Occasional papers - Texas Tech University. Museum, (The Museum, 2003)

Occasional papers - Texas Tech University. Museum, (The Museum, 2009)

Occasional papers - Texas Tech University. Museum, (The Museum, 2019)

Occasional papers - Texas Tech University. Museum, (The Museum, 2020)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1904)

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, 1974)

Occasional papers of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The University, 1984)

Occasional papers of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The University, 1991)

Occasional papers of the Natural History Museum, the University of Kansas, Lawrence, Kansas - University of Kansas. Museum of Natural History. (The University, 1996)

Occasional papers - Tulane University. Museum of Natural History. (The Museum, 1982)

The occurrence of Hadromys (Rodentia, Muridae) in early Pleistocene Siwalik strata in northern Pakistan and its bearing on biogeographic affinities between Indian and northeastern African murine faunas - Musser, Guy G. (American Museum of Natural History, 1987)

Ohrknorpel und äusseres ohr der Säugetiere; eine vergleichend-anatomische Untersuchung - Boas, J. E. V. (Johan Erik Vesti), 1855 -1935 ([Nielsen & Lydiche (A. Simmelkiær)], 1912)

Oil spill sensitivity of the western Indian Ocean islands: coastal data from the Comoros Islands, Madagascar, Mauritius, Reunion and the Seychelles - Green, Edmund P. (Edmund Peter) 1965 - (WCMC, 1998)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1981)

On Lepidoptera Heterocera from China, Japan, and Corea - Leech, John Henry, 1862 -1900 (1897)

On the anatomy of vertebrates - Owen, Richard, 1804 -1892 (Longmans, Green, 1866)

On the biology and systematic position of Microtus abbreviatus Miller, a vole endemic to the St. Matthew Islands, Bering Sea - Rausch, V R (1968)

On the identity of "Zygodontomys" punctulatus (Rodentia, Muroidea) - Voss, Robert S. (American Museum of Natural History, 1991)

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)

The origin and evolution of life, on the theory of action, reaction and interaction of energy - Osborn, Henry Fairfield, 1857 -1935 (C. Scribner's Sons, 1917)

The origin and relationship of the large mammals of North America - Grant, Madison. (Reprinted from the eighth annual report of the New York Zoological Society, 1904)

The origin and relationship of the large mammals of North America - New York Zoological Society. (1904)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1897)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1900)

Our country's animals and how to know them. A guide to the mammals, reptiles and amphibians of Great Britain - Gordon, W. J. (Simpkin, Marshall, Hamilton, Kent, 1904)

Outlines of economic zoölogy - Reese, A. M. (Albert Moore), 1872 -1965 (P. Blakiston's Son & Co, 1919)

Outlines of vertebrate palæontology for students of zoology - Woodward, Arthur Smith, 1864 -1944 (University Press, 1898)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1909)

Pacific flying foxes (Mammalia, Chiroptera) : two new species of Pteropus from Samoa, probably extinct - Helgen, Kristofer M. (American Museum of Natural History, 2009)

Pacific science - University of Hawaii. (University Press of Hawaii, 1947)

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

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

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1895)

Palaeontographica (Theodor Fischer, 1885)

Palaeontology - Palaeontological Association (Palaeontological Association, 1964)

Palaeontology - Palaeontological Association (Palaeontological Association, 1972)

Palaeontology - Palaeontological Association (Palaeontological Association, 1985)

Paleontological investigations at Mineral Hill Cave - Broughton, Jack M. (U.S. Department of the Interior, Bureau of Land Management, Elko Field Office, 2004)

Paleontological research - Nihon Koseibutsu Gakkai (Palaeontological Society of Japan, 2001)

Palsas in Baker Creek Basin N.W.T. : an ecosystematic study - Luff, David Owen. (University of Alberta, Dept. of Geography, 1978)

Pamphlets on forestry in West Virginia (1900)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1954)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1945)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1922)

Papers in vertebrate paleontology honoring Robert Warren Wilson - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1984)

Papers on mammalogy - Field Museum of Natural History. (Field Museum of Natural History, 1941)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1911)

Parasitology (Cambridge University Press, 1922)

Partnerships for sustainable forest ecosystem management : fifth Mexico/U.S. biennial symposium : October 17-20, 1994, Guadalajara, Jalisco, Mexico - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1995)

Patterns in the structure of mammalian communities - Morris, Douglas W. (Texas Tech University Press, 1989)

Patterns of genetic diversification in a widely distributed species of bat, Molossus molossus - Ammerman, Loren K. (Museum of Texas Tech University, 2016)

Patterns of morphological and molecular evolution in the Antillean tree bat, Ardops nichollsi (Chiroptera: Phyllostomidae) - Genoways, Hugh H. (Museum of Texas Tech University, 2017)

Paulamys, a replacement name for Floresomys Musser, 1981 (Muridae), and new material of that taxon from Flores, Indonesia - Musser, Guy G. (American Museum of Natural History, 1986)

Peromyscus allophylus Osgood : a synonym of Peromyscus gymnotis Thomas (Rodentia, Muridae) - Musser, Guy G. (American Museum of Natural History, 1971)

Persistent fontanelles in rodent skulls - Anderson, Sydney, 1927 -2018 (American Museum of Natural History, 2001)

Perú: Cordillera Escalera-Loreto - Stotz, Douglas F. (Douglas Forrester), 1956 - (The Field Museum, Science and Education, 2014)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Philippine rats : a new species of Crateromys from Dinagat Island - Rabor, Dioscoro S. (American Museum of Natural History, 1985)

Philippine Rattus : a new species from the Sulu Archipelago - Heaney, Lawrence R. (American Museum of Natural History, 1985)

Philippine rodents : chromosomal characteristics and their significance for phylogenetic inference among 13 species (Rodentia, Muridae, Murinae) - Rickart, Eric A. (American Museum of Natural History, 1993)

Philippine rodents : redefinitions of known species of Batomys (Muridae, Murinae) and description of a new species from Dinagat Island - Heaney, Lawrence R. (American Museum of Natural History, 1998)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1850)

Phylogenetic relationships of New World porcupines (Rodentia, Erethizontidae) : implications for taxonomy, morphological evolution, and biogeography - Jansa, Sharon A. (American Museum of Natural History, 2013)

Phylogenetic relationships of whiptail lizards of the genus Cnemidophorus (Squamata, Teiidae) : a test of monophyly, reevaluation of karyotypic evolution, and review of hybrid origins - Dessauer, Herbert C. (American Museum of Natural History, 2002)

The phylogenetic resolving power of discrete dental morphology among extant hedgehogs and the implications for their fossil record - Gould, Gina C. (American Museum of Natural History, 2001)

The physiology of reproduction - Marshall, F. H. A. (Francis Hugh Adam), 1878 -1949 (Longmans, Green and Co, 1910)

The physiology of reproduction - Marshall, F. H. A. (Francis Hugh Adam), 1878 -1949 (Longmans, 1922)

The pictorial museum of animated nature ... - Knight, Charles, 1791 -1873 (C. Knight, 1844)

The pictorial museum of animated nature - Knight, Charles, 1791 -1873 (C. Cox, 1844)

A pocket list of the mammals of eastern Massachusetts, with special reference to Essex County - Brown, C. Emerson, 1869 -1949 (Peabody Academy of Science, 1913)

Popular official guide to the New York zoological park - New York Zoological Society. (New York zoological Society, 1915)

Popular official guide to the New York Zoological Park - New York Zoological Society. (New York Zoological Society, 1913)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1875)

Popular Science Review (1878)

Population ecology of rodents in the semiarid shrublands of Chile - Fulk, George W. (The Museum, Texas Tech University, 1975)

A possible heptaxodontine and other caviidan rodents from the Quaternary of Jamaica - MacPhee, R. D. E. (American Museum of Natural History, 2003)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1979)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1986)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1971)

Practical bacteriology, blood work and animal parasitology : including bacteriological keys, zoological tables and explanatory clinical notes - Stitt, Edward Rhodes, 1867 - (P. Blakiston, 1914)

Practical bacteriology, blood work and animal parasitology, including bacteriological keys, zoological tables and explanatory clinical notes - Stitt, Edward Rhodes, 1867 - (P. Blakiston's son and co, 1916)

The practical study of malaria and other blood parasites - Christophers, S. R. (Samuel Rickard), 1873 -1978 (Published for the University Press of Liverpool by Williams and Norgate, 1908)

Predator and rodent control in eastern Montana - Economic Development Association of Eastern Montana. (Resources Development Internship Program, Western Interstate Commission for Higher Education, 1974)

Predicted hantavirus risk in 2006 for the southwestern U.S - Glass, Gregory E (Museum of Texas Tech University, 2006)

A preliminary survey of the rodents and lagomorphs in Central and Southern Alberta - University of Alberta. Department of Zoology. (the University of Alberta, 1951)

The primaeval world of Switzerland - Heer, Oswald, 1809 -1883 (Longmans, Green, 1876)

Primera reunión del Congreso científico latino americano celebrada en Buenos Aires del 10 al 20 de abril de 1898 por iniciativa de la Sociedad científica argentina... - Congreso Científico Latino Americano Buenos Aires, Argentina) 1898 - (Compañia sud-americana de billetes de banco, 1899)

Principles of animal biology - Larue, George R. 1882 - (McGraw-Hill book company, inc, 1946)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W.B. Saunders, 1912)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1874)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1922)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1897)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1906)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1923)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1935)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1958)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1959)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1973)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1981)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1983)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1984)