Seymourosphaera bulloides (FOSSIL) A. Oleinik & Zinsmeister,1996 †
Seymourosphaera depressa (FOSSIL) Olenik & Zinsmeister,1996 †
Seymourosphaera elevata (FOSSIL) Olenik & Zinsmeister,1996 †
Seymourosphaera subglobosa (FOSSIL) A. Oleinik & Zinsmeister,1996 †
Siphonalia acuta (FOSSIL) Rivera, 1957 †
Siphonalia andersoni (FOSSIL) Wagner & Schilling,1923 †
Siphonalia ariejansseni (FOSSIL) Schnetler, 2001 †
Siphonalia aspersa J.T. Kuroda& T. Habe in T. Habe, 1961
Siphonalia belenensis (FOSSIL) A.A. Olsson, 1931 †
Siphonalia bervillei (FOSSIL) G.P. Deshayes, 1864 †
Siphonalia callizona J.T. Kuroda& T. Habe in T. Habe, 1961
Siphonalia calvertana (FOSSIL) Martin, 1904 †
Siphonalia cassidariaeformis (L.A. Reeve, 1846)
Siphonalia cassidariaeformis conspersa A. Adams, 1863
Siphonalia cassidariaeformis funerea H.A. Pilsbry, 1895
Siphonalia cassidariaeformis ornata A. Adams, 1863
Siphonalia cassidariaeformis tosana (S. Hirase, 1908)
Siphonalia commoda A. Adams, 1863
Siphonalia concinna A. Adams, 1863
Siphonalia cotteri (FOSSIL) E.W. Vredenburg, 1923 †
Siphonalia dainitiensis (FOSSIL) J. Makiyama, 1927 †
Siphonalia devexus (FOSSIL) (T.A. Conrad, 1843 †)
Siphonalia fusanensis J.T. Kuroda, 1948
Siphonalia fuscolineata (FOSSIL) (W.H. Pease, 1860 †)
Siphonalia fusoides (L.A. Reeve, 1846)
Siphonalia hinnulus (A. Adams & L.A. Reeve,1850)
Siphonalia hirasei J.T. Kuroda& T. Habe in T. Habe, 1961
Siphonalia ishikariana (FOSSIL) K. Oyama & A. Mizuno,1958 †
Siphonalia johnsoni (FOSSIL) H.G. Richards, 1947 †
Siphonalia kawaensis J.A. Bartrum 1919
Siphonalia kikaigashimana Y. Hirase, 1908
Siphonalia kuronoi T.C. Lan & Yoshihiro Goto,2004
Siphonalia laddi (FOSSIL) F.S. MacNeil, 1961 †
Siphonalia ligata A. Adams, 1863
Siphonalia longirostris R.W. Dunker, 1882
Siphonalia marybethi M. Parth, 1996
Siphonalia mikado J.C. Melvill, 1888
Siphonalia mikado makiyamai (FOSSIL) F.S. MacNeil, 1960 †
Siphonalia modificata (L.A. Reeve, 1846)