A key to the snakes of the United States - Perkins, C. B. (Clarence Basil), 1888 - (Zoological Society of San Diego, 1949)

A key to the snakes of the United States - Perkins, C. B. (Clarence Basil), 1888 - (1940)

Kirtlandia - Cleveland Museum of Natural History (Cleveland Museum of Natural History, 1983)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Royal College of Physicians of Edinburgh. (G. Fischer, 1914)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Oppel, Albert, 1863 -1915 (Fischer, 1896)

Lehrbuch der Zoologie - Claus, Carl, 1835 -1899 (Elwert, 1897)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1883)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1891)

Liangqi baxing dongwu yanjiu = Acta herpetologica Sinica - Chengdu Sheng wu yan jiu suo. (Yanjiusuo, 1979)

Liangqi baxing dongwu yanjiu = Acta herpetologica Sinica - Chengdu Sheng wu yan jiu suo. (Zhongguo ke xue yuan Zhengdu sheng su yan jiu suo, 1982)

The life of the Pleistocene or glacial period, as recorded in the deposits laid down by the greatice sheets - Baker, Frank Collins, 1867 -1942 (Pub. by the University of Illinois under the auspices of the Graduate School, 1920)

The life of vertebrates - Young, J. Z. (John Zachary), 1907 -1997 (Oxford University Press, 1962)

The lipids, their chemistry and biochemistry - Deuel, Harry James, 1897 -1956 (Interscience Publishers, 1955)

List of snakes in the Indian Museum - Indian Museum. (Trustees, 1891)

List of snakes in the Indian Museum - Indian Museum. (Printed by order of the Trustees of the Indian Museum, 1891)

List of the shells of Cuba in the . . . Museum collected by M. Ramon de la Sagra ; described by . . . A. d'Orbigny, in the "Histoire de l'Ile de Cuba." - British Museum (Natural History) (1854)

List of the specimens of birds in the collection of the British Museum - Gray, George Robert, 1808 -1872 (printed by the order of the Trustees, 1855)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1850)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1851)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1853)

List of works relating to the natural history departments of the British Museum, to the end of the year 1910 - British Museum (Natural History) (Trustees of the British Museum, 1911)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1984)

The lizards, crocodiles, and turtles of Honduras : systematics, distribution, and conservation - McCranie, James R. (Harvard University Museum of Comparative Zoology, 2018)

Lotos - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (Verlag des Deutschen Naturwissenschaftlich-Medizinischen Vereines für Böhmen "Lotos", 1907)

Louisiana herpetology, with a checklist of the batrachians and reptiles of the state and the avifauna of Louisiana, with an annotated list of the birds of the state - Beyer, George E. (George Eugene), 1861 -1926 ([s.n.], 1900)

Lunds universitets årsskrift. 2. Afd, Medicin samt matematiska och naturvetenskapliga ämmen - Lunds universitet. (Universitets], 1911)

Madagascar: an environmental profile (1987)

Madagascar: profil de l'environnement (1990)

MAGNT research report - Museums; Art Galleries of the Northern Territory (Museums and Art Galleries of the Northern Territory, 1998)

Malacologia - Institute of Malacology. (Institute of Malacology], 1966)

Management of wildlife and fish habitats in forests of western Oregon and Washington - United States. Bureau of Land Management. Desert Planning Staff - (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1985)

Managing vertebrate invasive species : proceedings of an international symposium, Fort Collins, Colorado, August 7-9, 2007 - United States. Animal; Plant Health Inspection Service. (USDA APHIS Wildlife Services, National Wildlife Research Center, 2007)

Mantis Study Group newsletter - Mantis Study Group. (Mantis Study Group, 2000)

A manual of land and fresh water vertebrate animals of the United States (exclusive of birds) - Pratt, Henry Sherring, 1859 - (P. Blakiston's Son & Co., inc, 1935)

A manual of the vertebrate animals of the northern United States : including the district north and east of the Ozark Mountains, south of the Laurentian Hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A.C. McClurg, 1888)

Manual of tropical medicine - Chalmers, Albert John, 1870 -1920 (Baillière, Tindall and Cox, 1919)

A manual on guidelines for the control of arboviral encephalitides in Canada - Canada Biting Fly Centre. (Research Branch, Agriculture Canada, 1990)

The Marine Mammal Commission compendium of selected treaties, international agreements, and other relevant documents on marine resources, wildlife, and the environment - U.S. Fish; Wildlife Service (The Commission, 1994)

Mediterranean naturalist (1892)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1915)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1916)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1917)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Editions du Muséum, 1936)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1967)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1968)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1969)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1972)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1973)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1975)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1995)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1996)