- rocae, Plagiodontes rocae A. Doering, 1881 - (ODONTOSTOMIDAE)
- rocai, Cerion tridentatum rocai W.J. Clench & C.G. Aguayo, 1953 - (CERIONIDAE)
- rocai, Farcimen rocai C. de la Torre & P. Bartsch, 1942 - (MEGALOMASTOMIDAE)
- rocai, Blaesospira rocai C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- rocai, Eutudorops rocai C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- rocai, Troschelvindex rocai (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- rocai, Chondrothyrium violaceum rocai C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- rocai, Geminicoptis rocai (C. de la Torre, 1929) - (UROCOPTIDAE)
- Rocalaria, Genus Rocalaria del Rio, 2012 † (FASCIOLARIIDAE) (FOSSIL)
- rocandioi, Candidula rocandioi (A. Ortiz De Zárate, 1950) - (HYGROMIIDAE)
- rocandioi, Candidula rocandioi Auct. non D.M. Ortiz - syn of: Candidula gigaxii (L. Pfeiffer, 1850) - (HYGROMIIDAE)
- rocasuciae, Coralliophila rocasuciae B.W. Myers & A. D'Attilio, 1990 - (MURICIDAE)
- rocayana, Helix rocayana D'Orbigny, 1835 - syn of: Naesiotus rocayanus (A.V.M.D. D'Orbigny, 1835) - (HELICIDAE)
- rocayanus, Naesiotus rocayanus (A.V.M.D. D'Orbigny, 1835) - (BULIMULIDAE)
- roccai, Connexochiton roccai Dell'Angelo & al., 2013 † - (ISCHNOCHITONIDAE) (FOSSIL)
- roccatii, Polytoxon roccatii C. Pollonera, 1906 - (UROCYCLIDAE)
- Roccellaria, syn of: Genus Rocellaria H.M.D. De Blainville, 1828 (GASTROCHAENIDAE)
- roccellicola, Napaeus roccellicola (P.B. Webb & S. Berthelot, 1833) - (ENIDAE)
- roccellicola, Napaeus roccellicola Auct. - syn of: Napaeus variatus (P.B. Webb & S. Berthelot, 1833) - (ENIDAE)
- Rocellaria, Genus Rocellaria H.M.D. De Blainville, 1828 (GASTROCHAENIDAE)
- rocellaria, Petricola rocellaria J.B.P.A. Lamarck, 1818 - syn of: Petricola lithophaga (A. Retzius, 1788) - (VENERIDAE)
- rochai, Tomigerus rochai H.F.A. von Ihering, 1905 - (ODONTOSTOMIDAE)
- rochai, Rhinus rochai F.C. Baker, 1913 - (SIMPULOPSIDAE)
- rochai, Tylostoma rochai H.F.A. von Ihering, 1907 † - (TYLOSTOMATIDAE) (FOSSIL)
- rochai suturalis, Rhinus rochai suturalis F.C. Baker, 1914 - (SIMPULOPSIDAE)
- rochai taipuensis, Rhinus rochai taipuensis F.C. Baker, 1914 - (SIMPULOPSIDAE)
- Rochanaia, syn of: Genus Bartlettia H. Adams, 1867 (ETHERIIDAE)
- rochatiana, Lambis rochatiana A.V.M.D. D'Orbigny, 1850 † - (STROMBIDAE) (FOSSIL)
- rochatianum, Tylostoma rochatianum (A.V.M.D. D'Orbigny, 1850 †) - (TYLOSTOMATIDAE) (FOSSIL)
- rochdalense, Exoclitendoceras rochdalense Kröger & Landing, 2008 † - (PROTEROCAMEROCERATIDAE) (FOSSIL)
- rochebrunei, Nenia rochebrunei F.P. Jousseaume, 1900 - (CLAUSILIIDAE)
- rochebrunei, Aspatharia rochebrunei (F.P. Jousseaume, 1886) - (IRIDINIDAE)
- rochebrunei, Mactra rochebrunei É. Lamy, 1916 - (MACTRIDAE)
- rochebrunei, Mysella rochebrunei (W.H. Dall, 1908) - (MONTACUTIDAE)
- rochebrunei, Nassa rochebrunei É.A.A. Locard, 1887 - syn of: Nassarius nitidus (J.G. Jeffreys, 1867) - (NASSARIIDAE)
- rochebrunei, Tapes rochebrunei É.A.A. Locard, 1886 - syn of: Polititapes aureus (J.F. Gmelin, 1791) - (VENERIDAE)
- rochebruni, Pruvotfolia rochebruni J.A. Ortea, L. Moro & G.M. Caballer, 2002 - (FACELINIDAE)
- rochebruni, Hypselostoma rochebruni J.F. Mabille, 1887 - (HYPSELOSTOMATIDAE)
- rochebruni, Lepidopleurus rochebruni F.P. Jousseaume, 1894 - syn of: Callistochiton adenensis (E.A. Smith, 1891) - (LEPTOCHITONIDAE)
- rochebruni, Murex rochebruni N.J. Poirier, 1883 - syn of: Triplex torrefactus (G.B. II Sowerby, 1841) - (MURICIDAE)
- rochebruni, Pollicaria rochebruni J.F. Mabille, 1887 - (PUPINIDAE)
- rochebruni, Lyrodiscus rochebruni (J.F. Mabille, 1882) - (ZONITIDAE)
- Rochebrunia, syn of: Subgenus Tropidophora (Ligatella) E.C. Von Martens, 1880 (POMATIIDAE)
- rochebruniana, Moncetia rochebruniana J.R. Bourguignat, 1886 - syn of: Moncetia anceyi J.R. Bourguignat, 1885 - (IRIDINIDAE)
- rochebruniana, Microcolpia rochebruniana J.R. Bourguignat, 1884 - syn of: Microcolpia coutagniana J.R. Bourguignat, 1884 - (MELANOPSIDAE)
- rochebrunii, Gonionenia rochebrunii (F.P. Jousseaume, 1900.) - (CLAUSILIIDAE)
- rochechouarti, Lamprotula rochechouarti (P.M. Heude, 1875) - (UNIONIDAE)
- rochechourti, Lamprotula rochechourti (P.M. Heude, 1875) - syn of: Lamprotula rochechouarti (P.M. Heude, 1875) - (UNIONIDAE)
- Rochefortia, Genus Rochefortia C. Vélain, 1878 (LASAEIDAE)
- Rochefortina, Genus Rochefortina W.H. Dall, 1924 (SEMELIDAE)
- Rochefortula, syn of: Genus Borniola T. Iredale, 1924 (LASAEIDAE)
- Rochella, Genus Rochella Freneix, 1972 † (CARDIIDA (UNASSIGNED)) (FOSSIL)
- rocheri, Epitonium rocheri P. Lozouet, Lesport & Renard, 2001 † - (EPITONIIDAE) (FOSSIL)
- rochi, Ancyloceras rochi Sarkar, 1955 † - (ANCYLOCERATIDAE) (FOSSIL)
- rochi, Toxoceratoides rochi T.L. Casey, 1961 † - (ANCYLOCERATIDAE) (FOSSIL)
- rochi, Ancyloceras rochi Dimitrova, 1967 † - (ANCYLOCERATIDAE) (FOSSIL)
- rochi, Radix rochi A.E.J. Férussac, 1807 - syn of: Radix labiata (E.A. Rossmässler, 1835) - (LYMNAEIDAE)
- rochi, Bankia rochi C.E. von Moll, 1931 - (TEREDINIDAE)
- Rochia, syn of: Genus Lyrodus W.G. Binney, 1870 (TEREDINIDAE)
- Rochie, syn of: Genus Teredo C. Linnaeus, 1758 (TEREDINIDAE)
- rocinela, Doris rocinela W.E. Leach, 1852 - syn of: Acanthodoris pilosa (P.C. Abildgaard in O.F. Müller, 1789) - (DORIDIDAE)
- rocinela, Acanthodoris rocinela W.E. Leach, 1852 - syn of: Acanthodoris pilosa (P.C. Abildgaard in O.F. Müller, 1789) - (ONCHIDORIDIDAE)
- rockallensis, Lopheliella rockallensis L. Hoffman, B. van Heugten & M.S.S. Lavaleye, 2008 - (SKENEIDAE)
- rockenensis, Pleurotomaria rockenensis Cox † - (PLEUROTOMARIIDAE) (FOSSIL)
- rockensis, Belliscala rockensis L.W. Stephenson, 1941 † - (EPITONIIDAE) (FOSSIL)
- rockfordensis, Pseudoplagiothyra praecursor rockfordensis (W.H. Webster, 1906 †) - (NATICOPSIDAE) (FOSSIL)
- rockhamptonensis, Sphaerospira rockhamptonensis J.C. Cox, 1873 - (CAMAENIDAE)
- rockymontana, Platymya rockymontana Imlay, 1967 † - (BIVALVIA INCERTAE SEDIS) (FOSSIL)
- rockymontana, Spiroscala rockymontana (Girty, 1934 †) - (GOSSELETINIDAE) (FOSSIL)
- rockymontanum, Anematina rockymontanum (Shimer, 1926 †) - (ELASMONEMATIDAE) (FOSSIL)
- rockymontanus, Goniocyclus rockymontanus Gordon Jr., 1986 † - (PERICYCLIDAE) (FOSSIL)
- rocquignyi, Natica rocquignyi E. Fischer-Piette, 1942 - (NATICIDAE)
- rocroii, Sveltia rocroii P. Bouchet & R.E. Petit, 2002 - (CANCELLARIIDAE)
- rocroii, Cadulus rocroii V. Scarabino, 2008 - (GADILIDAE)
- Rocroithys, Genus Rocroithys A.V. Sysoev & P. Bouchet, 2001 (RAPHITOMIDAE)
- Rodachia, Genus Rodachia Korn, 2002 † (CYMACLYMENIIDAE) (FOSSIL)
- rodakinensis, Cretica virginea rodakinensis V. Wiese, 1991 - (CLAUSILIIDAE)
- rodana, Xerocrassa rodana P. Fagot, 1906 - syn of: Amandana salvanae (P. Fagot, 1886) - (HYGROMIIDAE)
- rodanensis, Xerocrassa rodanensis P. Fagot, 1907 - syn of: Amandana salvanae (P. Fagot, 1886) - (HYGROMIIDAE)
- rodata, Syrnola rodata (C.R. Laws, 1940 †) - (PYRAMIDELLIDAE) (FOSSIL)
- rodatzi, Lissachatina fulica rodatzi (R.W. Dunker, 1852) - (ACHATINIDAE)
- rodatzi, Barbatia rodatzi R.W. Dunker, 1866 - syn of: Barbatia amygdalumtostum (P.F. Röding, 1798) - (ARCIDAE)
- rodatzi, Mactra rodatzi R.W. Dunker, 1850 - syn of: Mulinia edulis (King, 1831) - (MACTRIDAE)
- rodatzi, Polinices rodatzi M.M. Schepman, 1901 - syn of: Polinices lacteus L. Guilding, 1834 - (NATICIDAE)
- rodatzi, Tapes rodatzi R.W. Dunker, 1848 - syn of: Tapes sulcarius (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- rodatzii, Polinices rodatzii R.A. Philippi, 1852 - syn of: Polinices lacteus L. Guilding, 1834 - (NATICIDAE)
- rodburgensis, Anisocardia rodburgensis L.R. Cox, 1947 † - (ARCTICIDAE) (FOSSIL)
- rodburgensis, Plagiostoma rodburgensis Whidborne, 1883 † - (LIMIDAE) (FOSSIL)
- roddae, Chaetopleura roddae A. Ferreira, 1983 - syn of: Chaetopleura roddai A. Ferreira, 1983 - (CHAETOPLEURIDAE)
- roddai, Spirolaxis roddai H.S. Ladd, 1982 - syn of: Spirolaxis rotulacatharinea (J.C. Melvill & R. Standen, 1903) - (ARCHITECTONICIDAE)
- roddai, Pseudomalaxis roddai H.S. Ladd, 1982 - syn of: Spirolaxis rotulacatharinea (J.C. Melvill & R. Standen, 1903) - (ARCHITECTONICIDAE)
- roddai, Chaetopleura roddai A. Ferreira, 1983 - (CHAETOPLEURIDAE)
- roddai, Shasticrioceras roddai C.E. Murphy, 1975 † - (MEGACRIOCERATIDAE) (FOSSIL)
- roddana, Mygallia roddana Saul & W.P. Popenoe, 1962 † - (TANCREDIIDAE) (FOSSIL)
- roddana, Nelltia roddana Saul, 1973 † - (TELLINIDAE) (FOSSIL)
- Rodeckia, Genus Rodeckia Korn 2002 † (KOSMOCLYMENIIDAE) (FOSSIL)
- rodejai, Turbonilla rodejai A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- rodent, Neilonella rodent (T.A. Okutani & R. Kawamura, 2002) - (NEILONELLIDAE)
- rodent, Tindaria rodent T.A. Okutani & R. Kawamura, 2002 - syn of: Neilonella rodent (T.A. Okutani & R. Kawamura, 2002) - (TINDARIIDAE)
- rodeoense, Bittium rodeoense (B.L. Clark, 1922) - (CERITHIIDAE)
- rodericensis, Thiara rodericensis (E.A. Smith, 1876) - (THIARIDAE)
- rodericensis, Vaginulus rodericensis E.A. Smith, 1876 - (VERONICELLIDAE)
- rodgersi, Vexillum rodgersi R. Salisbury & J. Wolff, 2005 - (COSTELLARIIDAE)
- rodgersi, Morula rodgersi R. Houart, 2000 - (MURICIDAE)
- rodgersi, Paracomitas rodgersi F.S. MacNeil, 1960 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- rodhensis, Rissoa rodhensis A. Verduin, 1985 - (RISSOIDAE)
- Rodighieroites, Genus Rodighieroites Company , 1987 † (NEOCOMITIDAE) (FOSSIL)
- rodioni, Goniatites rodioni W. Korn & Ebbighausen, 2006 † - (GONIATITIDAE) (FOSSIL)
- rodmani, Dermatobranchus rodmani T.M. Gosliner & S.J. Fahey, 2011 - (ARMINIDAE)
- rodnae, Plathystimulus rodnae (A.V. Grossu & D. Lupu, 1965) - (AGRIOLIMACIDAE)
- rodneyi, Ptychocaulus rodneyi Rohr, 1980 † - (PTYCHOCAULIDAE) (FOSSIL)
- rodomaculata, Felimida rodomaculata (J.A. Ortea & Á. Valdés, 1992) - (CHROMODORIDIDAE)
- rodomica, Margaritifera rodomica Ziuganov & al., 1994 - syn of: Margaritifera marocana P.M. Pallary, 1918 - (MARGARITIFERIDAE)
- rodostoma, Procladiscites rodostoma (Tommasi, 1899 †) - (CLADISCITIDAE) (FOSSIL)
- rodrigoi, Cerion rodrigoi S.J. Gould, 1997 - (CERIONIDAE)
- rodriguensis, Haliotis rugosa rodriguensis B. Owen, 2013 - (HALIOTIDAE)
- rodriguensis, Scacchia rodriguensis (P.G. Oliver & A.M. Holmes, 2004) - (LASAEIDAE)
- rodriguesensis, Scacchia rodriguesensis P.G. Oliver & A.M. Holmes, 2004 - (LASAEIDAE)
- rodriguesensis, Rhomboidella rodriguesensis P.G. Oliver & A.M. Holmes, 2004 - (MYTILIDAE)
- rodriguez, Melaniella camagueyana rodriguez C.G. Aguayo & M.L. Jaume, 1954 - (OLEACINIDAE)
- rodriguezae, Bostryx rodriguezae W.K. Weyrauch, 1967 - (BULIMULIDAE)
- rodriguezensis, Dancea rodriguezensis (J.C.H. Crosse, 1873) - (HELICARIONIDAE)
- rodriguezensis, Africanogyrus rodriguezensis (J.C.H. Crosse, 1873) - (PLANORBIDAE)
- rodriguezensis, Cyclotopsis haemastoma rodriguezensis J.C.H. Crosse, 1873 - (POMATIIDAE)
- rodriguezensis, Nesopupa rodriguezensis M. Connolly, 1925 - (VERTIGINIDAE)
- rodriguezi, Venus rodriguezi R.A. Philippi, 1887 - syn of: Leukoma thaca (Molina, 1782) - (VENERIDAE)
- rodriguezii, Brachidontes rodriguezii (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- rodrii, Turbonilla rodrii A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- rodulfi, Chione rodulfi D. Frassinetti & Covacevich, 1993 † - (VENERIDAE) (FOSSIL)
- roebeleni, Alycaeus roebeleni O.F. von Möllendorff, 1894 - (CYCLOPHORIDAE)
- roebeleni, Hypselostoma roebeleni O.F. von Möllendorff, 1894 - (HYPSELOSTOMATIDAE)
- roebeleni, Discartemon roebeleni (O.F. von Möllendorff, 1894) - (STREPTAXIDAE)
- roebucki, Urocyclus roebucki H.R. Simroth, 1910 - (UROCYCLIDAE)
- roeckeli, Africonus roeckeli (E. Rolán, 1980) - (CONIDAE)
- roedeli, Glans roedeli (Ravn 1939) † - (CARDITIDAE) (FOSSIL)
- roedereri, Sitala roedereri E. Fischer-Piette, F. Blanc & F. Salvat, 1975 - (ARIOPHANTIDAE)
- roedingi, Haliotis roedingi K.T. Menke, 1844 - syn of: Haliotis squamosa J.E. Gray, 1826 - (HALIOTIDAE)
- roegerae, Melanella roegerae (B.C. Cotton & F.C. Godfrey, 1932) - (EULIMIDAE)
- roegli, Dilatilabrum roegli M. Harzhauser, 2001 † - (STROMBIDAE) (FOSSIL)
- roei, Haliotis roei Gray, 1826 - (HALIOTIDAE)
- roei, Euspira roei Cox, 1930 † - (NATICIDAE) (FOSSIL)
- roemeri, Acmaea roemeri (Morris & Lycett) † - (ACMAEIDAE) (FOSSIL)
- roemeri, Cochlioceras roemeri Dzik, 1984 † - (BALTOCERATIDAE) (FOSSIL)
- roemeri, Cymbularia roemeri E.F.R.K. Koken & J. Perner, 1925 † - (BELLEROPHONTIDAE) (FOSSIL)
- roemeri, Bellerophon roemeri Fliegel, 1901 † - (BELLEROPHONTIDAE) (FOSSIL)
- roemeri, Bucanopsina roemeri J. Perner, 1903 † - syn of: Bucanopsina calypso (J. Perner, 1903 †) - (BUCANIIDAE) (FOSSIL)
- roemeri, Discoceras roemeri E. Strand, 1934 † - (DISCOCERATIDAE) (FOSSIL)
- roemeri, Donax roemeri R.A. Philippi, 1849 - (DONACIDAE)
- roemeri, Poleumita roemeri Lindström, 1884 † - syn of: Oriostoma roemeri (Lindström, 1884 †) - (EUOMPHALIDAE) (FOSSIL)
- roemeri, Gastrioceras roemeri A. Schmidt, 1929 † - syn of: Glaphyrites roemeri (A. Schmidt, 1929 †) - (GASTRIOCERATIDAE) (FOSSIL)
- roemeri, Gastrioceras roemeri C. Gemmellaro, 1887 † - syn of: Altudoceras roemeri (C. Gemmellaro, 1887 †) - (GASTRIOCERATIDAE) (FOSSIL)
- roemeri, Glaphyrites roemeri (A. Schmidt, 1929 †) - (GLAPHYRITIDAE) (FOSSIL)
- roemeri, Goniatites roemeri G.G. Münster, 1832 † - syn of: Costaclymenia binodosa (G.G. Münster, 1832 †) - (GONIATITIDAE) (FOSSIL)
- roemeri, Goniatites roemeri Holzapfel, 1882 † - syn of: Agoniatites costulatus (d'Archiac & de Verneuil, 1842 †) - (GONIATITIDAE) (FOSSIL)
- roemeri, Texigryphaea roemeri Marcou † - (GRYPHAEIDAE) (FOSSIL)
- roemeri, Argutostrea roemeri (F.A. von Quenstedt, 1843 †) - (GRYPHAEIDAE) (FOSSIL)
- roemeri, Hydrophrea roemeri (A. Andreae, 1902 †) - (HELICODISCIDAE) (FOSSIL)
- roemeri, Myoconcha roemeri Eck, 1872 † - (KALENTERIDAE) (FOSSIL)
- roemeri, Parengonoceras roemeri (Cragin, 1893 †) - (KNEMICERATIDAE) (FOSSIL)
- roemeri, Pseudolimea roemeri (Brauns, 1871 †) - (LIMIDAE) (FOSSIL)
- roemeri, Loxonema roemeri Kayser, 1878 † - syn of: Palaeozygopleura roemeri (Kayser, 1878 †) - (LOXONEMATIDAE) (FOSSIL)
- roemeri, Neophlycticeras roemeri (Lasswitz, 1904 †) - (LYELLICERATIDAE) (FOSSIL)
- roemeri, Nautilus roemeri von Loesch, 1914 † - syn of: Pseudaganides roemeri (von Loesch, 1914 †) - (NAUTILIDAE) (FOSSIL)
- roemeri, Oriostoma roemeri (Lindström, 1884 †) - (ORIOSTOMATIDAE) (FOSSIL)
- roemeri, Ostrea roemeri F.A. von Quenstedt, 1843 † - syn of: Argutostrea roemeri (F.A. von Quenstedt, 1843 †) - (OSTREIDAE) (FOSSIL)
- roemeri, Palaeozygopleura roemeri (Kayser, 1878 †) - (PALAEOZYGOPLEURIDAE) (FOSSIL)
- roemeri, Altudoceras roemeri (C. Gemmellaro, 1887 †) - (PARAGASTRIOCERATIDAE) (FOSSIL)
- roemeri, Neithea roemeri J. Hill, 1889 † - (PECTINIDAE) (FOSSIL)
- roemeri, Pleurotomaria roemeri E.F.R.K. Koken, 1889 † - (PLEUROTOMARIIDAE) (FOSSIL)
- roemeri, Patera roemeri (L. Pfeiffer, 1848) - (POLYGYRIDAE)
- roemeri, Euryptychites roemeri Alsen, 2006 † - (POLYPTYCHITIDAE) (FOSSIL)
- roemeri, Annularisca roemeri C. de la Torre & P. Bartsch, 1941 - syn of: Annularisca romeri (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- roemeri, Pseudaganides roemeri (von Loesch, 1914 †) - (PSEUDONAUTILIDAE) (FOSSIL)
- roemeri, Amblyacrum roemeri (A. von Koenen, 1867 †) - (RAPHITOMIDAE) (FOSSIL)
- roemeri, Rectoclymenia roemeri Wedekind, 1908 † - (RECTOCLYMENIIDAE) (FOSSIL)
- roemeri, Peripleurites roemeri Mojsisovics, 1893 † - (RHABDOCERATIDAE) (FOSSIL)
- roemeri, Rostellaria roemeri J.P. Müller, 1851 † - (ROSTELLARIIDAE) (FOSSIL)
- roemeri, Leporimetis roemeri M. Huber, A. Langleit & K. Kreipl, 2015 - (TELLINIDAE)
- roemeri, Metastoma roemeri (L. Pfeiffer, 1848) - (UROCOPTIDAE)
- roemeri, Protapes roemeri M. Huber, 2010 - (VENERIDAE)
- roemeri, Dosinia roemeri R.W. Dunker, 1863 - syn of: Dosinia cumingii (L.A. Reeve, 1850) - (VENERIDAE)
- roemeri, Venus roemeri R.W. Dunker, 1860 - syn of: Anomalodiscus squamosa (C. Linnaeus, 1758) - (VENERIDAE)
- roemeri, Glyphyalinia roemeri H.A. Pilsbry & J.H. Ferriss, 1906 - (ZONITIDAE)
- roemeri minor, Metastoma roemeri minor T.D.A. Cockerell, 1898 - (UROCOPTIDAE)
- roemeri protracta, Donax roemeri protracta T.A. Conrad, 1849 - (DONACIDAE)
- roemeriana, Timoclea roemeriana (A. Issel, 1869) - (VENERIDAE)
- roemerianus, Hypermastus roemerianus H. Matsuda, D. Uyeno & K. Nagasawa, 2013 - (EULIMIDAE)
- roemericans, Carinaropsis roemericans J. Perner, 1903 † - (PTEROTHECIDAE) (FOSSIL)
- Roemeriella, Genus Roemeriella Blodgett & Frýda, 1999 † (PSEUDOPHORIDAE) (FOSSIL)
- Roemerilla, syn of: Genus Strigilla W.H. Turton, 1822 (TELLINIDAE)
- roepsdorffiana, Acmella roepsdorffiana G. Nevill, 1878 - (ASSIMINEIDAE)
- roepstorffiana, Peasiella roepstorffiana (G. Nevill, 1885) - (LITTORINIDAE)
- roepstorffiana, Bembicium roepstorffiana G. Nevill, 1885 - syn of: Peasiella roepstorffiana (G. Nevill, 1885) - (LITTORINIDAE)
- roepstorffianum, Leptopoma roepstorffianum G. Nevill, 1878 - (CYCLOPHORIDAE)
- roepstorfi, Gerstfeldtiancylus roepstorfi A. Shirokaya, Röpstorf & T.Y. Sitnikova, 2003 - syn of: Pseudancylastrum troschelii (W. Dybowski, 1875) - (ACROLOXIDAE)
- roepstorfi, Prosopeas roepstorfi (O.A.L. Mörch, 1850) - (SUBULINIDAE)
- roesleri, Bythiospeum roesleri (D. Geyer, 1904) - (HYDROBIIDAE)
- roessleri, Loxonema roessleri H.B. Geinitz, 1852 † - syn of: Chemnitzia roessleri (H.B. Geinitz, 1852 †) - (LOXONEMATIDAE) (FOSSIL)
- roessleri, Chemnitzia roessleri (H.B. Geinitz, 1852 †) - (PYRAMIDELLIDAE) (FOSSIL)
- roesti, Creseis roesti Cahuzac & Janssen, 2010 † - (CRESEIDAE) (FOSSIL)
- roetersiana, Meroe roetersiana J.C.H. Crosse, 1874 - syn of: Sunetta donacina (J.F. Gmelin, 1791) - (VENERIDAE)
- roettingensis, Belemnopsis roettingensis Schlegelmilch, 1998 † - syn of: Pachybelemnopsis roettingensis (Schlegelmilch, 1998 †) - (BELEMNOPSEIDAE) (FOSSIL)
- roettingensis, Pachybelemnopsis roettingensis (Schlegelmilch, 1998 †) - (MESOHIBOLITHIDAE) (FOSSIL)
- roetzeli, Emmericia roetzeli M. Harzhauser & al., 2012 † - (AMNICOLIDAE) (FOSSIL)
- roetzeli, Fusinus roetzeli M. Harzhauser, 2014 † - (FASCIOLARIIDAE) (FOSSIL)
- roeveri, Paracrioceras roeveri (A. von Koenen, 1902 †) - (ANCYLOCERATIDAE) (FOSSIL)
- roeveri, Crioceras roeveri A. von Koenen, 1902 † - syn of: Paracrioceras roeveri (A. von Koenen, 1902 †) - (CRIOCERATITIDAE) (FOSSIL)
- rogeri, Cirsotrema rogeri M.E.A. de Boury, 1886 † - (EPITONIIDAE) (FOSSIL)
- rogeri, Deltoidonautilus rogeri Miller, 1951 † - (HERCOGLOSSIDAE) (FOSSIL)
- rogeri, Leptochiton rogeri J.D. Sigwart & B.I. Sirenko, 2015 - (LEPTOCHITONIDAE)
- rogeri, Dentimargo rogeri J. Espinosa & J.A. Ortea, 2014 - (MARGINELLIDAE)
- rogeri, Adiakritobelus rogeri (Delattre, 1952 †) - (MESOHIBOLITHIDAE) (FOSSIL)
- rogeri, Hibolites rogeri Delattre, 1952 † - syn of: Adiakritobelus rogeri (Delattre, 1952 †) - (MESOHIBOLITHIDAE) (FOSSIL)
- rogeri, Nautilus rogeri von Loesch, 1914 † - syn of: Pseudaganides rogeri (von Loesch, 1914 †) - (NAUTILIDAE) (FOSSIL)
- rogeri, Velates rogeri Abbass, 1967 † - (NERITIDAE) (FOSSIL)
- rogeri, Pseudaganides rogeri (von Loesch, 1914 †) - (PSEUDONAUTILIDAE) (FOSSIL)
- rogeri, Rissopsetia rogeri Peñas & Rolán, 2017 - (PYRAMIDELLIDAE)
- rogeri, Parvedentulina rogeri (K.C. Emberton & T.A. Pearce, 1999) - (STREPTAXIDAE)
- rogersensis, Sphenosphaera rogersensis (Foerste, 1914 †) - (BELLEROPHONTIDAE) (FOSSIL)
- rogersensis, Bellerophon rogersensis Foerste, 1914 † - syn of: Sphenosphaera rogersensis (Foerste, 1914 †) - (BELLEROPHONTIDAE) (FOSSIL)
- rogersensis, Gastrocopta rogersensis J.C. Nekola & J. Coles, 2001 - (GASTROCOPTIDAE)
- rogersensis, Isorthoceras rogersensis (Foerste, 1914 †) - (PROTEOCERATIDAE) (FOSSIL)
- rogersi, Puzosigella rogersi (J.W. Hall & Ambrose, 1916 †) - (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- rogersi, Burnupena rogersi B.F. Kensley & Pether, 1986 † - (BUCCINIDAE) (FOSSIL)
- rogersi, Clathurella rogersi J.C. Melvill & R. Standen, 1896 - (CLATHURELLIDAE)
- rogersi, Fusinus rogersi R. Hadorn, 1999 - (FASCIOLARIIDAE)
- rogersi, Pleuropoma rogersi (A.G. Bourne) - (HELICINIDAE)
- rogersi, Timbellus rogersi R. Portell & E.H. Vokes, 1997 † - (MURICIDAE) (FOSSIL)
- rogersi, Bullia rogersi K.R. Smythe & J.E. Chatfield, 1981 - (NASSARIIDAE)
- rogersi, Oxychilus rogersi B.B. Woodward, 1903 - (OXYCHILIDAE)
- rogersi, Tomichia rogersi M. Connolly, 1929 - (POMATIOPSIDAE)
- rogersi, Leptodesma rogersi J.W. Hall, 1883 † - (PTERINEIDAE) (FOSSIL)
- rogersi, Gulella rogersi (J.C. Melvill & J.H. Ponsonby, 1898) - (STREPTAXIDAE)
- rogersi, Petricola rogersi McGavock, 1944 - syn of: Petricolaria pholadiformis (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- rogersii, Doris rogersii W. Stimpson, 1855 - (DORIDIDAE)
- rogersii, Chlamys rogersii T.A. Conrad, 1834 † - (PECTINIDAE) (FOSSIL)
- Rogersites, syn of: Genus Olcostephanus Neumayr , 1875 † (OLCOSTEPHANIDAE) (FOSSIL)
- roginskae, Doridunculus roginskae A.V. Martynov, 1999 - (AKIODORIDIDAE)
- rogmartini, Conus rogmartini A.J. Da Motta, 1982 - syn of: Conasprella otohimeae (J.T. Kuroda & K. Itô, 1961) - (CONIDAE)
- rogovi, Volgacheilus rogovi A.V. Guzhov, 2014 † - (APORRHAIDAE) (FOSSIL)
- rogovi, Mesosaccella rogovi Hryniewicz & al., 2014 † - (NUCULANIDAE) (FOSSIL)
- rogovica, Pentagrammysia rogovica Guskov, 1984 † - (SANGUINOLITIDAE) (FOSSIL)
- rohani, Nodularia rohani J. Germain, 1925 - syn of: Coelatura kunenensis (A. Mousson, 1887) - (UNIONIDAE)
- rohdei, Chloritis rohdei W. Kobelt, 1891 - (CAMAENIDAE)
- rohdei, Iravadia rohdei (R.A.M. Brandt, 1968) - (IRAVADIIDAE)
- rohdei, Fairbankia rohdei (R.A.M. Brandt, 1968) - syn of: Iravadia rohdei (R.A.M. Brandt, 1968) - (IRAVADIIDAE)
- Rohea, Genus Rohea Marwick, 1938 † (VENERIDAE) (FOSSIL)
- Rohillites, Genus Rohillites Waterhouse , 1996 † (FLEMINGITIDAE) (FOSSIL)
- Rohini, Genus Rohini Semper, 1862 (VENERIDAE)
- rohlfsi, Bulinus rohlfsi S. Clessin, 1886 - syn of: Bulinus truncatus rohlfsi (S. Clessin, 1886) - (PLANORBIDAE)
- rohlfsi, Bulinus truncatus rohlfsi (S. Clessin, 1886) - (PLANORBIDAE)
- rohri, Epitonium rohri P.O. Jung, 1969 † - (EPITONIIDAE) (FOSSIL)
- rohri, Orobophana rohri (L. Pfeiffer, 1848) - (HELICINIDAE)
- rohri, Calophos rohri (R.F. Rutsch, 1942 †) - (NASSARIIDAE) (FOSSIL)
- rohri, Cancellator rohri Frýda & Manda, 1997 † - (PLATYCERATIDAE) (FOSSIL)
- rohri, Paraporcellia rohri Blodgett & Johnson, 1992 † - (PORCELLIIDAE) (FOSSIL)
- rohrmanni, Unio rohrmanni W. Kobelt, 1880 - syn of: Unio tumidus A. Retzius, 1788 - (UNIONIDAE)
- roigi, Leptoconus roigi Marks, 1951 † - (CONIDAE) (FOSSIL)
- roigi, Farcimen procer roigi L.O. Alcalde, 1945 - (MEGALOMASTOMIDAE)
- Roimontis, Genus Roimontis G.A. Solem, 1983 (CHAROPIDAE)
- Roinghites, Genus Roinghites Korn, 2002 † (PROLOBITIDAE) (FOSSIL)
- roissyana, Calocochlia roissyana (A.E.J. Férussac, 1821) - (BRADYBAENIDAE)
- roissyana, Paphies roissyana R.P. Lesson, 1838 - syn of: Paphies australis (J.F. Gmelin, 1791) - (MESODESMATIDAE)
- roissyana, Vittina roissyana (C.A. Récluz, 1841) - (NERITIDAE)
- roissyana, Neritina roissyana C.A. Récluz, 1841 - syn of: Vittina roissyana (C.A. Récluz, 1841) - (NERITIDAE)
- roissyana bartschi, Calocochlia roissyana bartschi W.J. Clench & S. Archer, 1932 - (BRADYBAENIDAE)
- roissyana cavitala, Calocochlia roissyana cavitala P. Bartsch, 1932 - (BRADYBAENIDAE)
- roissyana laymansa, Calocochlia roissyana laymansa P. Bartsch - (BRADYBAENIDAE)
- roissyana lutea, Calocochlia roissyana lutea (A.E.J. Férussac, 1821) - (BRADYBAENIDAE)
- roissyana manlaysa, Calocochlia roissyana manlaysa P. Bartsch, 1938 - (BRADYBAENIDAE)
- roissyana subatra, Calocochlia roissyana subatra H.A. Pilsbry, 1892 - (BRADYBAENIDAE)
- roissyanus, Oxytropidoceras roissyanus (A.V.M.D. D'Orbigny, 1841 †) - (BRANCOCERATIDAE) (FOSSIL)
- roissyi, Ampullaria roissyi D'Orbigny, 1838 - syn of: Asolene pulchella (H.E. Anton, 1838) - (AMPULLARIIDAE)
- roissyi, Buccinum roissyi G.P. Deshayes in Belanger, 1832 - syn of: Nassarius roissyi (G.P. Deshayes, 1832) - (BUCCINIDAE)
- roissyi, Margaritifera roissyi A. Michaud, 1831 - syn of: Margaritifera margaritifera (C. Linnaeus, 1758) - (MARGARITIFERIDAE)
- roissyi, Nassarius roissyi (G.P. Deshayes, 1832) - (NASSARIIDAE)
- roissyi, Plicatula roissyi J.L.M. Defrance, 1826 † - (PLICATULIDAE) (FOSSIL)
- roissyi, Gibbula roissyi H.M.D. de Blainville, 1830 - syn of: Gibbula umbilicaris (C. Linnaeus, 1758) - (TROCHIDAE)
- roissyi, Gibbula roissyi B.C.M. Payraudeau, 1826 - syn of: Gibbula varia (C. Linnaeus, 1758) - (TROCHIDAE)
- Rokopella, syn of: Genus Veleropilina Y.I. Starobogatov & L.I. Moskalev, 1987 (NEOPILINIDAE)
- rolandi, Canefriula rolandi T. Iredale, 1941 - (CAMAENIDAE)
- Rolandia, Genus Rolandia A. Pruvot-Fol, 1951 (FACELINIDAE)
- rolandiae, Phyllidia rolandiae A. Pruvot-Fol, 1951 - syn of: Phyllidia flava A. Aradas, 1847 - (PHYLLIDIIDAE)
- rolandiana, Moitessieria rolandiana J.R. Bourguignat, 1863 - (MOITESSIERIIDAE)
- rolandianus, Megalobulimus rolandianus F. Lange de Morretes, 1952 - (MEGALOBULIMIDAE)
- Rolandiella, Genus Rolandiella B.A. Marshall & K.W. Burch, 2000 (MURICIDAE)
- rolandoi, Chondropoma rolandoi C.G. Aguayo, 1943 - (POMATIIDAE)
- Rolandomphalus, Genus Rolandomphalus Bandel, 1993 † (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- rolani, Menkia rolani E. Gittenberger, 1991 - (ACICULIDAE)
- rolani, Anatoma rolani D.L. Geiger & R. Fernández-Garcés, 2010 - (ANATOMIDAE)
- rolani, Assiminea rolani J.J. Van Aartsen, 2008 - (ASSIMINEIDAE)
- rolani, Euthria rolani R. von Cosel, 1982 - (BUCCINIDAE)
- rolani, Antistreptus rolani Z.J.A. De Castellanos, 1986 - (BUCCINIDAE)
- rolani, Caecum rolani M. Pizzini & I. Nofroni, 2001 - (CAECIDAE)
- rolani, Carditamera rolani R. von Cosel, 1995 - syn of: Carditamera contigua (P. Dautzenberg, 1910) - (CARDITIDAE)
- rolani, Joculator rolani A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- rolani, Felimida rolani (J.A. Ortea, 1988) - (CHROMODORIDIDAE)
- rolani, Astyris rolani J. Espinosa, R. Fernández-Garcés & J.A. Ortea, 2004 - (COLUMBELLIDAE)
- rolani, Nassarina rolani J. Pelorce & F. Boyer, 2005 - (COLUMBELLIDAE)
- rolani, Asprella rolani D. Röckel, 1986 - (CONIDAE)
- rolani, Gibberula rolani T. Cossignani & A. Cecalupo, 2005 - (CYSTISCIDAE)
- rolani, Platydoris rolani K.M. Dorgan, Á. Valdés & T.M. Gosliner, 2002 - (DISCODORIDIDAE)
- rolani, Elachisina rolani B.M. Landau & al., 2013 † - (ELACHISINIDAE) (FOSSIL)
- rolani, Fusinus rolani G. Buzzurro & P. Ovalis, 2005 - (FASCIOLARIIDAE)
- rolani, Tarraconia rolani M.A. Ramos, B. Arconada & D. Moreno, 2000 - (HYDROBIIDAE)
- rolani, Belgrandiella rolani (H.D. Boeters, 1986) - (HYDROBIIDAE)
- rolani, Mercuria rolani P. Glöer, H.D. Boeters & Walther, 2015 - (HYDROBIIDAE)
- rolani, Lepidochitona rolani P. Kaas & H.L. Strack, 1986 - (LEPIDOCHITONIDAE)
- rolani, Patelloida rolani J.M.J. Christiaens, 1987 - (LOTTIIDAE)
- rolani, Nucella rolani (C. Bogi & I. Nofroni, 1984) - (MURICIDAE)
- rolani, Laevipilina rolani A. Warén & P. Bouchet, 1990 - (NEOPILINIDAE)
- rolani, Kongsrudia rolani F. Lygre & C.F.C. Schander, 2010 - (PYRAMIDELLIDAE)
- rolani, Dikoleps rolani F. Rubio, L. Dantart & A.A. Luque, 1998 - (SKENEIDAE)
- rolani, Parviturbo rolani W. Engl, 2001 - (SKENEIDAE)
- Rolaniconus, Genus Rolaniconus J.K. Tucker & M.J. Tenorio, 2009 (CONIDAE)
- rolfbrandti, Manningiella rolfbrandti P. Temcharoen, 1971 - (LITHOGLYPHIDAE)
- rolfbrandti, Hubendickia rolfbrandti P. Temcharoen, 1971 - (POMATIOPSIDAE)
- rolfbrandti, Jullienia rolfbrandti P. Temcharoen, 1971 - (POMATIOPSIDAE)
- rolingiana, Turbonilla rolingiana E. Saurin, 1962 - (PYRAMIDELLIDAE)
- rolkei, Praegravesia rolkei Zeiss, 1987 † - (AULACOSTEPHANIDAE) (FOSSIL)
- rollandi, Astarte rollandi A.C. Bernardi, 1859 - syn of: Astarte arctica (J.E. Gray, 1824) - (ASTARTIDAE)
- rollandi, Conus rollandi A.C. Bernardi, 1860 - syn of: Pionoconus magus (C. Linnaeus, 1758) - (CONIDAE)
- rollandi, Heligmus rollandi Douville, 1907 † - (ELIGMIDAE) (FOSSIL)
- rollandi, Peristernia rollandi (A.C. Bernardi & J.C.H. Crosse, 1861) - (FASCIOLARIIDAE)
- rollandi, Plicatella rollandi A.C. Bernardi & J.C.H. Crosse, 1861 - syn of: Peristernia rollandi (A.C. Bernardi & J.C.H. Crosse, 1861) - (FASCIOLARIIDAE)
- rollandi, Emarginula rollandi P. Fischer, 1857 - syn of: Hemimarginula pumila (A. Adams, 1852) - (FISSURELLIDAE)
- rollandi, Eligmus rollandi J.H.F. Douvillé, 1907 † - (MALLEIDAE) (FOSSIL)
- rollandi, Sohlia rollandi A.C. Bernardi, 1853 † - syn of: Sohlia carbonacea (R.B. Hinds, 1844 †) - (MITRIDAE) (FOSSIL)
- rollandi, Thomasites rollandi (F. Péron, 1890 †) - (PSEUDOTISSOTIIDAE) (FOSSIL)
- rollandi, Rectartemon rollandi (A.C. Bernardi, 1857) - (STREPTAXIDAE)
- rollandi, Turbinella rollandi A.C. Bernardi & J.C.H. Crosse, 1861 - syn of: Peristernia rollandi (A.C. Bernardi & J.C.H. Crosse, 1861) - (TURBINELLIDAE)
- rollandi kurilensis, Astarte rollandi kurilensis A. Petrov, 1982 - syn of: Astarte arctica (J.E. Gray, 1824) - (ASTARTIDAE)
- rollandi loxia, Astarte rollandi loxia W.H. Dall, 1903 - syn of: Astarte arctica (J.E. Gray, 1824) - (ASTARTIDAE)
- Rollandiana, Genus Rollandiana Kolesnikov, 1939 † (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- rollandiana, Recluzia rollandiana S.A.A. Petit De La Saussaye, 1853 - (JANTHINIDAE)
- rollandiana, Moitessieria rollandiana J.R. Bourguignat, 1863 - syn of: Moitessieria rolandiana J.R. Bourguignat, 1863 - (MOITESSIERIIDAE)
- rollandii, Astarte rollandii A.C. Bernardi, 1859 - syn of: Astarte arctica (J.E. Gray, 1824) - (ASTARTIDAE)
- rollei, Chrysallis rollei (O.F. von Möllendorff, 1898) - (BRADYBAENIDAE)
- rollei, Amphidromus wetaranus rollei F.F. Laidlaw & G.A. Solem, 1961 - (CAMAENIDAE)
- rollei, Lippistes rollei E.C. Von Martens, 1894 - syn of: Capulus violaceus (G.F. Angas, 1867) - (CAPULIDAE)
- rollei, Albinaria rollei (O. Böttger, 1896) - (CLAUSILIIDAE)
- rollei, Helix rollei H. von Maltzan, 1886 - syn of: Murella muralis insularis (L. Benoit, 1857) - (HELICIDAE)
- rollei, Perna rollei S. Clessin, 1890 - syn of: Isognomon isognomum (C. Linnaeus, 1758) - (MYTILIDAE)
- rollei, Hoernesarca rollei (R. Hoernes, 1870 †) - (NOETIIDAE) (FOSSIL)
- rollei, Noetiella rollei (Hörnes) † - (NOETIIDAE) (FOSSIL)
- rollei, Orthalicus tepicensis rollei (H. Strebel, 1909) - (ORTHALICIDAE)
- rollei, Chlamys rollei F. Stoliczka, 1861 † - (PECTINIDAE) (FOSSIL)
- rollei, Ensis rollei (R. Hoernes, 1859 †) - (PHARIDAE) (FOSSIL)
- rollei, Rhytidopoma rollei (C.D. Weinland) - (POMATIIDAE)
- rollei, Licina rollei H. von Maltzan, 1888 - (POMATIIDAE)
- rollei, Cerithidea rollei W. Kobelt, 1890 - syn of: Cerithidea scalariformis (T. Say, 1825) - (POTAMIDIDAE)
- rollei, Isognomon rollei S. Clessin, 1890 - syn of: Isognomon isognomum (C. Linnaeus, 1758) - (PTERIIDAE)
- rollei blanchardi, Rhytidopoma rollei blanchardi P. Bartsch, 1946 - (POMATIIDAE)
- rollei cayemitense, Rhytidopoma rollei cayemitense P. Bartsch, 1946 - (POMATIIDAE)
- rollei fauxcapense, Rhytidopoma rollei fauxcapense P. Bartsch, 1946 - (POMATIIDAE)
- rollei nigra, Chrysallis rollei nigra (P. Bartsch, 1932) - (BRADYBAENIDAE)
- rollei subsimplex, Amphidromus wetaranus rollei subsimplex F.F. Laidlaw & G.A. Solem, 1961 - (CAMAENIDAE)
- rollei vachecolum, Rhytidopoma rollei vachecolum P. Bartsch, 1946 - (POMATIIDAE)
- rollei vexator, Chrysallis rollei vexator (P. Bartsch, 1932) - (BRADYBAENIDAE)
- rollei viridistriatus, Amphidromus wetaranus rollei viridistriatus F.F. Laidlaw & G.A. Solem, 1961 - (CAMAENIDAE)
- Rolleia, Genus Rolleia J.C.H. Crosse, 1891 (POMATIIDAE)
- rolleri, Cylichnella rolleri (Ev. Marcus, 1977) - (CYLICHNIDAE)
- rolleri, Cuthona rolleri T.M. Gosliner & D.W. Behrens, 1988 - (FIONIDAE)
- Rollerites, syn of: Genus Rollierites Jeannet , 1951 † (PACHYCERATIDAE) (FOSSIL)
- rolli, Sumelia rolli (H. Nordsieck, 1975) - (CLAUSILIIDAE)
- rolli, Albinaria idaea rolli H. Nordsieck, 1977 - (CLAUSILIIDAE)
- rolli, Colubraria rolli M. Parth, 1992 - (COLUBRARIIDAE)
- Rollierella, Genus Rollierella Cossmann, 1924 † (ARCTICIDAE) (FOSSIL)
- rollieri, Pseudopeltoceras rollieri Jeannet, 1951 † - (ASPIDOCERATIDAE) (FOSSIL)
- rollieri, Metapeltoceras rollieri Jeannet, 1951 † - (ASPIDOCERATIDAE) (FOSSIL)
- rollieri, Lissoceras rollieri de Loriol, 1898 † - (HAPLOCERATIDAE) (FOSSIL)
- rollieri, Nautilus rollieri Loesch, 1914 † - syn of: Cenoceras calloviense (Oppel, 1858 †) - (NAUTILIDAE) (FOSSIL)
- rollieri, Rollieria rollieri Jeannet, 1951 † - (OPPELIIDAE) (FOSSIL)
- rollieri, Paracenoceras rollieri (von Loesch, 1914 †) - (PARACENOCERATIDAE) (FOSSIL)
- rollieri, Villania rollieri Lóczy, 1915 † - (PHRICODOCERATIDAE) (FOSSIL)
- rollieri, Anoploceras rollieri (Arthaber, 1896 †) - (TAINOCERATIDAE) (FOSSIL)
- Rollieria, Genus Rollieria Jeannet , 1951 † (OPPELIIDAE) (FOSSIL)
- Rollierites, Genus Rollierites Jeannet , 1951 † (PACHYCERATIDAE) (FOSSIL)
- rollsianus, Rhynchotrochus rollsianus (E.A. Smith, 1887) - (CAMAENIDAE)
- Rollus, syn of: Genus Gastridium Modeer, 1793 (CONIDAE)
- Roloboceras, Genus Roloboceras Casey , 1954 † (DOUVILLEICERATIDAE) (FOSSIL)
- rolphii, Macrogastra rolphii (W. Turton, 1831) - (CLAUSILIIDAE)
- rolphii digonostoma, Macrogastra rolphii digonostoma (J.R. Bourguignat, 1877) - (CLAUSILIIDAE)
- rolphii digostoma, Macrogastra rolphii digostoma (J.R. Bourguignat, 1877) - (CLAUSILIIDAE)
- rolphii portensis, Macrogastra rolphii portensis (Luso da Silva, 1872) - (CLAUSILIIDAE)
- romaensis, Amphidromus laevus romaensis H. Rolle, 1903 - (CAMAENIDAE)
- romagnolii, Tacheocampylaea romagnolii (G. Dutailly, 1867) - (HELICIDAE)
- romagnolii deschampsiana, Tacheocampylaea romagnolii deschampsiana (P. Hagenmüller, 1888) - (HELICIDAE)
- romainensis, Maclurites romainensis Twenhofel, 1938 † - (MACLURITIDAE) (FOSSIL)
- romalea, Dupotetia romalea (J.R. Bourguignat, 1882) - (HELICIDAE)
- romalea, Liotia romalea J.C. Melvill & R. Standen, 1903 - (LIOTIIDAE)
- romaloi, Viviparus romaloi Cobalcescu, 1883 † - (VIVIPARIDAE) (FOSSIL)
- romana, Clavatula romana (J.L.M. Defrance, 1826 †) - (CLAVATULIDAE) (FOSSIL)
- romana, Kossmatella romana Wiedmann, 1962 † - (TETRAGONITIDAE) (FOSSIL)
- romana, Anodonta romana H. Drouët, 1883 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- romanchensis, Poromya romanchensis N.H. Odhner, 1960 - syn of: Cetomya tornata (J.G. Jeffreys, 1876) - (POROMYIDAE)
- Romanella, Genus Romanella Jodot, 1953 † (ANADROMIDAE) (FOSSIL)
- romani, Hydrobia romani Royo Gómez, 1922 † - (HYDROBIIDAE) (FOSSIL)
- romani, Planorbarius romani (P. Jodot, 1958 †) - (PLANORBIDAE) (FOSSIL)
- romani, Matheronia romani Paquier 1897 † - (REQUIENIIDAE) (FOSSIL)
- romani, Dorsetensia romani (Oppel), 1857 † - (SONNINIIDAE) (FOSSIL)
- romani, Strobilops romani W.A. Wenz, 1915 † - (STROBILOPSIDAE) (FOSSIL)
- romani, Coralliophaga romani P. Calcara, 1845 - syn of: Coralliophaga lithophagella (J.B.P.A. Lamarck, 1819) - (TRAPEZIDAE)
- romani, Venerupis romani P. Calcara, 1845 - syn of: Coralliophaga lithophagella (J.B.P.A. Lamarck, 1819) - (VENERIDAE)
- Romania, Genus Romania Cossmann, 1913 † (HYDROBIIDAE) (FOSSIL)
- romaniana, Helix romaniana E. Caziot & C.J. Maury, 1906 - syn of: Cingulifera cingulatum (S.E. Studer, 1820) - (HELICIDAE)
- romanica, Argna bielzi romanica (M. von Kimakowicz, 1890) - (ARGNIDAE)
- Romaniceras, Genus Romaniceras Spath , 1923 † (ACANTHOCERATIDAE) (FOSSIL)
- romanicum, Paltechioceras romanicum (Uhlig, 1900 †) - (ECHIOCERATIDAE) (FOSSIL)
- Romaniella, Genus Romaniella Doguzhaeva, 1971 † (SCENELLIDAE) (FOSSIL)
- Romanites, Genus Romanites Kittl , 1908 † (JOANNITIDAE) (FOSSIL)
- Romaniteuthis, Genus Romaniteuthis Fischer & Riou, 1982 † (TEUTHIDA (UNASSIGNED)) (FOSSIL)
- romanoensis, Cerion romanoensis C.G. Aguayo & M.I. Sánchez Roig, 1953 - (CERIONIDAE)
- romanoensis, Liguus fasciatus romanoensis M.L. Jaume, 1952 - (ORTHALICIDAE)
- romanoi, Koiloceras romanoi Brühwiler & Bucher, 2012 † - (GYRONITIDAE) (FOSSIL)
- romanovskyi, Euphemites romanovskyi Licharev & Netschajev, 1956 † - (EUPHEMITIDAE) (FOSSIL)
- romanum, Asturoceras romanum Riley † - (DIMORPHOCERATIDAE) (FOSSIL)
- romanus, Trachelochetus romanus (J.L.M. Defrance, 1826 †) - (CLAVATULIDAE) (FOSSIL)
- Rombergia, syn of: Genus Strigilla W.H. Turton, 1822 (TELLINIDAE)
- rombergii, Strigilla carnaria rombergii O.A.L. Mörch, 1853 - (TELLINIDAE)
- rombergii, Polystira rombergii O.A.L. Mörch, 1857 - syn of: Polystira picta (L.A. Reeve, 1843) - (TURRIDAE)
- romblonensis, Phengus cincinnus romblonensis (L. Pfeiffer, 1842) - (BRADYBAENIDAE)
- romblonensis, Geophorus romblonensis P. Bartsch, 1918 - syn of: Geophorus agglutinans romblonensis P. Bartsch, 1918 - (HELICINIDAE)
- romblonensis, Geophorus agglutinans romblonensis P. Bartsch, 1918 - (HELICINIDAE)
- romboides, Ennucula romboides (O.A. Scarlato, 1981) - (NUCULIDAE)
- Romboteuthis, Genus Romboteuthis Fischer & Riou, 1982 † (TEUTHIDA (UNASSIGNED)) (FOSSIL)
- romburghi, Odostomia romburghi J.J. Van Aartsen, E. Gittenberger & J. Goud, 1998 - (PYRAMIDELLIDAE)
- romeasaina, Turbonilla romeasaina E. Saurin, 1961 - (PYRAMIDELLIDAE)
- romeasiana, Turbonilla romeasiana E. Saurin, 1962 - (PYRAMIDELLIDAE)
- romejacensis, Melanopsis subulata romejacensis C.F. Fontannes, 1884 † - (MELANOPSIDAE) (FOSSIL)
- romeo, Gourmya romeo J.F. Bayan, 1870 † - syn of: Gourmya delbosi (O.G. Michelotti, 1861 †) - (CERITHIIDAE) (FOSSIL)
- romeri, Boeseites romeri F. Haas, 1942 † - (BRANCOCERATIDAE) (FOSSIL)
- romeri, Noumea romeri J.J. Risbec, 1928 - (CHROMODORIDIDAE)
- romeri, Annularisca romeri (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- romeri, Pitar romeri J.R. le B. Tomlin & L.J. Shackleford, 1913 - syn of: Pitar virgo (J.E. Gray, 1838) - (VENERIDAE)
- romeroi, Dyris romeroi Wesselingh, 2006 † - (COCHLIOPIDAE) (FOSSIL)
- romeroi, Hercoglossa romeroi H.F.A. von Ihering, 1903 † - (HERCOGLOSSIDAE) (FOSSIL)
- romettensis, Cirsonella romettensis (J. Granata Grillo, 1877) - (SKENEIDAE)
- romettensis, Oxystele romettensis J. Granata Grillo, 1877 - syn of: Cirsonella romettensis (J. Granata Grillo, 1877) - (TROCHIDAE)
- romieuxi, Solgerites romieuxi (Pervinquiére, 1907 †) - (COLLIGNONICERATIDAE) (FOSSIL)
- romingeri, Stokesoceras romingeri Foerste, 1924 † - (LOWOCERATIDAE) (FOSSIL)
- romingeri, Striatocycloceras romingeri (Foerste, 1932 †) - (ORTHOCERATIDAE) (FOSSIL)
- romingeri, Irinoceras romingeri (Winchell, 1862 †) - (PRIONOCERATIDAE) (FOSSIL)
- Romingoceras, Genus Romingoceras Foerste, 1932 † (ONCOCERATIDAE) (FOSSIL)
- romiscuum, Cerithium romiscuum T.A. de M. Monterosato in P.M. Pallary, 1910 - syn of: Cerithium vulgatum J.G. Bruguière, 1792 - (CERITHIIDAE)
- romulina, Xeromagna romulina G. Servain, 1880 - syn of: Xerosecta reboudiana (J.R. Bourguignat, 1863) - (HYGROMIIDAE)
- romunderi, Euflemingites romunderi Tozer, 1961 † - (FLEMINGITIDAE) (FOSSIL)
- ronaldi, Tornatellides ronaldi C.M. Cooke & Y. Kondo, 1961 - (ACHATINELLIDAE)
- ronaldi, Fredenia ronaldi Wienrich, 2001 † - (FASCIOLARIIDAE) (FOSSIL)
- ronaldi, Tournouerina ronaldi D. Esu & O. Girotti, 2015 † - (HYDROBIIDAE) (FOSSIL)
- ronaldi, Beddomeia ronaldi W.F. Ponder & K.B. Clark, 1993 - (HYDROBIIDAE)
- ronaldi, Parachiton ronaldi (P. Kaas & R.A. Van Belle, 1985) - (LEPTOCHITONIDAE)
- ronaldi, Megalomphalus ronaldi W. Segers, F. Swinnen & R. De Prins, 2009 - (VANIKORIDAE)
- ronaldshayi, Thisbites ronaldshayi Diener, 1906 † - (THISBITIDAE) (FOSSIL)
- ronaldsmithi, Leptoconus ronaldsmithi E.J. Petuch, 1994 - syn of: Gradiconus largillierti (L.C. Kiener, 1847) - (CONIDAE)
- ronaldsmithi, Pleioptygma ronaldsmithi E.J. Petuch, 1994 † - (PLEIOPTYGMATIDAE) (FOSSIL)
- roncana, Ostrea roncana P. Partsch, 1870 † - (OSTREIDAE) (FOSSIL)
- Roncania, Genus Roncania de Gregorio, 1896 † (LIMIDAE) (FOSSIL)
- roncanus, Editharus roncanus (A. Brongniart, 1823 †) - (BUCCINIDAE) (FOSSIL)
- ronceroi, Gara ronceroi (C.E. Ponte-Lira, 2002) - (CANARIELLIDAE)
- ronchettii, Centrocardita aculeata ronchettii (M. Glibert & van der Poel, 1970 †) - (CARDITIDAE) (FOSSIL)
- ronchinorum, Gibberula ronchinorum L. Bozzetti, 2017 - (CYSTISCIDAE)
- rondeklipensis, Tudora megacheilus rondeklipensis H.B. Baker, 1924 - (POMATIIDAE)
- rondelaudi, Bythinella rondelaudi R. Bernasconi, 2000 - (BYTHINELLIDAE)
- rondeleti, Phalium rondeleti (B. de Basterot, 1825 †) - (CASSIDAE) (FOSSIL)
- Rondeletia, syn of: Genus Rondeletiola A. Naef, 1921 (SEPIOLIDAE)
- rondeletii, Sepiola rondeletii W.E. Leach, 1817 - (SEPIOLIDAE)
- Rondeletiola, Genus Rondeletiola A. Naef, 1921 (SEPIOLIDAE)
- Rondiceras, Subgenus Eboraciceras (Rondiceras) Troitzkaya, 1956 † (CARDIOCERATIDAE) (FOSSIL)
- rondinum, Buccinum rondinum W.H. Dall, 1919 - (BUCCINIDAE)
- rondishiense, Paracrioceras rondishiense Kakabadze, 1981 † - (ANCYLOCERATIDAE) (FOSSIL)
- rondonyi, Megaustenia rondonyi (H. Fischer, 1898) - (ARIOPHANTIDAE)
- ronga, Cuthona ronga Er. Marcus, 1961 - syn of: Diaphoreolis lagunae (C.H. O'Donoghue, 1926) - (FIONIDAE)
- rongelii, Neilo rongelii Anelli & al., 2006 † - (MALLETIIDAE) (FOSSIL)
- Rongjiangoceras, Genus Rongjiangoceras Zhao & al., 1978 † (LIUCHENGOCERATIDAE) (FOSSIL)
- roni, Gabrielona roni R.G. Moolenbeek & H. Dekker, 1993 - (PHASIANELLIDAE)
- ronkershawi, Austropyrgus ronkershawi A. Clark, W.B. Miller & W.F. Ponder, 2003 - (HYDROBIIDAE)
- ronnebyensis, Pupilla ronnebyensis C.A. Westerlund, 1871 - syn of: Isthmia modesta (T. Say, 1824) - (PUPILLIDAE)
- ronnebyensis, Vertigo ronnebyensis C.A. Westerlund, 1871 - (VERTIGINIDAE)
- ronnyi, Vexillum ronnyi G.T. Poppe, S.P. Tagaro & R. Salisbury, 2009 - (COSTELLARIIDAE)
- ronzoni, Bostrichocentrum ronzoni P. Bartsch, 1943 - (UROCOPTIDAE)
- roodensis, Crassatella roodensis L.W. Stephenson, 1923 † - syn of: Crassatella hodgei L.W. Stephenson, 1923 † - (CRASSATELLIDAE) (FOSSIL)
- rookmakeri, Pupinella rookmakeri B. Rensch, 1934 - (PUPINIDAE)
- roonwali, Bankia roonwali Rajagopalaiengar, 1961 - syn of: Bankia rochi C.E. von Moll, 1931 - (TEREDINIDAE)
- roosevelti, Conus roosevelti P. Bartsch & H.A. Rehder, 1939 - syn of: Miliariconus tiaratus (G.B. I Sowerby, 1833) - (CONIDAE)
- roosevelti, Nodilittorina roosevelti P. Bartsch & H.A. Rehder, 1939 - syn of: Echinolittorina porcata (R.A. Philippi, 1846) - (LITTORINIDAE)
- roosevelti, Peasiella roosevelti P. Bartsch & H.A. Rehder, 1939 - syn of: Echinolittorina porcata (R.A. Philippi, 1846) - (LITTORINIDAE)
- roosevelti, Marginella roosevelti P. Bartsch & H.A. Rehder, 1939 - syn of: Prunum amabile J.H. Redfield, 1852 - (MARGINELLIDAE)
- roosevelti, Prunum roosevelti P. Bartsch & H.A. Rehder, 1939 - syn of: Prunum amabile J.H. Redfield, 1852 - (MARGINELLIDAE)
- roosevelti, Octopus roosevelti A. Stuart, 1941 - syn of: Octopus oculifer W.E. Hoyle, 1904 - (OCTOPODIDAE)
- roosevelti, Terebra roosevelti P. Bartsch & H.A. Rehder, 1939 - syn of: Oxymeris maculata (C. Linnaeus, 1758) - (TEREBRIDAE)
- rooseveltiana, Sonorella rooseveltiana S.S. Berry, 1917 - (HELMINTHOGLYPTIDAE)
- rooseveltiana fragilis, Sonorella rooseveltiana fragilis H.A. Pilsbry, 1939 - (HELMINTHOGLYPTIDAE)
- Ropaloceras, Genus Ropaloceras Zhuravleva, 1972 † (DISCOSORIDA (UNASSIGNED)) (FOSSIL)
- ropan, Mytilus ropan G.P. Deshayes, 1836 - syn of: Lithophaga aristata L.W. Dillwyn, 1817 - (MYTILIDAE)
- Ropellaria, syn of: Genus Petricola J.B.P.A. Lamarck, 1801 (VENERIDAE)
- roperi, Doryteuthis roperi (A. Cohen, 1976) - (LOLIGINIDAE)
- roperi, Kurtzia arteaga roperi (W.H. Dall, 1919) - (MANGELIIDAE)
- roperi, Roperia roperi W.H. Dall, 1898 - syn of: Roperia poulsoni (P.P. Carpenter, 1864) - (MURICIDAE)
- roperi, Varicellula tenera roperi H.A. Pilsbry, 1907 - (OLEACINIDAE)
- roperi, Trilobopsis roperi (H.A. Pilsbry, 1889) - (POLYGYRIDAE)
- roperi, Pisidium roperi V. Sterki, 1898 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- roperi, Terebra roperi H.A. Pilsbry & H.N. Lowe, 1932 - (TEREBRIDAE)
- roperi, Neopisthotrigonia roperi (Skwarko, 1963) † - (TRIGONIIDAE) (FOSSIL)
- Roperia, Genus Roperia W.H. Dall, 1848 (MURICIDAE)
- roperiana, Bulla roperiana H.A. Pilsbry, 1895 - syn of: Bulla striata J.G. Bruguière, 1792 - (BULLIDAE)
- Ropoloceras, Genus Ropoloceras Vermeulen & al., 2012 † (CRIOCERATITIDAE) (FOSSIL)
- roquensis, Africonus roquensis T. Cossignani & R. Fiadeiro, 2015 - (CONIDAE)
- roquesana, Melampus roquesana J. Gibson-Smith & W. Gibson-Smith, 1982 - syn of: Melampus bullaoides (G. Montagu, 1808) - (ELLOBIIDAE)
- roquesana, Lucina roquesana J. Gibson-Smith & W. Gibson-Smith, 1982 - (LUCINIDAE)
- roquesi, Maussenetia roquesi Tessier, 1952 † - (APORRHAIDAE) (FOSSIL)
- Roquesia, syn of: Genus Colubraria H.C.F. Schumacher, 1817 (COLUBRARIIDAE)
- roratum, Vexillum roratum A.A. Gould, 1850 - syn of: Vexillum zebuense (L.A. Reeve, 1844) - (COSTELLARIIDAE)
- rorayensis, Ostlingoceras rorayensis M. Collignon, 1964 † - (TURRILITIDAE) (FOSSIL)
- rorida, Mitrella rorida (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- rorida, Columbella rorida L.A. Reeve, 1859 - syn of: Mitrella rorida (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- rorifluum, Ceratostoma rorifluum (A. Adams & L.A. Reeve, 1849) - (MURICIDAE)
- ros, Gibberula ros L.A. Reeve, 1865 - (CYSTISCIDAE)
- ros, Halonympha ros (J.C. Verco, 1908) - (HALONYMPHIDAE)
- rosa, Bursa rosa Perry, 1811 - (BURSIDAE)
- rosa, Collonia rosa H.A. Pilsbry, 1904 - syn of: Bothropoma pilula rosa (H.A. Pilsbry, 1904) - (COLLONIIDAE)
- rosa, Bothropoma pilula rosa (H.A. Pilsbry, 1904) - (COLLONIIDAE)
- rosa, Hypermastus rosa (G. Willett, 1944) - (EULIMIDAE)
- rosa, Volvarina taeniolata rosa (J.S. Schwengel, 1938) - (MARGINELLIDAE)
- rosa, Portlandella rosa (G.D. Hanna, 1927 †) - (NUCULANIDAE) (FOSSIL)
- rosa, Tawera rosa A.W.B. Powell, 1955 - (VENERIDAE)
- rosacea, Acmaea rosacea P.P. Carpenter, 1864 - syn of: Tectura rosacea (P.P. Carpenter, 1864) - (ACMAEIDAE)
- rosacea, Salinator rosacea R.E. Golding, W.F. Ponder & M.M. Byrne, 2007 - (AMPHIBOLIDAE)
- rosacea, Proveniella rosacea Casey † - (ARCTICIDAE) (FOSSIL)
- rosacea, Strophiops rosacea C.J. Maynard & W.F. Clapp, 1921 - (CERIONIDAE)
- rosacea, Astyris rosacea (A.A. Gould, 1840) - (COLUMBELLIDAE)
- rosacea, Doto rosacea K. Baba, 1949 - (DOTIDAE)
- rosacea, Drillia rosacea (L.A. Reeve, 1845) - (DRILLIIDAE)
- rosacea, Okenia rosacea (F.M. MacFarland, 1905) - (GONIODORIDIDAE)
- rosacea, Haliotis tuberculata rosacea L.A. Reeve, 1846 - (HALIOTIDAE)
- rosacea, Helicarion rosacea T. Iredale, 1944 - (HELICARIONIDAE)
- rosacea, Tectura rosacea (P.P. Carpenter, 1864) - (LOTTIIDAE)
- rosacea, Mitra rosacea L.A. Reeve, 1845 - (MITRIDAE)
- rosacea, Coralliophila rosacea E.A. Smith, 1903 - syn of: Mipus rosaceus (E.A. Smith, 1903) - (MURICIDAE)
- rosacea, Nassa rosacea L.A. Reeve, 1854 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- rosacea, Dendostrea rosacea (G.P. Deshayes, 1836) - (OSTREIDAE)
- rosacea, Ostrea rosacea G.P. Deshayes, 1836 - syn of: Dendostrea rosacea (G.P. Deshayes, 1836) - (OSTREIDAE)
- rosacea, Planaxis rosacea A. Risso, 1826 - syn of: Tritia incrassata (H. Strøm, 1768) - (PLANAXIDAE)
- rosacea, Rhytidothyra bilabiata rosacea C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- rosacea, Sanguinolaria rosacea H.C.F. Schumacher, 1817 - syn of: Sanguinolaria sanguinolentus (J.F. Gmelin, 1791) - (PSAMMOBIIDAE)
- rosacea, Odostomia rosacea W.H. Pease, 1867 - (PYRAMIDELLIDAE)
- rosacea, Cyclas rosacea T. Prime, 1852 - syn of: Musculium lacustre (O.F. Müller, 1774) - (SPHAERIIDAE)
- rosacea, Capsa rosacea G.P. Deshayes, 1855 - syn of: Gari elongata (J.B.P.A. Lamarck, 1818) - (TELLINIDAE)
- rosacea, Myurella rosacea (W.H. Pease, 1869) - (TEREBRIDAE)
- rosacea, Stomatella rosacea W.H. Pease, 1867 - (TROCHIDAE)
- rosacea, Diplodonta rosacea K.H.J. Thiele, 1930 - (UNGULINIDAE)
- rosacea incarnata, Mitra rosacea incarnata L.A. Reeve, 1845 - (MITRIDAE)
- rosacea sfasciana, Astyris rosacea sfasciana F. Nordsieck, 1969 - syn of: Astyris rosacea (A.A. Gould, 1840) - (COLUMBELLIDAE)
- rosacea sfaxiana, Astyris rosacea sfaxiana F. Nordsieck, 1969 - syn of: Astyris rosacea (A.A. Gould, 1840) - (COLUMBELLIDAE)
- rosaceum, Buccinum rosaceum A.A. Gould, 1840 - syn of: Astyris rosacea (A.A. Gould, 1840) - (BUCCINIDAE)
- rosaceum fuliginosum, Musculium rosaceum fuliginosum V. Sterki, 1916 - syn of: Musculium lacustre (O.F. Müller, 1774) - (SPHAERIIDAE)
- rosaceus, Bulimus rosaceus P.M.A. Morelet, 1863 - syn of: Megalobulimus capillaceus (L. Pfeiffer, 1855) - (BULIMULIDAE)
- rosaceus, Conus rosaceus G.B. I Sowerby, 1834 - syn of: Conasprella mindana (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- rosaceus, Conus rosaceus L.C. Kiener, 1849 - syn of: Graphiconus iodostoma (L.A. Reeve, 1843) - (CONIDAE)
- rosaceus, Conus rosaceus L.W. Dillwyn, 1817 - syn of: Ketyconus tinianus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- rosaceus, Trigonephrus rosaceus (H.P.C. Møller) - (DORCASIIDAE)
- rosaceus, Loripes rosaceus E.A. Smith, 1899 - (LUCINIDAE)
- rosaceus, Megalobulimus rosaceus P.P. King & W.J. Broderip, 1831 - syn of: Chiliborus rosaceus (P.P. King & W.J. Broderip, 1831) - (MEGALOBULIMIDAE)
- rosaceus, Mipus rosaceus (E.A. Smith, 1903) - (MURICIDAE)
- rosaceus, Latiaxis rosaceus E.A. Smith, 1903 - syn of: Mipus rosaceus (E.A. Smith, 1903) - (MURICIDAE)
- rosaceus, Solen rosaceus P.P. Carpenter, 1864 - (SOLENIDAE)
- rosaceus, Chiliborus rosaceus (P.P. King & W.J. Broderip, 1831) - (STROPHOCHEILIDAE)
- rosaceus seneri, Megalobulimus rosaceus seneri F.P. Jousseaume, 1884 - syn of: Chiliborus rosaceus seneri (F.P. Jousseaume, 1884) - (MEGALOBULIMIDAE)
- rosaceus seneri, Chiliborus rosaceus seneri (F.P. Jousseaume, 1884) - (STROPHOCHEILIDAE)
- rosadialeukos, Marginella rosadialeukos A. Aiken, 2014 - (MARGINELLIDAE)
- rosadoi, Ancillista rosadoi L. Bozzetti & G.L. Terzer, 2004 - (ANCILLARIIDAE)
- rosadoi, Zemiropsis rosadoi (L. Bozzetti, 1998) - (BABYLONIIDAE)
- rosadoi, Pisania rosadoi L. Bozzetti & M. Ferrario, 2005 - (BUCCINIDAE)
- rosadoi, Loxotaphrus rosadoi A.G. Beu & A. Verhecken, 2000 - (CANCELLARIIDAE)
- rosadoi, Mitrella rosadoi L. Bozzetti, 1998 - (COLUMBELLIDAE)
- rosadoi, Benimakia rosadoi (L. Bozzetti, 2002) - (FASCIOLARIIDAE)
- rosadoi, Dentarene rosadoi L. Bozzetti & M. Ferrario, 2005 - (LIOTIIDAE)
- rosadoi, Glabella rosadoi R.N. Kilburn, 1994 - (MARGINELLIDAE)
- rosadoi, Charitodoron rosadoi R.N. Kilburn, 1995 - (MITRIDAE)
- rosadoi, Orania rosadoi R. Houart, 1998 - (MURICIDAE)
- rosadoi, Siphonochelus rosadoi R. Houart, 1999 - (MURICIDAE)
- rosadoi, Chicomurex rosadoi R. Houart, 1999 - (MURICIDAE)
- rosadoi, Diminovula rosadoi F.Jr. Lorenz & D. Fehse, 2009 - (OVULIDAE)
- rosadoi, Propeamussium rosadoi H.H. Dijkstra & P. Maestrati, 2015 - (PROPEAMUSSIIDAE)
- rosadoi, Eratoena rosadoi D. Fehse, 2013 - (TRIVIIDAE)
- rosadoi, Coluzea rosadoi L. Bozzetti, 2006 - (TURBINELLIDAE)
- rosae, Torinia rosae R. Selli, 1973 - syn of: Heliacus variegatus (J.F. Gmelin, 1791) - (ARCHITECTONICIDAE)
- rosae, Peltodoris rosae Á. Valdés & H.W. Bertsch, 2010 - (DISCODORIDIDAE)
- rosae, Charilda rosae (C. Hedley, 1901) - (PYRAMIDELLIDAE)
- rosae, Terebra rosae U. Aubry, 2015 - (TEREBRIDAE)
- rosae, Leiophyllites rosae Renz & Renz, 1948 † - syn of: Eophyllites dieneri (Arthaber, 1908 †) - (USSURITIDAE) (FOSSIL)
- rosai, Ponentina rosai J. Da Silva e Castro, 1887 - syn of: Ponentina subvirescens (J.C. Bellamy, 1839) - (HYGROMIIDAE)
- rosai, Anodonta rosai J. Da Silva e Castro, 1883 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- rosalba, Theba rosalba T.A. de M. Monterosato, 1892 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- rosalbus, Drymaeus rosalbus H.A. Pilsbry, 1932 - (BULIMULIDAE)
- rosalia, Vallonia rosalia A. Risso, 1826 - syn of: Vallonia costata (O.F. Müller, 1774) - (VALLONIIDAE)
- rosaliae, Murella platychela rosaliae (L. Benoit, 1857) - (HELICIDAE)
- rosaliae, Abbottella rosaliae (L. Pfeiffer, 1858) - (POMATIIDAE)
- rosalimae, Lindapterys rosalimae J.C.N. Barros, 1990 - syn of: Lindapterys sanderi E.J. Petuch, 1987 - (MURICIDAE)
- rosalina, Venus rosalina P.C.A.S.L. Rang, 1835 - syn of: Venus crebrisulca J.B.P.A. Lamarck, 1818 - (VENERIDAE)
- rosalina, Venus rosalina R.A. Philippi, 1849 - syn of: Venus subrosalina J.R. le B. Tomlin, 1923 - (VENERIDAE)
- rosalindensis, Purpuriconus rosalindensis E.J. Petuch, 1998 - (CONIDAE)
- rosalinus, Clavus rosalinus F.P. Marrat, 1877 - (DRILLIIDAE)
- rosamiae, Favartia rosamiae (D'Attilio & B.W. Myers, 1985) - (MURICIDAE)
- rosamiae, Murexiella rosamiae D'Attilio & B.W. Myers, 1985 - syn of: Favartia rosamiae (D'Attilio & B.W. Myers, 1985) - (MURICIDAE)
- rosamonda, Euplecta rosamonda (W.H. Benson, 1860) - (ARIOPHANTIDAE)
- rosamunda, Tellina rosamunda J.C. Melvill & R. Standen, 1907 - (TELLINIDAE)
- rosana, Alvania rosana P. Bartsch, 1911 - (RISSOIDAE)
- rosanae, Limenandra rosanae L. Carmona, M. Pola, T.M. Gosliner & J.L. Cervera, 2014 - (AEOLIDIIDAE)
- rosanae, Sineancylus rosanae (D.E. Gutiérrez Gregoric, 2012) - (PLANORBIDAE)
- rosaneae, Vaginulus rosaneae J.W. Thomé & R. dos Santos Gomes, 1999 - (VERONICELLIDAE)
- rosannulata, Nembrotha rosannulata M. Pola, J.L. Cervera & T.M. Gosliner, 2008 - (POLYCERIDAE)
- rosans, Hypselodoris rosans (L.S.R. Bergh, 1889) - (CHROMODORIDIDAE)
- rosans, Phyllidiella rosans (L.S.R. Bergh, 1873) - (PHYLLIDIIDAE)
- rosans, Phyllidia rosans L.S.R. Bergh, 1873 - syn of: Phyllidiella rosans (L.S.R. Bergh, 1873) - (PHYLLIDIIDAE)
- rosanum, Caecum rosanum P. Bartsch, 1920 - (CAECIDAE)
- rosaperdita, Acrocoptis rosaperdita C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- rosapereirae, Turbonilla rosapereirae A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- rosaponti, Latirus rosaponti (R.P. Lesson, 1842) - (FASCIOLARIIDAE)
- rosari, Anodonta rosari É.A.A. Locard, 1890 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- rosaria, Clionella rosaria (L.A. Reeve, 1846) - (CLAVATULIDAE)
- rosaria, Triplex rosaria G. Perry, 1810 - (MURICIDAE)
- rosaria, Truncacila rosaria R.L. Squires & Saul, 2006 † - (NUCULIDAE) (FOSSIL)
- rosaria, Psadara rosaria (L. Pfeiffer, 1849) - (PLEURODONTIDAE)
- rosaria, Pleurotoma rosaria L.A. Reeve, 1846 - syn of: Clionella rosaria (L.A. Reeve, 1846) - (TURRIDAE)
- rosaria kowiensis, Clionella rosaria kowiensis (W.H. Turton, 1932) - (CLAVATULIDAE)
- rosariae, Alvania rosariae Garilli, 2008 † - (RISSOIDAE) (FOSSIL)
- rosarica, Puzosia rosarica C.J. Maury, 1936 † - (DESMOCERATIDAE) (FOSSIL)
- rosariense, Paraspinoceras rosariense Myczynski, 1977 † - (ANCYLOCERATIDAE) (FOSSIL)
- rosariense, Chondropoma carenasense rosariense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- rosariensis, Chondrothyretes impressa rosariensis (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- rosariensis, Vinalesites rosariensis (Imlay, 1942 †) - (PROTANCYLOCERATIDAE) (FOSSIL)
- rosariensis, Cochlodinella variegata rosariensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- rosario, Gemmula rosario T. Shikama, 1977 - (TURRIDAE)
- rosarioense, Rhytidopoma pinense rosarioense C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- rosarioensis, Opis rosarioensis F.M. Anderson & G.D. Hanna, 1935 † - (ASTARTIDAE) (FOSSIL)
- rosarioensis, Eratoidea rosarioensis T. McCleery, 2011 - (MARGINELLIDAE)
- rosarium, Helix rosarium L. Pfeiffer, 1849 - syn of: Psadara rosaria (L. Pfeiffer, 1849) - (HELICIDAE)
- rosarium, Takia rosarium (P.F. Röding, 1798) - (MURICIDAE)
- rosarium, Solaropsis rosarium L. Pfeiffer, 1849 - syn of: Psadara rosaria (L. Pfeiffer, 1849) - (PLEURODONTIDAE)
- rosarium beckii, Takia rosarium beckii (R.A. Philippi, 1847) - (MURICIDAE)
- rosavittoriae, Athleta rosavittoriae (H.A. Rehder, 1981) - (VOLUTIDAE)
- Roscellaria, syn of: Genus Rocellaria H.M.D. De Blainville, 1828 (GASTROCHAENIDAE)
- roschitzi, Vestiella roschitzi (K. Brancsik, 1890) - (CLAUSILIIDAE)
- roschitzi, Helix roschitzi C.A. Westerlund, 1886 - syn of: Helix pomatia C. Linnaeus, 1758 - (HELICIDAE)
- roschitzi apragmosyne, Vestiella roschitzi apragmosyne (A.J. Wagner, 1919) - (CLAUSILIIDAE)
- roschitzi minima, Vestiella roschitzi minima (P.S. Pavlovic, 1912) - (CLAUSILIIDAE)
- roschitzi neubertiana, Vestiella roschitzi neubertiana I. Dedov, 2010 - (CLAUSILIIDAE)
- roschitzi nordsieckiana, Vestiella roschitzi nordsieckiana (J. Urbanski, 1979) - (CLAUSILIIDAE)
- roschitzi pygmaea, Vestiella roschitzi pygmaea (S.G.A. Jaeckel, 1954) - (CLAUSILIIDAE)
- roschitzi trigonostoma, Vestiella roschitzi trigonostoma (P.S. Pavlovic, 1912) - (CLAUSILIIDAE)
- roscida, Andraea roscida S.E. Studer, 1820 - syn of: Andraea dubia J.P.R. Draparnaud, 1805 - (CLAUSILIIDAE)
- roscida, Callista roscida A.A. Gould, 1861 - syn of: Callista chinensis (H.S. Holten, 1802) - (VENERIDAE)
- roscidum, Prunum roscidum J.H. Redfield, 1860 - (MARGINELLIDAE)
- roscidum spilota, Prunum roscidum spilota W.G. Mazÿck, 1911 - syn of: Persicula persicula (C. Linnaeus, 1758) - (MARGINELLIDAE)
- roscoae, Amalda roscoae R.N. Kilburn, 1975 - (ANCILLARIIDAE)
- roscobiensis, Neilsonia roscobiensis A. Thomas, 1940 † - (GOSSELETINIDAE) (FOSSIL)
- roscobiensis, Palaeozygopleura roscobiensis (Longstaff, 1933 †) - (PALAEOZYGOPLEURIDAE) (FOSSIL)
- roscobiensis, Zygopleura roscobiensis Longstaff, 1933 † - syn of: Palaeozygopleura roscobiensis (Longstaff, 1933 †) - (ZYGOPLEURIDAE) (FOSSIL)
- roscoei, Amalda roscoei R.N. Kilburn, 1975 - syn of: Amalda roscoae R.N. Kilburn, 1975 - (ANCILLARIIDAE)
- roscoei, Otoconcha roscoei F.M. Climo, 1971 - (CHAROPIDAE)
- roscoei, Ptychodon roscoei F.M. Climo, 1978 - (CHAROPIDAE)
- roscoei, Chaureopa roscoei F.M. Climo, 1985 - (CHAROPIDAE)
- roscoei, Natica roscoei R.N. Kilburn, 1976 - syn of: Natica pseustes Watson, 1887 - (NATICIDAE)
- roscoei, Opacuincola roscoei M. Haase, 2008 - (TATEIDAE)
- roscoeorum, Lucina roscoeorum (R.N. Kilburn, 1974) - (LUCINIDAE)
- roscoeorum, Linga roscoeorum R.N. Kilburn, 1974 - syn of: Lucina roscoeorum (R.N. Kilburn, 1974) - (LUCINIDAE)
- rosea, Notoplax rosea (E.H.J. Leloup, 1940) - (ACANTHOCHITONIDAE)
- rosea, Achatinella bulimoides rosea W.J. Swainson, 1828 - (ACHATINELLIDAE)
- rosea, Rhodopetala rosea (W.H. Dall, 1872) - (ACMAEIDAE)
- rosea, Acmaea rosea W.H. Dall, 1872 - syn of: Rhodopetala rosea (W.H. Dall, 1872) - (ACMAEIDAE)
- rosea, Pupa rosea C.B. Adams, 1846 - syn of: Urocoptis sanguinea L. Pfeiffer, 1845 - (ACTEONIDAE)
- rosea, Aeolidia rosea J. Alder & A. Hancock, 1842 - syn of: Aeolidia papillosa (C. Linnaeus, 1761) - (AEOLIDIIDAE)
- rosea, Alocospira rosea J.H. Macpherson, 1959 - (ANCILLARIIDAE)
- rosea, Anomia rosea J.E. Gray, 1825 - syn of: Enigmonia aenigmatica (H.S. Holten, 1802) - (ANOMIIDAE)
- rosea, Enigmonia rosea J.E. Gray, 1825 - syn of: Enigmonia aenigmatica (H.S. Holten, 1802) - (ANOMIIDAE)
- rosea, Aplysia rosea J. Rathke, 1799 - syn of: Aplysia punctata (G.L.C.F.D. Cuvier, 1803) - (APLYSIIDAE)
- rosea, Arca rosea G.D. Nardo, 1847 - syn of: Striarca lactea (C. Linnaeus, 1758) - (ARCIDAE)
- rosea, Xesta rosea J. Abbas & P. Krull, 2006 - (ARIOPHANTIDAE)
- rosea, Armina rosea L.S.R. Bergh, 1905 - (ARMINIDAE)
- rosea, Omphalotropis rosea (A.A. Gould, 1852) - (ASSIMINEIDAE)
- rosea, Atlanta rosea J.E. Gray, 1850 - (ATLANTIDAE)
- rosea, Atlanta rosea L.F.A. Souleyet, 1852 - syn of: Atlanta peronii C.A. Lesueur, 1817 - (ATLANTIDAE)
- rosea, Gabbiella rosea G. Mandahl-Barth, 1968 - (BITHYNIIDAE)
- rosea, Phenatoma rosea (J.R.C. Quoy & J.P. Gaimard, 1833) - (BORSONIIDAE)
- rosea, Euthria rosea H. Strebel, 1905 - syn of: Pareuthria powelli W.O. Cernohorsky, 1977 - (BUCCINIDAE)
- rosea, Cancellaria rosea G.B. II Sowerby, 1849 - (CANCELLARIIDAE)
- rosea, Strophiops rosea C.J. Maynard & W.F. Clapp, 1921 - syn of: Cerion agassizii W.H. Dall, 1894 - (CERIONIDAE)
- rosea, Cerithiopsis rosea A. Adams, 1860 - (CERITHIOPSIDAE)
- rosea, Argalista rosea (J.E. Tenison-Woods, 1876) - (COLLONIIDAE)
- rosea, Zemitrella rosea (F.W. Hutton, 1873) - (COLUMBELLIDAE)
- rosea, Conus rosea G.B. I Sowerby, 1833 - syn of: Gastridium eldredi (J.P.E. Morrison, 1955) - (CONIDAE)
- rosea, Corbula rosea T. Brown, 1844 - syn of: Corbula gibba (A.G. Olivi, 1792) - (CORBULIDAE)
- rosea, Costellaria rosea P. Dautzenberg & J.L. Bouge, 1923 - syn of: Vexillum cadaverosum (L.A. Reeve, 1844) - (COSTELLARIIDAE)
- rosea, Costellaria rosea L.C. Kiener, 1838 - syn of: Vexillum acuminatum (J.F. Gmelin, 1791) - (COSTELLARIIDAE)
- rosea, Costellaria rosea L.A. Reeve, 1845 - syn of: Vexillum costatum (J.F. Gmelin, 1791) - (COSTELLARIIDAE)
- rosea, Cuspidaria rosea (R.B. Hinds, 1843) - (CUSPIDARIIDAE)
- rosea, Leporicypraea rosea (J.E. Gray, 1824) - (CYPRAEIDAE)
- rosea, Cypraea rosea W. Wood, 1828 - syn of: Triviella aperta (W.J. Swainson, 1822) - (CYPRAEIDAE)
- rosea, Cypraea rosea H.M.D. de Blainville, 1826 - syn of: Niveria quadripunctata (J.E. Gray, 1827) - (CYPRAEIDAE)
- rosea, Erronea rosea J.W. Taylor, 1913 - syn of: Erronea caurica (C. Linnaeus, 1758) - (CYPRAEIDAE)
- rosea, Cyrenoida rosea (A. d'Ailly, 1896) - (CYRENOIDIDAE)
- rosea, Doriopsis rosea A.J.B.M. Vayssière, 1912 - syn of: Dendrodoris fumata (W.P.E.S. Rüppell & F.S. Leuckart, 1830) - (DENDRODORIDIDAE)
- rosea, Doto rosea S. Trinchese, 1881 - (DOTIDAE)
- rosea, Bellaspira rosea P.J. Fallon, 2016 - (DRILLIIDAE)
- rosea, Peasistilifer rosea W.H. Pease, 1860 - syn of: Peasistilifer nitidula (W.H. Pease, 1860) - (EULIMIDAE)
- rosea, Caloria rosea (L.S.R. Bergh, 1888) - (FACELINIDAE)
- rosea, Peristernia rosea (L.A. Reeve, 1846) - (FASCIOLARIIDAE)
- rosea, Cuthona rosea F.M. MacFarland, 1966 - syn of: Cuthona divae (Er. Marcus, 1961) - (FIONIDAE)
- rosea, Emarginula rosea Bell, 1824 - (FISSURELLIDAE)
- rosea, Fissurella rosea (J.F. Gmelin, 1791) - (FISSURELLIDAE)
- rosea, Cremides rosea Adams & Adams, 1854 - syn of: Emarginula adamsiana G.B. II Sowerby, 1863 - (FISSURELLIDAE)
- rosea, Scintilla rosea G.P. Deshayes, 1856 - (GALEOMMATIDAE)
- rosea, Parahyotissa rosea J.F. Gmelin, 1791 - syn of: Hyotissa mcgintyi (H.W. Harry, 1985) - (GRYPHAEIDAE)
- rosea, Genitoconia rosea L. Salvini-Plawén, 1967 - (GYMNOMENIIDAE)
- rosea, Haliotis rosea C.R. Orcutt, 1900 - syn of: Haliotis cracherodi rosea C.R. Orcutt, 1900 - (HALIOTIDAE)
- rosea, Haliotis cracherodi rosea C.R. Orcutt, 1900 - (HALIOTIDAE)
- rosea, Harpa rosea J.B.P.A. Lamarck, 1816 - syn of: Harpa doris P.F. Röding, 1798 - (HARPIDAE)
- rosea, Cepaea nemoralis rosea A.A. Baudon - (HELICIDAE)
- rosea, Theba dehnei rosea P.M. Pallary, 1921 - (HELICIDAE)
- rosea, Helicina variabilis rosea J.K. Megerle Von Mühlfeld, 1839 - (HELICINIDAE)
- rosea, Discula rosea R.T. Lowe, 1855 - syn of: Discula polymorpha depressiuscula R.T. Lowe, 1852 - (HYGROMIIDAE)
- rosea, Janthina rosea H.E. Anton, 1839 - syn of: Janthina pallida W. Thompson, 1840 - (JANTHINIDAE)
- rosea, Kellia rosea (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (KELLIIDAE)
- rosea, Lepidochitona rosea P. Kaas, 1972 - (LEPIDOCHITONIDAE)
- rosea, Lucina rosea G.F. Angas, 1878 - syn of: Lucina carnosa (R.W. Dunker, 1858) - (LUCINIDAE)
- rosea, Oenopota rosea S.L. Lovén, 1846 - syn of: Propebela harpularia rosea (G.O. Sars, 1868) - (MANGELIIDAE)
- rosea, Propebela harpularia rosea (G.O. Sars, 1868) - (MANGELIIDAE)
- rosea, Marginella rosea J.B.P.A. Lamarck, 1822 - (MARGINELLIDAE)
- rosea, Amicula vestita rosea A.M. Jakovleva, 1952 - (MOPALIIDAE)
- rosea, Favartia rosea T. Habe, 1961 - (MURICIDAE)
- rosea, Muricopsis rosea (L.A. Reeve, 1856) - (MURICIDAE)
- rosea, Orania rosea R. Houart, 1996 - (MURICIDAE)
- rosea, Risomurex rosea L.A. Reeve, 1846 - syn of: Muricopsis rosea (L.A. Reeve, 1856) - (MURICIDAE)
- rosea, Ocenebra rosea L.A. Reeve, 1846 - syn of: Muricopsis rosea (L.A. Reeve, 1856) - (MURICIDAE)
- rosea, Drupa rosea L.A. Reeve, 1846 - syn of: Muricopsis rosea (L.A. Reeve, 1856) - (MURICIDAE)
- rosea, Nacella rosea W.H. Dall, 1872 - syn of: Rhodopetala rosea (W.H. Dall, 1872) - (NACELLIDAE)
- rosea, Nassaria rosea J.B. Hombron & C.H. Jacquinot, 1854 - syn of: Pareuthria powelli W.O. Cernohorsky, 1977 - (NASSARIIDAE)
- rosea, Striarca rosea G.D. Nardo, 1847 - syn of: Striarca lactea (C. Linnaeus, 1758) - (NOETIIDAE)
- rosea, Phenacovolva rosea (A. Adams, 1854) - (OVULIDAE)
- rosea, Ovula rosea R.C. Rossiter, 1883 - syn of: Aclyvolva lanceolata (G.B. II Sowerby, 1848) - (OVULIDAE)
- rosea, Ovula rosea E. Réquien, 1848 - syn of: Pseudosimnia carnea (J.L.M. Poiret, 1789) - (OVULIDAE)
- rosea, Volva rosea A. Adams, 1854 - syn of: Phenacovolva rosea (A. Adams, 1854) - (OVULIDAE)
- rosea, Partula rosea W.J. Broderip, 1832 - (PARTULIDAE)
- rosea, Patella rosea P.F. Röding, 1798 - syn of: Cymbula miniata (I. von Born, 1778) - (PATELLIDAE)
- rosea, Tricolia rosea (G.F. Angas, 1867) - (PHASIANELLIDAE)
- rosea, Martesia rosea C.B. Adams, 1850 - syn of: Martesia striata (C. Linnaeus, 1758) - (PHOLADIDAE)
- rosea, Rhytidothyra bilabiata rosea C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- rosea, Hiatula rosea (J.F. Gmelin, 1791) - (PSAMMOBIIDAE)
- rosea, Sanguinolaria rosea J.B.P.A. Lamarck, 1801 - syn of: Sanguinolaria sanguinolentus (J.F. Gmelin, 1791) - (PSAMMOBIIDAE)
- rosea, Sanguinolaria rosea H.C.F. Schumacher, 1817 - syn of: Sanguinolaria sanguinolentus (J.F. Gmelin, 1791) - (PSAMMOBIIDAE)
- rosea, Heterodonax rosea D'Orbigny in R. de la Sagra, 1853 - syn of: Heterodonax bimaculatus (C. Linnaeus, 1758) - (PSAMMOBIIDAE)
- rosea, Asaphis rosea P.F. Röding, 1798 - syn of: Asaphis deflorata (C. Linnaeus, 1758) - (PSAMMOBIIDAE)
- rosea, Pseudococculina rosea T. Habe, 1952 - (PSEUDOCOCCULINIDAE)
- rosea, Odostomia rosea T.A. de M. Monterosato, 1877 - syn of: Pyrgolidium internodula (Wood, 1847) - (PYRAMIDELLIDAE)
- rosea, Raphitoma rosea Š. Brusina, 1866 - syn of: Raphitoma linearis (G. Montagu, 1803) - (RAPHITOMIDAE)
- rosea, Rissoa rosea F.W. Hutton, 1873 - syn of: Eatoniella roseola (T. Iredale, 1915) - (RISSOIDAE)
- rosea, Rissoina rosea (G.P. Deshayes, 1862) - (RISSOINIDAE)
- rosea, Incisura rosea (C. Hedley, 1904) - (SCISSURELLIDAE)
- rosea, Semele rosea (G.B. I Sowerby, 1833) - (SEMELIDAE)
- rosea, Siphonaria rosea B. Hubendick, 1943 - (SIPHONARIIDAE)
- rosea, Euglandina rosea (A.E.J. Férussac, 1821) - (SPIRAXIDAE)
- rosea, Tellina rosea L. Spengler, 1798 - syn of: Pallidea palliderosea (H.E. Anton, 1838) - (TELLINIDAE)
- rosea, Melibe rosea P.C.A.S.L. Rang, 1829 - (TETHYDIDAE)
- rosea, Coralliophaga rosea A.A. Gould, 1850 - syn of: Coralliophaga coralliophaga (J.F. Gmelin, 1791) - (TRAPEZIDAE)
- rosea, Mastonia rosea (R.B. Hinds, 1843) - (TRIPHORIDAE)
- rosea, Marianina rosea (A. Pruvot-Fol, 1930) - (TRITONIIDAE)
- rosea, Gibbula rosea (J.F. Gmelin, 1791) - (TROCHIDAE)
- rosea, Broderipia rosea (W.J. Broderip, 1834) - (TROCHIDAE)
- rosea, Pleurotoma rosea J.R.C. Quoy & J.P. Gaimard, 1833 - syn of: Phenatoma rosea (J.R.C. Quoy & J.P. Gaimard, 1833) - (TURRIDAE)
- rosea, Anodonta rosea P.M. Heude, 1881 - syn of: Sinanodonta woodiana (I. Lea, 1834) - (UNIONIDAE)
- rosea, Bactrocoptis rosea (L. Pfeiffer, 1844) - (UROCOPTIDAE)
- rosea, Vanikoro rosea C.A. Récluz, 1844 - syn of: Nilsia cuvieriana (H.H. Suter, 1908) - (VANIKORIDAE)
- rosea, Hysteroconcha rosea (W.J. Broderip & Sowerby, 1851) - (VENERIDAE)
- rosea, Periglypta rosea W.J. Broderip & G.B. I Sowerby, 1829 - syn of: Hysteroconcha rosea (W.J. Broderip & Sowerby, 1851) - (VENERIDAE)
- rosea, Voluta rosea P.F. Röding, 1798 - syn of: Voluta musica C. Linnaeus, 1758 - (VOLUTIDAE)
- rosea, Fulgoraria concinna rosea (W.J. Broderip, 1836) - (VOLUTIDAE)
- rosea aliwalensis, Leporicypraea rosea aliwalensis F.Jr. Lorenz, 2002 - (CYPRAEIDAE)
- rosea bicolorata, Partula rosea bicolorata H.A. Pilsbry, 1910 - (PARTULIDAE)
- rosea brevidentata, Cyrenoida rosea brevidentata H.A. Pilsbry & J.C. Bequaert, 1927 - syn of: Cyrenoida rosea (A. d'Ailly, 1896) - (CYRENOIDIDAE)
- rosea estalliana, Partula rosea estalliana A. Garrett, 1882 - (PARTULIDAE)
- rosea fortis, Cylindrella rosea fortis C.B. Adams, 1851 - syn of: Urocoptis ambigua (C.B. Adams, 1849) - (UROCOPTIDAE)
- rosea junonia, Semele rosea junonia A.E. Verrill, 1870 - (SEMELIDAE)
- rosea magna, Cylindrella rosea magna C.B. Adams, 1849 - syn of: Urocoptis ambigua (C.B. Adams, 1849) - (UROCOPTIDAE)
- rosea major, Cylindrella rosea major C.B. Adams, 1849 - syn of: Urocoptis ambigua (C.B. Adams, 1849) - (UROCOPTIDAE)
- rosea montoucheti, Lepidochitona rosea montoucheti (G. Righi, 1973) - (LEPIDOCHITONIDAE)
- rosea nectarea, Phenacovolva rosea nectarea T. Iredale, 1930 - syn of: Phenacovolva nectarea T. Iredale, 1930 - (OVULIDAE)
- rosea remota, Scissurona rosea remota T. Iredale, 1924 - syn of: Incisura remota (T. Iredale, 1924) - (SCISSURELLIDAE)
- rosea schmidi, Phenacovolva rosea schmidi D. Fehse & V. Wiese, 1993 - syn of: Phenacovolva schmidi D. Fehse & V. Wiese, 1993 - (OVULIDAE)
- rosea singularis, Leporicypraea rosea singularis F.Jr. Lorenz, 2016 - (CYPRAEIDAE)
- rosea straminea, Partula rosea straminea H.A. Pilsbry, 1910 - (PARTULIDAE)
- rosea ultraviola, Leporicypraea rosea ultraviola F.Jr. Lorenz & C.B. Bridges, 2014 - (CYPRAEIDAE)
- rosea vanwinkleae, Hysteroconcha rosea vanwinkleae A.A. Olsson, 1922 - (VENERIDAE)
- rosea wiedenmayeri, Pitar rosea wiedenmayeri F. Hodson, 1931 - syn of: Hysteroconcha rosea vanwinkleae A.A. Olsson, 1922 - (VENERIDAE)
- roseacincta, Splendrillia roseacincta R.K. Dell, 1956 - (DRILLIIDAE)
- roseae, Pyrazisinus roseae E.J. Petuch, 1991 † - (BATILLARIIDAE) (FOSSIL)
- roseae, Sinistrofulgur roseae E.J. Petuch, 1991 † - (BUSYCONIDAE) (FOSSIL)
- roseae, Crepidula roseae E.J. Petuch, 1991 † - (CALYPTRAEIDAE) (FOSSIL)
- roseae, Globinassa roseae E.J. Petuch, 1991 † - (NASSARIIDAE) (FOSSIL)
- roseae, Oliva roseae E.J. Petuch, 1991 † - (OLIVIDAE) (FOSSIL)
- roseae, Seminolina roseae E.J. Petuch, 1991 † - (PLANORBIDAE) (FOSSIL)
- roseafasciata, Marginella roseafasciata W. Massier, 1993 - (MARGINELLIDAE)
- roseaflavescens, Marginella roseaflavescens S.G. Veldsman, V. Veldsman & A. Aiken, 2016 - (MARGINELLIDAE)
- roseala, Janthina roseala L.A. Reeve, 1858 - syn of: Janthina janthina (C. Linnaeus, 1758) - (JANTHINIDAE)
- rosealbus, Chlamys rosealbus (O.A. Scarlato, 1981) - (PECTINIDAE)
- rosealimbata, Achatinella bulimoides rosealimbata D.A. Welch, 1958 - (ACHATINELLIDAE)
- Roseamarginella, syn of: Genus Marginella J.B.P.A. Lamarck, 1799 (MARGINELLIDAE)
- roseana, Bullina vitrea roseana W.B. Rudman, 1971 - (BULLINIDAE)
- roseana, Cylichna roseana W.B. Rudman, 1971 - syn of: Bullina vitrea roseana W.B. Rudman, 1971 - (CYLICHNIDAE)
- Roseana, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- roseangulata, Lienardia roseangulata A.E. Fedosov, 2011 - (CLATHURELLIDAE)
- roseapicale, Spectamen roseapicale D.G. Herbert, 1987 - (SOLARIELLIDAE)
- roseata, Achatinella apexfulva roseata D.A. Welch, 1942 - (ACHATINELLIDAE)
- roseata, Thala roseata (A. Adams, 1855) - (COSTELLARIIDAE)
- roseata, Terebra roseata A. Adams & L.A. Reeve, 1850 - syn of: Terebra textilis R.B. Hinds, 1844 - (TEREBRIDAE)
- roseatus, Mesembrinus roseatus (L.A. Reeve, 1848) - (BULIMULIDAE)
- roseatus, Antillophos roseatus (R.B. Hinds, 1844) - (NASSARIIDAE)
- roseatus, Liguus fasciatus roseatus H.A. Pilsbry, 1912 - (ORTHALICIDAE)
- roseatus montanus, Mesembrinus roseatus montanus H.A. Pilsbry, 1901 - (BULIMULIDAE)
- roseburgensis, Myrtucina roseburgensis (Hendon in Turner 1938) † - (CARDIIDA (UNASSIGNED)) (FOSSIL)
- roseburgensis, Latirus roseburgensis Hendon, 1938 † - (FASCIOLARIIDAE) (FOSSIL)
- rosei, Stalactella rosei P. Bartsch, 1906 - (EPIROBIIDAE)
- rosei, Peregrinoceras rosei R. Casey 1973 † - (POLYPTYCHITIDAE) (FOSSIL)
- roseipicta, Achatinella apexfulva roseipicta D.A. Welch, 1942 - (ACHATINELLIDAE)
- roselineae, Hydroginella roselineae T. Cossignani, 2009 - (MARGINELLIDAE)
- roselineae, Mitra roselineae J.C. Martin & R. Salisbury, 2013 - (MITRIDAE)
- rosella, Lienardia rosella C. Hedley, 1922 - (CLATHURELLIDAE)
- roselli, Delclosia roselli (Via, 1971 †) - (HAMINOEIDAE) (FOSSIL)
- roselli, Cerithideopsis roselli Dominici & T. Kowalke, 2014 † - (POTAMIDIDAE) (FOSSIL)
- Rosellia, Genus Rosellia Pons, 1977 † (RADIOLITIDAE) (FOSSIL)
- roselloi, Paladilhia roselloi H. Girardi, 2004 - (MOITESSIERIIDAE)
- rosemariae, Paralepetopsis rosemariae L.A. Beck, 1996 - (NEOLEPETOPSIDAE)
- rosemariensis, Acrosterigma rosemariensis B.R. Wilson & A. Stevenson, 1977 - syn of: Acrosterigma impolitum (G.B. II Sowerby, 1841) - (CARDIIDAE)
- rosemaryae, Gradiconus rosemaryae (E.J. Petuch, 1990) - (CONIDAE)
- rosemaryae, Tonna rosemaryae C.G. Vos, 1999 - (TONNIDAE)
- rosemontensis, Sonorella rosemontensis H.A. Pilsbry, 1939 - (HELMINTHOGLYPTIDAE)
- rosenbergi, Drymaeus rosenbergi S.I. Da Costa, 1906 - (BULIMULIDAE)
- rosenbergi, Peruinia peruana rosenbergi (H.B. Preston, 1907) - (CLAUSILIIDAE)
- rosenbergi, Suluspira rosenbergi (G.T. Poppe, E.G. Guillot de Suduiraut & S.P. Tagaro, 2006) - (COSTELLARIIDAE)
- rosenbergi, Austromitra rosenbergi R. Salisbury, 2015 - (COSTELLARIIDAE)
- rosenbergi, Cylindriscala rosenbergi E.F. Garcia, 2005 - (EPITONIIDAE)
- rosenbergi, Corona rosenbergi H. Strebel, 1909 - (ORTHALICIDAE)
- rosenbergi, Pseudocyphoma rosenbergi D. Fehse, 2001 - syn of: Cyphoma intermedium (G.B. I Sowerby, 1828) - (OVULIDAE)
- rosenbergi, Annularia rosenbergi R.A. Bank, 2008 - (POMATIIDAE)
- rosenbergi, Anagymnites rosenbergi Smith, 1914 † - syn of: Tropigastrites lahontanus Smith, 1914 † - (PROTEUSITIDAE) (FOSSIL)
- rosenbergiana, Tudora rosenbergiana (H.B. Preston, 1911) - (POMATIIDAE)
- rosenbergiana, Happia rosenbergiana H.B. Preston, 1914 - (SCOLODONTIDAE)
- roseni, Agriolimax roseni H.R. Simroth, 1912 - (AGRIOLIMACIDAE)
- roseni, Paratheba roseni (P. Hesse, 1914) - (HYGROMIIDAE)
- roseni, Melanopsis roseni Z.I. Izzatullaev & Y.I. Starobogatov, 1984 - (MELANOPSIDAE)
- roseni, Fagotia roseni Y.I. Starobogatov, 1992 - (MELANOPSIDAE)
- roseni, Parmacella roseni H.R. Simroth, 1912 - syn of: Levanderiella levanderi (H.R. Simroth, 1901) - (PARMACELLIDAE)
- roseni, Poiretia roseni W.A. Lindholm, 1924 - (SPIRAXIDAE)
- roseni, Stenothyra roseni R.A.M. Brandt, 1968 - (STENOTHYRIDAE)
- Rosenia, syn of: Genus Roseniella K.H.J. Thiele, 1931 (CLAUSILIIDAE)
- Rosenia, syn of: Genus Pelseneeria F. Koehler & C. Vaney, 1908 (EULIMIDAE)
- Roseniella, Genus Roseniella K.H.J. Thiele, 1931 (CLAUSILIIDAE)
- rosenkrantzi, Fusulculus rosenkrantzi (F. Traub, 1979 †) - (BENTHOBIIDAE) (FOSSIL)
- rosenkrantzi, Groenlandibelus rosenkrantzi (Birkelund, 1956 †) - (GROENLANDIBELIDAE) (FOSSIL)
- rosenkrantzi, Mathilda rosenkrantzi J.P.J. Ravn, 1933 † - (MATHILDIDAE) (FOSSIL)
- rosenkrantzi, Proptychites rosenkrantzi (Spath, 1930 †) - (PROPTYCHITIDAE) (FOSSIL)
- rosenkrantzi, Pseudoliva rosenkrantzi F. Traub, 1979 † - syn of: Fusulculus rosenkrantzi (F. Traub, 1979 †) - (PSEUDOLIVIDAE) (FOSSIL)
- rosenkrantzi, Pseudocochlespira rosenkrantzi Schnetler, 2001 † - (TURRIDAE) (FOSSIL)
- rosenstielanus, Hindsiclava rosenstielanus D.L. Tippett, 2007 - (PSEUDOMELATOMIDAE)
- rosenthali, Bankia rosenthali T. Iredale, 1932 - syn of: Bankia australis (W.T. Calman, 1920) - (TEREDINIDAE)
- roseoapicalis, Euhadra brandtii roseoapicalis J.T. Kuroda, 1969 - (BRADYBAENIDAE)
- roseoapicata, Chondrothyretes cerina roseoapicata (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- roseobasis, Cymatosyrinx roseobasis (E.A. Smith, 1883) - (DRILLIIDAE)
- roseobasis, Drillia roseobasis H.A. Pilsbry & E.G. Vanatta, 1902 - syn of: Drillia albicostata (G.B. I Sowerby, 1834) - (DRILLIIDAE)
- roseobasis, Astralium roseobasis K. Kreipl & H. Dekker, 2003 - syn of: Astralium provisorium (M.M. Schepman, 1903) - (TURBINIDAE)
- roseocarnea, Ovula roseocarnea M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1883 - syn of: Simnia spelta (C. Linnaeus, 1758) - (OVULIDAE)
- roseocaudata, Vexillum roseocaudata G.B. Sowerby, 1874 - syn of: Atlantilux exigua (C.B. Adams, 1845) - (COSTELLARIIDAE)
- roseocaudatum, Pusia roseocaudatum R.P.J. Hervier, 1895 - syn of: Vexillum roseotinctum (R.P.J. Hervier, 1897) - (COSTELLARIIDAE)
- roseoccidentalis, Pionoconus striatus roseoccidentalis L. Bozzetti, 2012 - (CONIDAE)
- roseocephala, Coralliophila roseocephala S. Kosuge, 1986 - (MURICIDAE)
- roseocincta, Lienardia roseocincta (W.R.B. Oliver, 1915) - (CLATHURELLIDAE)
- roseocincta, Eatoniella roseocincta (H.H. Suter, 1908) - (EATONIELLIDAE)
- roseoculma, Tridentifera roseoculma W.F. Ponder, 1966 - (RASTODENTIDAE)
- roseofuscus, Clavus roseofuscus L. Bozzetti, 2007 - (DRILLIIDAE)
- roseoimmaculata, Rissoa roseoimmaculata L. Raybaudi Massilia, 1985 - syn of: Iravadia quadrasi (O. Böttger, 1893) - (RISSOIDAE)
- roseojugum, Acanthochitona roseojugum W.G. Lyons, 1988 - (ACANTHOCHITONIDAE)
- roseola, Pisinna roseola T. Iredale, 1915 - syn of: Eatoniella roseola (T. Iredale, 1915) - (ANABATHRIDAE)
- roseola, Drillia roseola (L.G. Hertlein & A.M. Strong, 1955) - (DRILLIIDAE)
- roseola, Eatoniella roseola (T. Iredale, 1915) - (EATONIELLIDAE)
- roseola, Leurolepas roseola J.H. McLean, 1970 - (FISSURELLIDAE)
- roseola, Janthina roseola L.A. Reeve, 1858 - syn of: Janthina janthina (C. Linnaeus, 1758) - (JANTHINIDAE)
- roseola, Eurytellina roseola T. Iredale, 1936 - (TELLINIDAE)
- roseola, Tallorbis roseola G. Nevill & H. Nevill, 1869 - (TROCHIDAE)
- roseola lacteola, Eatoniella roseola lacteola (A.W.B. Powell, 1955) - (EATONIELLIDAE)
- roseolabiatus, Acavus superbus roseolabiatus G. Nevill, 1881 - (ACAVIDAE)
- roseolabiatus, Amphidromus roseolabiatus H.C. Fulton, 1896 - (CAMAENIDAE)
- roseolabra, Chrysallis roseolabra P. Bartsch, 1932 - (BRADYBAENIDAE)
- roseolabratum, Eurytus roseolabratum (E.A. Smith, 1877) - (AMPHIBULIMIDAE)
- roseolabris, Strophocheilus roseolabris J.C. Bequaert - (STROPHOCHEILIDAE)
- roseolabrum, Bulimus roseolabrum E.A. Smith, 1877 - syn of: Eurytus roseolabratum (E.A. Smith, 1877) - (BULIMULIDAE)
- roseoli, Cochlostoma roseoli A.J. Wagner, 1901 - (COCHLOSTOMATIDAE)
- roseoli kiriense, Cochlostoma roseoli kiriense A.J. Wagner, 1906 - (COCHLOSTOMATIDAE)
- roseoli prekalense, Cochlostoma roseoli prekalense (W. Polinski, 1924) - (COCHLOSTOMATIDAE)
- roseoli rioliense, Cochlostoma roseoli rioliense (A.J. Wagner, 1914) - (COCHLOSTOMATIDAE)
- roseoli scutariensis, Cochlostoma roseoli scutariensis A.J. Wagner, 1901 - (COCHLOSTOMATIDAE)
- roseolimbata, Polymita picta roseolimbata C. de la Torre, 1950 - (HELMINTHOGLYPTIDAE)
- roseolimbata minor, Polymita picta roseolimbata minor C. de la Torre, 1950 - (HELMINTHOGLYPTIDAE)
- roseolimbata virgata, Polymita picta roseolimbata virgata C. de la Torre, 1950 - (HELMINTHOGLYPTIDAE)
- roseolineata, Photinula roseolineata E.A. Smith, 1905 - (CALLIOSTOMATIDAE)
- roseolineata, Marginella roseolineata W.H. Turton, 1932 - (MARGINELLIDAE)
- roseolum, Calliostoma roseolum W.H. Dall, 1881 - (CALLIOSTOMATIDAE)
- roseolum, Cardium roseolum J.C. Melvill, 1909 - syn of: Afrocardium richardi (Audoin, 1826) - (CARDIIDAE)
- roseolus, Vaceuchelus roseolus (G. Nevill & H. Nevill, 1869) - (CHILODONTIDAE)
- roseomaculata, Pupa roseomaculata T. Iredale, 1936 - syn of: Pupa solidula (C. Linnaeus, 1758) - (ACTEONIDAE)
- roseomaculata, Primovula roseomaculata (M.M. Schepman, 1909) - (OVULIDAE)
- roseomaculata florida, Primovula roseomaculata florida (J.T. Kuroda, 1958) - (OVULIDAE)
- roseomaculatus, Solen roseomaculatus H.A. Pilsbry, 1901 - (SOLENIDAE)
- roseopicta, Chromodoris roseopicta A.E. Verrill, 1900 - (CHROMODORIDIDAE)
- roseopicta, Smaragdia roseopicta K.H.J. Thiele, 1930 - (NERITIDAE)
- roseopinna, Plagiostropha roseopinna M. Chino & P. Stahlschmidt, 2010 - (DRILLIIDAE)
- roseoplica, Achatinella sowerbyana roseoplica H.A. Pilsbry & C.M. Cooke, 1914 - (ACHATINELLIDAE)
- roseoprodissoconchus, Pitar roseoprodissoconchus J. Drivas & M. Jay, 1990 - syn of: Hyphantosoma nancyae (K.L. Lamprell & T. Whitehead, 1990) - (VENERIDAE)
- roseopunctata, Argalista roseopunctata (G.F. Angas, 1880) - (COLLONIIDAE)
- roseopunctata, Zoila venusta roseopunctata G. Raybaudi Massilia, 1985 - (CYPRAEIDAE)
- roseopunctata, Minolia roseopunctata J.T. Kuroda & T. Kinoshita, 1956 - (SOLARIELLIDAE)
- roseopunctata, Umbonium roseopunctata J.T. Kuroda & T. Kinoshita, 1956 - (TROCHIDAE)
- roseopunctata profunda, Zoila venusta roseopunctata profunda L. Raybaudi Massilia, 1990 - (CYPRAEIDAE)
- roseopunctata roseoimmaculata, Zoila venusta roseopunctata roseoimmaculata L. Raybaudi Massilia, 1985 - (CYPRAEIDAE)
- roseopunctatus, Mesopeplum roseopunctatus L.A. Reeve, 1853 - syn of: Mesopeplum convexum (J.R.C. Quoy, 1835) - (PECTINIDAE)
- roseoradiata, Acmaea roseoradiata H.H. Suter, 1907 - syn of: Asteracmea suteri (T. Iredale, 1915) - (ACMAEIDAE)
- roseoradiata, Acmaea roseoradiata J.C. Verco, 1912 - syn of: Asteracmea roseoradiata (J.C. Verco, 1912) - (ACMAEIDAE)
- roseoradiata, Asteracmea roseoradiata (J.C. Verco, 1912) - (LOTTIIDAE)
- roseorapum, Kioconus roseorapum (G. Raybaudi Massilia & A.J. Da Motta, 1990) - (CONIDAE)
- roseorobusta, Hemilienardia roseorobusta Wiedrick, 2017 - (RAPHITOMIDAE)
- roseosoma, Selatodryas roseosoma D.G. Herbert, 2017 - (UROCYCLIDAE)
- roseospira, Eatoniella roseospira (A.W.B. Powell, 1937) - (EATONIELLIDAE)
- roseotincta, Amastra mucronata roseotincta E.R. Sykes, 1896 - (AMASTRIDAE)
- roseotincta, Calliostoma nudum roseotincta H. Strebel, 1905 - (CALLIOSTOMATIDAE)
- roseotincta, Lienardia roseotincta (R.P. Montrouzier, 1872) - (CLATHURELLIDAE)
- roseotincta, Clathurella roseotincta R.P. Montrouzier, 1872 - syn of: Lienardia roseotincta (R.P. Montrouzier, 1872) - (CLATHURELLIDAE)
- roseotincta, Collonista roseotincta E.C. Von Martens, 1880 - syn of: Collonista purpurata (G.P. Deshayes, 1863) - (COLLONIIDAE)
- roseotincta, Anachis roseotincta R.P.J. Hervier, 1899 - syn of: Seminella peasei (E.C. Von Martens & B. Langkavel, 1871) - (COLUMBELLIDAE)
- roseotincta, Drillia roseotincta W.H. Dall, 1918 - syn of: Drillia albicostata (G.B. I Sowerby, 1834) - (DRILLIIDAE)
- roseotincta, Rhodinoliotia roseotincta (E.A. Smith, 1872) - (LIOTIIDAE)
- roseotincta, Cyclostrema roseotincta E.A. Smith, 1872 - syn of: Rhodinoliotia roseotincta (E.A. Smith, 1872) - (LIOTIIDAE)
- roseotincta, Mitra roseotincta R.P.J. Hervier, 1897 - syn of: Vexillum roseotinctum (R.P.J. Hervier, 1897) - (MITRIDAE)
- roseotincta, Favartia roseotincta R. Houart & S. Gori, 2011 - (MURICIDAE)
- roseotincta, Smaragdella roseotincta K.H.J. Thiele, 1930 † - (NERITIDAE) (FOSSIL)
- roseotincta, Parapholas roseotincta F.P. Jousseaume, 1891 - syn of: Parapholas quadrizonata (L. Spengler, 1792) - (PHOLADIDAE)
- roseotincta, Raphitoma roseotincta R.P. Montrouzier, 1872 - syn of: Lienardia roseotincta (R.P. Montrouzier, 1872) - (RAPHITOMIDAE)
- roseotincta, Obtusella roseotincta (P. Dautzenberg, 1889) - (RISSOIDAE)
- roseotincta, Ishnula roseotincta W.H. Dall, 1918 - syn of: Drillia albicostata (G.B. I Sowerby, 1834) - (TURRIDAE)
- roseotincta, Pleurotoma roseotincta R.P. Montrouzier, 1872 - syn of: Lienardia roseotincta (R.P. Montrouzier, 1872) - (TURRIDAE)
- roseotincta, Callista roseotincta (E.A. Smith, 1885) - (VENERIDAE)
- roseotinctum, Vexillum roseotinctum (R.P.J. Hervier, 1897) - (COSTELLARIIDAE)
- roseotinctum, Placamen roseotinctum (W. Baird in G.A. Brenchley, 1873) - (VENERIDAE)
- roseotinctus, Conus roseotinctus G.B. I Sowerby, 1866 - syn of: Floraconus anemone (J.B.P.A. Lamarck, 1810) - (CONIDAE)
- roseotinctus, Murex roseotinctus G.B. II Sowerby, 1860 - syn of: Naquetia triqueter (I. von Born, 1778) - (MURICIDAE)
- roseotinctus, Tellinides roseotinctus M. Huber, A. Langleit & K. Kreipl, 2015 - (TELLINIDAE)
- roseovitta, Domiporta roseovitta Y.F. Huang, 2011 - (MITRIDAE)
- rosettae, Mitra rosettae G.F. Angas, 1865 - syn of: Mitra badia L.A. Reeve, 1844 - (MITRIDAE)
- rosetti, Monilearia rosetti L. Pfeiffer - syn of: Monilearia phalerata (P.B. Webb & S. Berthelot, 1833) - (COCHLICELLIDAE)
- roseum, Parvicardium roseum (J.B.P.A. Lamarck, 1819 †) - (CARDIIDAE) (FOSSIL)
- roseum, Cardium roseum J.F. Gmelin, 1791 - syn of: Parvicardium scabrum (R.A. Philippi, 1844) - (CARDIIDAE)
- roseum, Miltoceras roseum Wiedenmayer, 1980 † - (COELOCERATIDAE) (FOSSIL)
- roseum, Vexillum roseum (W.J. Broderip, 1836) - (COSTELLARIIDAE)
- roseum, Morum roseum P. Bouchet, 2002 - (HARPIDAE)
- roseum, Phylliroe roseum D'Orbigny, 1836 - syn of: Phylliroe lichtensteinii J.F. von Eschscholtz, 1825 - (PHYLLIROIDAE)
- roseum, Cyclostoma roseum A.A. Gould, 1847 - (POMATIIDAE)
- roseum, Gyrineum roseum (L.A. Reeve, 1844) - (RANELLIDAE)
- roseum, Pisidium roseum J.E.H. Scholtz, 1843 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- roseum, Stephopoma roseum (J.R.C. Quoy & J.P. Gaimard, 1834) - (VERMETIDAE)
- roseus, Acteon roseus C. Hedley, 1906 - (ACTEONIDAE)
- roseus, Retifusus roseus (W.H. Dall, 1877) - (BUCCINIDAE)
- roseus, Limatofusus roseus W.H. Dall, 1877 - syn of: Retifusus roseus (W.H. Dall, 1877) - (BUCCINIDAE)
- roseus, Colus roseus W.H. Dall, 1877 - syn of: Retifusus roseus (W.H. Dall, 1877) - (BUCCINIDAE)
- roseus, Conus roseus J.B.P.A. Lamarck, 1810 - syn of: Splinoconus biliosus parvulus (J.H.F. Link, 1807) - (CONIDAE)
- roseus, Conus roseus G.B. I Sowerby, 1834 - syn of: Darioconus auratinus (A.J. Da Motta, 1982) - (CONIDAE)
- roseus, Conus roseus G. Fischer von Waldheim, 1807 - syn of: Atlanticonus granulatus (C. Linnaeus, 1758) - (CONIDAE)
- roseus, Fusus roseus J.B. Hombron & C.H. Jacquinot, 1852 - syn of: Pareuthria powelli W.O. Cernohorsky, 1977 - (FASCIOLARIIDAE)
- roseus, Glycymeris roseus L.A. Reeve, 1843 - syn of: Tucetona laticostata (J.R.C. Quoy, 1835) - (GLYCYMERIDIDAE)
- roseus, Ischnochiton roseus (G.B. I Sowerby, 1832) - (ISCHNOCHITONIDAE)
- roseus, Oenopota roseus (S.L. Lovén, 1846) - (MANGELIIDAE)
- roseus, Risomurex roseus L.A. Reeve, 1846 - syn of: Muricopsis rosea (L.A. Reeve, 1856) - (MURICIDAE)
- roseus, Mytilus roseus J.F. Gmelin, 1791 - syn of: Hyotissa mcgintyi (H.W. Harry, 1985) - (MYTILIDAE)
- roseus, Solen roseus J.F. Gmelin, 1791 - syn of: Hiatula rosea (J.F. Gmelin, 1791) - (SOLENIDAE)
- roseus, Spondylus roseus F.P. Jousseaume in É. Lamy, 1927 - (SPONDYLIDAE)
- roseus, Obeliscus roseus F.W. Hutton, 1873 - syn of: Zemitrella rosea (F.W. Hutton, 1873) - (SUBULINIDAE)
- roseus, Cantharidus roseus (F.W. Hutton, 1873) - (TROCHIDAE)
- roseus, Trochus roseus C.U.A. von Salis-Marschlins, 1793 - syn of: Clanculus corallinus (J.F. Gmelin, 1791) - (TROCHIDAE)
- roseus, Maoricolpus roseus (J.R.C. Quoy & J.P. Gaimard, 1834) - (TURRITELLIDAE)
- roseus manukauensis, Maoricolpus roseus manukauensis A.W.B. Powell, 1931 - (TURRITELLIDAE)
- roseveari, Cavellia roseveari (H.H. Suter, 1896) - (CHAROPIDAE)
- roseveari, Fectola roseveari (H.H. Suter, 1896) - syn of: Cavellia roseveari (H.H. Suter, 1896) - (CHAROPIDAE)
- rosewateri, Monostiolum rosewateri G.T. Watters & C.J. Finlay, 1989 - (BUCCINIDAE)
- rosewateri, Calliostoma rosewateri W.J. Clench & H. Turner, 1960 - (CALLIOSTOMATIDAE)
- rosewateri, Cancellaria rosewateri R.E. Petit, 1983 - (CANCELLARIIDAE)
- rosewateri, Entalina rosewateri V. Scarabino, MS - syn of: Entalina tetragona (G.B. Brocchi, 1814) - (ENTALINIDAE)
- rosewateri, Enotepteron rosewateri T.M. Gosliner, 1988 - (GASTROPTERIDAE)
- rosewateri, Somatogyrus rosewateri W.J. Gordon, 1986 - (LITHOGLYPHIDAE)
- rosewateri, Littoraria rosewateri D.G. Reid, 1999 - (LITTORINIDAE)
- rosewateri, Primovula rosewateri (C.N. Cate, 1973) - (OVULIDAE)
- rosewateri, Periploma rosewateri F.R. Bernard, 1989 - (PERIPLOMATIDAE)
- rosewateri, Turbonilla rosewateri J.X. Corgan & J.J. Van Aartsen, 1993 - (PYRAMIDELLIDAE)
- rosewateri, Solen rosewateri C.O. Van Regteren Altena, 1971 - (SOLENIDAE)
- rosewateri, Tridacna rosewateri B.I. Sirenko & O.A. Scarlato, 1991 - (TRIDACNIDAE)
- rosewoodensis, Pachydiscus rosewoodensis Anderson, 1958 † - syn of: Pachydesmoceras pachydiscoide E. Matsumoto, 1954 † - (DESMOCERATIDAE) (FOSSIL)
- roshkai, Planorbis roshkai Prysjazhnjuk & Kovalenko, 1986 † - (PLANORBIDAE) (FOSSIL)
- rosi, Tenorioconus rosi E.J. Petuch & D.P. Berschauer, 2015 - (CONIDAE)
- rosi, Discodoris rosi J.A. Ortea, 1979 - (DISCODORIDIDAE)
- rosifolia, Nototeredo rosifolia C.E. von Moll, 1941 - syn of: Nototeredo knoxi (P. Bartsch, 1917) - (TEREDINIDAE)
- rosifolia, Teredo rosifolia C.E. von Moll, 1941 - syn of: Nototeredo knoxi (P. Bartsch, 1917) - (TEREDINIDAE)
- rosillus, Latipes rosillus (K.H.J. Thiele, 1927) - (VERONICELLIDAE)
- rosimon, Camptochlamys rosimon d'Orbigny, 1850 † - (PECTINIDAE) (FOSSIL)
- rositae, Pteria rositae L.G. Hertlein, 1928 - syn of: Pteria sterna (A.A. Gould, 1851) - (PTERIIDAE)
- rositae, Pteria rositae L.G. Hertlein, 1928 - syn of: Pteria sterna (A.A. Gould, 1851) - (PTERIIDAE)
- rositai, Iberus marmoratus rositai S .de Fez, 1950 - (HELICIDAE)
- roskai, Segmentina roskai Gozhik & Prysjazhnjuk, 1978 † - (PLANORBIDAE) (FOSSIL)
- roskoi, Rhodope roskoi G. Haszprunar & Hess, 2005 - (RHODOPIDAE)
- Rosodoris, syn of: Genus Glossodoris C.G. Ehrenberg, 1831 (CHROMODORIDIDAE)
- rosolina, Drillia rosolina (F.P. Marrat, 1877) - (DRILLIIDAE)
- rosolina, Olivella rosolina (P.L. Duclos, 1835) - (OLIVELLIDAE)
- rossacki, Hastula rossacki J.E. Sprague, 2000 - (TEREBRIDAE)
- Rossalites, Genus Rossalites Casey, 1961 † (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- rossana, Semotrachia rossana G.A. Solem, 1993 - (CAMAENIDAE)
- rossati, Antalis rossati (E. Caprotti, 1966) - (DENTALIIDAE)
- rossbrookensis, Holopea rossbrookensis Peel, 1977 † - syn of: Holopea praecursor E.F.R.K. Koken & J. Perner, 1925 † - (HOLOPEIDAE) (FOSSIL)
- rossbrookiensis, Holopea rossbrookiensis Peel, 1977 † - (HOLOPEIDAE) (FOSSIL)
- rosseliana, Euplecta rosseliana (E.A. Smith, 1889) - (ARIOPHANTIDAE)
- rosseliana, Pupinella rosseliana E.A. Smith, 1889 - (PUPINIDAE)
- Rosselidena, Subgenus Trochomorpha (Rosselidena) Iredale, 1941 (TROCHOMORPHIDAE)
- rosselli, Zoila rosselli B.C. Cotton, 1948 - (CYPRAEIDAE)
- rosselli edingeri satiata, Zoila rosselli edingeri satiata L. Raybaudi Massilia, 1990 - syn of: Zoila rosselli satiata edingeri L. Raybaudi Massilia, 1990 - (CYPRAEIDAE)
- rosselli latistoma, Zoila rosselli latistoma F.Jr. Lorenz, 2002 - (CYPRAEIDAE)
- rosselli satiata, Zoila rosselli satiata F.Jr. Lorenz, 2002 - (CYPRAEIDAE)
- rosselli satiata edingeri, Zoila rosselli satiata edingeri L. Raybaudi Massilia, 1990 - (CYPRAEIDAE)
- rossellinum, Buccinum rossellinum W.H. Dall, 1919 - (BUCCINIDAE)
- rossellinus, Circulus rossellinus W.H. Dall, 1919 - (TORNIDAE)
- rossenrayensis, Tmetonema rossenrayensis K. Bandel, 2002 † - (ANOZYGIDAE) (FOSSIL)
- rosseti, Bugunzhites rosseti (Furon, 1951 †) - (CERATITIDAE) (FOSSIL)
- rossi, Mexicotrochactaeon rossi N.F. Sohl & H.A. Kollmann, 1985 † - (ACTEONELLIDAE) (FOSSIL)
- rossi, Trachycardium rossi J. Marwick, 1944 † - (CARDIIDAE) (FOSSIL)
- rossi, Chiton rossi Smith & al., 1968 † - (CHITONIDAE) (FOSSIL)
- rossi, Australoneilo rossi Zinsmeister, 1984 † - (MALLETIIDAE) (FOSSIL)
- rossi, Anostoma rossi E. Weber, 1925 - (ODONTOSTOMIDAE)
- rossi, Anostoma rossi F. Lange de Morretes, 1949 - syn of: Anostoma rossi E. Weber, 1925 - (ODONTOSTOMIDAE)
- rossi, Pleurotomella rossi R.K. Dell, 1990 - (RAPHITOMIDAE)
- rossi, Discoscaphites rossi Landman & Waage, 1993 † - (SCAPHITIDAE) (FOSSIL)
- rossi, Groomodiscus rossi Rohr & E.L. Yochelson, 1990 † - (TROPIDODISCIDAE) (FOSSIL)
- Rossia, Genus Rossia R. Owen, 1834 (SEPIOLIDAE)
- rossiae, Mitra rossiae L.A. Reeve, 1844 - (MITRIDAE)
- rossiaeformis, Sepiola rossiaeformis G.J. Pfeffer, 1884 - (SEPIOLIDAE)
- rossiana, Proneptunea rossiana (R.K. Dell, 1990) - (BUCCINIDAE)
- rossiana, Meteuthria rossiana R.K. Dell, 1990 - syn of: Proneptunea rossiana (R.K. Dell, 1990) - (BUCCINIDAE)
- rossiana, Meteuthria multituberculata rossiana R.K. Dell, 1990 - (BUCCINIDAE)
- rossiana, Amauropsis rossiana E.A. Smith, 1907 - (NATICIDAE)
- rossiana, Nucula rossiana Finlay, 1930 - (NUCULIDAE)
- rossiana, Besla rossiana C.R. Laws, 1941 - (PYRAMIDELLIDAE)
- rossiana, Powelliphanta rossiana (A.W.B. Powell, 1938) - (RHYTIDIDAE)
- rossiana, Brookula rossiana R.K. Dell, 1990 - (SEGUENZIOIDEA (UNASSIGNED))
- rossiana fletcheri, Powelliphanta rossiana fletcheri A.W.B. Powell, 1938 - syn of: Powelliphanta fletcheri (A.W.B. Powell, 1938) - (RHYTIDIDAE)
- rossiana gagei, Powelliphanta rossiana gagei A.W.B. Powell, 1938 - syn of: Powelliphanta gagei (A.W.B. Powell, 1938) - (RHYTIDIDAE)
- rossiana patrickensis, Powelliphanta rossiana patrickensis A.W.B. Powell, 1949 - syn of: Powelliphanta patrickensis (A.W.B. Powell, 1949) - (RHYTIDIDAE)
- rossianus, Antiguraleus rossianus A.W.B. Powell, 1942 - (MANGELIIDAE)
- rossianus, Lembulus rossianus A. Risso, 1826 - syn of: Nuculana pella (C. Linnaeus, 1767) - (NUCULANIDAE)
- rossica, Berendinella rossica A.V. Guzhov, 2005 † - (BERENDINELLIDAE) (FOSSIL)
- rossica, Otukaia rossica (W.H. Dall, 1919) - (CALLIOSTOMATIDAE)
- rossica, Liospira rossica (E.F.R.K. Koken, 1889 †) - (EOTOMARIIDAE) (FOSSIL)
- rossica, Adalaria rossica Martynov & Korshunova, 2017 - (ONCHIDORIDIDAE)
- rossica derjugini, Otukaia rossica derjugini (Y.I. Galkin, 1955) - (CALLIOSTOMATIDAE)
- Rossiceras, Genus Rossiceras Fantini Sestini, 1994 † (CERATITIDAE) (FOSSIL)
- Rossicoceras, Genus Rossicoceras Balashov, 1962 † (PROTEROCAMEROCERATIDAE) (FOSSIL)
- rossicum, Tropaeum rossicum T.L. Casey, 1960 † - (ANCYLOCERATIDAE) (FOSSIL)
- rossicum, Proaustraliceras rossicum (Glazunova, 1973 †) - (ANCYLOCERATIDAE) (FOSSIL)
- rossicum, Buccinum rossicum W.H. Dall, 1907 - (BUCCINIDAE)
- rossicum, Lophoceras rossicum Shimansky, 1957 † - (KONINCKIOCERATIDAE) (FOSSIL)
- rossicus, Acroloxus rossicus N.D. Kruglov & Y.I. Starobogatov, 1991 - (ACROLOXIDAE)
- rossicus, Margarites rossicus W.H. Dall, 1919 - (MARGARITIDAE)
- rossicus, Milax rossicus W.A. Lindholm, 1908 - (MILACIDAE)
- rossicus, Scabrotrophon rossicus (R.V. Egorov, 1993) - (MURICIDAE)
- rossicus, Schizodus rossicus de Verneuil, 1845 † - (SCHIZODIDAE) (FOSSIL)
- rossicus derjugini, Margarites rossicus derjugini Y.I. Galkin, 1955 - (MARGARITIDAE)
- rossiense, Rossiensiceras rossiense (Teisseyre, 1883 †) - (OPPELIIDAE) (FOSSIL)
- Rossiensiceras, Genus Rossiensiceras Gerard & Contaut, 1936 † (OPPELIIDAE) (FOSSIL)
- rossiensis, Aviculopecten rossiensis Netschajew, 1894 † - (AVICULOPECTINIDAE) (FOSSIL)
- rossii, Buccinum rossii W.E. Leach, 1819 - syn of: Boreotrophon clathratus (C. Linnaeus, 1767) - (BUCCINIDAE)
- rossii, Hydrobia rossii Š. Brusina, 1878 † - (HYDROBIIDAE) (FOSSIL)
- rossii, Zagrabica rossii Š. Brusina, 1897 † - (LYMNAEIDAE) (FOSSIL)
- rossii, Cochlis rossii (P. Oppenheim, , 1901 †) - (NATICIDAE) (FOSSIL)
- Rossiites, Genus Rossiites Lyashenko, 1980 † (ROSSIITIDAE) (FOSSIL)
- ROSSIITIDAE Lyashenko, 1969 † - Family (TENTACULITA-CHONIOCONARIDA [Subclass]-TROMPETOCONARIDA [Superorder]-VOLYNITIDA [Order]) (FOSSIL)
- rossiniana, Cymbiola rossiniana (M. Bernardi, 1859) - (VOLUTIDAE)
- rossinsulae, Melanella rossinsulae H.B. Preston, 1916 - syn of: Melanella attenuata (G.B. II Sowerby, 1866) - (EULIMIDAE)
- rossinsulae, Eulima rossinsulae H.B. Preston, 1916 - syn of: Melanella attenuata (G.B. II Sowerby, 1866) - (EULIMIDAE)
- Rossiodus, Genus Rossiodus Allasinaz , 1965 † (REQUIENIIDAE) (FOSSIL)
- rossiteri, Placostylus rossiteri J.W. Brazier, 1881 - syn of: Placostylus bondeensis rossiteri (J.W. Brazier, 1881) - (BOTHRIEMBRYONTIDAE)
- rossiteri, Placostylus bondeensis rossiteri (J.W. Brazier, 1881) - (BOTHRIEMBRYONTIDAE)
- rossiteri, Bulimus rossiteri J.W. Brazier, 1881 - syn of: Placostylus bondeensis rossiteri (J.W. Brazier, 1881) - (BULIMULIDAE)
- rossiteri, Conus rossiteri J.W. Brazier, 1870 - syn of: Floraconus papilliferus (G.B. I Sowerby, 1834) - (CONIDAE)
- rossiteri, Contradusta rossiteri P. Dautzenberg, 1903 - syn of: Contradusta bregeriana (J.C.H. Crosse, 1868) - (CYPRAEIDAE)
- rossiteri, Dendrodoris rossiteri (J.C.H. Crosse, 1875) - (DENDRODORIDIDAE)
- rossiteri, Gastrocopta rossiteri (J.W. Brazier, 1875) - (GASTROCOPTIDAE)
- rossiteri, Melanopsis rossiteri J. Gassies, 1880 - syn of: Melanopsis frustulum P.M.A. Morelet, 1857 - (MELANOPSIDAE)
- rossiteri, Chicoreus rossiteri (J.C.H. Crosse, 1872) - (MURICIDAE)
- rossiteri, Murex rossiteri J.C.H. Crosse, 1872 - syn of: Chicoreus rossiteri (J.C.H. Crosse, 1872) - (MURICIDAE)
- rossiteri, Gyraulus rossiteri (J.C.H. Crosse, 1871) - (PLANORBIDAE)
- rossiteri, Gari rossiteri J.C.H. Crosse, 1873 - syn of: Gari oriens (G.P. Deshayes, 1855) - (PSAMMOBIIDAE)
- rossiteri, Psammobia rossiteri J.C.H. Crosse, 1873 - syn of: Gari oriens (G.P. Deshayes, 1855) - (PSAMMOBIIDAE)
- rossiteri, Inella rossiteri F.P. Jousseaume, 1884 - (TRIPHORIDAE)
- rossiteri, Alcithoe rossiteri J.W. Brazier, 1898 - syn of: Alcithoe arabica (J.F. Gmelin, 1791) - (VOLUTIDAE)
- Rossiteria, Genus Rossiteria J.W. Brazier, 1895 (TROCHIDAE)
- rossmaesleri, Mangelia rossmaesleri H.E. Anton, 1838 - syn of: Mangelia vauquelini (B.C.M. Payraudeau, 1826) - (MANGELIIDAE)
- rossmaessleri, Chondrina rossmaessleri E.A. Rossmässler, 1838 - (CHONDRINIDAE)
- rossmaessleri, Abida rossmaessleri P. Fagot & Nansouty, 1875 - syn of: Abida bigerrensis A. Moquin-Tandon, 1856 - (CHONDRINIDAE)
- rossmaessleri, Dilataria rossmaessleri M. Lessona, 1880 - syn of: Dilataria succineata (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- rossmaessleri, Alopia plumbea rossmaessleri H. Nordsieck, 1977 - (CLAUSILIIDAE)
- rossmaessleri, Mytilopsis rossmaessleri R.W. Dunker, 1853 - syn of: Mytilopsis sallei (C.A. Récluz, 1849) - (DREISSENIDAE)
- rossmaessleri, Mastus rossmaessleri L. Pfeiffer, 1846 - (ENIDAE)
- rossmaessleri, Chilostoma rossmaessleri (L. Pfeiffer, 1842) - (HELICIDAE)
- rossmaessleri, Campylaea rossmaessleri S. Clessin, 1887 - syn of: Cingulifera cingulatum baldense (E.A. Rossmässler, 1839) - (HELICIDAE)
- rossmaessleri, Walklea rossmaessleri (E.A. Rossmässler, 1838) - (ORCULIDAE)
- rossmaessleri, Hyalocornea rossmaessleri C.A. Westerlund, 1876 - syn of: Hyalocornea canini (L. Benoit, 1843) - (OXYCHILIDAE)
- rossmaessleri, Gyraulus rossmaessleri (B. Auerswald, 1851) - (PLANORBIDAE)
- rossmaessleri, Pseudanodonta rossmaessleri V.I. Zhadin, 1952 - syn of: Pseudanodonta elongata (J.J.J. Holandre, 1836) - (UNIONIDAE)
- rossmaessleri, Pseudanodonta rossmaessleri J.R. Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848) - (UNIONIDAE)
- rossmaessleri, Haviyipaludina rossmaessleri J.R. Bourguignat, 1880 - syn of: Viviparus ater G.J. De Cristofori & G. Jan, 1832 - (VIVIPARIDAE)
- rossmaessleri euxina, Pseudanodonta rossmaessleri euxina W. Kobelt & F. Haas, 1911 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848) - (UNIONIDAE)
- rossmaessleri gocevi, Mastus rossmaessleri gocevi J. Petrbok - (ENIDAE)
- Rossmaessleria, Genus Rossmaessleria P. Hesse, 1907 (HELICIDAE)
- rossmassleri, Melanopsis rossmassleri (J.R. Bourguignat, 1884) - (MELANOPSIDAE)
- rossmassleri, Planorbis rossmassleri C. Hartwich, 1914 - syn of: Gyraulus acronicus (A.E.J. Férussac, 1807) - (PLANORBIDAE)
- Rossmassleria, syn of: Genus Rossmaessleria P. Hesse, 1907 (HELICIDAE)
- Rossoceras, Genus Rossoceras Flower, 1964 † (PADUNOCERATIDAE) (FOSSIL)
- rossoi, Cadulus rossoi M. Nicklés, 1979 - (GADILIDAE)
- rossorum, Suttonoceras rossorum Miller & Youngquist, 1947 † - (DIESTOCERATIDAE) (FOSSIL)
- Rossospira, Genus Rossospira Rohr, 1994 † (OPHILETIDAE) (FOSSIL)
- rossquicki, Aphelodoris rossquicki R.F. Burn, 1966 - (DORIDIDAE)
- rostae, Acar rostae (S.S. Berry, 1954) - (ARCIDAE)
- rostae, Barbatia rostae S.S. Berry, 1954 - syn of: Acar rostae (S.S. Berry, 1954) - (ARCIDAE)
- rostalina, Natica rostalina B.W. Jenkins, 1864 † - (NATICIDAE) (FOSSIL)
- Rostanga, Genus Rostanga L.S.R. Bergh, 1879 (DISCODORIDIDAE)
- Rostarca, Subgenus Barbatia (Rostarca) M. Glibert & L. van de Poel, 1965 (ARCIDAE)
- rostella, Crenavolva rostella C.N. Cate, 1973 - syn of: Cuspivolva singularis (C.N. Cate, 1973) - (OVULIDAE)
- Rostellaca, Genus Rostellaca Dall, 1907 † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Rostellana, Genus Rostellana Dall, 1907 † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Rostellaria, Genus Rostellaria Lamarck, 1799 (ROSTELLARIIDAE)
- Rostellariella, Genus Rostellariella K.H.J. Thiele, 1929 (ROSTELLARIIDAE)
- ROSTELLARIIDAE Gabb, 1868 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-LITTORINIMORPHA [Order]-STROMBOIDEA [Superfamily])
- rostellata, Notoplax rostellata P. Kaas, 1990 - (ACANTHOCHITONIDAE)
- rostellata, Gaimardia rostellata (R. Tate, 1889) - (GAIMARDIIDAE)
- rostellata, Kellia rostellata R. Tate, 1889 - syn of: Gaimardia rostellata (R. Tate, 1889) - (KELLIIDAE)
- rostellata, Neolepton rostellata (R. Tate, 1889) - (NEOLEPTONIDAE)
- rostellata, Nuculana rostellata T.A. Conrad, 1841 † - (NUCULANIDAE) (FOSSIL)
- rostellata, Leporimetis rostellata (Clark, 1918 †) - (TELLINIDAE) (FOSSIL)
- Rostellinda, Genus Rostellinda Dall, 1907 † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Rostellum, syn of: Genus Tibia P.F. Röding, 1798 (ROSTELLARIIDAE)
- rostharsi, Nassarius rostharsi (P. Partsch in R. Hoernes, 1870 †) - (NASSARIIDAE) (FOSSIL)
- rosthorni, Omphaloptycha rosthorni (R. Hoernes, 1856 †) - (COELOSTYLINIDAE) (FOSSIL)
- rosthorni, Nassarius rosthorni (P. Partsch, 1856 †) - (NASSARIIDAE) (FOSSIL)
- rosthorni, Chemnitzia rosthorni R. Hoernes, 1856 † - syn of: Omphaloptycha rosthorni (R. Hoernes, 1856 †) - (PYRAMIDELLIDAE) (FOSSIL)
- rosthornii, Goniatites rosthornii Klipstein, 1843 † - (GONIATITIDAE) (FOSSIL)
- rostra, Myonera rostra J. Poutiers & F.R. Bernard, 1995 - (CUSPIDARIIDAE)
- rostrae, Acar rostrae S.S. Berry, 1954 - (ARCIDAE)
- rostraeformis, Unio rostraeformis I. Lea, 1856 - syn of: Elliptio lanceolata I. Lea, 1827 - (UNIONIDAE)
- rostralina, Proadusta rostralina L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- rostralina, Simnia rostralina G.P. Deshayes, 1865 † - (OVULIDAE) (FOSSIL)
- rostralina, Tellina rostralina G.P. Deshayes, 1825 † - (TELLINIDAE) (FOSSIL)
- rostralis, Crypta rostralis T.A. Conrad, 1865 - syn of: Crepidula adunca G.B. I Sowerby, 1825 - (CALYPTRAEIDAE)
- rostralis, Glauconome rostralis G.P. Deshayes, 1853 - syn of: Glauconome straminea L.A. Reeve, 1844 - (GLAUCONOMIDAE)
- rostralis, Spirialis rostralis J.F.T. Eydoux & L.F.A. Souleyet, 1840 - syn of: Heliconoides inflatus (A.V.M.D. D'Orbigny, 1834) - (LIMACINIDAE)
- rostralis, Raeta rostralis L.A. Reeve, 1854 - syn of: Raeta pulchella (A. Adams & L.A. Reeve, 1850) - (MACTRIDAE)
- rostralis, Murexsul rostralis (J.P.S. Grateloup, 1847 †) - (MURICIDAE) (FOSSIL)
- rostralis, Ostrea rostralis J.B.P.A. Lamarck, 1819 - syn of: Isognomon alatus J.F. Gmelin, 1791 - (OSTREIDAE)
- rostralis, Crassostrea rostralis G.B. II Sowerby, 1871 - syn of: Crassostrea gigas (C.P. Thunberg, 1793) - (OSTREIDAE)
- rostralis, Isognomon rostralis J.B.P.A. Lamarck, 1819 - syn of: Isognomon alatus J.F. Gmelin, 1791 - (PTERIIDAE)
- rostralis, Tellina rostralis J.B.P.A. Lamarck, 1806 † - (TELLINIDAE) (FOSSIL)
- rostrata, Latiala rostrata (W.M. Gabb, 1860 †) - (APORRHAIDAE) (FOSSIL)
- rostrata, Archinacella rostrata J. Perner, 1903 † - (ARCHINACELLIDAE) (FOSSIL)
- rostrata, Arca rostrata G. Montagu, 1808 - syn of: Nuculana montagui (Gray, 1825) - (ARCIDAE)
- rostrata, Arca rostrata J.G. Bruguière, 1789 - syn of: Nuculana pernula (O.F. Müller, 1779) - (ARCIDAE)
- rostrata, Anisocardia rostrata (G.B. Sowerby, 1821 †) - (ARCTICIDAE) (FOSSIL)
- rostrata, Bakevellia rostrata Yabe, 1956 † - (BAKEVELLIIDAE) (FOSSIL)
- rostrata, Pisania rostrata R. Tate, 1888 † - (BUCCINIDAE) (FOSSIL)
- rostrata, Bulla rostrata A. Adams, 1850 - syn of: Volvulella rostrata (A. Adams, 1850) - (BULLIDAE)
- rostrata, Crepidula rostrata C.B. Adams, 1852 - (CALYPTRAEIDAE)
- rostrata, Gonamella rostrata Valkov & Karlova, 1986 † - (CARINOPELTIDAE) (FOSSIL)
- rostrata, Ceratomyopsis rostrata J.H.F. Douvillé, 1916 † - (CERATOMYOPSIDAE) (FOSSIL)
- rostrata, Glyphostoma rostrata A.V. Sysoev & P. Bouchet, 2001 - (CLATHURELLIDAE)
- rostrata, Turricula rostrata (D.C. Solander, 1766 †) - (CLAVATULIDAE) (FOSSIL)
- rostrata, Corbula rostrata H. Adams, 1868 - syn of: Potamocorbula adamsi (G.W. Tryon, 1869) - (CORBULIDAE)
- rostrata, Crenocrassatella rostrata (J.B.P.A. Lamarck, 1818) - (CRASSATELLIDAE)
- rostrata, Cuspidaria rostrata (L. Spengler, 1793) - (CUSPIDARIIDAE)
- rostrata, Iphigenia rostrata A. Römer, 1869 - syn of: Iphigenia laevigata (J.F. Gmelin, 1791) - (DONACIDAE)
- rostrata, Euciroa rostrata (K.H.J. Thiele & S.G.A. Jaeckel, 1931) - (EUCIROIDAE)
- rostrata, Cornisepta rostrata (G. Seguenza, 1863) - (FISSURELLIDAE)
- rostrata, Puncturella rostrata Auct. non G. Seguenza, 1863 - syn of: Cornisepta acuminata (R.B. Watson, 1883) - (FISSURELLIDAE)
- rostrata, Spengleria rostrata (L. Spengler, 1793) - (GASTROCHAENIDAE)
- rostrata, Isocardia rostrata Münster, 1841 † - syn of: Pachyrisma rostratum (Münster, 1841 †) - (GLOSSIDAE) (FOSSIL)
- rostrata, Isocardia rostrata G.B. Sowerby, 1821 † - syn of: Anisocardia rostrata (G.B. Sowerby, 1821 †) - (GLOSSIDAE) (FOSSIL)
- rostrata, Loxana beaumieri rostrata (P.M. Pallary, 1926) - (HELICIDAE)
- rostrata, Tristramia rostrata (P.M.A. Morelet, 1849) - (HELICINIDAE)
- Rostrata, syn of: Subgenus Helicina (Tristramia) J.C.H. Crosse, 1863 (HELICINIDAE)
- rostrata, Panopea rostrata Matheron † - (HIATELLIDAE) (FOSSIL)
- rostrata, Mutela rostrata (P.C.A.S.L. Rang, 1835) - (IRIDINIDAE)
- rostrata, Laternula rostrata (G.B. II Sowerby, 1839) - (LATERNULIDAE)
- rostrata, Liotia rostrata C. Hedley, 1900 - syn of: Canimarina rostrata (C. Hedley, 1900) - (LIOTIIDAE)
- rostrata, Lioprora rostrata C. Hedley, 1900 - syn of: Canimarina rostrata (C. Hedley, 1900) - (LIOTIIDAE)
- rostrata, Megaxinus rostrata (V. Pecchioli, 1864) - (LUCINIDAE)
- rostrata, Lyonsia rostrata C.E. Lischke, 1874 - syn of: Lyonsia ventricosa A.A. Gould, 1861 - (LYONSIIDAE)
- rostrata, Barymactra rostrata (L. Spengler, 1802) - (MACTRIDAE)
- rostrata, Mactra rostrata Philipp, 1849 - syn of: Mulinia lateralis (T. Say, 1822) - (MACTRIDAE)
- rostrata, Mactra rostrata L.A. Reeve, 1854 - syn of: Spisula trigonella (J.B.P.A. Lamarck, 1818) - (MACTRIDAE)
- rostrata, Anatina rostrata G.B. II Sowerby, 1839 - syn of: Laternula rostrata (G.B. II Sowerby, 1839) - (MACTRIDAE)
- rostrata, Mactra rostrata L. Spengler, 1802 - syn of: Barymactra rostrata (L. Spengler, 1802) - (MACTRIDAE)
- rostrata, Marginella rostrata J.H. Redfield, 1870 - syn of: Prunum rostratum (J.H. Redfield, 1870) - (MARGINELLIDAE)
- rostrata, Sphenia rostrata (J.B.P.A. Lamarck, 1806 †) - (MYIDAE) (FOSSIL)
- rostrata, Mya rostrata L. Spengler, 1793 - syn of: Cuspidaria rostrata (L. Spengler, 1793) - (MYIDAE)
- rostrata, Nuculana rostrata G. Montagu, 1808 - syn of: Nuculana montagui (Gray, 1825) - (NUCULANIDAE)
- rostrata, Ostrea rostrata J.F. Gmelin, 1791 - syn of: Ostrea edulis C. Linnaeus, 1758 - (OSTREIDAE)
- rostrata, Ostrea rostrata G.B. II Sowerby, 1871 - syn of: Crassostrea virginica (J.F. Gmelin, 1791) - (OSTREIDAE)
- rostrata, Ostrea rostrata F. Danilo & G.B. Sandri, 1856 - syn of: Ostrea edulis C. Linnaeus, 1758 - (OSTREIDAE)
- rostrata, Pandora rostrata J.B.P.A. Lamarck, 1818 - syn of: Pandora albida (P.F. Röding, 1798) - (PANDORIDAE)
- rostrata, Pandora rostrata R.A. Philippi, 1836 - syn of: Pandora inaequivalvis (C. Linnaeus, 1758) - (PANDORIDAE)
- rostrata, Siliqua rostrata (R.W. Dunker, 1862) - (PHARIDAE)
- rostrata, Caracolus marginella rostrata L. Pfeiffer, 1847 - (PLEURODONTIDAE)
- rostrata, Plicatula rostrata Martin, 1883 † - (PLICATULIDAE) (FOSSIL)
- rostrata, Poromya rostrata H.A. Rehder, 1943 - (POROMYIDAE)
- rostrata, Hiatula rostrata (J. Lightfoot, 1786) - (PSAMMOBIIDAE)
- rostrata, Linatella rostrata O.A.L. Mörch, 1852 - syn of: Linatella caudata (J.F. Gmelin, 1791) - (RANELLIDAE)
- rostrata, Volvulella rostrata (A. Adams, 1850) - (RHIZORIDAE)
- rostrata, Scrobicularia rostrata H. Adams, 1868 - syn of: Leptomya rostrata (H. Adams, 1868) - (SCROBICULARIIDAE)
- rostrata, Leptomya rostrata (H. Adams, 1868) - (SEMELIDAE)
- rostrata, Tellina rostrata (C. Linnaeus, 1758) - (TELLINIDAE)
- rostrata, Pharaonella rostrata C. Linnaeus, 1758 - syn of: Tellina rostrata (C. Linnaeus, 1758) - (TELLINIDAE)
- rostrata, Canimarina rostrata (C. Hedley, 1900) - (TORNIDAE)
- rostrata, Cypricardia rostrata J.B.P.A. Lamarck, 1819 - syn of: Trapezium bicarinatum (H.C.F. Schumacher, 1817) - (TRAPEZIDAE)
- rostrata, Mackinnonia rostrata (W.C. Zhou & Q. Xiao, 1984 †) - (TRENELLIDAE) (FOSSIL)
- rostrata, Truncatella rostrata A.A. Gould, 1848 - (TRUNCATELLIDAE)
- rostrata, Ungulina rostrata Martin, 1883 † - (UNGULINIDAE) (FOSSIL)
- rostrata, Anodonta rostrata E.A. Rossmässler, 1836 - syn of: Anodonta anatina (C. Linnaeus, 1758) - (UNIONIDAE)
- rostrata, Grandidieria burtoni rostrata J.R. Bourguignat, 1885 - (UNIONIDAE)
- rostrata, Vacunella rostrata Nakazawa & Newell, 1968 † - (VACUNELLIDAE) (FOSSIL)
- rostrata, Piliscus rostrata A.N. Golikov & V.V. Gulbin, 1990 - syn of: Piliscus rostratus (A.N. Golikov & V.V. Gulbin, 1990) - (VELUTINIDAE)
- rostrata, Cytherea rostrata F.C.L. Koch in R.A. Philippi, 1844 - syn of: Pitar patagonicus (A.V.M.D. D'Orbigny, 1842) - (VENERIDAE)
- rostrata, Venus rostrata G.B. II Sowerby, 1853 - syn of: Anomalocardia cuneimeris (T.A. Conrad, 1846) - (VENERIDAE)
- rostrata, Haliris rostrata K.H.J. Thiele & S.G.A. Jaeckel, 1931 - syn of: Euciroa rostrata (K.H.J. Thiele & S.G.A. Jaeckel, 1931) - (VERTICORDIIDAE)
- rostrata brevior, Mutela rostrata brevior C. Dupuis & S. Putzeys - syn of: Mutela rostrata (P.C.A.S.L. Rang, 1835) - (IRIDINIDAE)
- rostrata denticulata, Tristramia rostrata denticulata (L. Pfeiffer, 1855) - (HELICINIDAE)
- rostrata germaini, Mutela rostrata germaini C. Dupuis & S. Putzeys - syn of: Mutela rostrata (P.C.A.S.L. Rang, 1835) - (IRIDINIDAE)
- rostrata major, Cuspidaria rostrata major P. Dautzenberg & H. Fischer, 1897 - syn of: Cuspidaria rostrata (L. Spengler, 1793) - (CUSPIDARIIDAE)
- rostrata major, Anodonta rostrata major Š. Brusina, 1866 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- rostrata matagalpensis, Tristramia rostrata matagalpensis A.J. Wagner, 1910 - (HELICINIDAE)
- rostrata microrhina, Cuspidaria rostrata microrhina W.H. Dall, 1886 - syn of: Cuspidaria microrhina W.H. Dall, 1886 - (CUSPIDARIIDAE)
- rostrata minor, Mutelina rostrata minor J. Germain, 1906 - syn of: Mutela rostrata (P.C.A.S.L. Rang, 1835) - (IRIDINIDAE)
- rostrata simplex, Helicina rostrata simplex P.H. Fischer & J.C.H. Crosse, 1893 - syn of: Tristramia rostrata (P.M.A. Morelet, 1849) - (HELICINIDAE)
- rostrata teramachii, Euciroa rostrata teramachii J.T. Kuroda, 1952 - (EUCIROIDAE)
- rostratellus, Unio rostratellus J.R. Bourguignat, 1882 - syn of: Unio pictorum (C. Linnaeus, 1758) - (UNIONIDAE)
- rostratiforme, Megalodon rostratiforme Krumbeck, 1913 † - (MEGALODONTIDAE) (FOSSIL)
- rostratis, Fusinus rostratis (A.G. Olivi, 1792 †) - (FASCIOLARIIDAE) (FOSSIL)
- rostrato, Corbula rostrato G. Acton, 1856 - syn of: Cardiomya costellata (G.P. Deshayes, 1835) - (CORBULIDAE)
- rostratocostellata, Corbula rostratocostellata G. Acton, 1856 - syn of: Cardiomya costellata (G.P. Deshayes, 1835) - (CORBULIDAE)
- rostratocostellata, Cardiomya rostratocostellata G. Acton, 1856 - syn of: Cardiomya costellata (G.P. Deshayes, 1835) - (CUSPIDARIIDAE)
- rostratruncata, Nuculana rostratruncata Gardner, 1916 † - (NUCULANIDAE) (FOSSIL)
- rostratula, Ervilia rostratula H.A. Rehder, 1943 - syn of: Ervilia nitens (G. Montagu, 1808) - (SEMELIDAE)
- rostratum, Subschloenbachia rostratum (Sowerby, 1817 †) - (BRANCOCERATIDAE) (FOSSIL)
- rostratum, Caecum rostratum L. de Folin, 1881 - (CAECIDAE)
- rostratum, Cerithium rostratum A. Adams in G.B. II Sowerby, 1855 - (CERITHIIDAE)
- rostratum, Conocardium rostratum Fleming, 1828 † - syn of: Conocardium elongatum (J. de C. Sowerby, 1815 †) - (CONOCARDIIDAE) (FOSSIL)
- rostratum, Epitonium rostratum F.P. Jousseaume, 1912 - syn of: Epitonium gradilis (F.P. Jousseaume, 1912) - (EPITONIIDAE)
- rostratum, Eumorphoceras rostratum L.G. Yates, 1962 † - (GIRTYOCERATIDAE) (FOSSIL)
- rostratum, Gnathodon rostratum S.A.A. Petit De La Saussaye, 1853 - syn of: Rangia flexuosa (T.A. Conrad, 1839) - (MACTRIDAE)
- rostratum, Prunum rostratum (J.H. Redfield, 1870) - (MARGINELLIDAE)
- rostratum, Pachyrisma rostratum (Münster, 1841 †) - (PACHYRISMATIDAE) (FOSSIL)
- rostratum, Netastoma rostratum (A. Valenciennes, 1846) - (PHOLADIDAE)
- rostratum, Kenseyoceras rostratum Selwood, 1960 † - syn of: Kenseyoceras biforme (Schindewolf, 1937 †) - (PRIONOCERATIDAE) (FOSSIL)
- rostratum, Mellopegma rostratum W.C. Zhou & Q. Xiao, 1984 † - syn of: Mackinnonia rostrata (W.C. Zhou & Q. Xiao, 1984 †) - (STENOTHECIDAE) (FOSSIL)
- rostratum, Miralabrum rostratum C. Hedley, 1900 - syn of: Canimarina rostrata (C. Hedley, 1900) - (TORNIDAE)
- rostratus, Capulus rostratus Trenkner, 1868 † - syn of: Orthonychia rostratus (Trenkner, 1868 †) - (CAPULIDAE) (FOSSIL)
- rostratus, Chitonellus rostratus L.A. Reeve, 1847 - syn of: Cryptoplax striata (J.B.P.A. Lamarck, 1819) - (CRYPTOPLACIDAE)
- rostratus, Fusinus rostratus (A.G. Olivi, 1792) - (FASCIOLARIIDAE)
- rostratus, Omojuvavites rostratus Tozer, 1994 † - (JUVAVITIDAE) (FOSSIL)
- rostratus, Magilus rostratus (A. Adams, 1864) - (MURICIDAE)
- rostratus, Brachidontes rostratus (R.W. Dunker, 1857) - (MYTILIDAE)
- rostratus, Neripteron rostratus (L.A. Reeve, 1856) - (NERITIDAE)
- rostratus, Orthonychia rostratus (Trenkner, 1868 †) - (ORTHONYCHIIDAE) (FOSSIL)
- rostratus, Plicatounio rostratus H. Guo, 1981 † - (PLICATOUNIONIDAE) (FOSSIL)
- rostratus, Spondylus rostratus J.C. Chenu, 1845 - syn of: Spondylus nicobaricus K. Schreibers, 1793 - (SPONDYLIDAE)
- rostratus, Trochus rostratus J.F. Gmelin, 1791 - syn of: Cantharidus purpureus (J.F. Gmelin, 1791) - (TROCHIDAE)
- rostratus, Unio pictorum rostratus J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- rostratus, Piliscus rostratus (A.N. Golikov & V.V. Gulbin, 1990) - (VELUTINIDAE)
- rostratus, Pitar rostratus (R.A. Philippi, 1844) - (VENERIDAE)
- rostratus, Tapes rostratus É.A.A. Locard, 1886 - syn of: Polititapes aureus (J.F. Gmelin, 1791) - (VENERIDAE)
- rostratus bengasiensis, Fusinus rostratus bengasiensis R. Sturany, 1896 - (FASCIOLARIIDAE)
- rostratus bicanalifera, Fusinus rostratus bicanalifera (G.S. Coen, 1933) - (FASCIOLARIIDAE)
- rostratus carinatus, Fusinus rostratus carinatus R. Del Prete, 1883 - (FASCIOLARIIDAE)
- rostratus gentilis, Unio rostratus gentilis P. Hesse, 1911 - syn of: Unio pictorum (C. Linnaeus, 1758) - (UNIONIDAE)
- rostratus rusticulus, Fusinus rostratus rusticulus T.A. de M. Monterosato, 1880 - syn of: Fusinus rusticulus (T.A. de M. Monterosato, 1880) - (FASCIOLARIIDAE)
- rostratus sowerbyana, Fusinus rostratus sowerbyana T.A. de M. Monterosato, 1890 - syn of: Trophonopsis muricata (G. Montagu, 1803) - (FASCIOLARIIDAE)
- rostrella, Bradybaena rostrella (L. Pfeiffer, 1862) - (BRADYBAENIDAE)
- Rostreulima, Genus Rostreulima A.E.M. Cossmann, 1913 (EULIMIDAE)
- rostricola, Helicopelta rostricola B.A. Marshall, 1996 - (ADDISONIIDAE)
- rostriferum, Dacrydium rostriferum F.R. Bernard, 1978 - (MYTILIDAE)
- rostriformis, Crepidula rostriformis A.A. Gould, 1846 - syn of: Crepidula adunca G.B. I Sowerby, 1825 - (CALYPTRAEIDAE)
- rostriformis, Dreissena rostriformis (G.P. Deshayes, 1838) - (DREISSENIDAE)
- rostriformis, Acrocoelites rostriformis (Theodori, 1837 †) - (MEGATEUTHIDIDAE) (FOSSIL)
- rostriformis, Mytilus rostriformis G.P. Deshayes, 1838 - syn of: Dreissena rostriformis (G.P. Deshayes, 1838) - (MYTILIDAE)
- rostriformis, Solen rostriformis R.W. Dunker, 1862 - (SOLENIDAE)
- rostriformis, Yoldia rostriformis Y.B. Gladenkov, 1984 † - (YOLDIIDAE) (FOSSIL)
- rostriformis bugensis, Dreissena rostriformis bugensis (T.W. Therriault & al., 2004) - (DREISSENIDAE)
- rostriformis compressa, Dreissena rostriformis compressa B.M. Logvinenko & Y.I. Starobogatov, 1966 - syn of: Dreissena rostriformis (G.P. Deshayes, 1838) - (DREISSENIDAE)
- rostriformis distincta, Dreissensia rostriformis distincta N.I. Andrusov, 1897 - syn of: Dreissena rostriformis (G.P. Deshayes, 1838) - (DREISSENIDAE)
- rostriformis pontocaspica, Dreissena rostriformis pontocaspica (N.I. Andrusov, 1897) - (DREISSENIDAE)
- Rostrilucina, Genus Rostrilucina R. von Cosel & P. Bouchet, 2008 (LUCINIDAE)
- Rostrimacoma, Subgenus Macoma (Rostrimacoma) Salisbury, 1934 (TELLINIDAE)
- Rostrisepta, syn of: Genus Propilidium E. Forbes & S.C.T. Hanley, 1849 (LEPETIDAE)
- Rostrocardia, Genus Rostrocardia Freneix, 1972 † (DICEROCARDIIDAE) (FOSSIL)
- Rostrocerithium, Genus Rostrocerithium Cossmann, 1906 † (PROCERITHIIDAE) (FOSSIL)
- Rostroconus, Genus Rostroconus Jiang Zhiwen, 1980 † (HELCIONELLOIDEA (UNASSIGNED)) (FOSSIL)
- Rostrocorbula, Genus Rostrocorbula Harper et al., 2002 † (CORBULIDAE) (FOSSIL)
- Rostroonchidiopsis, Subgenus Onchidiopsis (Rostroonchidiopsis) A.N. Golikov & V.V. Gulbin, 1990 (VELUTINIDAE)
- Rostroperna, Genus Rostroperna Cox, 1964 † (MALLEIDAE) (FOSSIL)
- rostrotruncata, Nuculana rostrotruncata Gardner, 1916 † - syn of: Nuculana rostratruncata Gardner, 1916 † - (NUCULANIDAE) (FOSSIL)
- rostrum, Calliotropis rostrum C. Vilvens, 2007 - (CALLIOTROPIDAE)
- rostrum, Unio rostrum I. Lea, 1862 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- rostrumanatis, Solen rostrumanatis R.W. Dunker, 1862 - syn of: Solen gaudichaudi J.C. Chenu, 1843 - (SOLENIDAE)
- Rostrunio, Genus Rostrunio Van Damme & Bogan, 2015 † (UNIONIDAE) (FOSSIL)
- rosulenta, Centrocardita rosulenta (R. Tate, 1887) - (CARDITIDAE)
- rosulenta, Minolops rosulenta (R.B. Watson, 1883) - (SOLARIELLIDAE)
- rosulentum, Solarium rosulentum R.B. Watson, 1883 - syn of: Minolops rosulenta (R.B. Watson, 1883) - (ARCHITECTONICIDAE)
- rosum, Oenopota rosum S.L. Lovén, 1846 - syn of: Propebela harpularia (J.P.Y. Couthouy, 1838) - (MANGELIIDAE)
- roswellensis, Pyrgulopsis roswellensis D.W. Taylor, 1987 - (HYDROBIIDAE)
- roswellensis, Unio roswellensis I. Lea, 1858 - syn of: Elliptio pullata (I. Lea, 1856) - (UNIONIDAE)
aaa
abx
ack
acy
adn
aer
afs
ajd
alc
alj
alu
amc
ams
and
anh
anp
anu
apl
arb
ard
arh
ars
asr
atl
atu
aus
aut
bab
baj
bao
bas
baw
bem
bes
bid
bim
bit
bli
bom
bos
bov
bre
bri
bry
bum
bys
caa
cak
cam
cao
cas
cau
cem
ces
che
chk
chy
cio
cle
cob
coh
com
con
coo
cos
cot
cre
cri
cru
cud
cuo
cuy
cym
daa
dam
dav
ded
dem
deo
det
dib
dih
dir
dit
dom
dos
duc
duq
eag
ecr
egg
elf
elp
enh
eov
erf
erz
eud
eus
exb
exl
exy
faa
fan
fat
fes
fim
fle
flu
fos
fre
fuf
fur
fut
gaa
gam
gav
geo
gie
gis
gle
glu
goo
gre
gru
gug
guz
haa
ham
has
heb
hem
hes
hif
his
hom
hou
hun
hye
iac
ilm
imt
ind
inf
ing
int
inu
irm
isp
jaa
jao
jaw
joi
juk
kaa
kao
kaz
kes
kio
koc
kot
kuk
laa
lad
laf
lan
las
lau
lec
leo
leq
lew
lim
lio
liu
loo
lub
lun
luv
maa
mad
mah
mam
mao
mas
mav
mee
mem
mes
mey
mid
min
mio
mit
moe
moo
mos
mum
mut
nab
nao
nav
nel
neq
nex
nih
niu
noe
nou
nue
oaf
obn
obu
oci
oke
olk
oos
orc
oro
osu
ove
paa
paf
pam
paq
pas
pau
pay
pem
pes
pfi
phl
pid
pio
ple
plo
pom
pos
pre
pro
pru
psi
pul
pum
pup
put
pys
qag
qub
rab
rah
ras
red
reh
reu
rhu
rin
roc
rot
rox
rue
ruh
ryd
saa
sai
san
sao
sav
sce
sci
scy
sem
sen
ses
shl
sih
sin
sio
smo
som
soy
sph
spj
sra
stg
sts
suc
sum
suv
szo
tab
tal
taq
tay
ten
teo
tes
tha
thl
tif
toc
tos
tre
trl
try
tuc
tus
uac
ume
uni
urd
vaa
vap
vas
vep
ves
vid
vip
vis
vob
vup
waa
wam
weg
who
wom
xac
yaa
yot
zaa
zem
zoo
|