Protozoa - Schwager, Conrad. (C.F. Winter, 1887)

Publicaciones del Departamento de Zoología - Universidad de Barcelona. Departamento de Zoología. (Ediciones de la Universidad de Barcelona, 1985)

Quadro elementar da historia natural dos animaes - Cuvier, Georges, baron, 1769 -1832 (impresso por H. Bryer, 1815)

The quantitative method in biology - MacLeod, Julius, 1857 -1919 (University Press, 1919)

The quantitative method in biology - MacLeod, Julius, 1857 -1919 (University press, 1919)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1853)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1855)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1856)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1858)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1861)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1862)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1865)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1866)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1874)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1891)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1908)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1909)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1846)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1849)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1851)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1868)

The Queensland Naturalist - Queensland Naturalists' Club. (Queensland Naturalists' Club], 1917)

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

Rambles and reveries of a naturalist - Spiers, William. (Kelly, 1890)

Rambles in search of flowerless plants - Plues, Margaret (Journal of horticulture & cottage gardener office; [etc., etc.], 1864)

Rare and remarkable animals of Scotland, represented from living subjects: with practical observations on their nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1847)

Rare and remarkable animals of Scotland, represented from living subjects: with practical observations on their nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1848)

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, 1830)

Recherches anatomiques, physiologiques et zoologiques sur les polypes - Milne-Edwards, H. (Henri), 1800 -1885 (Crochard et Cie, 1838)

Recherches sur l'embryologie des Bryozoaires - Barrois, Jules, 1852 -1943 (Six-Horemans, 1877)

Recherches sur la faune littorale de Belgique : crustacés - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (M. Hayez, Imprimeur de l'Academie royale de Belgique, 1861)

Recherches sur la faune littorale de Belgique : polypes - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (M. Hayez, Imprimeur de l'academie royale de Belgique, 1866)

Recherches sur la faune littorale de Belgique. Turbellariés - Beneden, P.-J. van (Pierre Joseph), 1809 -1894 (M. Hayez, imprimeur de l'Académie, 1860)