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  1. By: Clerc, W
    Type: Article
    In: Revue suisse de zoologie
    Volume: 11
    Date: 1903
    Page Range: 241--368
    Publication Info: Genève, Kundig [etc.],
  2. By: Clerc, W
    Type: Article
    In: Revue suisse de zoologie
    Volume: 34
    Date: 1927
    Page Range: 477--498
    Publication Info: Genève, Kundig [etc.],
  3. By: Clerc, W
    Type: Article
    In: Revue suisse de zoologie
    Volume: 37
    Date: 1930
    Page Range: 147--171
    Publication Info: Genève, Kundig [etc.],