Turbellaria - Graff, Ludwig von, 1851 -1924 (Winter, 1904)

Turbellaria - Graff, Ludwig von, 1851 -1924 (Winter, 1912)

Die Turbellarien als Parasiten und Wirte - Graff, Ludwig von, 1851 -1924 (Leuschner & Lubensky, 1903)

Über die Bastarde von Helix Hortensis Müller und Helix Nemoralis L. : eine Untersuchung zur experimentellen Vererbungslehre - Lang, Arnold, 1855 -1914 (Gustav Fischer, 1908)

Über die von Herrn Prof. Voeltzkow auf Madagaskar und in Ostafrika erbeuteten Vaginuliden, nebst verwandtem material von ganz Afrika - Simroth, Heinrich, 1851 -1917 (E. Schweizerbart'sche verlagsbuchhandlung, Nägele & Dr. Sprosser, 1913)

Über Vorversuche zu untersuchungen über die Vareitätenbildung von Helix hortensis Müller und Helix nemoralis L - Lang, Arnold, 1855 -1914 (G. Fischer, 1904)

Ueber den Einfluss des Bodens auf die Vertheilung der Gewächse : nachgewiesen in der Vegetation des nordöstlichen Tirol's - Unger, F. (Franz), 1800 -1870 (Bei Rohrmann und Schweigerd, 1836)

Uebersicht der Flora von Augsburg - Caflisch, J. Friedrich (Johann Friedrich), 1817 -1882 (Jenisch & Stage, 1850)

University of California publications in agricultural sciences - University of California (System) (University of California Press, 1912)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1970)

An up-to-date systematic list of 3200 seashells from Greenland to Texas: translation, explanation, and gender of their names - Poirier, Henry Pierre, 1886 - (1954)

The utricular glands of the uterus, and the glandular organ of new formation which is developed during pregnancy in the uterus of the Mammalia, including the human species - Ercolani, G. B. (Giovanni Battista), 1819 -1883 (Houghton, Osgood and company, 1880)

Les variations et leur h©♭r©♭dit©♭ chez les mollusques - Pelseneer, Paul, 1863 -1945 (Hayez, 1920)

Les variations et leur hérédité chez les mollusques - Pelseneer, Paul, 1863 -1945 (M. Lamertin, M. Hayez, 1920)

Die Vegetation der Erde :Sammlung pflanzengeographischer Monographien - Engler, Adolf, 1844 -1930 (W. Engelmann, 1901)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1967)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1966)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1968)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1969)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1970)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1971)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1973)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1975)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1976)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1977)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1978)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1981)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1984)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1990)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1991)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1992)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1993)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1995)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1998)

The veliger - California Malacozoological Society. (California Malacozoological Society, 2000)

The veliger - California Malacozoological Society. (California Malacozoological Society, 2003)

The veliger - California Malacozoological Society. (California Malacozoological Society, 2005)

The veliger - California Malacozoological Society. (California Malacozoological Society, 2010)

Vergleichende Anatomie der Vegetationsorgane der Phanerogamen und Farne - Bary, A. de (Anton), 1831 -1888 (Wilhelm Engelmann, 1877)

Vergleichende Anatomie der Wirbelthiere : mit Berücksichtigung der Wirbellosen - Gegenbaur, C. (Carl), 1826 -1903 (W. Engelmann, 1901)