Trochus reevei (R.P. Montrouzier, 1861)
Clanculus relictus S. Kosuge & Koizumi, 1990
Monodonta retusus T.A. de M. Monterosato,1888
Coelotrochus rex (B.A. Marshall, 1998)
Jujubinus rhenanus (FOSSIL) (M.S. Merianin C.L.F. von Sandberger, 1860 †)
Ethaliella rhodomphala (E.A. Smith, 1903)
Monilea rhodomphalus S.M. Souverbie in S.M. Souverbie& R.P. Montrouzier, 1875
Phorcus richardi (B.C.M. Payraudeau, 1826)
Clanculus richeri C. Vilvens, 2000
Fossarina rimata (F.W. Hutton, 1884)
Clanculus ringens (K.T. Menke, 1843)
Monilea riorapelensis (FOSSIL) C. Nielsen & al., 2004 †
Trochus robertsi H.A. Pilsbry, 1889
Stomatella rosacea W.H. Pease, 1867
Gibbula rosea (J.F. Gmelin, 1791)
Broderipia rosea (W.J. Broderip, 1834)
Tallorbis roseola G. Nevill & H. Nevill,1869
Umbonium roseopunctata J.T. Kuroda & T. Kinoshita,1956
Cantharidus roseus (F.W. Hutton, 1873)
Monodonta rotellaris (FOSSIL) (O.G. Michelotti, 1847 †)
Camitia rotellina (A.A. Gould, 1849)
Trochus rotelloides E. Forbes, 1846
Lithotrochus rothi (FOSSIL) Damborenea & Ferrari,2008 †
Cantharidella rottnestensis J.C. Verco, 1911
Trochus rubicatus R.A. Philippi, 1848
Jujubinus rubioi E. Rolán & J. Templado,2001
Microtis rubra (G.P. Deshayes, 1843)
Stomatolina rubra (J.B.P.A. Lamarck, 1822)
Austrocochlea rudis (J.E. Gray, 1826)
Stomatolina rufescens (J.E. Gray, 1847)
Cantharidus rufozona (A. Adams, 1853)
Ethalia rufula A.A. Gould, 1861
Trochus rugosus (FOSSIL) J.P.S. Grateloup, 1832 †
Trochus rupestris (FOSSIL) Hudleston †
Jujubinus ruscurianus (H.C. Weinkauff, 1868)