Sassia semitorta J.T. Kuroda & T. Habe,1961 Mozambique54 mm
Cymatiella sexcostata (R. Tate, 1888) South Australia21 mm
Ranularia sinensis (L.A. Reeve, 1844) Philippines, Balut Island78 mm
Cabestana spengleri (G. Perry, 1811) South Australia153 mm
Charonia spinosum (FOSSIL) (M. Rouault, 1849 †) France, Aquitaine
Ranularia springsteeni (A.G. Beu, 1987) Philippines, Zamboanga76 mm
Charonia subcorrugatum (FOSSIL) (A.V.M.D. D'Orbigny,1852 †) France, Aquitaine59 mm
Charonia subcorrugatum? (Orbigny, 1852)
Sassia subdistorta (J.B.P.A. Lamarck, 1822) Australia, Victoria53 mm
Gyrineum subgranulatus (FOSSIL) (Orbigny, 1852 †) France, Aquitaine
Charonia subspinosum (FOSSIL) (J.P.S. Grateloup,1833 †) France, Aquitaine
Gelagna succincta (C. Linnaeus, 1771) Philippines, Cebu84 mm
Cabestana tabulata (K.T. Menke, 1843) Australia, Albany
Fusitriton takedai T. Habe, 1979 Japan
Charonia tarbelliana (FOSSIL) (J.P.S. Grateloup,1848 †) Austria
Charonia tarbelliana transiens (FOSSIL) Baldi, 1973 † Hungary, Bükk
Sassia tatei (FOSSIL) A.G. Beu, 2010 †
Turritriton tenuiliratus (C.E. Lischke, 1873) Philippines, Samar Island48,6 mm
Turritriton tenuiliratus fittkaui M. Parth, 1991 Philippines, Palawan Island45 mm
Ameranella terrysmithae (FOSSIL) (C.J.S. Hickman, 1980 †) Oregon
Antarctiranella tessela (FOSSIL) J.D. Stilwell & al.,2004 † Antarctica, Seymour Island
Ranularia testudinaria (A. Adams & L.A. Reeve,1850) Philippines, Camotes Island77 mm
Cabestana tetleyi (FOSSIL) (Powell& J.A. Bartrum, 1929 †)
Sassia textilis (FOSSIL) R. Tate, 1888 † Australia, Mount Martha
Monoplex thersites (L.A. Reeve, 1844) Philippines, Sulu Sea43,2 mm
Cymatium tigrinum (W.J. Broderip, 1833) Panama, Casaya Island
Sassia tortirostris (FOSSIL) R. Tate, 1888 † Australia, Victoria
Monoplex tranquebaricus J.B.P.A. Lamarck, 1816 Senegal, Dakar58,9 mm
Charonia triangula (FOSSIL) Vasseur, 1881 † France, Brittany
Monoplex trigonus (J.F. Gmelin, 1791) Angola47,7 mm
Ranularia trilineata (L.A. Reeve, 1844) Egypt, Sinai Peninsula83 mm
Ranularia tripa (J.B.P.A. Lamarck, 1822) India, Madras73,1 mm
Cymatiella tritonea (FOSSIL) (J.P.S. Grateloup,1840 †) France, Aquitaine20 mm
Charonia tritonis (C. Linnaeus, 1758) Society Islands452 mm
Ranella tubercularis (FOSSIL) A. Risso, 1826 † India, Meghalaya