Pteropurpura quinquelobata (G.B. Sowerby, 1879)
Xymenella quinzioi (FOSSIL) C. Nielsen, 2003 †
Murex quirosensis (FOSSIL) F. Hodson, 1931 †
Paratrophon quoyi (L.A. Reeve, 1846)
Chicoreus rachelcarsonae E.J. Petuch, 1987
Hexaplex radix (J.F. Gmelin, 1791)
Coralliophila radula (A. Adams, 1855)
Caelobassus radwini (FOSSIL) J.D. Stilwell& Zinsmeister, 1992 †
Timbellus radwini (M.G. Harasewych& K.R. Jensen, 1979)
Favartia radwini (W.K. Emerson& A. D'Attilio, 1970)
Siphonochelus radwini W.K. Emerson & D'Attilio,1979
Chicoreus ramosus (C. Linnaeus, 1758)
Typhis ramosus T. Habe & S. Kosuge, 1971
Rapa rapa (C. Linnaeus, 1758)
Rapana rapiformis (I. von Born, 1778)
Coralliophila raramaculata S. Kosuge & C. Fernández,1989
Lyrotyphis rarus (FOSSIL) M.L Tembrock, 1963 †
Favartia rauli (J. Espinosa, 1990)
Morula rawsoni J.C. Melvill, 1897
Nodulotrophon raymondi (C.L. Moody, 1916)
Dermomurex raywalkeri R. Houart, 1986
Vokesimurex rectaspira R. Houart & V. Héros,2015
Panamurex recticanalis N.E. Weisbord, 1962
Vokesimurex rectirostris (G.B. II Sowerby, 1841)
Gemixystus recurvatus (J.C. Verco, 1909)
Vokesimurex recurvirostris (W.J. Broderip, 1832)
Vokesimurex recurvirostrum (FOSSIL) (W.J. Broderip, 1833 †)
Trophon recurvus (F.C.L. Kochin R.A. Philippi, 1846)
Murex reedi (FOSSIL) Wood, 1877 †
Scabrotrophon regina (R. Houart, 1986)
Takia regius (W.J. Swainson, 1821)
Hexaplex regius W.J. Swainson, 1821
Ocinebrina reinai G. Bonomolo & F. Crocetta,2012
Ocenebra renierii (FOSSIL) (O.G. Michelotti, 1842 †)
Purpurellus repetiti (FOSSIL) E.H. Vokes, 1970 †