The Quarterly journal of the Geological Society of London - Geological Society of America. (1923)

Rad - Jugoslavenska akademija znanosti i umjetnosti. Razred za prirodne nauke. (Jugoslavenska akademija znanosti i umjetnosti, 1873)

Die Radiolarien (Rhizopoda radiaria) : eine Monographie - Haeckel, Ernst, 1834 -1919 (G. Reimer, 1887)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1829)

Révision des échinides fossiles de l'Égypte - Fourtau, R. (Typ. A. Holzhausen], 1899)

Recherches sur les pédicellaires et les ambulacres des astéries et des oursins - Perrier, Edmond, 1844 -1921 (Victor Masson et Fills, 1869)

Recherches zoologiques et anatomiques sur les mollusques opistobranches du golfe de Marseille ... - Vayssière, A. (Albert Jean Baptiste Marie), 1854 -1942 (Typ. J. Cayer, 1885)

Record of the Geological Survey of Victoria - Geological Survey of Victoria. (1916)

The Record of zoological literature (J. van Voorst, 1864)

Records of the Auckland Institute and Museum - Auckland Institute; Museum. (Auckland Institute and Museum, 1949)

Records of the geological survey of India (1872)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1907)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1942)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1943)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1977)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1918)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 2002)

Records of the Western Australian Museum and Art Gallery - Western Australian Museum (The Museum, 1914)

Records of the Western Australian Museum and Art Gallery - Western Australian Museum (The Museum, 1910)

Le règne animal distribué d'après son organisation : pour servir de base a l'histoire naturelle des animaux et d'introduction a l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1817)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Louis Hauman et Comp, 1836)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Audouin, Jean Victor, 1797 -1841 (Fortin, Masson et cie, 1836)

Relazione di un viaggio nelle calabrie per ricerche zoologiche fatto nella state del 1876 - Costa, Achille, 1823 -1898 (Accademia dell scienze fisiche e matematiche, 1881)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1893)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1892)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1910)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1911)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1912)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1913)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1915)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1916)

Rendiconti delle Tornate dell'Accademia Pontaniana - Accademia Pontaniana. (1853)

Repertorio Italiano per la Storia Naturale - Bianconi, Gio. Giuseppe (Giovanni Giuseppe), 1809 -1878 (1854)

Report of the ... Australasian Association for the Advancement of Science - Australasian Association for the Advancement of Science. (The Association, 1902)

Report of the (Free) Public Library, Museum (Liverpool) - Liverpool (England). Free Public Library. Museum (1854)

Report of the government of Madras on the Indian pearl fisheries in the gulf of Mannar - Hornell, James, 1865 -1949 (Printed by the superintendent, Government Press, 1905)

Report on the Echini / by Alexander Agassiz. 24, pt.1, Report on the Echini - Agassiz, Alexander, 1835 -1910 (Museum of Comparative Zoology at Harvard College, 1883)

Report on the Florida reefs - Agassiz, Louis, 1807 -1873 (Printed for the Museum, 1880)

Report on the geology and agriculture of the State of Mississippi - Mississippi. State Geologist. (E. Barksdale, State Printer, 1860)

Report on the geology, mineralogy, botany, and zoology of Massachusetts - Massachusetts. Geological Survey. (J.S. and C. Adams, 1835)

Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... - United States National Museum (G.P.O, 1918)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1881)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1884)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1887)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1895)

Report on the sea-lilies, starfishes, brittle-stars and sea-urchins obtained by the F.I.S. "Endeavour" on the coasts of Queensland, New South Wales, Tasmania, Victoria, South Australia, and Western Australia - Clark, Hubert Lyman, 1870 -1947 (Published by Direction of the Minister for Trade and Customs, 1916)

Report on the zoological collections made in the Indo-Pacific Ocean during the voyage of H.M.S. 'Alert' 1881-2 - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1884)

Report to the government of Ceylon on the pearl oyster fisheries of the gulf of Manaar - Royal Society (Great Britain) (1903)

Report to the government of Ceylon on the pearl oyster fisheries of the gulf of Manaar - Royal Society (Great Britain) (1906)

Report upon the crinoidea collected during the voyage of H.M.S. Challenger during the years 1873-76. Part I, General morphology, with descriptons of the stalked crinoids - Carpenter, P. Herbert (Philip Herbert), 1852 -1891 (s.n, 1884)

Report / Warwickshire Natural History & Archaeological Society - Warwickshire Natural History; Archaeological Society. (1873)

Reports of the first, second, and third meetings of the Association of American geologists and naturalists, at Philadelphia, in 1840 and 1841, and at Boston in 1842. Embracing its proceedings and transactions - Association of American Geologists; Naturalists. (Gould, Kendall & Lincoln, 1843)

Reports of the Great Barrier Reef Committee - Great Barrier Reef Committee (Govt. Printer, 1942)

Reports on the crinoids, ophiurans, Brachyura, Tanidacea and Isopoda, amphipods, & Echinoidea of the Barbados-Antigua expedition of 1918 - Barbados-Antigua expedition, 1918. (The University, 1921)

Reports on zoology for 1843, 1844 - Ray Society. (Printed for the Ray society, 1847)

Resultate der Wissenschaftlichen Erforschung des Balatonsees - Hungary. Földmm̋uvelésügyi Minisztérium. (E. Hölzel, 1897)

Return / British Museum - British Museum (Natural History) (British Museum, 1856)

Return / British Museum - British Museum (Natural History) (British Museum, 1890)

Return / British Museum - British Museum (Natural History) (British Museum, 1891)

Return / British Museum - British Museum (Natural History) (British Museum, 1901)

Return / British Museum - British Museum (Natural History) (British Museum, 1911)

Return / British Museum - British Museum (Natural History) (British Museum, 1916)

Révision des échinides fossiles du Bordelais. [I: Echinides de l'éocene.] - Lambert, Jules Matthieu. (1912)

Revision of the Echini / by Alexander Agassiz - Agassiz, Alexander, 1835 -1910 (University Press, 1872)

Revision of the Echini / by Alexander Agassiz - Agassiz, Alexander, 1835 -1910 (University Press, 1873)

Revision of the Echini / by Alexander Agassiz - Agassiz, Alexander, 1835 -1910 (University Press, 1874)

Revista de los Progresos de las Ciencias Exactas Fisicas y Naturales - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Real Academia de Ciencias Exactas, Físicas y Naturales, 1851)

Revista de los Progresos de las Ciencias Exactas Fisicas y Naturales - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Real Academia de Ciencias Exactas, Físicas y Naturales, 1854)

Revista del Museo de La Plata - Universidad Nacional de La Plata. (Talleres del Museo de La Plata, 1898)