var. pacifica Castracane, 1886 (uncertain, unassessed)
  » Species Biddulphia acuta (Ehrenberg) Boyer, 1900 represented as Triceratium acutum Ehrenberg, 1844 (1845)
  » Species Biddulphia affinis (Grunow in Van Heurck) Van Heurck, 1909 represented as Triceratium affine Grunow in Van Heurck, 1883
  » Species Biddulphia americana (Ralfs in Pritchard) Boyer, 1900 represented as Triceratium americanum var. americanum Ralfs in Pritchard, 1861
  » Species Biddulphia amphicephala (Ehrenberg) Ralfs in Pritchard, 1861 represented as Odontella amphicephala Ehrenberg, 1845
  » Species Biddulphia antarctica (Ehrenberg) M. Peragallo, 1897 represented as Hemiaulus antarcticus Ehrenberg, 1844
    » Forma Biddulphia antarctica f. typica ‘Meunier' VanLandingham (uncertain, unassessed)
  » Species Biddulphia antillarum (Cleve) Boyer, 1900 represented as Triceratium antillarum var. antillarum Cleve, 1878
  » Species Biddulphia arcuata (Shadbolt) F.W. Mills, 1933 represented as Triceratium arcuatum Shadbolt, 1854
  » Species Biddulphia balaena (Ehrenberg) T.Brightwell represented as Zygoceros balaena Ehrenberg, 1853
  » Species Biddulphia balearica (Cleve & Grunow) A.Mann, 1925 represented as Triceratium balearicum f. balearicum Cleve & Grunow in Cleve, 1881
  » Species Biddulphia biquadrata (Janisch in Schmidt et al.) Boyer, 1900 represented as Triceratium biquadratum Janisch, 1886
  » Species Biddulphia brachiolatum (Brightwell) Taylor, 1970 represented as Triceratium brachiolatum Brightwell, 1853
  » Species Biddulphia broeckii (Leuduger-Fortmorel) Mann, 1925 represented as Triceratium broeckii Leuduger-Fortmorel, 1879
  » Species Biddulphia californica (Schmidt) Boyer, 1901 represented as Cerataulus californicus Schmidt in Schmidt et al., 1888
  » Species Biddulphia campeachiana (Grunow) Boyer, 1900 represented as Triceratium campechianum Grunow in Cleve, 1878
  » Species Biddulphia castellifera (Grunow) Mann, 1925 represented as Triceratium castelliferum Grunow, 1888
  » Species Biddulphia circinus (Bailey) Van Heurck, 1896 represented as Zygoceros circinus var. circinus J.W. Bailey, 1854
  » Species Biddulphia condecora (Ehrenberg) Boyer, 1900 represented as Triceratium condecorum var. condecorum Ehrenberg, 1844 (1845)
  » Species Biddulphia consimilis (Grunow in Van Heurck) Boyer, 1900 represented as Triceratium consimile Grunow in Van Heurck, 1883
  » Species Biddulphia convexiuscula (Grunow in Schmidt et al.) Boyer, 1900 represented as Triceratium convexiusculum Grunow in Schmidt et al., 1890
  » Species Biddulphia cornuta (Greville) Mann, 1925 represented as Triceratium cornutum R.K.Greville †
  » Species Biddulphia costulata (Grunow in Schmidt et al.) Boyer, 1900 represented as Triceratium tumidum var. costulata Grunow in Schmidt et al., 1882
  » Species Biddulphia cuspidata (Janisch in Schmidt et al.) Mann, 1925 represented as Triceratium cuspidatum Janisch in Schmidt et al., 1885
  » Species Biddulphia distincta (Janisch in Schmidt et al.) Mann, 1925 represented as Triceratium distinctum var. distinctum Janisch in Schmidt et al., 1885
  » Species Biddulphia dubia (T.Brightwell) Cleve, 1883 represented as Pseudictyota dubium (Brightwell) P.A. Sims & D. M. Williams in Sims et al., 2018
  » Species Biddulphia elegans (Greville) Boyer, 1900 represented as Amphitetras elegans Greville, 1866
  » Species Biddulphia eulensteinii (Grunow in A. Schmidt) Grunow in Van Heurck, 1896 represented as Triceratium eulensteinii var. eulensteinii Grunow in Schmidt et al., 1882
  » Species Biddulphia fenestrata (Grove & Sturt) Grunow in Schmidt et al., 1888 represented as Auliscus fenestratus Grove & Sturt, 1887
  » Species Biddulphia fimbriata (Wallich) Mann, 1925 represented as Triceratium fimbriatum Wallich, 1858
  » Species Biddulphia fimbriata Greville, 1865 † represented as Parodontella fimbriata (Greville) D. M. Williams & P.A. Sims in Sims et al., 2018 †
  » Species Biddulphia fragilaria (Ehrenberg) Ralfs in Pritchard, 1861 represented as Denticella fragilaria Ehrenberg, 1844
  » Species Biddulphia gemina (Schmidt in Schmidt et al.) Mann, 1925 represented as Triceratium geminum Schmidt in Schmidt et al., 1882
  » Species Biddulphia grandis (Brightwell) Boyer, 1900 represented as Triceratium grande f. grande Brightwell, 1853
  » Species Biddulphia granulata Roper, 1859 † represented as Cerataulus granulata (Roper) P.A. Sims & D.M. Williams, 2018 †
  » Species Biddulphia grunowiana (Castracane) Mann, 1925 represented as Triceratium grunowianum Castracane, 1886
  » Species Biddulphia hebetata (Grunow in Van Heurck) Boyer, 1900 represented as Triceratium irregulare var. hebetata Grunow in Van Heurck, 1883
  » Species Biddulphia heilpriniana (Kain & E.A. Schultze) Boyer, 1900 represented as Triceratium heilprinianum Kain & Schultze, 1889
  » Species Biddulphia heteropora (Grunow in Van Heurck) Boyer, 1900 represented as Triceratium heteroporum Grunow in Van Heurck, 1883
  » Species Biddulphia impressa (Grunow) Mann, 1925 represented as Triceratium impressum Grunow, 1883
  » Species Biddulphia indica (Ehrenberg) Roper, 1859 represented as Denticella indica Ehrenberg, 1845
  » Species Biddulphia insignis (Greville) Mann, 1925 represented as Triceratium insigne f. insignis Greville, 1861
  » Species Biddulphia interpunctata (Grunow in Schmidt et al.) Boyer, 1900 represented as Triceratium interpunctatum Grunow in Schmidt et al., 1882
  » Species Biddulphia jucatensis (Grunow in Schmidt et al.) Boyer, 1927 represented as Triceratium jucatense Grunow in Schmidt et al., 1882
  » Species Biddulphia juncatensis (Grunow) Mann, 1925 represented as Triceratium jucatense Grunow in Schmidt et al., 1882
  » Species Biddulphia kainii (E.A. Schultze in Kain & E.A. Schultze) Boyer, 1900 represented as Triceratium kainii var. kainii Schultze in Kain & E. A. Schultze, 1889
  » Species Biddulphia lata (Greville) E. Jørgensen, 1905 represented as Triceratium latum var. latum Greville, 1865
  » Species Biddulphia longicruris Greville, 1859 represented as Hobaniella longicruris (Greville) P.A. Sims & D.M. Williams in Sims et al., 2018 (synonym)
  » Species Biddulphia luminosa (J.-J.Brun & J.A.Tempère) A.Mann represented as Triceratium luminosum Tempère & Brun in Brun & Tempère, 1889
  » Species Biddulphia madagascarensis (Grunow in Van Heurck) Mann, 1925 represented as Triceratium madagascarense Grunow in Van Heurck, 1883
  » Species Biddulphia minuta (Greville) Andrews, 1988 represented as Amphitetras minuta Greville, 1861
  » Species Biddulphia montereyi (Brightwell) Mereschkowsky, 1901 represented as Triceratium montereyi f. montereyi Brightwell, 1853
  » Species Biddulphia moronensis (Greville) T.V. Desikachary, 1989 represented as Triceratium moronense var. moronense Greville, 1865
    » Variety Biddulphia moronensis var. moronensis Cleve, 1881 (uncertain, unassessed)
    » Variety Biddulphia moronensis var. nicobarica Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Biddulphia neogradensis (Pantocsek) F.W. Mills, 1933 represented as Odontella neogradensis Pantocsek, 1886
  » Species Biddulphia nobilis (Witt) E. Jørgensen, 1905 represented as Triceratium nobile Witt, 1885
  » Species Biddulphia nobilis (Greville) Brockmann, 1928 represented as Amphitetras nobilis Greville, 1865
  » Species Biddulphia obtusa (Kützing) Ralfs, 1861 represented as Odontella obtusa Kützing, 1844
  » Species Biddulphia obtusa (Ehrenberg) Boyer, 1901 represented as Triceratium obtusum f. obtusum Ehrenberg, 1844
  » Species Biddulphia occidentalis (L.W. Bailey) Wolle, 1890 represented as Zygoceros occidentalis J.W. Bailey in L.W. Bailey, 1861
  » Species Biddulphia orbiculata (Shadbolt) Boyer, 1900 represented as Triceratium orbiculatum var. orbiculatum Shadbolt, 1854
  » Species Biddulphia ornata (Shadbolt) Castracane, 1886 represented as Amphitetras ornata var. ornata Shadbolt, 1854
  » Species Biddulphia ovalis (Schmidt in Schmidt et al.) Boyer, 1900 represented as Cerataulus ovalis Schmidt in Schmidt et al., 1888
  » Species Biddulphia pacifica (Grunow in Schmidt et al.) Mann, 1907 represented as Cerataulus pacificus Grunow in Schmidt et al., 1888
  » Species Biddulphia papillata (Grove & Sturt) Mann, 1907 represented as Triceratium papillatum var. papillatum Grove & Sturt, 1887
  » Species Biddulphia parvula (Janisch & Rabenhorst) Boyer, 1900 represented as Amphitetras parvula Janisch & Rabenhorst, 1863
  » Species Biddulphia pentacrinus (Ehrenberg) Boyer, 1901 represented as Amphipentas pentacrinus Ehrenberg, 1841 †
  » Species Biddulphia permagna (Janisch) Van Heurck, 1909 represented as Triceratium permagnum Janisch, 1888
  » Species Biddulphia peruviana Grunow in Van Heurck, 1882 † represented as Ralfsiella peruviana (Grunow in Van Heurck) P.A. Sims, D. M. Williams & M. Ashworth, 2018 †
  » Species Biddulphia petitiana (Leuduger-Fortmorel) Mann, 1925 represented as Triceratium petitianum Leuduger-Fortmorel, 1898
  » Species Biddulphia petitii (Leuduger-Fortmorel) Mann, 1925 represented as Cerataulus petitii Leuduger-Fortmorel, 1892
  » Species Biddulphia plana Schmidt in Schmidt et al., 1888 represented as Pseudictyota plana (A. Schmidt) P.A. Sims & D. M. Williams in Sims et al., 2018
  » Species Biddulphia polymera (Ehrenberg) Ralfs in Pritchard, 1861 represented as Denticella polymera Ehrenberg, 1844 (1845)
  » Species Biddulphia polymorpha (Montagne) Mann, 1925 represented as Isthmia polymorpha Montagne, 1840
    » Forma Biddulphia polymorpha f. belgicae (M. Peragallo) M. Peragallo, 1924 represented as Biddulphia belgicae var. belgicae M. Peragallo, 1921
    » Forma Biddulphia polymorpha f. lata (M. Peragallo) M. Peragallo, 1924 represented as Biddulphia belgicae var. lata M. Peragallo, 1921
    » Forma Biddulphia polymorpha f. ottomuellerii (Van Heurck) M. Peragallo, 1924 represented as Biddulphia ottomuelleri var. ottomuelleri Van Heurck, 1909
    » Forma Biddulphia polymorpha f. rotunda (Van Heurck) M. Peragallo, 1924 represented as Biddulphia ottomuelleri var. rotunda Van Heurck, 1909
    » Variety Biddulphia polymorpha var. petiti (Leuduger-Fortmorel) F.W. Mills, 1933 represented as Cerataulus petitii Leuduger-Fortmorel, 1892
    » Variety Biddulphia polymorpha var. polymorpha (Montagne) Wolle, 1890 represented as Isthmia polymorpha Montagne, 1840
    » Variety Biddulphia polymorpha var. vanheurckii (M. Peragallo) M. Peragallo, 1924 represented as Biddulphia vanheurckii f. vanheurckii M. Peragallo, 1921
  » Species Biddulphia punctata (Brightwell) Van Heurck, 1896 represented as Triceratium punctatum f. punctatum Brightwell, 1856
  » Species Biddulphia quadricornis (Grunow) Boyer, 1901 represented as Zygoceros quadricornis Grunow in Van Heurck, 1883
  » Species Biddulphia radiata W.Smith represented as Eupodiscus radiatus W. Smith, 1853
  » Species Biddulphia radiata (Brightwell) Grunow in Van Heurck, 1883 represented as Triceratium radiatum var. radiatum Brightwell, 1856
  » Species Biddulphia reticulata Roper, 1859 represented as Pseudictyota reticulata (Roper) P.A. Sims & D. M. Williams in Sims et al., 2018
    » Forma Biddulphia reticulata f. trigona (Grunow) Grove & Sturt, 1887 represented as Biddulphia reticulata var. trigona Grunow in Van Heurck, 1882
    » Variety Biddulphia reticulata var. dubia (Brightwell) Cleve, 1883 represented as Pseudictyota dubium (Brightwell) P.A. Sims & D. M. Williams in Sims et al., 2018
    » Variety Biddulphia reticulata var. trigona (Schmidt in Schmidt et al.) Tempère & Peragallo, 1911 represented as Biddulphia reticulata f. trigona Schmidt in Schmidt et al., 1885
    » Forma Biddulphia reticulata f. reticulata Roper, 1859 (uncertain, unassessed)
    » Forma Biddulphia reticulata f. triangularis Grunow in Cleve & Möller, 1882 (uncertain, unassessed)
    » Forma Biddulphia reticulata f. trigona Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. beta Roper, 1859 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. inermis Castracane, 1886 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. rawsonii Wood, 1961 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. rhombica Mereschkowsky, 1902 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. subspinosa Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. trigona Grunow in Van Heurck, 1882 (uncertain, unassessed)
    » Variety Biddulphia reticulata var. typica Cleve-Euler, 1951 (uncertain, unassessed)
  » Species Biddulphia reticulum (Ehrenberg) Boyer, 1900 represented as Triceratium reticulum f. reticulum Ehrenberg, 1844
  » Species Biddulphia rustica (Mann) Boyer, 1927 represented as Trigonium rusticum Mann, 1907
  » Species Biddulphia ruthenica Witt, 1885 † represented as Parodontella ruthenica (Witt) D M.Williams & P.A.Sims in Sims et al., 2018 † (homotypic synonym)
  » Species Biddulphia sculpta (Shadbolt) Van Heurck, 1885 represented as Triceratium sculptum var. sculptum Shadbolt, 1854
    » Variety Biddulphia sculpta var. petropolitana Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Biddulphia secedens (Schmidt in Schmidt et al.) Mann, 1925 represented as Triceratium secedens Schmidt in Schmidt et al., 1888
  » Species Biddulphia sentum (Witt in Schmidt et al.) Van Heurck, 1909 represented as Triceratium sentum f. sentum Witt in Schmidt et al., 1890
  » Species Biddulphia setigera (J.W. Bailey) Mann, 1907 represented as Triceratium setigerum J.W.Bailey, 1854
  » Species Biddulphia seychellensis (Grunow in Van Heurck) F.W. Mills, 1883 represented as Triceratium seychellense Grunow in Van Heurck, 1883
  » Species Biddulphia shadboltiana (Greville) Mann, 1907 represented as Triceratium shadboltianum f. shadboltianum Greville, 1862
  » Species Biddulphia smithii (Ralfs in Pritchard) Van Heurck, 1885 represented as Ralfsiella smithii (Ralfs in Pritchard) P.A. Sims, D. M. Williams & Ashworth, 2018
  » Species Biddulphia spinosa (J.W.Bailey) Boyer, 1927 represented as Triceratium spinosum f. spinosum J.W. Bailey, 1844
    » Variety Biddulphia spinosa var. hillabyana Brun, 1896 (uncertain, unassessed)
    » Variety Biddulphia spinosa var. spinosa Greville, 1865 (uncertain, unassessed)
  » Species Biddulphia spinulosa (Grunow in Schmidt et al.) Mann, 1925 represented as Triceratium spinulosum Grunow in Schmidt et al., 1885
  » Species Biddulphia subrotundata (Schmidt in Schmidt et al.) Boyer, 1900 represented as Triceratium subrotundatum f. subrotundatum Schmidt in Schmidt et al., 1886
  » Species Biddulphia surirella (Ehrenberg) Rabenhorst, 1864 represented as Zygoceros surirella Ehrenberg, 1840
  » Species Biddulphia tabellaria (Brightwell) Boyer, 1900 represented as Triceratium tabellarium var. tabellarium Brightwell, 1856
  » Species Biddulphia temperei (Brun) Mann, 1925 represented as Triceratium temperei Brun in Brun, Bergon et al., 1890
  » Species Biddulphia tenuicornis Greville, 1865 † represented as Parodontella tenuicornis (Greville) D. M. Williams & P.A. Sims in Sims et al., 2018 †
  » Species Biddulphia tessellata (Greville) Boyer, 1900 represented as Triceratium tessellatum Greville, 1861
  » Species Biddulphia testudo (Brun in Brun & Tempère) Boyer, 1900 represented as Tabulina testudo Brun in Brun & Tempère, 1889 †
  » Species Biddulphia thumii (Schmidt in Schmidt et al.) Boyer, 1900 represented as Cerataulus thumii Schmidt in Schmidt et al., 1888
  » Species Biddulphia tripos (Cleve) Mann, 1925 represented as Triceratium tripos f. tripos Cleve, 1881
  » Species Biddulphia trisulca (J.W. Bailey ex Ralfs in Pritchard) Boyer, 1900 represented as Triceratium trisulcum var. trisulcum J.W. Bailey ex Ralfs in Pritchard, 1861
  » Species Biddulphia tumescens (Castracane) Mann, 1925 represented as Triceratium tumescens Castracane, 1886
  » Species Biddulphia turgida (Ehrenberg) W.Smith, 1856 represented as Denticella turgida Ehrenberg, 1840 (alternate representation)
  » Species Biddulphia varians (Lauder) Lebour, 1930 represented as Bacteriastrum varians f. varians Lauder, 1864 (alternate representation)
  » Species Biddulphia vesiculosa (Agardh) Kützing, 1833 represented as Diatoma vesiculosum Agardh, 1824 (alternate representation)
  » Species Biddulphia weissei (Grunow in Schmidt et al.) E. Jørgensen, 1905 represented as Triceratium weissii Grunow in A.Schmidt, 1886 † (alternate representation)
  » Species Biddulphia weissii (Grunow in Schmidt et al.) Van Heurck, 1909 represented as Triceratium weissii Grunow in A.Schmidt, 1886 † (alternate representation)
  » Species Biddulphia alternans (Bailey) Van Heurck, 1885 accepted as Trigonium alternans (Bailey) A.Mann, 1907 (unaccepted, synonym)
  » Species Biddulphia arctica (Brightwell) Boyer, 1901 accepted as Trigonium arcticum (Brightwell) Cleve, 1868 (unaccepted, synonym)
    » Forma Biddulphia arctica f. arctica (Brightwell) Boyer, 1900 represented as Triceratium arcticum f. arcticum Brightwell, 1853
    » Forma Biddulphia arctica f. balaena (Ehrenberg) E. Jørgensen, 1905 represented as Zygoceros balaena Ehrenberg, 1853
    » Forma Biddulphia arctica f. interjecta (Schmidt in Schmidt et al.) F.W. Mills, 1933 represented as Triceratium interjectum f. interjectum Schmidt in Schmidt et al., 1891
    » Forma Biddulphia arctica f. peragalli ‘Schmidt' Van Heurck represented as Triceratium peragallii f. peragallii Brun in Schmidt et al., 1891
    » Variety Biddulphia arctica var. antarctica (Cleve & Grunow) F.W. Mills, 1933 represented as Triceratium arcticum var. antarctica Grunow
    » Variety Biddulphia arctica var. arctica (Brightwell) E. Jørgensen, 1905 represented as Triceratium arcticum f. arcticum Brightwell, 1853
    » Variety Biddulphia arctica var. californica (Grunow in Schmidt et al.) Boyer, 1900 represented as Triceratium arcticum f. californica Grunow in Schmidt et al., 1882
    » Variety Biddulphia arctica var. campeachiana (Grunow in Van Heurck) Boyer, 1900 represented as Triceratium arcticum f. campechiana Grunow in Van Heurck, 1883
    » Variety Biddulphia arctica var. japonica (Grunow in Schmidt et al.) F.W. Mills, 1933 represented as Triceratium arcticum var. japonica Grunow in Schmidt et al., 1882
    » Variety Biddulphia arctica var. kerguelensis (Grunow in Cleve & Grunow) Boyer, 1900 represented as Triceratium arcticum var. kerguelense Grunow in Cleve & Grunow, 1880
    » Variety Biddulphia arctica var. montereyi (Brightwell) Boyer, 1900 represented as Triceratium montereyi f. montereyi Brightwell, 1853
    » Variety Biddulphia arctica var. neapolitana (Grunow in Cleve & Grunow) F.W. Mills, 1933 represented as Triceratium arcticum var. neapolitana Grunow in Cleve & Grunow, 1880
    » Variety Biddulphia arctica var. quadrangularis (Greville) Boyer, 1900 represented as Triceratium quadrangulare Greville, 1865
    » Variety Biddulphia arctica var. quinquelobatum (Greville) F.W. Mills, 1933 represented as Triceratium quinquelobatum Greville, 1866
    » Variety Biddulphia arctica var. robusta (Truan y Luard & Witt) F.W. Mills, 1933 represented as Triceratium arcticum var. robusta Truan y Luard & Witt, 1888
    » Variety Biddulphia arctica var. samoensis (Cleve & Grunow) F.W. Mills, 1933 represented as Triceratium arcticum var. samoensis Grunow
    » Variety Biddulphia arctica var. spitzbergensis (Grunow in Cleve & Grunow) F.W. Mills, 1933 represented as Triceratium arcticum var. spitzbergensis Grunow in Cleve & Grunow, 1880
    » Variety Biddulphia arctica var. tetragona (Grunow) Mereschkowsky, 1901 represented as Triceratium arcticum var. tetragona Grunow in Cleve & Grunow, 1880
    » Variety Biddulphia arctica var. pentagona Boyer, 1900 (uncertain, unassessed)
    » Variety Biddulphia arctica var. sexangulata Boyer, 1900 (uncertain, unassessed)
  » Species Biddulphia aurita (Lyngbye) Brébisson, 1838 accepted as Odontella aurita (Lyngbye) C.Agardh, 1832 (unaccepted, synonym)
  » Species Biddulphia bailey W. Smith, 1856 accepted as Biddulphia mobiliensis (J.W.Bailey) Grunow, 1882 (unaccepted)
  » Species Biddulphia curvinervia C.S.Boyer, 1922 † accepted as Entogoniopsis curvinervia (C.S.Boyer) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Biddulphia eximia (Grunow) Laporte & Lefébure, 1930 † accepted as Syringidium eximium A.Grunow in H.Van Heurck, 1883 † (unaccepted)
  » Species Biddulphia favus (Ehrenberg) Van Heurck, 1885 accepted as Triceratium favus Ehrenberg, 1839 (unaccepted)
  » Species Biddulphia formosa (Brightwell) E. Jörgensen, 1905 accepted as Trigonium formosum (Brightwell) Cleve, 1867 (unaccepted, synonym)
  » Species Biddulphia majus (Grove & Sturt) † accepted as Entogoniopsis major J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted, Nom. invalid.)
  » Species Biddulphia mobiliensis (J.W.Bailey) Grunow, 1882 accepted as Trieres mobiliensis (J.W.Bailey) Ashworth & E.C.Theriot in Ashworth, Nakov & E.C.Theiriot, 2013 (unaccepted, synonym)
  » Species Biddulphia multicornis Grunow, 1882 † accepted as  † (unaccepted)
    » Variety Biddulphia multicornis var. multicornis Grunow in Van Heurck, 1882 (uncertain, unassessed)
    » Variety Biddulphia multicornis var. templum Brun in Schmidt et al., 1892 (uncertain, unassessed)
  » Species Biddulphia picturatum (Greville) Taylor, 1970 accepted as Triceratium picturatum R.K.Greville, 1866 † (unaccepted)
  » Species Biddulphia pulchella S.F.Gray, 1821 accepted as Biddulphia biddulphiana (J.E.Smith) Boyer, 1900 (unaccepted, synonym)
  » Species Biddulphia regia (Schultze) Ostenfeld, 1908 accepted as Trieres regia (M.Schultze) M.P.Ashworth & E.C.Theriot, 2013 (unaccepted, synonym)
  » Species Biddulphia riedyi G D.Hanna & W.M.Grant, 1926 † accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 (unaccepted)
  » Species Biddulphia roperiana Greville, 1859 accepted as Biddulphia obtusa (Kützing) Ralfs, 1861 (unaccepted, synonym)
  » Species Biddulphia semicircularis (Brightwell) C.S.Boyer accepted as Euodiella semicircularis (Brightwell) P.A.Sims, 2000 † (unaccepted, synonym)
  » Species Biddulphia stokesiana (R.K.Greville) A.Mann, 1925 † accepted as Entogoniopsis stokesiana (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted, synonym)
  » Species Biddulphia tabellarium (T.Brightwell) C.S.Boyer, 1900 † accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 (unaccepted)
  » Species Biddulphia abjecta Mann, 1925 (unassessed)
  » Species Biddulphia abyssorum (unassessed)
  » Species Biddulphia acanthoceros Forti, 1913 (unassessed)
  » Species Biddulphia advena VanLandingham, 1968 (unassessed)
  » Species Biddulphia africana Leuduger-Fortmorel, 1898 (unassessed)
  » Species Biddulphia agulhas Karsten, 1905 (unassessed)
  » Species Biddulphia alaskiensis Mann, 1907 (unassessed)
  » Species Biddulphia angulata Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia antarctica ‘Cleve' Mills (unassessed)
  » Species Biddulphia antediluviana ‘Azpeitia y Moros' Mills, 1911 (unassessed)
  » Species Biddulphia anthropomorpha Van Heurck, 1909 (unassessed)
  » Species Biddulphia antiqua Truan y Luard & Witt, 1888 (unassessed)
  » Species Biddulphia apiculata Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia areolata Hajós, 1968 (unassessed)
  » Species Biddulphia argus Boyer, 1898 (unassessed)
  » Species Biddulphia armata Leuduger-Fortmorel, 1879 (unassessed)
  » Species Biddulphia astrolabensis Hendey, 1937 (unassessed)
  » Species Biddulphia auliscoformis Strelnikova, 1964 (unassessed)
  » Species Biddulphia australis Montagne, 1842 (unassessed)
  » Species Biddulphia azorica J.Pavillard, 1908 (unassessed)
  » Species Biddulphia baileyii W. Smith, 1856 (unassessed)
  » Species Biddulphia baldjikii Girard (unassessed)
  » Species Biddulphia baltzoi Hanna, 1970 (unassessed)
  » Species Biddulphia barbadensis Greville, 1866 (unassessed)
  » Species Biddulphia bicorne Cleve, 1878 (unassessed)
  » Species Biddulphia bicornis Cleve, 1878 (unassessed)
  » Species Biddulphia bifasciata Wigand, 1860 (unassessed)
  » Species Biddulphia bifenestra Brun, 1896 (unassessed)
  » Species Biddulphia bipons ‘Ehrenberg' Mills, 1933 (unassessed)
  » Species Biddulphia birostrata Grunow, 1863 (unassessed)
  » Species Biddulphia birostrum Brun, 1891 (unassessed)
  » Species Biddulphia blanda Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia boryana ‘Pantocsek' Mills, 1933 (unassessed)
  » Species Biddulphia brevis Ehrenberg, 1845 (unassessed)
  » Species Biddulphia brittoniana C.H.Kain & E.A.Schultze, 1889 † (unassessed)
  » Species Biddulphia calamus Tempère & Brun, 1889 † (unassessed)
    » Variety Biddulphia calamus var. glabra Tsumura, 1969 (uncertain, unassessed)
  » Species Biddulphia capuzina Schmidt, 1888 (unassessed)
  » Species Biddulphia caraibica Truan y Luard & Witt, 1888 (unassessed)
  » Species Biddulphia catenata Schussnig, 1915 (unassessed)
  » Species Biddulphia cayennensis Ehrenberg, 1854 (unassessed)
  » Species Biddulphia centralis Boyer, 1922 (unassessed)
  » Species Biddulphia challengerii Tsumura, 1969 (unassessed)
  » Species Biddulphia chinensis Greville, 1866 (unassessed)
  » Species Biddulphia cingulata Mann, 1925 (unassessed)
  » Species Biddulphia cirrus Ehrenberg, 1847 (unassessed)
  » Species Biddulphia clavulata Ehrenberg, 1861 (unassessed)
  » Species Biddulphia clypeolus Boyer, 1922 (unassessed)
  » Species Biddulphia concava Mann, 1925 (unassessed)
  » Species Biddulphia concinnus Van Heurck, 1896 (unassessed)
  » Species Biddulphia connecta Wood, 1963 (unassessed)
  » Species Biddulphia contorta Karsten, 1905 (unassessed)
  » Species Biddulphia convexa Mann, 1937 (unassessed)
  » Species Biddulphia cookiana Kain & Schultze, 1889 (unassessed)
  » Species Biddulphia cornigera Mann, 1925 (unassessed)
  » Species Biddulphia cornucaprae Brun, 1894 (unassessed)
  » Species Biddulphia cornuta Brun, 1894 (unassessed)
  » Species Biddulphia corpulenta Greville, 1865 (unassessed)
  » Species Biddulphia coruscans Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia costata Boyer, 1922 (unassessed)
  » Species Biddulphia crassiuscula Pantocsek, 1892 (unassessed)
  » Species Biddulphia crenulata Walker in Walker & Chase, 1886 (unassessed)
  » Species Biddulphia cretacea Hajós & Stradner, 1974 (unassessed)
  » Species Biddulphia cretacea Brun, 1896 (unassessed)
  » Species Biddulphia cristata Grunow in Van Heurck, 1882 (unassessed)
  » Species Biddulphia cruciata Petit, 1908 (unassessed)
  » Species Biddulphia culcitella Mann, 1907 (unassessed)
  » Species Biddulphia curvata Hendey & Sims, 1984 (unassessed)
  » Species Biddulphia cycloides Mann, 1925 (unassessed)
  » Species Biddulphia cylindrata Wood, Crosby & Cassie, 1959 (unassessed)
  » Species Biddulphia cylindrus Weisse, 1867 (unassessed)
  » Species Biddulphia damanuensis Christian, 1888 (unassessed)
  » Species Biddulphia decipiens Grunow in Van Heurck, 1882 (unassessed)
  » Species Biddulphia decorata Greville, 1865 (unassessed)
  » Species Biddulphia decumana Schmidt in Schmidt et al., 1892 (unassessed)
  » Species Biddulphia decussata Strelnikova, 1965 (unassessed)
  » Species Biddulphia deodora Hanna & Grant, 1926 (unassessed)
  » Species Biddulphia discursa Mann, 1925 (unassessed)
  » Species Biddulphia dissipata Grove & Sturt, 1887 (unassessed)
  » Species Biddulphia divisa Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia echinata Kitton, 1888 (unassessed)
  » Species Biddulphia echinulata Jousé in Proschkina-Lavrenko, 1949 (unassessed)
  » Species Biddulphia ecornuta Strelnikova, 1974 (unassessed)
  » Species Biddulphia edwardsii Febiger ex Grunow, 1882 (unassessed)
  » Species Biddulphia elaborata Grove & Sturt, 1886 (unassessed)
  » Species Biddulphia elesdiana Pantocsek, 1889 (unassessed)
  » Species Biddulphia elongata Meneghini in Kützing, 1849 (unassessed)
  » Species Biddulphia exacta Mann, 1925 (unassessed)
  » Species Biddulphia expedita Janisch in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia extensa Mann, 1907 (unassessed)
  » Species Biddulphia falcata Boyer, 1922 (unassessed)
  » Species Biddulphia fistulosa Pantocsek, 1892 (unassessed)
  » Species Biddulphia flos (Ehrenberg) Grunow (unassessed)
    » Variety Biddulphia flos var. hebetata Grunow, 1884 (uncertain, unassessed)
  » Species Biddulphia fortiana Tempère in Forti, 1913 (unassessed)
  » Species Biddulphia fossa Grove & Sturt, 1887 (unassessed)
  » Species Biddulphia fractosa Mann, 1925 (unassessed)
  » Species Biddulphia fragilis Bone & Gosden, 1967 (unassessed)
  » Species Biddulphia frauenfeldii Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia frickei Van Heurck, 1909 (unassessed)
  » Species Biddulphia fulva Boyer, 1922 (unassessed)
  » Species Biddulphia gallapagensis Cleve, 1881 (unassessed)
  » Species Biddulphia gibbosa (unassessed)
  » Species Biddulphia gigantea Greville, 1864 (unassessed)
  » Species Biddulphia gigas Ehrenberg, 1844 (unassessed)
  » Species Biddulphia gladiorum A.Mann, 1907 (unassessed)
  » Species Biddulphia grandicornis Tsumura, 1969 (unassessed)
  » Species Biddulphia grovei Pantocsek, 1892 (unassessed)
  » Species Biddulphia gruendleri Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia gurowii Pantocsek, 1892 (unassessed)
  » Species Biddulphia hamata ‘Pantocsek' De Toni, 1886 (unassessed)
    » Forma Biddulphia hamata f. minor ‘Pantocsek' De Toni, 1886 (uncertain, unassessed)
  » Species Biddulphia heibergii H.F.Van Heurck (unassessed)
  » Species Biddulphia hemitropa L.W. Bailey, 1862 (unassessed)
  » Species Biddulphia heteroceros Grunow in Van Heurck, 1882 (unassessed)
  » Species Biddulphia hexagonalis Boyer, 1922 (unassessed)
  » Species Biddulphia hyalina Schröder, 1906 (unassessed)
  » Species Biddulphia hyalina Peragallo in Tempère & Peragallo, 1909 (unassessed)
  » Species Biddulphia immanis Boyer, 1922 (unassessed)
  » Species Biddulphia imperialis Walker in Walker & Chase, 1886 (unassessed)
  » Species Biddulphia impressa Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia includens Ehrenberg, 1855 (unassessed)
  » Species Biddulphia informis Mann, 1925 (unassessed)
  » Species Biddulphia infundibuloides Desikachary, Gowthaman & Latha, 1987 (unassessed)
  » Species Biddulphia interrupta Boyer, 1898 (unassessed)
  » Species Biddulphia inusitata Hohn & Hellerman, 1966 accepted as Pleurosira inusitata (Hohn & Hellerman) Desianti & Potapova, 2015 (unassessed)
  » Species Biddulphia inversa ‘Mann' Mills, 1925 (unassessed)
  » Species Biddulphia inverta Mann, 1925 (unassessed)
  » Species Biddulphia irregulare (unassessed)
    » Variety Biddulphia irregulare var. hebetata Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Biddulphia irregulare var. irregulare Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Biddulphia japonica Castracane, 1886 (unassessed)
  » Species Biddulphia japonica Pantocsek, 1892 (unassessed)
  » Species Biddulphia jimboi Pantocsek, 1903 (unassessed)
  » Species Biddulphia johnsoniana Greville, 1866 (unassessed)
  » Species Biddulphia jordani Hanna & Grant, 1926 (unassessed)
  » Species Biddulphia keeleyi Boyer, 1898 (unassessed)
  » Species Biddulphia kemnae Van Heurck, 1909 (unassessed)
  » Species Biddulphia lacunosa Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia laevis Ehrenberg, 1843 (unassessed)
  » Species Biddulphia lata Grove & Sturt, 1886-1887 (unassessed)
  » Species Biddulphia levigata Sheshukova-Poretskaya, 1967 (unassessed)
  » Species Biddulphia levis Ehrenberg, 1843 (unassessed)
  » Species Biddulphia litigiosa Van Heurck, 1909 (unassessed)
  » Species Biddulphia lóczyi Pantocsek, 1889 (unassessed)
  » Species Biddulphia longaeva Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia longicornis Skvortzow, 1931 (unassessed)
  » Species Biddulphia longispina Grunow in Van Heurck, 1882 (unassessed)
  » Species Biddulphia lunaris ‘Auctorum' according to Mills (unassessed)
  » Species Biddulphia lunata Ehrenberg, 1844 (unassessed)
  » Species Biddulphia macdonaldii Norman in Pritchard, 1861 (unassessed)
  » Species Biddulphia mammosa Greville, 1866 (unassessed)
  » Species Biddulphia manca Janisch in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia media H. Peragallo in Tempère & Peragallo, 1909 (unassessed)
  » Species Biddulphia mediterranensis ‘Grunow' Mills (unassessed)
  » Species Biddulphia membranacea Cleve, 1878 (unassessed)
  » Species Biddulphia minima Schiller in Hustedt, 1930 (unassessed)
  » Species Biddulphia minutissima Greville, 1886 (unassessed)
  » Species Biddulphia miraculosa Brun in Schmidt et al., 1892 (unassessed)
  » Species Biddulphia mobiliensis sensu Gran, 1905 (unassessed)
  » Species Biddulphia moholensis Schrader, 1974 (unassessed)
  » Species Biddulphia mollis Mann, 1937 (unassessed)
  » Species Biddulphia murrayana Hendey, 1939 (unassessed)
  » Species Biddulphia mythica Tsumura, 1969 (unassessed)
  » Species Biddulphia nankoorensis ‘Grunow in Van Heurck' M. Peragallo, 1897 (unassessed)
  » Species Biddulphia nervata Boyer, 1922 (unassessed)
  » Species Biddulphia nitida Greville, 1865 (unassessed)
  » Species Biddulphia novaezealandiae Wise, 1952 (unassessed)
  » Species Biddulphia oamaruensis Grove & Sturt, 1886 (unassessed)
  » Species Biddulphia obliquata (J.E. Smith) Gray, 1821 (unassessed)
  » Species Biddulphia ottomuelleri (unassessed)
  » Species Biddulphia palpebralis Forti in Tempère & Peragallo, 1914 (unassessed)
  » Species Biddulphia pantocsekites VanLandingham, 1968 (unassessed)
  » Species Biddulphia paradoxa Petit, 1908 (unassessed)
  » Species Biddulphia parallela Castracane, 1886 (unassessed)
    » Variety Biddulphia parallela var. sparsa Van Heurck (uncertain, unassessed)
  » Species Biddulphia parallela ‘Ehrenberg' Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia patagoniana Frenguelli, 1941 (unassessed)
  » Species Biddulphia patagonica Ehrenberg, 1854 (unassessed)
  » Species Biddulphia patera Barker & Meakin, 1949 (unassessed)
  » Species Biddulphia pedalis Grove & Sturt, 1887 (unassessed)
  » Species Biddulphia pelagica J.L.B.Schröder, 1908 (unassessed)
  » Species Biddulphia pellucida Castracane, 1886 (unassessed)
  » Species Biddulphia penitens Hanna & Grant, 1926 (unassessed)
  » Species Biddulphia peragalli (unassessed)
  » Species Biddulphia peragalloi Leuduger-Fortmorel, 1898 (unassessed)
  » Species Biddulphia permagna Pantocsek, 1889 (unassessed)
  » Species Biddulphia perplexa Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia perpusilla J.W. Bailey Collection according to Chase, 1885 (unassessed)
  » Species Biddulphia petrolia Hanna, 1927 (unassessed)
  » Species Biddulphia phallus Leuduger-Fortmorel, 1898 (unassessed)
  » Species Biddulphia plicata Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia podagrosa Greville, 1866 (unassessed)
  » Species Biddulphia polyacanthos Brun, 1891 (unassessed)
  » Species Biddulphia polymorpha Manguin, 1915 (unassessed)
  » Species Biddulphia primordinalis Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia pulchella sensu Möller, 1892 (unassessed)
    » Forma Biddulphia pulchella f. bifasciata (Wigand) Rabenhorst, 1864 represented as Biddulphia bifasciata Wigand, 1860
    » Forma Biddulphia pulchella f. quinquelocularis (Kützing) Rabenhorst, 1864 represented as Biddulphia quinquelocularis Kützing, 1844
    » Forma Biddulphia pulchella f. transversa (Wigand) Rabenhorst, 1864 represented as Biddulphia transversa Wigand, 1860
    » Forma Biddulphia pulchella f. trilocularis (Kützing) Rabenhorst, 1864 represented as Biddulphia trilocularis Kützing, 1844
    » Forma Biddulphia pulchella f. unifasciata (Wigand) Rabenhorst, 1864 represented as Biddulphia unifasciata Wigand, 1860
    » Forma Biddulphia pulchella f. pulchella S.F. Gray, 1821 (uncertain, unassessed)
    » Forma Biddulphia pulchella f. quinquelocularis according to Mills (uncertain, unassessed)
    » Variety Biddulphia pulchella var. moronensis Forti in Tempère & Peragallo, 1914 (uncertain, unassessed)
  » Species Biddulphia pulverulenta Mann, 1937 (unassessed)
  » Species Biddulphia pumila Castracane, 1886 (unassessed)
  » Species Biddulphia punctata Grove & Sturt ex Brun, 1896 (unassessed)
  » Species Biddulphia pustulata Brun, 1891 (unassessed)
  » Species Biddulphia pygmea Mann, 1925 (unassessed)
  » Species Biddulphia quadrans Boyer, 1922 (unassessed)
  » Species Biddulphia quinquelocularis Kützing, 1844 (unassessed)
  » Species Biddulphia radialis Andrews, 1986 (unassessed)
  » Species Biddulphia radiopunctata ‘Mann' according to Mills, 1933 (unassessed)
  » Species Biddulphia radiosoreticulata Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia repleta (unassessed)
  » Species Biddulphia retiformis Mann, 1925 (unassessed)
  » Species Biddulphia reversa Grove & Sturt, 1887 (unassessed)
  » Species Biddulphia robusta Pantocsek, 1889 (unassessed)
  » Species Biddulphia rossica Pantocsek, 1889 (unassessed)
  » Species Biddulphia rotunda M. Peragallo in Tempère & Peragallo, 1908 (unassessed)
  » Species Biddulphia rotundata Janisch, 1888 (unassessed)
  » Species Biddulphia rudis Mann, 1925 (unassessed)
  » Species Biddulphia russica Pantocsek, 1889 (unassessed)
  » Species Biddulphia sanpedroana Mereschkowsky, 1900 (unassessed)
  » Species Biddulphia sansibarica A. Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia saratoviana Pantocsek, 1889 (unassessed)
  » Species Biddulphia schroederiana Schüssnig, 1915 (unassessed)
  » Species Biddulphia scitula Mann, 1925 (unassessed)
  » Species Biddulphia scutellum Mann, 1907 (unassessed)
  » Species Biddulphia scutum Bone & Gosden, 1967 (unassessed)
  » Species Biddulphia separanda Janisch in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia septemlocularis Kützing, 1844 (unassessed)
  » Species Biddulphia seticulosa Grunow, 1882 (unassessed)
  » Species Biddulphia seychellensis Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia shulzei Boyer, 1898 (unassessed)
  » Species Biddulphia simplex Mereschkowsky, 1900 (unassessed)
  » Species Biddulphia sinensis Greville, 1866 (unassessed)
  » Species Biddulphia sinuata Greville, 1865 (unassessed)
  » Species Biddulphia sparsepunctata Hajós in Hajós & Stradner, 1974 (unassessed)
  » Species Biddulphia spicata Boyer, 1922 (unassessed)
  » Species Biddulphia stipitata (J. E. Smith) Gray, 1821 (unassessed)
  » Species Biddulphia striata Karsten, 1905 (unassessed)
  » Species Biddulphia striolata (Ehrenberg) (unassessed)
  » Species Biddulphia sturtii Wise, 1952 (unassessed)
  » Species Biddulphia subaequa Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Biddulphia subjuncta Mann, 1907 (unassessed)
  » Species Biddulphia sublaevis Grunow in Van Heurck, 1882 (unassessed)
  » Species Biddulphia suborbiculata J.A.Long, D.P.Fuge & J.Smith, 1949 † (unassessed)
  » Species Biddulphia subquadrata Boyer, 1922 (unassessed)
  » Species Biddulphia subsalsa Lemmermann, 1907 (unassessed)
  » Species Biddulphia suspecta M. Peragallo, 1924 (unassessed)
  » Species Biddulphia suzuensis Ichikawa in Ichikawa, Fuji & Bachmann, 1964 (unassessed)
  » Species Biddulphia szurdokpuespoekiensis Hajós, 1968 (unassessed)
  » Species Biddulphia tabellariaeformis Forti, 1913 (unassessed)
  » Species Biddulphia tahitiensis Ricard, 1975 (unassessed)
  » Species Biddulphia tenera Strelnikova, 1974 (unassessed)
  » Species Biddulphia tenera Grove & Sturt, 1887 (unassessed)
  » Species Biddulphia tentaculifera Cleve, 1881 (unassessed)
  » Species Biddulphia tenuis L.W. Bailey, 1861 (unassessed)
  » Species Biddulphia titiana Grunow in Van Heurck, 1883 (unassessed)
  » Species Biddulphia tortura Hendey & Sims, 1984 (unassessed)
  » Species Biddulphia translucida Van Heurck, 1909 (unassessed)
  » Species Biddulphia transversa Wigand, 1860 (unassessed)
  » Species Biddulphia tridentata ‘Weisse' according to Hustedt, 1930 (unassessed)
  » Species Biddulphia tridentata Weisse, 1854 (unassessed)
  » Species Biddulphia tridentula Ehrenberg, 1843 (unassessed)
  » Species Biddulphia triloba Sheshukova-Poretskaya V.S., 1967 (unassessed)
  » Species Biddulphia trilocularis Kützing, 1844 (unassessed)
  » Species Biddulphia trinacria L.W. Bailey, 1861 (unassessed)
  » Species Biddulphia tripartita (Grunow) Van Heurck (unassessed)
  » Species Biddulphia trisinua Mann, 1925 (unassessed)
  » Species Biddulphia tschestnovii Pantocsek, 1892 (unassessed)
  » Species Biddulphia tubulosa Brun, 1891 (unassessed)
  » Species Biddulphia turrigera Mann, 1925 (unassessed)
  » Species Biddulphia uncinata ‘Schmidt in Schmidt et al.' Mills, 1933 (unassessed)
  » Species Biddulphia undulata Long, Fuge & Smith, 1946 (unassessed)
  » Species Biddulphia undulosa Mann, 1925 (unassessed)
  » Species Biddulphia unifasciata Wigand, 1860 (unassessed)
  » Species Biddulphia ursina Ehrenberg, 1844 (unassessed)
  » Species Biddulphia vanheurckii (unassessed)
    » Forma Biddulphia vanheurckii f. spinosa M. Peragallo, 1921 (uncertain, unassessed)
    » Forma Biddulphia vanheurckii f. vanheurckii M. Peragallo, 1921 (uncertain, unassessed)
  » Species Biddulphia vasta Pantocsek, 1889 (unassessed)
  » Species Biddulphia venosa (unassessed)
    » Variety Biddulphia venosa var. venosa Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Biddulphia venulosa Barker & Meakin, 1949 (unassessed)
  » Species Biddulphia verrucosa Boyer, 1898 (unassessed)
  » Species Biddulphia virgata Grove & Sturt, 1886 (unassessed)
  » Species Biddulphia vitrea Brun, 1891 (unassessed)
  » Species Biddulphia vittata Grove & Sturt, 1887 (unassessed)
  » Species Biddulphia voigtii Meister, 1932 (unassessed)
  » Species Biddulphia weissflogii Grunow, 1882 (unassessed)
    » Forma Biddulphia weissflogii f. aestiva Heiden in Heiden & Kolbe, 1928 (uncertain, unassessed)
    » Forma Biddulphia weissflogii f. aestiva Frenguelli, 1943 (uncertain, unassessed)
    » Forma Biddulphia weissflogii f. hiberna Heiden in Heiden & Kolbe, 1928 (uncertain, unassessed)
    » Forma Biddulphia weissflogii f. hiberna Frenguelli, 1943 (uncertain, unassessed)
  » Species Biddulphia weissflogii Janisch in Schmidt et al., 1888 (unassessed)
    » Forma Biddulphia weissflogii f. weissflogii Janisch, 1888 (uncertain, unassessed)
  » Species Biddulphia woolmanii Kain & Schultze, 1889 (unassessed)
  » Species Biddulphia zanzibarica A. Schmidt, 1894 (unassessed)
Genus Biddulphiopsis H.A. von Stosch & R. Simonsen, 1984
Genus Donskinica Strelnikova & Kozyrenko †
Genus Euodiella P.A. Sims, 2000 †
  » Species Euodiella bicornigera (Hanna) P.A.Sims, 2000 † represented as Triceratium bicornigerum Hanna, 1927
  » Species Euodiella perplexa (J.A.Long, D.P.Fuge & J.Smith) P.A.Sims, 2000 † represented as Triceratium perplexum Long, Fuge & Smith, 1946
  » Species Euodiella semicircularis (Brightwell) P.A.Sims, 2000 † represented as Triceratium semicirculare var. semicirculare Brightwell, 1853
  » Species Euodiella tristictia (Hanna) P.A. Sims, 2000 † represented as Trinacria tristictia Hanna, 1927 †
  » Species Euodiella biddulphiodes P.A. Sims, 2000 (uncertain, unassessed)
  » Species Euodiella cretacera P.A. Sims, 2000 (uncertain, unassessed)
  » Species Euodiella eocenica P.A.Sims, 2000 † (uncertain, unassessed)
  » Species Euodiella hendeyi P.A.Sims, 2000 † (uncertain, unassessed)
Genus Fenneria J.Witkowski, 2018 †
Genus Hydrosera G.C. Wallich, 1858
  » Species Hydrosera triquetra G.C.Wallich
    » Variety Hydrosera triquetra var. 4-gona Tempère & Brun, 1889 (uncertain, unassessed)
    » Variety Hydrosera triquetra var. hexagona Hustedt, 1937 (uncertain, unassessed)
    » Variety Hydrosera triquetra var. tetragona Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Hydrosera triquetra var. triquetra Wallich, 1858 (uncertain, unassessed)
  » Species Hydrosera whampoensis (A.F.Schwarz) Deby, 1891
  » Species Hydrosera petitiana (Leuduger-Fortmorel) F.W. Mills, 1934 represented as Triceratium petitianum Leuduger-Fortmorel, 1898
  » Species Hydrosera trifoliata (Cleve) De Toni, 1894 represented as Triceratium trifoliatum Cleve, 1881 †
  » Species Hydrosera boryana (uncertain, unassessed)
    » Forma Hydrosera boryana f. boryana Pantocsek, 1889 (uncertain, unassessed)
    » Forma Hydrosera boryana f. hexagona Pantocsek, 1889 (uncertain, unassessed)
    » Variety Hydrosera boryana var. hexagona Pantocsek, 1889 (uncertain, unassessed)
  » Species Hydrosera brasiliensis Zimmermann, 1918 (uncertain, unassessed)
  » Species Hydrosera compressa Wallich, 1858 (uncertain, unassessed)
  » Species Hydrosera compressa sensu Laporte & Lefebure, 1929 (uncertain, unassessed)
  » Species Hydrosera javanica (Cleve) (uncertain, unassessed)
  » Species Hydrosera mauritiana Bergon, 1890 (uncertain, unassessed)
  » Species Hydrosera novaecaesarae Boyer, 1895 (uncertain, unassessed)
  » Species Hydrosera tricornuta Stolterfoth, 1881 (uncertain, unassessed)
  » Species Hydrosera tricoronata Stolterfoth, 1881 (uncertain, unassessed)
  » Species Hydrosera trifoliata Cleve, 1881 (uncertain, unassessed)
Genus Isthmia C.A. Agardh, 1832
  » Species Isthmia enervis Ehrenberg, 1838
    » Variety Isthmia enervis var. subcylindica Taylor
    » Forma Isthmia enervis f. intermedia Grunow, 1887 (uncertain, unassessed)
    » Variety Isthmia enervis var. capensis Grunow, 1877 (uncertain, unassessed)
    » Variety Isthmia enervis var. enervis Ag., 1832 (uncertain, unassessed)
    » Variety Isthmia enervis var. georgica Reinsch, 1890 (uncertain, unassessed)
    » Variety Isthmia enervis var. gracilis Ehrenberg, 1838 (uncertain, unassessed)
    » Variety Isthmia enervis var. intermedia (Grunow) (uncertain, unassessed)
    » Variety Isthmia enervis var. japonica Castracane, 1886 (uncertain, unassessed)
    » Variety Isthmia enervis var. schmidtii Heiden (uncertain, unassessed)
    » Variety Isthmia enervis var. subcylindrica Ralfs, 1846 (uncertain, unassessed)
  » Species Isthmia inermis Ehrenberg
  » Species Isthmia nervosa Kützing, 1844
    » Forma Isthmia nervosa f. micropora Cleve-Euler in Cleve-Euler & Hessland, 1948 (uncertain, unassessed)
    » Forma Isthmia nervosa f. nervosa Kützing, 1844 (uncertain, unassessed)
    » Variety Isthmia nervosa var. nankoorensis Grunow, 1867 (uncertain, unassessed)
  » Species Isthmia squinaboli (Forti) Forti
    » Variety Isthmia squinaboli var. crassior Forti, 1912 (uncertain, unassessed)
    » Variety Isthmia squinaboli var. squinaboli Forti in Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Isthmia szaboi Pantocsek
    » Variety Isthmia szaboi var. gigantea M. Peragallo in Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Variety Isthmia szaboi var. szaboi Pantocsek, 1886 (uncertain, unassessed)
  » Species Isthmia japonica (Castracane) Sournia, 1968 represented as Isthmia enervis var. japonica Castracane, 1886
  » Species Isthmia obliquata (J.E.Smith) C.Agardh, 1832 represented as Diatoma obliquatum Lyngbye, 1819
    » Variety Isthmia obliquata var. tenuior Agardh, 1832 (uncertain, unassessed)
  » Species Isthmia schmidtii (Heiden) Simonsen, 1992 represented as Isthmia enervis var. schmidtii Heiden
  » Species Isthmia vesiculosa (Agardh) Agardh, 1832 represented as Diatoma vesiculosum Agardh, 1824
  » Species Isthmia africana Ehrenberg, 1844 (uncertain, unassessed)
  » Species Isthmia capensis Grunow in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Isthmia catenata Meneghini (uncertain, unassessed)
  » Species Isthmia domuslaterariae Reinhold, 1937 (uncertain, unassessed)
  » Species Isthmia filiformis (Ehrenberg) Meneghini (uncertain, unassessed)
  » Species Isthmia fortii Forti & Schulz, 1932 (uncertain, unassessed)
  » Species Isthmia gigantea M. Peragallo in Tempère & Peragallo, 1908 (uncertain, unassessed)
  » Species Isthmia intermedia Grunow, 1889 (uncertain, unassessed)
  » Species Isthmia johnsonii Schmidt fide Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Isthmia lindigiana Grunow & Eulenstein in Grunow, 1867 (uncertain, unassessed)
  » Species Isthmia membranacea Cleve, 1891 (uncertain, unassessed)
  » Species Isthmia minima Harvey & Bailey, 1862 (uncertain, unassessed)
  » Species Isthmia polymorpha Montagne, 1840 (uncertain, unassessed)
  » Species Isthmia reticularis Brun, 1896 (uncertain, unassessed)
  » Species Isthmia sardoa Zanon, 1948 (uncertain, unassessed)
  » Species Isthmia stomatophora (Turpin) Meneghini (uncertain, unassessed)
  » Species Isthmia tenuicornis Grunow, 1889 (uncertain, unassessed)
  » Species Isthmia vertebrata (Brébisson) Meneghini (uncertain, unassessed)
  » Species Isthmia vitrea Kitton, 1873 (uncertain, unassessed)
Genus Medlinia P.A.Sims, 1998 †
  » Species Medlinia deciusii (Hanna) V.A.Nikolaev & J.P.Kociolek in Nikolaev et al., 2001 †
  » Species Medlinia simbirskiana (Witt) P.A.Sims, 1998 †
  » Species Medlinia weissei (Grunow in A.Schmidt) P.A.Sims, 1998 †
  » Species Medlinia abyssorum (Grunow) P.A.Sims, 1998 † represented as Triceratium abyssorum var. abyssorum Grunow in Van Heurck, 1883
  » Species Medlinia duplicata (A.Schmidt) P.A.Sims, 1998 † represented as Triceratium duplicatum Schmidt in Schmidt et al., 1882
  » Species Medlinia fenestrata (Witt) P.A.Sims, 1998 † represented as Triceratium fenestratum Witt, 1885
  » Species Medlinia gombosii (J.Fenner) P.A.Sims, 1998 † represented as Triceratium gombosii Fenner, 1991
  » Species Medlinia mucronata (A. Schmidt) V.A. Nikolaev & J.A. Barron in Nikolaev, V.A., Kociolek, J.P., Fourtanier, E., Barron, J.A. & Harwood, D.M., 2001 † represented as Triceratium mucronatum Schmidt in Schmidt et al., 1886
  » Species Medlinia subundosum (Hustedt) P.A.Sims, 1998 † represented as Sheshukovia subundosa (Hustedt) Z.I.Gleser, 1984 † (homotypic synonym)
  » Species Medlinia sundbyensis (Hustedt ex R.Simonsen) P.A.Sims, 1998 † represented as Triceratium sundbyense Hustedt ex R.Simonsen, 1987 †
  » Species Medlinia synica (N.I.Strelnikova) P.A.Sims, 1998 † represented as Triceratium synicum N.I.Strelnikova, 1965 †
  » Species Medlinia uralensis (N.I.Strelnikova) P.A.Sims, 1998 † represented as Triceratium uralense N.I.Strelnikova, 1965 †
  » Species Medlinia venusta (Witt) P.A.Sims, 1998 † represented as Triceratium venustum Witt, 1885
    » Variety Medlinia venusta var. costata Sims, 1998 † (uncertain, unassessed)
  » Species Medlinia pseudoweissei P.A.Sims, 1998 † (uncertain, unassessed)
Genus Neohuttonia O. Kuntze, 1898
  » Species Neohuttonia alternans (Grove & Sturt) Kuntze, 1898 represented as Huttonia alternans Grove & Sturt, 1887
  » Species Neohuttonia labuani (Cleve) Kuntze, 1898 represented as Cerataulus labuensis var. labuensis Cleve, 1883
  » Species Neohuttonia reedii (Bone & Gosden) Desikachary & Sreelatha, 1989 represented as Huttonia reedii Bone & Gosden, 1967
  » Species Neohuttonia reichardtii (Grunow) Hustedt represented as Cerataulus reichardtii Grunow, 1863
  » Species Neohuttonia reversa (Grove & Sturt) Desikachary & Sreelatha, 1989 represented as Biddulphia reversa Grove & Sturt, 1887
  » Species Neohuttonia tripartita (Barker & Meakin) Desikachary & Sreelatha, 1989 represented as Huttonia tripartita Barker & Meakin, 1946
  » Species Neohuttonia virgata (Grove & Sturt) Kuntze, 1898 represented as Huttonia virgata Grove & Sturt, 1887
Genus Pseudotriceratium A. Grunow, 1884
  » Species Pseudotriceratium araneosum (Greville) Grunow, 1884 represented as Triceratium araneosum Greville, 1865
  » Species Pseudotriceratium chenevieri (Meister) Gleser, 1974 represented as Triceratium chenevieri Meister, 1937
  » Species Pseudotriceratium cinnamomeum (Greville) Grunow, 1884 represented as Triceratium cinnamomeum var. cinnamomeum Greville, 1863
  » Species Pseudotriceratium flexuosum (Greville) Grunow, 1884 represented as Triceratium flexuosum Greville, 1862
  » Species Pseudotriceratium implicatum (Greville) Grunow, 1884 represented as Triceratium implicatum Greville, 1865
  » Species Pseudotriceratium labyrinthaeum (Greville) Grunow, 1884 represented as Triceratium labyrinthaeum Greville, 1861
  » Species Pseudotriceratium obscurum (Greville) Grunow, 1884 represented as Triceratium obscurum f. obscurum Greville, 1861
  » Species Pseudotriceratium pileatum (Grunow in Van Heurck) Grunow, 1884 represented as Triceratium pileatum Grunow in Van Heurck, 1883
  » Species Pseudotriceratium punctatum (Wallich) Simonsen, 1974 represented as Triceratium punctatum Wallich, 1860
  » Species Pseudotriceratium radiosoreticulatum (Grunow) Fenner represented as Triceratium radiosoreticulatum Grunow in Van Heurck, 1883
  » Species Pseudotriceratium wallichii (Ralfs in Pritchard) Simonsen, 1979 represented as Triceratium wallichii Ralfs in Pritchard, 1861
  » Species Pseudotriceratium adleri Mahood in Mahood, Barron & Sims, 1993 (uncertain, unassessed)
  » Species Pseudotriceratium fallax Grunow, 1884 † (uncertain, unassessed)
  » Species Pseudotriceratium korotkevichae Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain, unassessed)
  » Species Pseudotriceratium notabile (O. Korotkevich) Gleser, 1974 (uncertain, unassessed)
Genus Stoermeria J.P. Kociolek, L. Escobar & S. Richardson, 1996
Genus Terpsinoë C.G. Ehrenberg, 1843
  » Species Terpsinoë americana (Bailey) Grunow, 1868
    » Forma Terpsinoë americana f. americana (J.W. Bailey) Ralfs in Pritchard, 1861 represented as Tetragramma americana Bailey, 1854
    » Forma Terpsinoë americana f. tetragramma (L.W. Bailey) M. Peragallo, 1903 represented as Terpsinoë tetragramma L.W. Bailey, 1861
    » Forma Terpsinoë americana f. trigona Pantocsek, 1886 (uncertain, unassessed)
    » Forma Terpsinoë americana f. trigona Pantocsek, 1886 (uncertain, unassessed)
    » Variety Terpsinoë americana var. grunowi Heiden, 1900 (uncertain, unassessed)
    » Variety Terpsinoë americana var. macrocephala Brockmann, 1932 (uncertain, unassessed)
    » Variety Terpsinoë americana var. nennhausensis Schwarzenholz, 1965 (uncertain, unassessed)
    » Variety Terpsinoë americana var. trigona (Pantocsek) Brun in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Terpsinoë intermedia Pantocsek
    » Forma Terpsinoë intermedia f. intermedia Grunow, 1884 (uncertain, unassessed)
    » Forma Terpsinoë intermedia f. musica M. Peragallo in Peragallo & Peragallo, 1911 (uncertain, unassessed)
    » Variety Terpsinoë intermedia var. musica Tempère & Peragallo, 1915 (uncertain, unassessed)
  » Species Terpsinoë muninensis Tuji, 2018
  » Species Terpsinoë musica Ehrenberg, 1843
  » Species Terpsinoë brebissonii (Kützing) Van Heurck, 1896 represented as Pleurodesmium brebissonii Kützing, 1849
  » Species Terpsinoë indica (Ehrenberg) Kützing, 1849 represented as Anaulus indicus Ehrenberg, 1845
  » Species Terpsinoë libyca (Ehrenberg; Ehrenberg) De Toni, 1892 represented as Tetragramma libycum Ehrenberg, 1841 (1843)
  » Species Terpsinoë novaecaesarae (Boyer) Boyer, 1916 represented as Hydrosera novaecaesarae Boyer, 1895
  » Species Terpsinoë petitiana (Leuduger-Fortmorel) Hendey, 1971 represented as Triceratium petitianum Leuduger-Fortmorel, 1898
  » Species Terpsinoë trifoliata (Cleve) Peragallo & Peragallo, 1901 represented as Hydrosera trifoliata Cleve, 1881
  » Species Terpsinoë anguinea Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Terpsinoë asiatica Ehrenberg ex Chase in Habirshaw et al., 1888 (uncertain, unassessed)
  » Species Terpsinoë asiatica (Ehrenberg) Ralfs in Pritchard, 1861 (uncertain, unassessed)
  » Species Terpsinoë australis Ehrenberg, 1854 (uncertain, unassessed)
  » Species Terpsinoë brasiliensis Ehrenberg, 1854 (uncertain, unassessed)
  » Species Terpsinoë brunii Pantocsek, 1892 (uncertain, unassessed)
  » Species Terpsinoë indica Ehrenberg, 1845 (uncertain, unassessed)
  » Species Terpsinoë inflata Brun, 1891 (uncertain, unassessed)
  » Species Terpsinoë japonica Ehrenberg, 1854 (uncertain, unassessed)
  » Species Terpsinoë javanensis Ehrenberg, 1854 (uncertain, unassessed)
  » Species Terpsinoë magna L.W. Bailey, 1861 (uncertain, unassessed)
  » Species Terpsinoë minima L.W. Bailey, 1861 (uncertain, unassessed)
  » Species Terpsinoë minuta Aubert, 1894 (uncertain, unassessed)
  » Species Terpsinoë musica sensu Mann, 1907 (uncertain, unassessed)
  » Species Terpsinoë nodosa Harting, 1852 (uncertain, unassessed)
  » Species Terpsinoë pellucida Harting, 1852 (uncertain, unassessed)
  » Species Terpsinoë polygibba Pantocsek, 1892 (uncertain, unassessed)
  » Species Terpsinoë tetragramma L.W. Bailey, 1861 (uncertain, unassessed)
  » Species Terpsinoë triquetra (uncertain, unassessed)
  » Species Terpsinoë triquetra Pantocsek, 1892 (uncertain, unassessed)
  » Species Terpsinoë warriensis F. W. Mills, 1932 (uncertain, unassessed)
Genus Trigonium P.T. Cleve, 1867
  » Species Trigonium arcticum (Brightwell) Cleve, 1868
    » Forma Trigonium arcticum f. arcticum (Brightwell) Cleve, 1867 represented as Triceratium arcticum f. arcticum Brightwell, 1853
    » Variety Trigonium arcticum var. californica (Grunow) Wornardt, 1967 represented as Triceratium arcticum f. californica Grunow in Schmidt et al., 1882
    » Variety Trigonium arcticum var. californica (Grunow) Desikachary & Prema in Desikachary, 1989 represented as Triceratium arcticum f. californica Grunow in Schmidt et al., 1882
    » Variety Trigonium arcticum var. japonica (Grunow in Schmidt) Desikachary & Sreelatha, 1989 represented as Triceratium arcticum var. japonica Grunow in Schmidt et al., 1882
    » Variety Trigonium arcticum var. kerguelense (Grunow in Cleve & Grunow) Desikachary & Sreelatha in Desikachary & Devi, 1986 represented as Triceratium arcticum var. kerguelense Grunow in Cleve & Grunow, 1880
    » Variety Trigonium arcticum var. pentagonalis (Tempère & Peragallo) Desikachary & Sreelatha, 1989 represented as Triceratium arcticum var. pentagonalis Tempère & Peragallo, 1910
    » Variety Trigonium arcticum var. quinquelobatum (Greville) Desikachary & Devi, 1986 represented as Triceratium quinquelobatum Greville, 1866
    » Forma Trigonium arcticum f. campechiana Peragallo & Peragallo, 1897-1908 (uncertain, unassessed)
    » Forma Trigonium arcticum f. quadrata (Grunow) Desikachary, 1989 (uncertain, unassessed)
    » Forma Trigonium arcticum f. tetragona (A. Schmidt) Desikachary, 1989 (uncertain, unassessed)
    » Variety Trigonium arcticum var. formosa Peragallo & Peragallo, 1897-1908 (uncertain, unassessed)
    » Variety Trigonium arcticum var. quadrata (Grunow ex Tempère & Peragallo) Desikachary & Sreelatha, 1989 (uncertain, unassessed)
    » Variety Trigonium arcticum var. sexangulatum (Boyer) Desikachary & Prema, 1987 (uncertain, unassessed)
  » Species Trigonium inelegans (Greville) A.Mann
  » Species Trigonium abyssorum (Grunow in Van Heurck) Hustedt in Schmidt et al., 1959 represented as Triceratium abyssorum var. abyssorum Grunow in Van Heurck, 1883
  » Species Trigonium alternans (Bailey) A.Mann, 1907 represented as Triceratium alternans f. alternans J.W. Bailey, 1851
  » Species Trigonium balaena (Ehrenberg; Ehrenberg) Cleve, 1867 represented as Zygoceros balaena Ehrenberg, 1853
  » Species Trigonium bicoronatum (Castracane) Mann, 1925 represented as Stictodiscus bicoronatus var. bicoronatus Castracane, 1886
  » Species Trigonium caelatum (Janisch in Schmidt et al.) Mann, 1925 represented as Triceratium caelatum Janisch, 1885
  » Species Trigonium cariosum (Castracane) Hustedt in Schmidt et al., 1959 represented as Triceratium cariosum Castracane, 1886
  » Species Trigonium cinnamomeum (Greville) Mann, 1907 represented as Triceratium cinnamomeum var. cinnamomeum Greville, 1863
  » Species Trigonium coscinoides (Grove & Sturt) Mann, 1907 represented as Triceratium coscinoides var. coscinoides Grove & Sturt, 1886
  » Species Trigonium crenulatum (Grove & Sturt) Hustedt in Schmidt et al., 1959 represented as Triceratium crenulatum f. crenulatum Grove & Sturt, 1887
  » Species Trigonium cucullatum (Pantocsek) Hustedt in Schmidt et al., 1959 represented as Triceratium cucullatum var. cucullatum Pantocsek, 1889
  » Species Trigonium dissimile (Grunow in Schmidt et al.) Mann, 1925 represented as Triceratium dissimile Grunow in Schmidt et al., 1885
  » Species Trigonium dobreeanum (G.Norman ex Greville) Hustedt, 1959 represented as Triceratium dobreeanum var. dobreeanum Norman ex Greville, 1865
  » Species Trigonium dulce (Greville) Mann, 1925 represented as Triceratium dulce var. dulce Greville, 1866
  » Species Trigonium eulensteinii (Grunow in Schmidt et al.) Mann, 1925 represented as Triceratium eulensteinii var. eulensteinii Grunow in Schmidt et al., 1882
  » Species Trigonium formosum (Brightwell) Cleve, 1867 represented as Triceratium formosum f. formosum Brightwell, 1856
  » Species Trigonium frauenfeldii (Grunow in Van Heurck) Mann, 1925 represented as Triceratium frauenfeldii Grunow in Van Heurck, 1883
  » Species Trigonium gallapagense (Cleve) Desikachary & Sreelatha, 1989 represented as Triceratium gallapagense Cleve, 1881
  » Species Trigonium geminum (Schmidt in Schmidt et al.) Mann, 1925 represented as Triceratium geminum Schmidt in Schmidt et al., 1882
  » Species Trigonium glandarium (Schmidt in Schmidt et al.) Hustedt in Schmidt et al., 1959 represented as Triceratium glandarium Schmidt in Schmidt et al., 1888
  » Species Trigonium glandiferum (Grunow) Hustedt, 1959 represented as Triceratium glandiferum Grunow, 1888
  » Species Trigonium hertleinii (Hanna) V.A. Nikolaev & E. Fourtanier in Nikolaev, V.A., Kociolek, J.P., Fourtanier, E., Barron, J.A. & Harwood, D.M., 2001 represented as Triceratium hertleini Hanna, 1927
  » Species Trigonium heteroporum (Grunow in Van Heurck) Mann, 1925 represented as Triceratium heteroporum Grunow in Van Heurck, 1883
  » Species Trigonium inglorium (Greville) Mann, 1925 represented as Triceratium inglorium Greville, 1865
  » Species Trigonium latum (Grev.) A. Mann, 1925 represented as Triceratium latum var. latum Greville, 1865
  » Species Trigonium lautourianum (Grove ex Tempère) Hustedt in Schmidt et al., 1959 represented as Triceratium lautourianum Grove in Bergon et al., 1890
  » Species Trigonium lineatum (Greville) Desikachary & Sreelatha, 1989 represented as Triceratium lineatum f. lineatum Greville, 1863
  » Species Trigonium mammiferum (Grunow in Van Heurck) Hustedt in Schmidt et al., 1959 represented as Triceratium mammiferum f. mammiferum Grunow in Van Heurck, 1883
  » Species Trigonium membranaceum (Cleve) Mann, 1925 represented as Biddulphia membranacea Cleve, 1878
  » Species Trigonium moronense (Greville) Desikachary, 1989 represented as Triceratium moronense var. moronense Greville, 1865
  » Species Trigonium multiplex (Janisch in Schmidt et al.) Mann, 1925 represented as Triceratium multiplex f. multiplex Janisch in Schmidt et al., 1882
  » Species Trigonium oamaruense (Grove & Sturt) Mann, 1937 represented as Triceratium oamaruense var. oamaruense Grove & Sturt, 1887
  » Species Trigonium parallelum (Ehrenberg) Mann, 1907 represented as Amphitetras parallela Ehrenberg, 1840
  » Species Trigonium pardus (Schmidt in Schmidt et al.) Mann, 1925 represented as Triceratium pardus Schmidt in Schmidt et al., 1882
  » Species Trigonium planoconcavum (Brun in Brun & Tempère) Mann, 1907 represented as Triceratium planoconcavum var. planoconcavum Brun in Brun & Tempère, 1889
  » Species Trigonium propium (Pantocsek) Hustedt in Schmidt et al., 1959 represented as Triceratium proprium Pantocsek, 1892
  » Species Trigonium punctatum (Brightwell) A.Mann, 1925 represented as Triceratium punctatum f. punctatum Brightwell, 1856
  » Species Trigonium quadratum (Greville) Hustedt in Schmidt et al., 1959 represented as Triceratium quadratum R.K.Greville, 1865 †
  » Species Trigonium quinquelobatum (Greville) Mann, 1925 represented as Triceratium quinquelobatum Greville, 1866
  » Species Trigonium radfordianum (Castracane) Mann, 1925 represented as Stictodiscus radfordianus Castracane, 1886
  » Species Trigonium radiolatum (Janisch in Schmidt et al.) Mann, 1925 represented as Triceratium radiolatum Janisch in Schmidt et al., 1890
  » Species Trigonium reticulum (Ehrenberg) Simonsen, 1974 represented as Triceratium reticulum f. reticulum Ehrenberg, 1844
  » Species Trigonium sculptum (Shadbolt) Mann, 1907 represented as Triceratium sculptum var. sculptum Shadbolt, 1854
  » Species Trigonium sentum (Witt in Schmidt et al.) Hustedt in Schmidt et al., 1959 represented as Triceratium sentum f. sentum Witt in Schmidt et al., 1890
  » Species Trigonium striolatum (Ehrenberg) A.Mann, 1907 represented as Triceratium striolatum Ehrenberg, 1840
  » Species Trigonium subcapitatum (Greville) Hustedt in Schmidt et al., 1959 represented as Triceratium subcapitatum var. subcapitatum Greville, 1863
  » Species Trigonium trinitas (Brun in Schmidt et al.) Mann, 1907 represented as Triceratium trinitas var. trinitas Brun in Schmidt et al., 1891
  » Species Trigonium undatum (Grunow) Hustedt in Schmidt et al., 1959 represented as Triceratium undatum Grunow, 1887
  » Species Trigonium wetzelii (Hustedt in Wetzel) Hustedt in Schmidt et al., 1959 represented as Triceratium wetzelii Hustedt ex Wetzel, 1935
  » Species Trigonium zonulatum (Greville) Mann, 1907 represented as Triceratium zonatulatum f. zonulatum Greville, 1865
  » Species Trigonium lahuseni (J.Pantocsek) F.Hustedt in A.Schmidt et al., 1959 † accepted as Entogoniopsis lahusenii (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Trigonium pseudonervatum (Grove & Sturt) Hustedt, 1959 accepted as Triceratium pseudonervatum E.Grove & G.Sturt, 1887 (synonym)
  » Species Trigonium stokesianum (R.K.Greville) F. Hustedt in A.W.F.Schmidt et al., 1959 † accepted as Entogoniopsis stokesiana (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Trigonium tabellarium (T.Brightwell) A.Mann, 1907 accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015
  » Species Trigonium adspersum Mann, 1907 (uncertain, unassessed)
  » Species Trigonium arcticum Mann, 1907 (uncertain, unassessed)
  » Species Trigonium capitiferum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium cinnamoneum (Greville) Mann, 1937 (uncertain, unassessed)
  » Species Trigonium condecorum (Ehrenberg) Hendey (uncertain, unassessed)
  » Species Trigonium contumax Mann, 1925 (uncertain, unassessed)
  » Species Trigonium demissum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium diaphanum A.Mann, 1925 (uncertain, unassessed)
  » Species Trigonium gracillimum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium graeffeanum (Witt) Hendey, 1971 (uncertain, unassessed)
  » Species Trigonium haitianum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium luculentum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium mamillanum Debes ex Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium multifrons (uncertain, unassessed)
  » Species Trigonium obtusangulum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium officiosum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium pilchrum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium radiopunctatum (Schmidt in Schmidt et al.) Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium repletum Peragallo & Peragallo, 1908 (uncertain, unassessed)
  » Species Trigonium rusticum Mann, 1907 (uncertain, unassessed)
  » Species Trigonium sparsipunctatum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium subofficiosum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium taeniatum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium udiensis Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium venulosum (uncertain, unassessed)
    » Forma Trigonium venulosum f. quadrata Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
    » Forma Trigonium venulosum f. venulosum (Greville) (uncertain, unassessed)
  » Species Trigonium verecundum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium veterarium Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
  » Species Trigonium vetustum Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
marine, fresh
Not documented
Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2021). DiatomBase. Biddulphiaceae Kützing, 1844. Accessed at: http://www.diatombase.org/aphia.php?p=taxdetails&id=148966 on 2021-10-16
Date
action
by
2005-03-30 08:52:46Z
created
db_admin

basis of record Round, F.E.; Crawford, R.M.; Mann, D.G. (1990). The diatoms: biology and morphology of the genera. Cambridge University Press: London, UK. ISBN 0-521-363187. 747 pp. (look up in IMIS[details]   
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
LanguageName 
Japanese ビドゥルフィア科  [details]
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