Cyclophorus pyrotrema W.H. Benson, 1854
Opisthoporus quadrasi (J.G. Hidalgo, 1888)
Opisthoporus quadrasi palawanensis (J.G. Hidalgo, 1888)
Japonia quadricincta (E.A. Smith, 1895)
Cyclotus quelpartensis H.A. Pilsbry & Y. Hirase,1908
Japonia rabongensis (E.A. Smith, 1894)
Cyclophorus rafflesi W.J. Broderip& G.B. I Sowerby, 1829
Cyclophorus rafflesi eximius A. Mousson, 1848
Cyclophorus rafflesi eximius rouyeri R.A. Bullen, 1906
Boucardicus rakotoarisoni K.C. Emberton & T.A. Pearce,1999
Cyathopoma randalana K.C. Emberton & T.A. Pearce,1999
Boucardicus randalanai K.C. Emberton & T.A. Pearce,1999
Cyathopoma ranomafanae K.C. Emberton, 1994
Boucardicus ranomafanae K.C. Emberton, 1994
Chamalycaeus rathouisianus (P.M. Heude, 1882)
Theobaldius ravidus (W.H. Benson, 1851)
Cyclophorus reevei J.G. Hidalgo, 1866
Alycaeus regalis Foon & Liew, 2017
Leptopoma regulare (L. Pfeiffer)
Alycaeus reinhardti H.A. Pilsbry, 1900
Cyclotus reticulatus (E.C. Von Martens, 1867)
Boucardicus reticulatus K.C. Emberton, 2002
Opisthoporus rhiostoma P.V. Gredler, 1902
Chamalycaeus richthofeni (W.T. Blanford, 1863)
Alycaeus rimatus O. Böttger, 1893
Dicharax robustus Páll-Gergely & Hunyadi,2017
Alycaeus roebeleni O.F. von Möllendorff,1894
Leptopoma roepstorffianum G. Nevill, 1878
Platyrhaphe rubrotinctus J.T. Kuroda & T. Kano,1941
Pterocyclos rupestris (FOSSIL) (W.H. Benson, 1832 †)
Cyathopoma rusteri E. Fischer-Piette, Ch.P. Blanc, F. Blanc& F. Salvat, 1993
Alycaeus sadongensis E.A. Smith, 1895
Rhiostoma samuiense J.R. le B. Tomlin, 1931
Chamalycaeus satsumanus (H.A. Pilsbry, 1902)
Chamalycaeus satsumanus awaensis (H.A. Pilsbry & Y. Hirase,1904)