Glessula subserena (R.H. Beddome, 1906)
Xerocerastus subteres (O. Böttger, 1910)
Chilonopsis subtruncatus E.A. Smith, 1892
Glessula subulata Budha & Naggs, 2017
Oreohomorus subuliacea Unknown
Obeliscus subuliformis (S. Moricand, 1836)
Curvella subvirescens (E.A. Smith, 1890)
Subulina sulcata L. Pfeiffer, 1881
Obeliscus sulcatus Adams, 1855
Glessula sumatrana E.C. Von Martens, 1864
Obeliscus swiftianus (L. Pfeiffer, 1852)
Obeliscus sylvaticus (J.B. von Spix, 1827)
Glessula tamakoshi Budha & Backeljau, 2017
Lamellaxis tamaulipensis (H.A. Pilsbry, 1903)
Glessula tenuispira (W.H. Benson, 1856)
Stenogyra terebraster (J.B.P.A. Lamarck, 1822)
Obeliscus teres F. Haas, 1949
Kempioconcha terrulenta (P.M.A. Morelet, 1883)
Obeliscus tessellatus A. Adams, 1855
Ischnocion tetraplax Barrientos, 1996
Glessula textilis (W.T. Blanford, 1866)
Pseudopeas thysvillense H.A. Pilsbry, 1919
Curvella thysvillensis H.A. Pilsbry, 1919
Curvella tonkiniana S.G.A. Jaeckel, 1950
Opeas tonkinorum J.F. Mabille, 1889
Glessula tornensis W.T. Blanford
Opeas toroense M. Connolly, 1923
Obeliscus toussaintianus (H.A. Pilsbry, 1908)
Dysopeas translucidum (F.C. Baker, 1927)
Glessula tribhuvana Budha, 2017
Vegrandinia trindadensis (A.S.H. Breure& A.C. dos Santos Coelho, 1976)
Ischnocion triptyx (H.A. Pilsbry, 1908)
Opeas tsiveryi K.C. Emberton & T.A. Pearce,2000
Eremopeas tuckeri (L. Pfeiffer, 1846)
Euonyma tugelensis (J.C. Melvill& J.H. Ponsonby, 1897)