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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Schifferli, Alfred,
    Type: Article
    In: Revue suisse de zoologie
    Volume: 65
    Date: 1958
    Page Range: 418--419
    Publication Info: Genève, Kundig [etc.],
  2. By: Schifferli, Alfred,
    Type: Article
    In: Revue suisse de zoologie
    Volume: 68
    Date: 1961
    Page Range: 143--145
    Publication Info: Genève, Kundig [etc.],