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 (sumtibus 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)

Nomina systematica generum Arachnidarum, tam viventium quam fossilium : secundum ordinem alphabeticum disposita, adjectis auctoribus, libris in quibus reperiuntur, anno editionis, etymologia et familiis ad quas pertinent - Agassiz, Louis, 1807 -1873 (s.n, 1846)

Nomina systematica generum Arachnidarum, tam viventium quam fossilium : secundum ordinem alphabeticum disposita, adjectis auctoribus, libris in quibus reperiuntur, anno editionis, etymologia et familiis ad quas pertinent - Agassiz, Louis, 1807 -1873 (s.n, 1842)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 1910)

North American index fossils, invertebrates - Grabau, Amadeus W. (Amadeus William), 1870 -1946 (A.G. Seiler, 1909)

North American jumping spiders of the subfamily Marpissinae (Araneae, Salticidae) - Barnes, Robert D. (American Museum of Natural History, 1958)

North American spiders of the genus Bathyphantes (Araneae, Linyphiidae) - Ivie, Wilton 1907 -1969 (American Museum of Natural History, 1969)

North Atlantic biota and their history; a symposium held at the University of Iceland, Reykjavík, July 1962, under the auspices of the University of Iceland and the Museum of Natural History. Editors: Askell Löve and Doris Löve. Sponsored by the NATO Advanced Study Institutes Program - Áskell Löve, 1916 -1994 (Pergamon Press, 1963)

The North Dakota Grasshopper Integrated Pest Management Demonstration Project - United States. Animal; Plant Health Inspection Service. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, 2000)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 1993)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2003)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2009)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2019)

Notes and Queries : a Medium of Intercommunication for Literary Men, etc (1860)

Notes on Chilean anapids and their webs - Platnick, Norman I. (American Museum of Natural History, 2004)

Notizen aus dem Gebiete der Natur- und Heilkunde (G.H.S. pr. Landes-Industrie-Comptoir, 1829)

Notizen aus dem Gebiete der Natur- und Heilkunde (G.H.S. pr. Landes-Industrie-Comptoir, 1835)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1908)

Nova acta physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (1820)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1773)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1856)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1911)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1917)

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

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1903)

Nuovo catalogo delle Conchiglie terrestri e fluviatili della Sicilia o continunzione alla Illustrazione sistèmatica, &c - Benoit, Luigi, 1804 -1890 (1881)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2015)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1900)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1907)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1910)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1922)

Obseruationes circa viuentia, quæ in rebus non viuentibus reperiuntur : Cum micrographia curiosa siue Rerum minutissimarum obseruationibus, quæ ope microscopij recognitæ ad viuum exprimuntur : his accesserunt aliquot animalium testaceorum icones non antea in lucem editæ : omnia curiosorum naturæ exploratorum vtilitati & iucunditati expressa & oblata - Buonanni, Filippo, 1638 -1725 (Typis Dominici Antonij Herculis, 1691)

Occasional paper - Entomological Society of British Columbia (The Society, 1994)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1963)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2001)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Occasional papers of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The University, 1981)

Occurrence, chemical characteristics, and paleontology of the fossil resins from New Jersey - Grimaldi, David A. (American Museum of Natural History, 1989)

Official lists and indexes of names and works in zoology. Supplement 1986-2000 - International Commission on Zoological Nomenclature (International Trust for Zoological Nomenclature, c/o Natural History Museum, 2001)