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  1. Craspedote Medusen / von Cl. Hartlaub.
    By: Hartlaub, Clemens Cornelius,
    Publication info: Kiel ;Lipsius & Tischer,191?-
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  2. Die comatuliden / von Cl. Hartlaub ; with eighteen plates.
    By: Hartlaub, Clemens Cornelius, - Harvard University - U.S. Coast and Geodetic Survey.
    Publication info: Cambridge, Mass., U.S.A. :Printed for the Museum,1912.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  3. Revision der Sertularella-Arten, von Clemens Hartlaub.
    By: Hartlaub, Clemens Cornelius,
    Publication info: Hamburg :L. Friederichsen,1900
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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