Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1979)

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1990)

Twelve lectures on comparative embryology, delivered before the Lowell Institute, in Boston, December and January, 1848-9 - Agassiz, Louis, 1807 -1873 (Henry Flanders & Co, 1849)

Two new polychaetes of the families Pilargidae and Capitellidae from the Gulf of Mexico - Jones, Meredith L (American Museum of Natural History, 1961)

Über die Familie der Rissoiden und insbesondere die Gattung Rissoina - Schwartz von Mohrenstern, Gustav, 1809 -1890 (K.K. Hof- und Staatsdruckerei, 1860)

Ueber den innern Bau der See- und einiger ausländischen Erd- und Flussschnecken - Schröter, Johann Samuel, 1735 -1808 (Varrentrapp Sohn und Wenner, 1783)

Ueber die Herrn Dr. Robby Kossmann am Rothen Meere Gesammelten Mollusken / von H. Alexander Pagenstecher - Pagenstecher, H. Alexander (Heinrich Alexander), 1825 -1889 (W. Engelmann, 1877)

Ueber Vorderasiatische Conchylien nach den Sammlungen des Prof. Hausknecht [!] - Martens, Eduard von, 1831 -1904 (T. Fischer, 1874)

Ulyssis Aldrovandi... Historiam naturalem...de animalibus insectis libri septem... - Aldrovandi, Ulisse, 1522 -1605 (Typis Pauli Jacobi, 1618)

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

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1846)

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1852)

Unsere palaeozoologische Kenntnis von Java, mit einleitenden Bemerkungen über die Geologie der Insel - Martin, Johannes Karl Ludwig, 1851 -1942 (E. J. Brill, 1919)

Unterhaltungen aus der Naturgeschichte [11-12] der Würmer, erster [-zweyter] Theil - Wilhelm, Gottlieb Tobias, 1758 -1811 (in der Mart. Engelbrechtischen Kunsthandlung, 1802)

Unterhaltungen aus der Naturgeschichte [15] Der Würmer zweyter Theil - Wilhelm, Gottlieb Tobias, 1758 -1811 (Schlosser, 1834)

Unterhaltungen für Conchylienfreunde und für Sammler der Mineralien : Erstes Stück - Bock, Johann Carl, 1757 -1843 (bey Wolfgang Walther, 1789)

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 über die fossilen und subfossilen Cetaceen Europa's - Brandt, Johann-Friedrich, 1802 -1879 (1873)

Untersuchungen uber die struktur und bildung der schale der in der Kieler bucht hauftig vorkommenden muscheln - Ehrenbaum, Ernst, 1861 -1942 (Wilhelm Engelmann, 1884)

Untersuchungen über nicht celluläre Organismen : namentlich Crustaceen-Panzer, Mollusken-Schalen und Eihüllen / von W. von Nathusius-Königsborn - Nathusius, Wilhelm von, 1821 -1899 (Wiegandt, Hempel & Parey, 1877)

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)

Das Urogenitalsystem von Ampullaria gigas Spix - Sachwatkin, Viktor. (Alb. Bonniers, 1920)

The U.S. Naval Astronomical Expedition to the southern hemisphere, during the years 1849-'50-'51-'52 - Gilliss, J. M. (James Melville), 1811 -1865 (A. O. P. Nicholson, printer, 1855)

The utilization of minute life; being practical studies on insects, Crustacea, Mollusca, worms, polypes, Infusoria, and sponges - Phipson, Thomas Lamb, 1833 - (Groombridge and sons, 1864)

The utilization of minute life; being practical studies on insects, Crustacea, Moll sca, worms, polypes, Infusoria, and sponges - Phipson, T. L. (Thomas Lamb), 1833 -1908 (Groombridge, 1864)

The utilization of minute life; being practical studies on insects, Crustacea, Moll sca, worms, polypes, Infusoria, and sponges. By Dr. T. L. Phipson - Phipson, T. L. (Thomas Lamb), 1833 -1908 (Groombridge, 1864)

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)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1958)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1962)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1963)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1965)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1964)

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

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

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

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, 1979)

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

The veliger - California Malacozoological Society. (California Malacozoological Society, 1985)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1986)

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

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, 2001)

The veliger - California Malacozoological Society. (California Malacozoological Society, 2007)