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, 1981)

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1983)

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

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1995)

Tubicolous annelids of the tribes sabellides and serpulides from the Pacific Ocean - Washington Academy of Sciences (Washington, D.C.) (Doubleday, Page, 1905)

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)

Type specimens of marine mollusca described by P. P. Carpenter from the west coast (San Diego to British Columbia) - Palmer, Katherine V. W. (Katherine Van Winkle), 1895 -1982 (Geological Society of America], 1958)

The U. S. commission of fish and fisheries and its exhibit at the Louisiana purchase exposition, St. Louis, Mo., 1904 - United States. Bureau of Fisheries. (Press of Gibson Bros, 1904)

Über die Entwicklungsgeschichte der gegenwärtigen phanerogamen Flora und Pflanzendecke der skandinavischen Halbinsel und der benachbarten schwedischen und norwegischen Inseln - Schulz, August, 1862 -1922 (E. Schweizerbart, 1900)

Über japanische cephalopoden : Beiträge zur kenntnis der systematik und anatomie der dibranchiaten - Wülker, Gerhard, 1885 -1930 (Verlag der K.B. Akademie der Wissenschaften in Kommission des G. Franzschen Verlags, 1910)

Über Sehorgane vom Typus der Wirbelthieraugen au dem Rücken von Schnecken - Semper, C. (Carl), 1832 -1893 (Kreidel, 1877)

Ueber den Einfluss der Festsitzenden Lebensweise auf die Thiere und über den Ursprung der ungeschlechtlichen Fortpflanzung durch Theilung und Knospung - Lang, Arnold, 1855 -1914 (Gustav Fischer, 1888)

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

Uebersicht der Aemter-Vertheilung und wissenschaftlichen Thätigkeit des Naturwissenschaftlichen Vereins zu Hamburg-Altona - Naturwissenschaftlicher Verein in Hamburg. (1869)

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, 1852)

University of California publications in zoology - University of California, Berkeley. (University Press, 1906)

University of California publications in zoology - University of California, Berkeley. (University Press, 1921)

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

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

Untersuchung über fossile Hölzer aus Japan : Inaugural-Dissertation, &c - Reiss, Karl, 1874 - (1907)

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 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 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)

Utilisation des inventaires d'invertébrés pour l'identification et la surveillance d'espaces de grand intérêt faunistique : colloque organisé à l'occasion de la réunion du Comité de la cartographie des invertébrés européens par le Secrétariat de la faune et de la flore du Muséum national d'histoire naturelle, sous le patronage de la Société de biogeographie, Paris les 25, 26 et 27 novembre 1987 - Beaufort, François de, 1936 -1995 (1989)

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)

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)

Variation in animals and plants - Vernon, Horace Middleton, 1870 - (H. Holt, 1903)

The variation of animals in nature - Robson, G. C. (Guy Coburn), 1888 -1945 (Longmans, Green and co, 1936)

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, 1961)

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

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

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

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

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, 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, 1974)

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)