Calophos rohri (FOSSIL) (R.F. Rutsch, 1942 †)
Nassarius roissyi (G.P. Deshayes, 1832)
Nassarius roseae T. Cossignani, 2017
Globinassa roseae (FOSSIL) E.J. Petuch, 1991 †
Antillophos roseatus (R.B. Hinds, 1844)
Nassarius rostharsi (FOSSIL) (P. Partschin R. Hoernes, 1870 †)
Nassarius rosthorni (FOSSIL) (P. Partsch, 1856 †)
Reticunassa rotunda (J.C. Melvill & R. Standen,1896)
Cyllene royana (T. Iredale, 1924)
Cyllene rubrolineata G.B. II Sowerby, 1870
Nassarius rubusindicus (FOSSIL) C.H. Oostingh, 1939 †
Antillophos rufocinctus (A. Adams, 1851)
Nassarius rufus (R.W. Dunker, 1847)
Dorsanum ruidum (FOSSIL) M.A. Peyrot, 1924 †
Antillophos rutschi (FOSSIL) A.A. Olsson, 1942 †
Nassarius sacyi (FOSSIL) M.A. Peyrot, 1924 †
Buccitriton sagenum (FOSSIL) (T.A. Conrad, 1833 †)
Nassarius salbriacensis (FOSSIL) M.A. Peyrot, 1924 †
Nassarius salina (FOSSIL) A.A. Olsson, 1928 †
Nassarius salinensis (FOSSIL) R. Tournouer, 1876 †
Nassaria samaranga K. Martin, 1884
Nassarius samiae H.H. Kool, 2006
Nassarius sanctaehelenae (A. Adams, 1852)
Nassaria sanzaiana T. Shuto, 1962
Nassarius saucatsensis (FOSSIL) M.A. Peyrot, 1924 †
Nassarius scabriusculus (W.L. Powys, 1835)
Nassarius scalaris (A. Adams, 1852)
Nassarius scalaris (FOSSIL) (S. Borson, 1825 †)
Phos scalaroides A. Adams, 1851
Scalanassa scalaspira (FOSSIL) (T.A. Conrad, 1868 †)
Dorsanum scalatum (FOSSIL) A. Heilprin, 1891 †
Nassarius scaldisianus (FOSSIL) W. Adam & M. Glibert,1976 †
Ilyanassa schizopyga (FOSSIL) (W.H. Dall, 1892 †)
Nassarius schizopyga (FOSSIL) W.H. Dall, 1892 †
Nassarius schlotheimi (FOSSIL) A.H.E. Beyrich, 1854 †