The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1958)

Unsere Land- und Süsswasser-Mollusken : Einführung in die Molluskenfauna Deutschlands : nebst einem Anhang über das Sammeln der Mollusken - Geyer, D. (K.G. Lutz' Verlag, 1909)

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

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)

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 variations and ecological distribution of the snails of the genus Io - Adams, Charles C. (Charles Christopher), 1873 -1955 (Govt. Print. Off, 1915)

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, 1962)

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

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, 1972)

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)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1979)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1980)

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

The veliger - California Malacozoological Society. (California Malacozoological Society, 1982)

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

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

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