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

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

Moluscos del viaje al Pacífico : verificado de 1862 á 1865 por una comisión de naturalistas enviada por el Gobierno Español - Hidalgo, J. G, (Joaquín González) (Impr. de Miguel Ginesta, 1869)

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

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1917)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1922)

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 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 Cretaceous Lamellibranchia of England - Woods, Henry, 1868 -1952 (Printed for The Palaeontographical Society, 1913)

A monograph of the Cretaceous Lamellibranchia of England - Woods, Henry, 1868 -1952 (Printed for The Palaeontographical Society, 1908)

A monograph of the Eocene bivalves of England - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1877)

A monograph of the genus Dryopteris - Christensen, Carl, 1872 -1942 (B. Lunos bogtr, 1912)

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, 1873)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1877)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1899)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1908)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1909)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1912)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1915)

Monographia pneumonopomorum viventium .... Supplementum tertium monographiae auriculaceorum, parte secunda auctum - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (sumptibus T. Fischer, 1876)

Monographie der Molluskengattung Dosinia, Scopoli (Artemis, Poli.) - Römer, Eduard, 1819 -1874 (T. Fischer, 1862)

Monographie der Molluskengattung Venus, Linné - Römer, Eduard, 1819 -1874 (T. Fischer, 1869)

Monographie der Molluskengattung Venus, Linné - Römer, Eduard, 1819 -1874 (T. Fischer, 1872)

Monographie des genres Galatea et Fischeria - Bernardi, A.-C., -1863 (L. Tinterlin, 1860)