Lehrbuch der Naturgeschichte - Perleb, Karl Julius, 1794 -1845 (Friedrich Wagner, 1831)

Lehrbuch der vergleichenden Anatomie der Wirbellosen Thiere - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Veit, 1848)

Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Thiere - Korschelt, E. (Eugen), 1858 -1946 (G. Fischer, 1892)

Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Tiere : Specieller Thiel - Korschelt, E. (Eugen), 1858 -1946 (G. Fischer, 1890)

Die Leitfossilien : ein Handbuch für den Unterricht und für das Bestimmen von Versteinerungen - Koken, Ernst (Ernst Friedrich Rudolf Karl), 1860 -1912 (Chr. Herm. Tauchnitz, 1896)

Die Leitfossilien, ein Handbuch für den Unterricht und für das Bestimmen von Versteinerungen - Koken, Ernst (Ernst Friedrich Rudolf Karl), 1860 -1912 (H. Tauchnitz, 1896)

Lethaea geognostica oder Abbildungen und Beschreibungen der für die Gebirgs-Formationen bezeichnendsten Versteinerungen - Bronn, H. G. (Heinrich Georg), 1800 -1862 (1838)

Lethaea rossica, ou, Paléontologie de la Russie - Eichwald, Carl Eduard von, 1795 -1876 (E. Schweizerbart, 1852)

Lichenaea Africana - Stizenberger, Ernst, 1827 -1895 (In Commission bei A. & J. Köppel, 1890)

List of fossils, types and figured specimens, used in the palaeontological work of R.P. Whitfield, showing where they are probably to be found at the present time - New York Academy of Sciences. (New Era Print. Co, 1899)

List of marine Mollusca comprising the Quaternary fossils and recent forms from American localities between Cape Hatteras and Cape Roque, including the Bermudas - Dall, William Healey, 1845 -1927 (Govt. Print. Off, 1885)

List of mollusca and other forms of marine life collected in the years 1889-1890, in Japan - Stearns, F. (1891)

List of Mollusca and shells in the collection of the British Museum, collected and described by Eydoux and Souleyet - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1855)

List of the shells of South America in the collection of the British Museum - Orbigny, Alcide Dessalines d', 1802 -1857 (Printed by order of the trustees, 1854)

Livres de malacologie et de conchyliologie formant partie de la bibliothèque de Mr. J.G. Hidalgo : 1 de juillet de 1888 - Hidalgo, J. G, (Joaquín González) (Edouard Cuesta, 1888)

The London, Edinburgh and Dublin philosophical magazine and journal of science (Taylor & Francis, 1841)

Madagascar: an environmental profile (1987)

Madagascar: profil de l'environnement (1990)

Madras Journal of Literature and Science - Madras Literary Society. (Madras Literary Society, 1878)

Magasin de zoologie, d'anatomie comparée et de palaeontologie (Arthus Bertrand, 1839)

Magasin de zoologie, d'anatomie comparée et de palaeontologie (Arthus Bertrand, 1844)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1829)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1830)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1837)

Malacologia - Institute of Malacology. (Institute of Malacology], 1964)

Malacologia - Institute of Malacology. (Institute of Malacology], 1967)

Malacologia - Institute of Malacology. (Institute of Malacology], 1966)

Malacologia - Institute of Malacology. (Institute of Malacology], 1969)

Malacologia - Institute of Malacology. (Institute of Malacology], 1973)

Malacologia - Institute of Malacology. (Institute of Malacology], 1975)

Malacologia - Institute of Malacology. (Institute of Malacology], 1978)

Malacologia - Institute of Malacology. (Institute of Malacology], 1979)

Malacologia - Institute of Malacology. (Institute of Malacology], 1981)

Malacologia - Institute of Malacology. (Institute of Malacology], 1982)

Malacologia - Institute of Malacology. (Institute of Malacology], 1986)

Malacologia - Institute of Malacology. (Institute of Malacology], 2005)

Malacologia - Institute of Malacology. (Institute of Malacology], 2011)

Malacologia del Mar Rosso : ricerche zoologiche e paleontologiche - Issel, Arturo, 1842 -1922 (Biblioteca malacologia, 1869)

Malacological notes, II - Haas, Fritz, 1886 -1969 (Field Museum of Natural History, 1941)

Malacozoaires, ou, Animaux mollusques - Blainville, H.-M. Ducrotay de (Henri-Marie Ducrotay), 1777 -1850 (Chez F.-G. Levrault, 1828)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1857)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1858)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1864)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1865)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1867)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1868)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1869)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1870)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1871)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1872)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1875)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1877)

Malakozoologische Blätter - Menke, Karl Theodor, 1791 -1861 (T. Fischer, 1879)

Manual de geología : extractado de la lethaea geognóstica de Bronn, con los animales y vegetales perdidos, ó que ya no existen, mas característicos de cada roca, y con algunas aplicaciones a los criaderos de esta República, para uso del Colegio Nacional de Mineria - Bronn, H. G. (Heinrich Georg), 1800 -1862 (Impreso por I. Cumplido, 1841)

A manual of conchology, according to the system laid down by Lamarck, with the late improvements by De Blainville exemplified and arranged for the use of students - Wyatt, Thomas, A. M. (Harper & brothers, 1838)

Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1880)

Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1879)

Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1881)