Planispira quadrifasciata E.J. Le Guillou, 1842
Chloritis quadrivolvis (E.C. Von Martens, 1865)
Exiligada qualis T. Iredale, 1939
Chloritis quercina L. Pfeiffer, 1860
Chloritis quercina hombroni L. Pfeiffer, 1860
Amplirhagada questroana G.A. Solem, 1981
Rydleya quinquelirata (E.A. Smith, 1890)
Setobaudinia quinta F. Köhler, 2011
Camaena quoyi (G.P. Deshayes, 1834)
Pleuroxia radiata C. Hedley, 1905
Rhagada radleyi H.B. Preston, 1908
Labyrinthus raimondii (R.A. Philippi, 1867)
Thersites rainbirdi J.C. Cox, 1870
Arnhemtrachia ramingining F. Köhler & F. Criscione,2013
Zachrysia ramsdeni H.A. Pilsbry, 1928
Zachrysia rangelina (L. Pfeiffer, 1854)
Thersites rawnesleyi J.C. Cox, 1873
Westraltrachia recta G.A. Solem, 1984
Setobaudinia rectilabrum (E.A. Smith, 1894)
Cristilabrum rectum G.A. Solem, 1988
Papuina redempta J.C. Cox, 1873
Figuladra reducta (T. Iredale, 1937)
Obba reeveana (L. Pfeiffer, 1846)
Amphidromus reflexilabris M.M. Schepman, 1892
Amphidromus reflexilabris haneilanus (B. Rensch, 1931)
Amplirhagada regia F. Köhler, 2010
Baudinella regia G.A. Solem, 1985
Torresitrachia regula G.A. Solem, 1979
Chloritis rehsei (E.C. Von Martens, 1883)
Rhagada reinga (L. Pfeiffer, 1846)
Sinumelon remissum T. Iredale, 1937
Chloritis remoratrix L.J. Morlet, 1893
Camaena renaltiana P.M. Heude
Crystallopsis rennelensis W.J. Clench, 1958
Ningbingia res G.A. Solem, 1981