Gadila sauridens (R.B. Watson, 1879) Portorico
Cadulus scarabinoi G. Steiner & A. Kabat,2004 New Caledonia, Bassin des Loyauté
Bathycadulus segonzaci V. Scarabino, C.H. Caetano& A. Carranza, 2011 Gulf of Gascogne
Gadila senegalensis (É.A.A. Locard, 1898) Senegal, Dakar
Cadulus siberutensis S.G.A. Jaeckel, 1932 Indonesia, Siberut Islands
Cadulus simillimus R.B. Watson, 1879 Australia, Cape York
Gadila simpsoni J. Henderson, 1920 Portorico
Gadila singaporensis B. Sharp & H.A. Pilsbry,1898 Philippines, Camotes Island9 mm
Cadulus sofiae V. Scarabino, 1995 Réunion
Polyschides spectabilis (A.E. Verrill, 1885) USA, Maryland
Gadilopsis spiniformis (FOSSIL) Gardner, 1947 † Florida
Dischides splendens B.K. Raines, 2002 Easter Island
Gadila spreta (R. Tate & W.L. May,1900) South Australia
Gadila strangulata (É.A.A. Locard, 1897) Bay of Biscay
Gadila striata (H.A. Pilsbry& B. Sharp, 1898) Panama Bay
Gadila subcolubridens (N.H. Ludbrook, 1954) Somalia, Gulf of Aden
Cadulus subfusiformis (G.O. Sars, 1865) Spain, Almeria3 mm
Dischides subpolitus (FOSSIL) (A.E.M. Cossmann& M.A. Peyrot, 1916 †) Netherlands
Gadila subtilis H.P. Plate, 1908 Tanzania, Dar es Salaam
Gadila subula (J. Henderson, 1920) Cuba
Siphonodentalium summa (T.A. Okutani, 1964) Japan, Sagami Bay
Polyschides sutherlandi K.L. Lamprell& J.M. Healy, 1998 Australia, Cairns
Cadulus teliger H.J. Finlay, 1926 New Zealand, Plenty Bay
Cadulus tersus J. Henderson, 1920 Barbados
Polyschides tetraschistus (R.B. Watson, 1879) Bahamas7 mm
Polyschides tetrodon (H.A. Pilsbry& B. Sharp, 1898) Bahamas
Cadulus thallus (FOSSIL) (T.A. Conrad, 1834 †) Florida
Cadulus thielei H.P. Plate, 1908 Antarctica, Victoria Land
Gadila tolmiei (W.H. Dall, 1897) British Columbia, Vancouver Island
Cadulus transitorius J. Henderson, 1920 Florida
Cadulus tumidosus J.G. Jeffreys, 1877 Spain, Cadiz2,7 mm
Siphonodentalium tytthum R.B. Watson, 1879 Portorico
Cadulus unilobatus V. Scarabino& F. Scarabino, 2011 Gulf of Gascogne
Cadulus valdiviae S.G.A. Jaeckel, 1932 Somalia
Gadila vanuatuensis V. Scarabino, 2008 Vanuatu Island, New Hebrides