Ovulidae Fleming, 1822
Simnia acicularis (Lamarck, 1810)
Simnia aequalis Sowerby, 1832
Simnia aperta (G.B. Sowerby II, 1849)
Simnia arcuata (Reeve, 1865)
Simnia avena (G.B. Sowerby II, 1832)
Simnia barbarensis Dall, 1892
Simnia bartschi (Cate, 1973)
Simnia bijuri (Cate, 1976)
Simnia exigua Tate
Simnia hammesi (Bertsch & Bibbey, 1982)
Simnia hiscocki Lorenz & Melaun, 2011
Simnia hyalina Lorenz & Fehse, 2009
Simnia inflexa (Sowerby, 1832)
Simnia loebbeckeana (Weinkauff, 1881)
Simnia macleani (Cate, 1976)
Simnia maesae Cate, 1973
Simnia patriciae (Nolf, 2008)
Simnia patula (Pennant, 1777)
Simnia purpurea Risso, 1826
Simnia sculptura (Cate, 1973)
Simnia senegalensis (F.A. Schilder, 1931)
Simnia spelta (Linnaeus, 1758)
Simnia uniplicata Sowerby, 1848
Xandarovula formosana (Azuma, 1972)
