Oeuvres du comte de Lacépède : comprenant l'histoire naturelle des quadrupèdes ovipares, des serpents, des poissons et des cétacés; accompanées du portrait de l'auteur et d'environ 400 figures, exécutés pour cette édition par les meilleurs artistes - Cuvier, Georges, baron, 1769 -1832 (Chez F.D. Pillot, 1832)

Oeuvres du comte de Lacépède : comprenant l'histoire naturelle des quadrupèdes ovipares, des serpents, des poissons et des cétacés; accompanées du portrait de l'auteur et d'environ 400 figures, exécutés pour cette édition par les meilleurs artistes - Cuvier, Georges, baron, 1769 -1832 (Chez F.D. Pillot, 1833)

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)

Official lists and indexes of names and works in zoology - International Commission on Zoological Nomenclature (ICZN, 1987)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1853)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1852)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1864)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1894)

Oiseaux voyageurs et poissons de passage. Étude comparée d'organisme, de moeurs et d'instinct - Berthelot, Sabin, 1794 -1880 (Challamel aîné, 1875)

Okens Lehrbuch der Naturgeschichte - Oken, Lorenz, 1779 -1851 (Bei Carl Heinrich Reclam, 1816)

Om lydorganer hos fiske : En physiologisk og comparativanatomisk undersøgelse - Sørensen, William, 1848 -1916 (V. Thaning & Appels boghandel, trykt hos J.H. Schultz, 1884)

Ontogeny and systematics of fishes : based on an international symposium dedicated to the memory of Elbert Halvor Ahlstrom - United States. National Marine Fisheries Service. (American Society of Ichthyologists and Herpetologists, 1984)

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, 1957)

Oppian, Colluthus, Tryphiodorus, with an English translation by A.W. Mair - Colluthus, of Lycopolis. (W. Heinemann, 1928)

Osteology of certain Scombroid fishes - Starks, Edwin Chapin, 1867 -1932 (Stan. Univ. Press, 1911)

Otolith atlas of southern African marine fishes - Hecht, T. (Thomas) (J.L.B. Smith Institute of Ichthyology, 1995)

Die Otolithen der Fische in Bezug auf ihre Bedeutung für Systematik und Altersbestimmung - Fryd, Carlos, 1876 - (Chr. Adolff, 1901)

Our country's fishes and how to know them : a guide to all the fishes of Great Britain - Gordon, W. J. (Simpkin, Hamilton, Kent & Co, 1902)

Our living oceans : report on the status of U.S. living marine resources, 1999 - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1999)

Our living world; an artistic edition of the Rev. J. G. Wood's Natural history of animate creation - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Oeuvres du Comte de Lacépède, comprenant l'histoire naturelle des quadrupèdes ovipares, des serpens, des poissons et des cétacés - La Cépède, M. le comte de (Bernard Germain Etienne de La Ville sur Illon), 1756 -1825 (Duménil, 1836)

Pacific science - University of Hawaii. (University Press of Hawaii, 1956)

Pacific science - University of Hawaii. (University Press of Hawaii, 1958)

Pacific science - University of Hawaii. (University Press of Hawaii, 1961)

Pacific science - University of Hawaii. (University Press of Hawaii, 1962)

Pacific science - University of Hawaii. (University Press of Hawaii, 1964)

Pacific science - University of Hawaii. (University Press of Hawaii, 1966)

Pacific science - University of Hawaii. (University Press of Hawaii, 1967)

Pacific science - University of Hawaii. (University Press of Hawaii, 1968)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1897)

Palaeontographica Bohemiae - Ceská akademie ved a umení. Trída 2. (1902)

Palestine : the physical geography and natural history of the Holy Land - Kitto, John, 1804 -1854 (Charles Knight, 1841)

Pamphlets on forestry. Fish and game (1900)

Panamá : puente biológico : las Charlas Smithsonian del Mes, 1996-1999 - Heckadon Moreno, Stanley. (Instituto Smithsonian de Investigaciones Tropicales, 2001)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania (The Society, 1882)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania (The Society, 1890)