Neosimnia illyrica F. A. Schilder, 1927 accepted as Simnia illyrica (Schilder, 1927)
Neosimnia spelta (Linnaeus, 1758) accepted as Simnia spelta (Linnaeus, 1758)
Simnia aperta (G. B. Sowerby II, 1849)
Simnia hiscocki Lorenz & Melaun, 2011
Simnia hyalina Lorenz & Fehse, 2009
Simnia illyrica (Schilder, 1927)
Simnia jacintoi Fehse & Trigo, 2015
Simnia nicaeensis Risso, 1826 accepted as Simnia spelta (Linnaeus, 1758)
Simnia patula (Pennant, 1777)
Simnia purpurea Risso, 1826 (uncertain > nomen dubium )
Simnia spelta (Linnaeus, 1758)
Simnia spelta var. brevis Coen, 1949 accepted as Simnia spelta (Linnaeus, 1758)
Xandarovula aperta (G. B. Sowerby II, 1849) accepted as Simnia aperta (G. B. Sowerby II, 1849)
Xandarovula hyalina (Lorenz & Fehse, 2009) accepted as Simnia hyalina Lorenz & Fehse, 2009
Xandarovula patula (Pennant, 1777) accepted as Simnia patula (Pennant, 1777)