Platydoris pulchra C.N.E. Eliot, 1904
Rostanga pulchra F.M. MacFarland, 1905
Halgerda punctata G.P. Farran, 1902
Montereina punctifera (F.D. Abraham, 1877)
Carminodoris punctulifera (L.S.R. Bergh, 1907)
Diaulula punctuolata (A.V.M.D. D'Orbigny,1837)
Discodoris purcina Er. Marcus & Ev. Marcus,1967
Geitodoris pusae (Er. Marcus, 1955)
Platydoris radiata (J.C. van Hasselt, 1824)
Jorunna ramicola M.C. Miller, 1996
Asteronotus raripilosus (F.D. Abraham, 1877)
Atagema rehderi Er. Marcus & Ev. Marcus,1970
Geitodoris reticulata C.N.E. Eliot, 1906
Rostanga risbeci K. Baba, 1991
Taringa robledales J.A. Ortea, L. Moro& J. Espinosa, 2015
Platydoris rolani K.M. Dorgan, Á. Valdés& T.M. Gosliner, 2002
Peltodoris rosae Á. Valdés & H.W. Bertsch,2010
Discodoris rosi J.A. Ortea, 1979
Geitodoris rubens (A.J.B.M. Vayssière,1919)
Jorunna rubescens (L.S.R. Bergh, 1876)
Thordisa rubescens D.W. Behrens& J.B. Henderson, 1981
Halgerda rubicunda K. Baba, 1949
Sclerodoris rubicunda (K. Baba, 1949)
Artachaea rubida (L.S.R. Bergh, 1881)
Montereina rubra (L.S.R. Bergh, 1905)
Rostanga rubra (A. Risso, 1818)
Atagema rugosa A. Pruvot-Fol, 1951
Platydoris sabulosa K.M. Dorgan, Á. Valdés& T.M. Gosliner, 2002
Diaulula sandiegensis (J.G. Cooper, 1863)
Platydoris sanguinea L.S.R. Bergh, 1905
Thordisa sanguinea K. Baba, 1955
Discodoris sauvagei (A. de Rochebrune, 1881)
Platydoris scabra (G.L.C.F.D. Cuvier, 1804)
Atagema scabriuscula (W.H. Pease, 1860)
Discodoris schmeltziana L.S.R. Bergh, 1880