Phycothais reticulata (J.R.C. Quoy& J.P. Gaimard, 1833)
Murexsul reunionensis R. Houart, 1985
Nassa reussi (FOSSIL) Martin, 1879 †
Gemixystus rhodanos R. Houart, 2004
Coralliophila rhomboidea S. Kosuge & M. Oliverio,2004
Naquetia rhondae R. Houart & F.Jr. Lorenz,2015
Rhopalimurex rhopalicus (FOSSIL) (R.A. Philippi, 1887 †)
Murex rhysus (FOSSIL) R. Tate, 1888 †
Favartia richardbinghami (E.J. Petuch, 1987)
Coralliophila richardi (P. Fischer, 1882)
Timbellus richeri (R. Houart, 1987)
Leptotrophon richeri R. Houart, 1995
Babelomurex ricinuloides (M.M. Schepman, 1911)
Drupa ricinus (C. Linnaeus, 1758)
Drupa ricinus arachnoides J.B.P.A. Lamarck, 1816
Drupa ricinus lischkei (J.G. Hidalgo, 1904)
Leptotrophon rigidus R. Houart, 1995
Ecphora rikeri (FOSSIL) E.J. Petuch, 1988 †
Hexaplex rileyi D'Attilio & B.W. Myers,1984
Drupa ringens (FOSSIL) G.P. Deshayes, 1865 †
Siphonochelus riosi (H.W. Bertsch & D'Attilio,1980)
Chicoreus riparius (FOSSIL) E.H. Vokes, 1967 †
Gemixystus rippingalei (R. Houart, 1998)
Chicomurex ritae R. Houart, 2013
Chicoreus roberti L. Bozzetti, 2015
Coralliophila robillardi (E. Liénard, 1870)
Tripterotyphis robustus (J.C. Verco, 1895)
Coralliophila rocasuciae B.W. Myers & A. D'Attilio,1990
Morula rodgersi R. Houart, 2000
Timbellus rogersi (FOSSIL) R. Portell & E.H. Vokes,1997 †
Nucella rolani (C. Bogi & I. Nofroni,1984)
Ceratostoma rorifluum (A. Adams & L.A. Reeve,1849)
Mipus rosaceus (E.A. Smith, 1903)
Orania rosadoi R. Houart, 1998
Chicomurex rosadoi R. Houart, 1999