Memoirs of the National Museum of Victoria - National Museum of Victoria (National Museum of Victoria, 1951)

Memoirs of the National Museum of Victoria - National Museum of Victoria (National Museum of Victoria, 1956)

Memoirs of the San Diego Society of Natural History - San Diego Society of Natural History. (The Society, 1931)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1890)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1909)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1910)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1913)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1903)

Memorias de la Real Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (s.n.], 1905)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1903)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1904)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1886)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1890)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1879)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1873)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1825)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Verlag des Bibliographischen Instituts, 1890)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1834)

Minutes - Conchological Club of Southern California. (The Club, 1941)

Minutes - Conchological Club of Southern California. (The Club, 1944)

Minutes - Conchological Club of Southern California. (The Club, 1946)

Minutes - Conchological Club of Southern California. (The Club, 1950)

Miocene - Maryland Geological Survey. (John Hopkins Press, 1904)

Miocene - Maryland Geological Survey. (Johns Hopkins Press, 1904)

Mission scientifique du cap Horn, 1882-1883 - Mission scientifique du Cape Horn, 1882-1883. (Gauthier-Villars, 1889)

The Mollusca and the Brachiopoda - Dall, William Healey, 1845 -1927 (Harvard College, Museum of Comparative Zoology], 1908)

Mollusca für 1901-1904 : geographische Verbreitung, Systematik und Biologie - Kobelt, Wilhelm, 1840 -1916 (Nicolai?, 1905)

The Mollusca of the Firth of Clyde, being a catalogue of recent marine species found in that estuary - Brown, Alfred (Hugh Hopkins, 1878)

Mollusca terrestria et fluviatilia, edit - Porro, Carlo, 1813 -1848 (excudebat Aloysius de Jacobo Pirola, 1846)

Molluscan biostratigraphy of the Miocene, middle Atlantic coastal plain of North America - Ward, Lauck W. (Virginia Museum of Natural History, 1992)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1899)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1900)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1901)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1904)

Molluscorum Britanniæ synopsis : A synopsis of the Mollusca of Great Britain - Gray, John Edward 1800 -1875 (J. van Voorst, 1852)

Molluscorum systema et catalogus. System und aufzählung sämmtlicher conchylien der sammlung vonFr. Paetel. Zur belebung des interesses für malakozoologie nach dessen manuscript hrsg. von dr. L. W. Schaufuss - Schaufuss, L. W. (Ludwig Wilhelm), 1833 -1890 (O. Weiske, 1869)

Molluscous animals, including shell fish : containing an exposition of their structure, systematical arrangement, physical distribution, and dietetical uses, with a reference to the extinct races - Fleming, John, 1785 -1857 (Black, 1837)

Molluscous animals, including shellfish ... Forming the article 'Mollusca' in the 7th ed. of the Encyclopædia britannica - Fleming, John, 1785 -1857 (A. and C. Black, 1837)

Mollusks of the tropical eastern Pacific : particularly from the southern half of the Panamic-Pacific faunal province (Panama to Peru) ; Panamic-Pacific Pelecypoda - Olsson, Axel A. (Axel Adolf), 1889 -1976 (Paleontological Research Institution, 1961)

Mollusques - Pelseneer, Paul, 1863 -1945 (Rueff, 1897)

Mollusques - Cuvier, Georges, baron, 1769 -1832 (Chez les frères Levrault, 1802)

Mollusques éocéniques de la Loire-inférieure - Cossmann, M. (Maurice), 1850 -1924 (Pequignot, 1895)

Les mollusques marins du Roussillon - Dautzenberg, Ph. (Philippe), 1849 -1935 (J.-B. Baillière, 1887)

Los moluscos de la República de Panamá - Zetek, James, 1886 - (Imp. nacional, 1918)

Moluscos de la Republica Oriental del Uruguay: catálogo de las especies que hasta hoy se han encontrado en el territorio de dicha república - Corsi, A. Formica. (Establecimiento Tipo-litográfico Oriental, 1900)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1881)

Monograph of the bombycine moths of North America, including their transformations and origin of the larval markings and armature - Packard, A. S. (Alpheus Spring), 1839 -1905 (Govt. Print. Off, 1914)

A monograph of the Crag mollusca; or, Descriptions of shells from the middle and upper Tertiaries of the east of England - Wood, Searles V. (Searles Valentine), 1798 -1880 (Palaeontographical Society, 1850)

A monograph of the Crag Mollusca : with descriptions of shells from the upper Tertiaries of the British Isles - Wood, Searles V. (Searles Valentine), 1798 -1880 (Printed for the Palæontographical society, 1848)

A monograph of the Crag Mollusca; with descriptions of shells from the upper Tertiaries of the British Isles - Wood, Searles V. (Searles Valentine), 1798 -1880 (Printed for the Palaeontographical Society, 1851)

A monograph of the Mollusca from the Great Oolite : chiefly from Minchinhampton and the coast of Yorkshire - Lycett, John, 1882 (Printed for the Palæontographical society, 1853)

A monograph of the Mollusca from the Great Oolite chiefly from Minchinhampton and the coast of Yorkshire - Lycett, John, 1882 (Printed for the Palæontographical society, 1850)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1850)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1853)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1857)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1873)

Il monte Mario ed i suoi fossili subapennini raccolti e descritti dallo scultore e paleontologo - Conti, Angelo. (Tipografia di Giovanni Cesaretti, 1864)

Museum Boltenianum, sive, Catalogus cimeliorum e tribus regnis naturae quae olim collegerat Joa. Fried. Bolten .... - Bolten, Joachim Friedrich, 1718 -1796 (Typis Johan. Christi. Trappii, 1798)

Museum Boltenianum, sive, Catalogus cimeliorum e tribus regnis naturae quae olim collegerat Joa. Fried. Bolten - British Museum (Natural History) (British Museum (Natural History)], 1906)

Museum Boltenianum : Verzeichnis der von dem gestorbenen J.F. Bolten...hinterlassenen vortrefflichen Sammlung Conchylien, Mineralien und Kunstsachen die am 26. April d.J., Morgens um 10 Uhr öffentlich verkauft werden sollen durch den Makler J. Noodt - Bolten, Joachim Friedrich, 1718 -1796 (Conrad Müller, 1819)

Museum Geversianum, sive, Index rerum naturalium : continens instructissimam copiam pretiosissimorum omnis generis ex tribus regnis naturae objectorum : quam dum in vivis erat magna diligentia multaque cura comparavit Abrahamus Gevers ... - F. C. M. (Friedrich Christian Meuschen), 1719 -1811 (Per P. et J. Holsteyn bibliopolas, 1787)

Museum Leskeanum : regnum animale quod ordine systematico - Leske, Nathanael Gottfried, 1751 -1786 (Sumptibus haeredum I.G. Mülleri, 1789)

La mythologie des plantes; ou, Les légendes du règne végétal - De Gubernatis, Angelo. (C. Reinwald, 1879)