• Arcocellulus cornucervis G.R.Hasle, H.A.von Stosch & E.E.Syvertsen, 1983 (uncertain > unassessed)
• Brockmanniella brockmannii (Hustedt) Hasle, Stosch & Syvertsen, 1983 accepted as Plagiogramma brockmanni var. brockmanni Hustedt, 1939
• Campylosira alexandrica Salah, 1955 (uncertain > unassessed)
• Campylosira cymbelliformis (A.Schmidt) Grunow ex Van Heurck, 1885 (uncertain > unassessed)
• Cymatosira belgica Grunow, 1881 (uncertain > unassessed)
• Cymatosira lorenziana Grunow, 1862 (uncertain > unassessed)
• Extubocellulus spinifer (Hargraves & Guillard) Hasle, Stosch & Syvertsen, 1983 accepted as Bellerochea spinifera Hargraves & Guillard, 1974
• Lennoxia faveolata H.A.Thomsen & K.R.Buck, 1993 (uncertain > unassessed)
• Minutocellus polymorphus (Hargraves & Guillard) Hasle, Stosch & Syvertsen, 1983 accepted as Bellerochea polymorpha Hargraves & Guillard, 1974
• Plagiogrammopsis vanheurckii (Grunow) Hasle, von Stosch & Syvertsen, 1983 accepted as Plagiogramma vanheurckii Grunow, 1881