A manual of the Mollusca; being a treatise on recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (C. Lockwood, 1880)

A manual of the mollusca; or, A rudimentary treatise of recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (J. Weale, 1851)

A manual of the Mollusca : or, A rudimentary treatise of recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (J. Weale, 1851)

A manual of the mollusca; or, Rudimentary treatise of recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (J. Weale, 1851)

A manual of the Mollusca, or, A rudimentary treatise of recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (John Weale, 1851)

A manual of the Mollusca; or, A rudimentary treatise of recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (J. Weale, 1851)

A manual of the Mollusca : a treatise on recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (Virtue & Co, 1868)

A manual of the Mollusca: a treatise on recent and fossil shells - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (Virtue Brothers & Co, 1866)

Manual of the New Zealand Mollusca. A systematic and descriptive catalogue of the marine and land shells, and of the soft mollusks and Polyzoa of New Zealand and the adjacent islands - Hutton, Frederick Wollaston, 1836 -1905 (Printed at the office of J. Hughes, 1880)

Manual of the New Zealand mollusca - Suter, Henry 1841 -1918 (J. Mackay, govt. printer, 1913)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1912)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1902)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1909)

A manual of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillan & co., ltd, 1899)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood, 1887)

A manual of zoology for the use of students - Nicholson, Henry Alleyne, 1844 -1899 (R. Hardwicke, 1870)

Manuel de conchyliologie et de paleontologie conchyliologique : ou, Histoire naturelle des mollusques vivants et fossiles - Fischer, Paul, 1835 -1893 (F. Savy, 1887)

Manuel de conchyliologie et paléontologie conchlyliologique - Chenu, Jean-Charles, 1808 -1879 (V. Masson, 1859)

Manuel de conchyliologie et paléontologie conchlyliologique - Chenu, Jean-Charles, 1808 -1879 (Victor Masson, 1859)

Manuel de conchyliologie, ou, Histoire naturelle des mollusques vivants et fossiles - Woodward, S. P. (Samuel Peckworth), 1821 -1865 (Savy, 1870)

Manuel de malacologie et de conchyliologie - Turpin, P. J. F. (Pierre Jean François), 1775 -1840 (F. G. Levrault, 1825)

Manuel de paléontologie - Hoernes, Rudolf, 1850 -1912 (Savy, 1886)

Marine and estuarine environments, organisms, and geology of the Cape Cod region; an indexed bibliography, 1665-1965 - Marine Biological Laboratory (Woods Hole, Mass.). Systematics-Ecology Program. (Systematics Ecology Program, Marine Biological Laboratory, 1966)

Marine mollusca of Madras and the immediate neighbourhood; notes on a collection of marine shells from Lively Island, Falklands; and other papers - Melvill, James Cosmo 1845 -1929 (J.E. Gornish, 1898)

Marine shells of South Africa: a catalogue of all the known species - Sowerby, G. B. (George Brettingham), 1843 -1921 (Sowerby, 1892)

Marine shells of the western coast of Flordia - Perry, Louise Merrimon, 1878 - (Paleontological Research Institution, 1955)

Martini and Chemnitz Conchylien-Cabinet second edition : index - Dall, William Healey, 1845 -1927 (Smithsonian Institution, 1907)

Martini Lister Historiæ sive synopsis methodicæ conchyliorum et tabularum anatomicarum - Lister, Martin, 1638? -1712 (E typographeo Clarendoniano, 1770)

Maryland geological survey - Maryland Geological Survey. (The Johns Hopkins Press, 1904)

Maryland geological survey - Maryland Geological Survey. (The Johns Hopkins Press, 1906)

Maryland geological survey - Maryland Geological Survey. (The Johns Hopkins Press, 1916)

Materials for the palaeontology of New Zealand - Thomson, James Allan, 1881 -1928 (J. Mackay, 1913)

Matériaux pour la paléontologie suisse, ou, Recueil de monographies sur les fossiles du Jura et des Alpes - Pictet, François Jules, 1809 -1872 (H. Georg, 1861)

Matériaux pour la paléontologie suisse, ou, Recueil de monographies sur les fossiles du Jura et des Alpes - Pictet, François Jules, 1809 -1872 (H. Georg, 1872)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1909)

Mémoires de la Société impériale des sciences naturelles de Cherbourg - Société Imperiale des Sciences Naturelles de Cherbourg. (J.B. Baillière et fils, 1857)

Mémoires de la Société linnéenne du Calvados - Société Linneenne du Calvados. (Chez Chalopin Fils, 1825)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1888)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1890)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1891)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1909)

The Melanesians : people of the South Pacific - Lewis, A. B. (Albert Buell), 1867 -1940 (Chicago Natural History Museum, 1951)

Mélanges biologiques tirés du Bulletin de l'Académie impériale des sciences de St. Pétersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Eggers et comp, 1873)

Mélanges biologiques tirés du Bulletin de l'Académie impériale des sciences de St. Pétersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Eggers et comp, 1891)