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  1. By: Boettger, O. (Oskar),
    Publication info: Frankf.a.M. :Christian Winter,1877-1881.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Boettger, O. (Oskar),
    Publication info: Frankfurt a. M.,M. Diesterweg,1883.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library