Parachondria stigmosa Watters, 2016
Subannularia storchi (L. Pfeiffer, 1861)
Weinlandipoma stricticostatum (H. von Maltzan)
Wrightudora suavis (C. de la Torre& P. Bartsch, 1941)
Pomatias subcampanulatum J.F. Mabille, 1886
Cyclotopsis subdiscoidea (G.B. Sowerby, 1850)
Tropidophora subdygana E. Fischer-Piette, 1949
Chondrothyra subegregia C. de la Torre & P. Bartsch,1938
Opisthosiphon subobtectum C. de la Torre & P. Bartsch,1941
Opisthosiphon subobturatum C. de la Torre& J. Henderson, 1920
Parachondria subreticulata (H. von Maltzan)
Tudorella sulcata (J.P.R. Draparnaud, 1805)
Tudorella sulcata mauretanica (J.B.P.A. Lamarck, 1811)
Tudorella sulcata melitense (G.B. Sowerby, 1843)
Tudorella sulcata multisulcata (V.L.V. Potiez& A. Michaud, 1838)
Tudorella sulcata pachya (P.M. Pallary, 1936)
Tudorella sulcata panormitana C.F. Sacchi, 1954
Choanopoma sumichrasti J.C.H. Crosse& P.H. Fischer, 1874
Chondropoma superbus J. Henderson & C.T. Simpson,1902
Tropidophora surda E. Fischer-Piette, F. Blanc& F. Salvat, 1969
Lithidion suturale E. Neubert, 2002
Chondropoma swifti (R.J. Shuttleworth, 1854)
Chondropoma swifti azuense P. Bartsch, 1946
Chondropoma swifti barahonense P. Bartsch, 1946
Chondropoma swiftianum (C.D. Weinland)
Annularisca tacrensis C. de la Torre & P. Bartsch,1941
Parachondria tappaniana (C.B. Adams, 1851)
Tudora tectilabre (C.B. Adams, 1849)
Chondrothyrium tejedori M.I. Sánchez Roig, 1951
Chondrothyretes tenebrata (C. de la Torre& P. Bartsch, 1939)
Chondrothyretes tenebrata montalvensis (C. de la Torre& P. Bartsch, 1938)
Abbottella tenebrosa G.T. Watters, 2013
Chondrothyrella tenebrosa (P.M.A. Morelet, 1849)
Abbottella tentorium (L. Pfeiffer, 1850)
Tropidophora tenuis (G.B. Sowerby, 1843)