A new Amazonian species of Adenomera (Anura, Leptodactylidae) from the Brazilian state of Pará : a tody-tyrant voice in a frog - Haddad, Célio F. B. (American Museum of Natural History, 2019)

A new amphibian cestode - Dickey, Lloyd Blackwell. (1917)

New biology - Smallwood, W. M. (William Martin), 1873 -1949 (Allyn and Bacon, 1934)

New civic biology : presented in problems - Hunter, George W. (George William), 1873 -1948 (American book Co, 1926)

A new crown-group frog (Amphibia, Anura) from the early Cretaceous of northeastern Inner Mongolia, China - Gao, Keqin, 1955 - (American Museum of Natural History, 2017)

A new cryptic species of microhylid frog (genus Cophixalus) from Papua New Guinea, with notes on related forms - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1979)

A new dichromatic species of Myotis (Chiroptera: Vespertilionidae) from the Nimba Mountains, Guinea - Simmons, Nancy B. (American Museum of Natural History, 2021)

A new frog from an Eocene oil-well core in Nevada - Hecht, Max K., 1925 - (American Museum of Natural History, 1960)

A new frog of the genus Ctenophryne (Microhylidae) from the Pacific lowlands of northwestern South America - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1989)

A new generic and family position for Bufo Borbonica - Davis, D. Dwight (Delbert Dwight), (1935)

A new genus and species of leptodactylid frog from Australia - Moore, John Alexander, 1915 -2002 (American Museum of Natural History, 1958)

A new genus and species of microhylid frog from the Cerro de la Neblina region of Venezuela and a discussion of relationships among New World microhylid genera - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1986)

A new genus for Elosia duidensis Rivero (Amphibia, Leptodactylidae) from southern Venezuela - Lynch, John D. (American Museum of National History, 1979)

A new genus of genyophrynine microhylid frogs from New Guinea - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1995)

A new genus of microteiid lizard from the Caparaó Mountains, southeastern Brazil, with a discussion of relationships among Gymnophthalminae (Squamata) - Pavan, Dante (American Museum of Natural History, 2009)

A new herpetofauna from Cerro Yaví, Venezuela : first results of the Robert G. Goelet American Museum-Terramar Expedition to the northwestern tepuis - Myers, Charles W. (American Museum of Natural History, 1996)

A new leptodactylid frog of the genus Notaden from northern Australia - Hosmer, William, herpetologist. (American Museum of Natural History, 1962)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2010)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2015)

The New phytologist - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Academic Press, 1920)

A new poison frog (Dendrobates) from Andean Colombia : with notes on a lowland relative - Myers, Charles W. (American Museum of Natural History, 1987)

A new poison frog from Amazonian Brazil : with further revision of the quinquevittatus group of Dendrobates - Myers, Charles W. (American Museum of Natural History, 1990)

A new species of Elosia (Amphibia, Salientia) from Mt. Duida, Venezuela - Tate, G. H. H. (George Henry Hamilton), 1894 -1953 (American Museum of Natural History, 1968)

A new species of Hyla from Cerro Colorado, and other tree frog records and geographical notes from western Panama - Myers, Charles W. (American Museum of Natural History, 1982)

A new species of leopard frog (Rana pipiens complex) from the Plains of the central United States - Mecham, John S. (The Museum, Texas Tech University, 1973)

A new species of Marmosops (Marsupialia, Didelphidae) from the Pakaraima Highlands of Guyana, with remarks on the origin of the endemic Pantepui mammal fauna - Lim, Burton K. (American Museum of Natural History, 2013)

A new species of marsupial frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru - Lehr, Edgar (Natural History Museum, University of Kansas, 2001)

A new species of microhylid frog, genus Oreophryne, from Papua New Guinea - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 2003)

New species of microhylid frogs from the Owen Stanley Mountains of Papua New Guinea and resurrection of the genus Aphantophryne - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1989)

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

New species of stream-breeding hylid frogs from the northern versant of the highlands of Oaxaca, Mexico - Campbell, Jonathan A. (Natural History Museum, University of Kansas, 2000)

A new species of toad (Bufo) indigenous to southern Ceylon - Bogert, Charles M. (Charles Mitchill), 1908 -1992 (American Museum of Natural History, 1966)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1925)

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Nomenclator reptilium et amphibiorum musei zoologici Berolinensis : Namenverzeichnis der in der zoologischen Sammlung der Koeniglichen Universität zu Berlin aufgestellten Arten von Reptilien und Amphibien nach ihren Ordnungen, Familien und Gattungen - Lichtenstein, Hinrich, 1780 -1857 (1856)

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, adjectis auctoribus, libris, in quibus reperiuntur, anno editionis, etymologia et familiis, ad quas pertinent, in singulis classibus - Agassiz, Louis, 1807 -1873 (Jent et Gassmann, 1842)

Nomenclatoris zoologici index universalis : continens nomina systematica classium, ordinum, familiarum et generum animalium omnium ... homonymiis plantarum - Agassiz, Louis, 1807 -1873 (Sumptibus Jent et Gassman, 1848)

Nomenclature of birds - Gray, George Robert, 1808 -1872 (1851)

Nomina conservanda - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft naturforschender Freunde zu Berlin, 1915)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 1922)

North American anura ; life-histories of the Anura of Ithaca, New York - Wright, Albert Hazen, 1879 -1970 (Carnegie institution of Washington, 1914)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1893)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1904)

North American geology and paæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist Book Concern], 1889)

North American geology and palaeontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([s.n.], 1889)

North American geology and palæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 (Western Methodist Book Concern, 1889)

North American geology and palæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist book concern], 1889)

The North Queensland Naturalist : the journal and magazine of the North Queensland Naturalist Club - North Queensland Naturalists' Club. (The Club, 1971)

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Northern leopard frog reintroduction : Raven River - year 2 (2000) - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Resource Status and Assessment Branch, 2001)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2005)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2007)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2008)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2010)

Notes on the natural history of portions of Montana and Dakota; being the substance of a report to the Secretary of War on the collections made by the North Pacific Railroad Expedition of 1873, Gen. D.S. Stanley, commander - Allen, J. A. (Joel Asaph), 1838 -1921 (1874)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2002)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2010)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2011)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2014)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1940)