Reptilien und Amphibien - Werner, Franz, 1867 -1939 (G.J. Göschen'sche Verlagshandlung, 1908)

Die Reptilien und Amphibien Deutschlands in Wort und Bild : eine systematische und biologische Bearbeitung der bisher in Deutschland aufgefundenen Kriechtiere und Lurche - Lachmann, Hermann (Paul H©ttig, 1890)

Return / British Museum - British Museum (Natural History) (British Museum, 1856)

Return / British Museum - British Museum (Natural History) (British Museum, 1890)

Return / British Museum - British Museum (Natural History) (British Museum, 1891)

A review of the primates - Elliot, Daniel Giraud, 1835 -1915 (American Museum of Natural History, 1913)

A revision of the Cotylosauria of North America - Case, E. C. (Ermine Cowles), 1871 -1953 (Carnegie Institution of Washington, 1911)

Revue des travaux scientifiques - France. Ministère de l'Instruction publique (Imprimerie nationale, 1881)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1931)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1954)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1956)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1957)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1984)

The Riverside natural history - Kingsley, J. S. (John Sterling), 1854 -1929 (Houghton, Mifflin and Company, 1888)

The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1896)

The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1893)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1893)

Saggio di una distribuzione metodica degli animali vertebrati - Bonaparte, Charles-Lucien, 1803 -1857 (1831)

Die Säugethiere, Vögel und Amphibien nach ihrer geographischen Verbreitung tabellarisch zusammengestellt - Pompper, Hermann (Verlag der J.G. Hinrichsichen Buchhandlung, 1841)

Science - American Association for the Advancement of Science. ([s.n.], 1883)

Science - American Association for the Advancement of Science. ([s.n.], 1888)

Science - American Association for the Advancement of Science. ([s.n.], 1892)

Science - American Association for the Advancement of Science. ([s.n.], 1909)

Science - American Association for the Advancement of Science. ([s.n.], 1910)

Science - American Association for the Advancement of Science. ([s.n.], 1913)

Science - American Association for the Advancement of Science. ([s.n.], 1921)

Science from an easy chair - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (Methuen, 1910)

Scientific news for general readers; a popular illustrated weekly journal of science (1888)

Sensitive species of Nevada : 1990 report : Bureau of Land Management, Las Vegas District - Clemmer, Glenn H. (Nevada Natural Heritage Program, 1990)

Sex and internal secretions - Allen, Edgar, 1892 -1943 (Williams & Wilkins, 1961)

Sitzungsberichte. Abt. 1, Mineralogie, Krystallographie, Botanik, Physiologie der Pflanzen, Zoologie, Paläontologie, Geologie, physische Geographie und Reisen - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1895)

Sitzungsberichte. Abt. 1, Mineralogie, Krystallographie, Botanik, Physiologie der Pflanzen, Zoologie, Paläontologie, Geologie, physische Geographie und Reisen - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1896)

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft Naturforschender Freunde, 1910)

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft Naturforschender Freunde, 1915)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1916)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1968)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1976)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1997)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1999)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 2000)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 2006)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1875)

Smithsonian scientific series - Smithsonian Institution (Smithsonian Institution Series, Inc, 1930)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1965)

Snake venoms, an investigation of venomous snakes with special reference to the phenomena of their venoms - Noguchi, Hideyo, 1876 -1928 (Carnegie institution of Washington, 1909)

Snake venoms; an investigation of venomous snakes with special reference to the phenomena of their venoms - Noguchi, Hideyo, 1876 -1928 (Carnegie Inst, 1909)

Societas entomologica - International Entomological Society. (A. Kernan [etc.], 1900)

Societas entomologica - International Entomological Society. (A. Kernan [etc.], 1902)

Special bulletin - Smithsonian Institution (Government Printing Office, 1892)

The spinal cord of the frog - rana pipens, rana halecina - Mason, John James, 1916 (s.n.], 1881)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1991)

Die stämme der wirbeltiere - Abel, Othenio, 1875 -1946 (W. de Gruyter, 1919)

The standard natural history - Kingsley, J. S. (John Sterling), 1854 -1929 (S.E. Cassino and company, 1885)

A statistical survey of the snakes of the southern border of California - Klauber, Laurence Monroe, 1883 -1968 (Zoological Society of San Diego, 1931)

The story of reptile life - Pycraft, W. P. (William Plane), 1868 -1942 (Hodder and Stoughton, 1905)

The story of the amphibians and the reptiles - Ditmars, Raymond Lee, 1876 -1942 (D. Appleton and company, 1902)

The story of the universe, told by great scientists and popular authors - Singleton, Esther, 1930 (P.F. Collier and Son, 1905)

The structure of the Columella auris in the Pelycosauria / by E. D. Cope - Cope, E. D. (Edward Drinker), 1840 -1897 (1885)

Structure of the vertebrates - Little, Malcolm Edgeworth, 1893 -1977 (R. Long & R. R. Smith, Inc, 1932)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and co, 1898)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and Co., ltd, 1905)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and Co., ltd, 1932)

Studies on the structure & development of vertebrates - Goodrich, Edwin S. (Edwin Stephen), 1868 -1946 (Macmillan, 1930)

The study of animal life - Thomson, J. Arthur (John Arthur), 1861 -1933 (Morang, 1902)

Stuttgarter Beiträge zur Naturkunde. Serie A, Biologie - Staatliches Museum für Naturkunde in Stuttgart. (Staatliches Museum für Naturkunde, 1977)

Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall and Son, Angel Court, Skinner Street, 1840)

Synopsis of the contents of the British Museum - British Museum (Woodfall, 1842)

Synopsis of the contents of the British Museum - British Museum (Woodfall, 1841)

A synoptic text-book of zoölogy, for colleges and schools - Weysse, Arthur Wisswald, 1867 - (Macmillan, 1904)

System of ophthalmology - Duke-Elder, Stewart, Sir, 1898 -1978 (Mosby, 1958)

Taxonomic composition and systematics of late Cretaceous lizard assemblages from Ukhaa Tolgod and adjacent localities, Mongolian Gobi Desert - Norell, Mark A. (American Museum of Natural History, 2000)

Taxonomic revision of Carusia (Reptilia, Squamata) from the late Cretaceous of the Gobi Desert and phylogenetic relationships of anguimorphan lizards - Mongolian-American Museum Paleontological Project. (American Museum of Natural History, 1998)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1977)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1993)