Cypraedia reedi (FOSSIL) Abbass, 1967 † Egypt, Fayium
Dissona reflexa C.N. Cate, 1973 Japan
Simnia regularoidea T.H. Aldrich 1921
Phenacovolva rehderi C.N. Cate, 1973 China, Zhejiang41 mm
Prosimnia renovata T. Iredale, 1930 Philippines, Cebu9 mm
Cyphoma rhomba C.N. Cate, 1978 Haiti36,3 mm
Quasisimnia robertsoni (C.N. Cate, 1973) Taiwan15 mm
Diminovula rosadoi F.Jr. Lorenz & D. Fehse,2009 Mozambique7 mm
Phenacovolva rosea (A. Adams, 1854) Philippines, Bohol Island43 mm
Primovula roseomaculata (M.M. Schepman, 1909) Japan, Wakayama9,4 mm
Primovula roseomaculata florida (J.T. Kuroda, 1958) Japan, Wakayama8 mm
Primovula rosewateri (C.N. Cate, 1973) Philippines, Bohol Island12 mm
Simnia rostralina (FOSSIL) G.P. Deshayes, 1865 † France, Paris Basin
Simnia rufa G.B. II Sowerby, 1832 Ecuador13 mm
Hiatavolva rugosa (C.N. Cate& M. Azuma in C.N. Cate, 1973) Japan, Wakayama22 mm
Dentiovula rutherfordiana (C.N. Cate, 1973) Australia, Capricorn Channel12 mm
Diminovula sandrae F.Jr. Lorenz & D. Fehse,2011 Red Sea
Primovula santacarolinensis C.N. Cate, 1978 South Africa8 mm
Transovula schefferi (FOSSIL) A. De Gregorio, 1880 †
Phenacovolva schmidi D. Fehse & V. Wiese, 1993 Thailand, Phuket39 mm
Simnia scobina Garvie 1996
Simnia sculptura (C.N. Cate, 1973) Angola8,88 mm
Simnia semen (FOSSIL) (J.L.M. Defrance, 1825 †) Hungary, Borsodbóta11 mm
Procalpurnus semistriatus (W.H. Pease, 1862) Philippines, Mactan Island21 mm
Prosimnia semperi (H.C. Weinkauff, 1881) Philippines, Mactan Island14 mm
Simnia senegalensis (F.A. Schilder, 1931) Gabon, Sao Tomé Island10,34 mm
Cypraedia separabilis (FOSSIL) (Schilder 1928 †)
Rotaovula septemmacula (M. Azuma, 1974) Philippines, Balicasag Island9 mm
Pseudosimnia shikamai (C.N. Cate, 1973) Japan18 mm
Kuroshiovolva shingoi M. Azuma & C.N. Cate,1971 Philippines, Balicasag Island25 mm
Cyphoma signatum H.A. Pilsbry& J.T.L. McGinty, 1939 Florida Keys30 mm
Cuspivolva singaporica Fehse & Koh, 2016
Cuspivolva singularis (C.N. Cate, 1973) South Africa, Park Rynie8,3 mm
Margovula somaliensis (D. Fehse, 2001) Philippines, Leyte11,1 mm
Simnia spelta (C. Linnaeus, 1758) Italy, Cannizzaro15 mm