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  1. By: Leche, Wilhelm
    Type: Article
    In: Zoologische Jahrbücher
    Volume: 28
    Date: 1910
    Page Range: 449--456
    Publication Info: Jena [Germany], G. Fischer,
  2. By: Leche, Wilhelm
    Type: Article
    In: Zoologische Jahrbücher
    Volume: 38
    Date: 1915
    Page Range: 275--370
    Publication Info: Jena [Germany], G. Fischer,