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  1. By: Leverkühn, Paul,
    Publication info: Berlin, R. Friedländer und Sohn, 1891
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Leverkühn, Paul,
    Publication info: Halle a.S, 1895
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library