Cladocera Sueciae; oder Beiträge zur kenntniss der in Schweden lebenden Krebsthiere von der Ordnung der Branchiopoden und der Unterordnung der Cladoceren - Lilljeborg, Wilhelm, 1816 -1908 (Druck der Akademischen buchdruckerei E. Berling, 1900)

Die Cladoceren Böhmens - Hellich, Bohuslav. (In Commissions-Verlag bei F. Rivnác, 1877)

Die Cladoceren der Umgebung von Basel - Stingelin, Theodor (Buchdruckerei Aubert-Schuchardt, Rey & Malavallon, Nachf, 1895)

A classification of living animals - Rothschild, Nathaniel Mayer Victor Rothschild, Baron, 1910 -1990 (Wiley, 1961)

Classification of the animal kingdom - Blackwelder, Richard Eliot 1909 -2001 (Southern Illinois University Press, 1963)

A classified index and synopsis of The animal kingdom arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for Whittaker and Co, 1835)

Coleopteren : die Käfer Deutsch-Ost-Afrikas - Kolbe, H. J. (Hermann Julius), 1855 -1939 (D. Reimer, 1897)

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Coleotteri - Società geografica italiana (R. Istituto Sordi-Muti, 1895)

[Collected reprints, 1911-1931 - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (s.n, 1900)

The Collecting net - Marine Biological Laboratory (Woods Hole, Mass.) (The Collecting net, 1931)

The Collecting net - Marine Biological Laboratory (Woods Hole, Mass.) (The Collecting net, 1933)

The Collecting net - Marine Biological Laboratory (Woods Hole, Mass.) (The Collecting net, 1941)

College zoology - Hegner, Robert William, 1880 -1942 (The Macmillan company, 1912)

College zoology - Hegner, Robert William, 1880 -1942 (Macmillan, 1918)

College zoology - Hegner, Robert William, 1880 -1942 (Macmillan, 1959)