Maryland naturalist - Natural History Society of Maryland (The Society, 1948)

Maryland naturalist - Natural History Society of Maryland (The Society, 1987)

Maryland naturalist - Natural History Society of Maryland (The Society, 1993)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1980)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1988)

Memoirs of the National Academy of Sciences - National Academy of Sciences (U.S.) (Government Printing Office, 1926)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1957)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1959)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1976)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1969)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1971)

Miscellanes zoologica - Coues, Elliott, 1842 -1899 (1857)

Mission du Service Geographique de l'Armée pour la mesure d'un arc de méridien équatorial en Amérique du Sud sous le contrôle scientifique de l'Académie des Sciences, 1899-1906 - France. (Gauthier-Villars, Imprimeur Libraire du Bureau des Longitudes, de l'Ecole Polytechnique, 1910)

Mission scientifique du cap Horn, 1882-1883 - Mission scientifique du Cape Horn, 1882-1883. (Gauthier-Villars, 1891)

Molecular diversity within Melanomys caliginosus (Rodentia: Oryzomyini) : evidence for multiple species - Bradley, Robert D. (Museum of Texas Tech University, 2008)

Molecular systematics of mouse opossums (Didelphidae, Marmosa) : assessing species limits using mitochondrial DNA sequences, with comments on phylogenetic relationships and biogeography - Jansa, Sharon A. (American Museum of Natural History, 2010)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1866)

Monografía de los mamíferos de Yucatán - Gaumer, George F, 1851 -1929 (Departamento de talleres gráficos de la Secretaría de fomento, 1917)

Monographs of North American Rodentia - Coues, Elliott, 1842 -1899 (Govt. print. off, 1877)

Monographs of North American rodentia - Coues, Elliott, 1842 -1899 (G.P.O, 1877)

The museum of natural history; being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (J. S. Virtue, 1877)

Museum specimen records contributing to the known distribution of mammals in Texas - Brashear, Wesley A. (Museum of Texas Tech University, 2011)

Name that animal; a guide to the identification of the common land and fresh-water animals of the United States, with special reference to the area east of the Rockies - Driver, Ernest Charles, 1899 - (1950)

National Museum, Victoria, Register Zoological Collection - Museums Victoria (National Museum of Victoria, 1933)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1895)

Natural history - Bernard, Henry Meyners, 1853 -1909 (D. Appleton and company, 1897)

Natural history - Lydekker, Richard, 1849 -1915 (Hutchinson, 1897)

Natural history of the Tres Marias Islands, Mexico - Nelson, Edward William, 1855 -1934 (Government Printing Office, 1899)

Natural science (Macmillan & Co, 1893)

Natural science : a monthly review of scientific progress (Macmillan and Company [etc.], 1893)

Naturalist's guide to the Americas - Ecological Society of America. Committee on the Preservation of Natural Conditions. (Williams & Wilkins, 1926)

Le Naturaliste : journal des échanges et des nouvelles - Deyrolle, Émile, 1838 -1917 (Bureaux à Paris, 1907)

Nature lovers library (University Society Inc, 1923)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1895)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1917)

Nelson, Edward William (with Edward Alphonso Goldman) California, Mexico, Texas, Yucatan, August 1896 - June 1902 - Nelson, Edward William, 1855 -1934 (1896)

Nelson, Edward William (with Edward Alphonso Goldman) Guatemala, Mexico, December 1893 - August 1896 - Nelson, Edward William, 1855 -1934 (1893)

A new genus for Aepeomys fuscatus Allen, 1912, and Oryzomys intectus Thomas, 1921 : enigmatic murid rodents from Andean cloud forests - Pacheco, Víctor (American Museum of Natural History, 2002)

A new genus for Hesperomys molitor Winge and Holochilus magnus Hershkovitz (Mammalia, Muridae) : with an analysis of its phylogenetic relationships - Voss, Robert S. (American Museum of Natural History, 1993)

New North American fleas - Traub, Robert, 1916 -1996 (1944)

A new rodent from the Galapagos Islands - Osgood, Wilfred Hudson, 1875 -1947 (1929)

A new species of Cryptotis (Insectivora, Soricidae) from northern Peru - Pacheco, Víctor (American Museum of Natural History, 1997)

A new species of Megacricetodon (Cricetidae, Rodentia, Mammalia) from the Middle Miocene of northern Junggar Basin, China - Wu, Wenyu. (American Museum of Natural History, 2008)

A new species of Oryzomys (Rodentia : Muridae) from an isolated pocket of Cerrado in Eastern Bolivia - Brooks, Daniel M. (Museum of Texas Tech University, 2004)

A new species of Oryzomys (Rodentia, Muridae) from eastern Bolivia - Emmons, Louise (American Museum of Natural History, 2005)

A new species of spiny pocket mouse (Heteromyidae, Heteromys) endemic to western Ecuador - Anderson, Robert P. (American Museum of Natural History, 2002)

A new species of the didelphid marsupial genus Monodelphis from eastern Bolivia - Solari, Sergio (American Museum of Natural History, 2012)

A new species of the ichthyomyine Daptomys from PeruМЃ - Musser, Guy G. (American Museum of Natural History, 1974)

A new species of the rodent genus Oecomys (Cricetidae, Sigmodontinae, Oryzomyini) from eastern Bolivia, with emended definitions of O. concolor (Wagner) and O. mamorae (Thomas) - Emmons, Louise (American Museum of Natural History, 2009)

A new species of Thomasomys (Rodentia, Muridae) from eastern Ecuador, with remarks on mammalian diversity and biogeography in the Cordillera Oriental - Voss, Robert S. (American Museum of Natural History, 2003)

Nine new South American rodents - Osgood, Wilfred Hudson, 1875 -1947 (1944)

Nomenclator zoologicus. An alphabetical list of all generic names that have been employed by naturalists for recent and fossil animals from the earliest times to the close of the year 1879 ... - Scudder, Samuel Hubbard, 1837 -1911 (Govt. Print. Off, 1882)

Nomenclator zoologicus continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, sub auspiciis et sumptibus C. R. Societatis zoologico-botanicae conscriptus a comite Augusto de Marschall - Marschall, August Friedrich, 1804 -1887 (typis C. Ueberreuter (M. Salzer), 1873)

The non-volant mammals of the Reserva Nacional Allpahuayo-Mishana, Loreto, Peru - Velazco, Paúl M. (Museum of Texas Tech University, 2012)