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

Les mollusques : introduction a l'étude de leur, organisation, développement, classification, affinités et principaux types - Coupin, Henri Eugène Victor, 1868 - (George Carré, 1892)

Mollusques marins des Iles Açores - Drouët, Henri, 1829 -1900 (Baillière, 1858)

Les mollusques marins du Roussillon - Dautzenberg, Ph. (Philippe), 1849 -1935 (J.-B. Baillière, 1882)

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

Les mollusques : organisation, développement, classification, affinités et principaux types - Coupin, Henri, 1868 -1937 (G. Carré et C. Naud, 1892)

Mollusques tertiaires du Portugal : planches de céphalopodes, gastéropodes et pélécypodes laissées - Dollfus, Gustave Frédéric, 1850 - (Imprimerie de l'Academie royale des sciences, 1903)

Mollusques vivants et fossiles - Orbigny, Alcide Dessalines d', 1802 -1857 (Adolphe Delahays, 1855)

Mollusques vivants et fossiles : ou, description de toutes les espèces de coquilles et de mollusques ; classées suivant leur distribution géologique et géographique - Orbigny, Alcide Dessalines d', 1802 -1857 (Gide et Cie., éditeurs, 1845)

Moluscos - Gay, Claudio, 1800 -1873 (1854)

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

Moluscos marinos de España, Portugal y las Baleares - Hidalgo, J. G, (Joaquín González) (Impr. de M. Ginesta, 1870)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1876)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1878)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1879)

A monograph of the Capitonidae or Scansorial Barbets - Marshall, G. F. L. (George Frederick Leycester), 1843 -1934 ([s.n.], 1870)

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, 1848)

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, 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 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, 1872)

A monograph of the freshwater univalve mollusca of the United States, including notices of species in other parts of North America - Haldeman, Samuel Stehman, 1812 -1880 (1842)

[Monograph of the genera and species of Pneumonopoma : a manuscript English translation by the author of his "Monographia Pneumonopomorum viventium, ...." - Gray, John Edward 1800 -1875 (1875)

Monograph of the Genus Partula : Monograph of the Genus Achatina : Monograph of the Genus Achatinella ([s.n.], 1849)

A monograph of the Limniades and other freshwater univalve shells of North America - Haldeman, Samuel Stehman, 1812 -1880 (J. Dobson, 1840)

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, 1848)

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, 1857)

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

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1896)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1905)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1907)

Monograph on the British fossil Echinodermata from the cretaceous formations - Wright, Thomas, 1809 -1884 (Printed for the Palaeontographical society, 1908)

Monographia auriculaceorum viventium. Sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum, nec non fossilium enumeratione - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus Theodore Fischer, 1856)

Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum / auctore Ludovico Pfeiffer - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (1848)

Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium huius familiae generum et specierum hodie cognitarum - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Brockhaus, 1848)

Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium huius familiae generum et specierum hodie cognitarum - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Brockhaus, 1859)

Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum / auctore Ludovico Pfeiffer - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (1853)