Ueber die Entwickelung der Schildkröten / Untersuchungen von Heinrich Rathke - Rathke, Heinrich, 1793 -1860 (Vieweg, 1848)

Ueberblick über die Trias : mit Berücksichtung ihres Vorkommens in der Alpen - Alberti, Friedrich August von, 1795 -1878 (J.G. Cotta, 1864)

The Uganda protectorate : an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1904)

The Uganda protectorate; an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift Valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1902)

Umrisse der vergleichenden Anatomie - Royal College of Physicians of Edinburgh. (O. Wigand, 1842)

The underwater guide to marine life - Ciampi, Elgin. (Barnes, 1956)

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1858)

Unity and diversity in biochemistry; an introduction to chemical biology - Florkin, Marcel (Pergamon, 1960)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1948)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1946)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1960)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1962)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1961)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1969)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1968)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1930)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1935)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1950)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1960)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1962)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1963)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1970)

Untersuchungen über die Fauna Peruana - Humboldt, Alexander von, 1769 -1859 (Scheitlin und Zollikofer, 1844)

Untersuchungen uber die Entwickelungs-Gesetze der organischen Welt wahrend der Bildungs-Zeit unserer Erd-Oberflache : eine von der Franzosischen Akademie im Jahre 1857 gekronte Preisschrift, mit ihrer Erlaubniss Deutsch herausgegeben - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart'sche Verlagshandlung, 1858)

Untersuchungen zur Ichthyologie angestellt in der Physiologischen und Vergleichend-Anatomischen anstalt der Universitat Freiburg nebst einer Geschichte und Beschreibung dieser Institute - Ecker, Alexander, 1816 -1887 (1857)

Untersuchungen zur Morphologie und Systematik der Vögel, zugleich ein Beitrag zur Anatomie der Stütz- und Bewegungsorgane - Fürbringer, Maximilian, 1846 -1920 (T. van Holkema, 1888)

Untersuchungen zur vergleichenden anatomie der wirbelsäule bei amphibien und reptilien - Gegenbaur, C. (Carl), 1826 -1903 (W. Engelmann, 1862)

Untersuchungen zur vergleichenden anatomie der wirbelthiere - Gegenbaur, C. (Carl), 1826 -1903 (W. Engelmann, 1864)

The uses of animals in relation to the industry of man; being a course of lectures delivered at the South Kensington Museum - Lankester, Edwin, 1814 -1874 (R. Hardwicke, 1860)

Variation in the scincid lizard Lipinia noctua and notes on other Lipinia from the New Guinea region - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1979)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1974)

Vergleichend-anatomische Beschreibung des Kehlkopfs : mit Berücksichtigung des Kelhlopfs der Reptilien - Henle, Jacob, 1809 -1885 (Leopold Voss, 1839)

Vergleichende Anatomie der Wirbelthiere - Wiedersheim, Robert, 1848 -1923 (G. Fischer, 1902)

Vergleichende Anatomie der Wirbelthiere : mit Berücksichtigung der Wirbellosen - Gegenbaur, C. (Carl), 1826 -1903 (W. Engelmann, 1898)