Mycetacanthus biseriatus (N.I.Strelnikova) Strelnikova & Fourtanier accepted as Stephanopyxis biseriata Strelnikova, 1974
Mycetacanthus crenatus (Sheshukova-Poretskaya) Strelnikova & Fourtanier accepted as Stephanopyxis crenata Sheshukova-Poretzkaja in Sheshukova-Poretzkaja & Gleser, 1964
Mycetacanthus vigilans (A.W.F.Schmidt) Strelnikova & Fourtanier accepted as Coscinodiscus vigilans Schmidt in Schmidt et al., 1888
Stephanopyxis aciculata Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain > unassessed )
Stephanopyxis aciculata Dolmatova, 1986 (uncertain > unassessed )
Stephanopyxis aculeata (Ehrenberg) Ehrenberg, 1876 accepted as Pyxidicula aculeata Ehrenberg, 1844
Stephanopyxis aculeata (Ehrenberg) Grunow, 1884 accepted as Pyxidicula aculeata Ehrenberg, 1844
Stephanopyxis ambigua Grunow, 1884 (uncertain > unassessed )
Stephanopyxis antiqua Jouse (uncertain > unassessed )
Stephanopyxis antiqua Pantocsek, 1892 (uncertain > unassessed )
Stephanopyxis antiquus Jousé, 1951 (uncertain > unassessed )
Stephanopyxis apiculata (Ehrenberg) Ehrenberg
Stephanopyxis apiculata var. apiculata Ehrenberg, 1854 (uncertain > unassessed )
Stephanopyxis apiculata var. bicornis Grunow in Cleve & Möller, 1879 (uncertain > unassessed )
Stephanopyxis apiculata var. granulata Grunow, 1884 (uncertain > unassessed )
Stephanopyxis apiculata var. intermedia Grunow in Cleve & Möller, 1879 (uncertain > unassessed )
Stephanopyxis appendiculata (Ehrenberg) Ehrenberg
Stephanopyxis appendiculata var. appendiculata Ehrenberg, 1854 (uncertain > unassessed )
Stephanopyxis appendiculata var. intermedia (Grunow) Grunow accepted as Stephanopyxis turris f. intermedia Grunow, 1884
Stephanopyxis appendiculata var. parvispina (Grunow) Grunow accepted as Stephanopyxis turris var. parvispina Grunow, 1884
Stephanopyxis appendiculata var. paucispina (Grunow) Grunow in Schmidt, 1888 accepted as Stephanopyxis turris f. paucispina Grunow, 1884
Stephanopyxis appendiculata var. tenuispina Schmidt in Schmidt et al., 1888 (uncertain > unassessed )
Stephanopyxis arctica (Grunow) Thum Slides accepted as Stephanopyxis turris f. arctica Grunow, 1884
Stephanopyxis aristata Tempère & Brun in Brun & Tempère, 1889 (uncertain > unassessed )
Stephanopyxis avita Frenguelli, 1936 (uncertain > unassessed )
Stephanopyxis barbadensis (Greville) Grunow, 1884 (uncertain > unassessed )
Stephanopyxis beringensis Dolmatova, 1986 (uncertain > unassessed )
Stephanopyxis bicornis Grunow in Cleve & Möller, 1879 (uncertain > unassessed )
Stephanopyxis biseriata Strelnikova, 1974 (uncertain > unassessed )
Stephanopyxis broschii Grunow
Stephanopyxis broschii f. aculeis (uncertain > unassessed )
Stephanopyxis broschii f. aculeis obtusis Grunow, 1884 (uncertain > unassessed )
Stephanopyxis broschii f. broschii Grunow, 1884 (uncertain > unassessed )
Stephanopyxis broschii f. inermis Grunow, 1884 (uncertain > unassessed )
Stephanopyxis broschii var. aculeis (uncertain > unassessed )
Stephanopyxis broschii var. aculeis obtusis (Grunow) Cleve-Euler, 1951 (uncertain > unassessed )
Stephanopyxis broschii var. inermis (Grunow) Cleve-Euler, 1951 (uncertain > unassessed )
Stephanopyxis broschii var. spinifera Cleve-Euler, 1951 (uncertain > unassessed )
Stephanopyxis brunii Schmidt in Schmidt et al., 1891 (uncertain > unassessed )
Stephanopyxis californica Schrader, 1973 (uncertain > unassessed )
Stephanopyxis campana Castracane, 1886 (uncertain > unassessed )
Stephanopyxis campechiana Grunow in Schmidt et al., 1881 (uncertain > unassessed )
Stephanopyxis cancellatus Jousé, 1951 (uncertain > unassessed )
Stephanopyxis carkovianus Jouse in Proschkina-Lavrenko, 1949 (uncertain > unassessed )
Stephanopyxis charkoviana A.P.Jousé, 1949 accepted as Eupyxidicula charkoviana (Jousé) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis convexa Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain > unassessed )
Stephanopyxis convexa Dolmatova, 1986 (uncertain > unassessed )
Stephanopyxis convexa f. minor Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain > unassessed )
Stephanopyxis corona (Ehrenberg) Grunow
Stephanopyxis corona var. corona (Ehrenberg) Grunow in Van Heurck, 1883 accepted as Systephania corona Ehrenberg, 1844 (1845) †
Stephanopyxis corona var. kamtschatica Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain > unassessed )
Stephanopyxis corona var. monicae Grunow, 1884 (uncertain > unassessed )
Stephanopyxis coronata Baranov, 1942 (uncertain > unassessed )
Stephanopyxis costata (Greville) Hustedt, 1956 accepted as Melosira costata Greville, 1866
Stephanopyxis costatus Gleser, 1967 (uncertain > unassessed )
Stephanopyxis crassispina (Grunow) Grunow (uncertain > unassessed )
Stephanopyxis crenata Sheshukova-Poretzkaja in Sheshukova-Poretzkaja & Gleser, 1964 (uncertain > unassessed )
Stephanopyxis cristagalli Tempère & Brun in Brun & Tempère, 1889 (uncertain > unassessed )
Stephanopyxis cristata (Ehrenberg) Ehrenberg (uncertain > unassessed )
Stephanopyxis cruciata (Ehrenberg) Tempère & Peragallo, 1889 accepted as Pyxidicula cruciata Ehrenberg, 1838
Stephanopyxis cylindrica Ehrenberg, 1872 (uncertain > unassessed )
Stephanopyxis cylindrus (Ehrenberg) Frenguelli, 1936 accepted as Pyxidicula cylindricus Ehrenberg, 1844
Stephanopyxis defectus Strelnikova in Dzinoridze, Jouse & Strelnikova, 1979 accepted as Eupyxidicula defecta (Streln.) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis delectabilis Pantocsek, 1889 (uncertain > unassessed )
Stephanopyxis diadema Ehrenberg, 1845 (uncertain > unassessed )
Stephanopyxis dimorpha Schrader, 1973 (uncertain > unassessed )
Stephanopyxis discrepans Hanna, 1927 (uncertain > unassessed )
Stephanopyxis edita Jousé, 1955 accepted as Eupyxidicula edita (Jousé) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis entzii Pantocsek, 1903 (uncertain > unassessed )
Stephanopyxis eocaenica Hajós, 1976 (uncertain > unassessed )
Stephanopyxis eutycha (Ehrenberg) Forti, 1913 accepted as Peristephania eutycha Ehrenberg, 1854
Stephanopyxis ferox (Greville) J.Ralfs
Stephanopyxis ferox f. ferox (Greville) Ralfs in Pritchard, 1861 accepted as Cresswellia ferox Greville, 1859 accepted as Eupyxidicula ferox (Grev.) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis ferox f. minuta Schmidt in Schmidt et al., 1888 (uncertain > unassessed )
Stephanopyxis furcata (Grove ex Rattray) Frenguelli, 1949 (uncertain > unassessed )
Stephanopyxis fuscus Jousé, 1951 (uncertain > unassessed )
Stephanopyxis grossecellulata Pantocsek, 1886 (uncertain > unassessed )
Stephanopyxis grunowii Grove & Sturt, 1888 accepted as Eupyxidicula grunowii (E.Grove & G.Sturt) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis grunowii f. grunowii Grove & Sturt in Schmidt et al., 1888 (uncertain > unassessed )
Stephanopyxis grunowii f. monstrosa Forti, 1913 (uncertain > unassessed )
Stephanopyxis grunowii var. ornata Van Heurck, 1909 (uncertain > unassessed )
Stephanopyxis gyrata Pantocsek, 1889 (uncertain > unassessed )
Stephanopyxis hannai Hajós, 1974 (uncertain > unassessed )
Stephanopyxis herzbergi Hanna & Brigger, 1964 (uncertain > unassessed )
Stephanopyxis hispida Ehrenberg, 1855 (uncertain > unassessed )
Stephanopyxis hispidula Grunow, 1884 (uncertain > unassessed )
Stephanopyxis horridus Koizumi, 1972 (uncertain > unassessed )
Stephanopyxis hyalina Grunow, 1884 (uncertain > unassessed )
Stephanopyxis hyalomarginata Hajós, 1976 (uncertain > unassessed )
Stephanopyxis inermis Jousé, 1961 (uncertain > unassessed )
Stephanopyxis inordinata Hajós, 1976 (uncertain > unassessed )
Stephanopyxis intermedia (Grunow) M. Peragallo, 1903 accepted as Stephanopyxis turris f. intermedia Grunow, 1884
Stephanopyxis irregularis (Grunow in Cleve & Möller) De Toni, 1894 accepted as Systephania irregularis Grunow in Cleve & Möller, 1879
Stephanopyxis joynsonii Schmidt in Schmidt et al., 1888 accepted as Eupyxidicula joynsonii (A.W.F.Schmidt) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis kamtschatica Dolmatova, 1986 (uncertain > unassessed )
Stephanopyxis kittoniana Castracane, 1886 (uncertain > unassessed )
Stephanopyxis kulmii Schrader, 1973 (uncertain > unassessed )
Stephanopyxis lavrenkoi Jousé in Proschkina-Lavrenko, 1949 accepted as Eupyxidicula lavrenkoi (Jousé) S.Blanco & C.E.Wetzel, 2016
Stephanopyxis liclana Dolmatova, 1986 (uncertain > unassessed )
Stephanopyxis limbata (Ehrenberg) Ehrenberg