Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1881)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1898)

The new natural history - Lydekker, Richard, 1849 -1915 (Merrill, 1901)

New York Shell Club notes - New York Shell Club. (The Club, 1962)

New York Shell Club notes - New York Shell Club. (The Club, 1964)

New York Shell Club notes - New York Shell Club. (The Club, 1965)

New York Shell Club notes - New York Shell Club. (The Club, 1985)

New York Shell Club notes - New York Shell Club. (The Club, 1988)

New York Shell Club notes - New York Shell Club. (The Club, 1991)

New York Shell Club notes - New York Shell Club. (The Club, 1994)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1926)

Niederländisches Archiv für Zoologie (A.C. Kruseman; Leiden : E.J. Brill; Leipzig : C.F. Winter, 1881)

NOAA technical report NMFS SSRF - United States. National Marine Fisheries Service. (National Marine Fisheries Service, 1972)

NOAA technical report NMFS SSRF - United States. National Marine Fisheries Service. (National Marine Fisheries Service, 1979)

Nordisches Plankton ; zoologischer teil - Brandt, Karl Andreas Heinrich, 1854 -1931 (Lipsius & Tischer, 1901)

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

The North Queensland Naturalist : the journal and magazine of the North Queensland Naturalist Club - North Queensland Naturalists' Club. (The Club, 1985)

Northern and Arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum) - Naturhistoriska riksmuseet (Sweden) (Almqvist & Wiksell, 1907)

Northern and Arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum) - Naturhistoriska riksmuseet (Sweden) (Almqvist & Wiksell, 1912)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2015)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2016)

Notas preliminares; editadas pela redaccão da Revista do Museu paulista - Museu Paulista (1914)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1886)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2000)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2001)

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, 2003)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2004)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2005)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2006)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2007)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2008)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2009)

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, 2013)

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

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2015)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2016)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2017)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2019)

Nudibranchfaunaen i Drøbaksundet. I, Fam. Aeolididae - Løyning, Paul. (I kommission hos J. Dybwad, 1922)

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

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1966)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1967)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1986)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2009)

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

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1950)

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1971)

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1989)

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1992)

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1997)

Oceanus - Woods Hole Oceanographic Institution. (Woods Hole Oceanographic Institution, 1985)

Oceanus - Woods Hole Oceanographic Institution. (Woods Hole Oceanographic Institution, 1987)

On two sacoglossan slugs from Brazil - Marcus, Ernst 1893 -1968 (American Museum of Natural History, 1956)

On western Atlantic opisthobranchiate gastropods - Marcus, Ernst 1893 -1968 (American Museum of Natural History, 1958)

Ophiures de l'expédition du Siboga ... - Koehler, R. (René) 1860 -1931 (Librairie et imprimerie ci-devant E. J. Brill, 1904)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1954)

Opisthobranch - Long, Steven J. (S.J. Long & S. Bennett, 1984)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1969)