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  1. By: Lehrs, P
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1914
    Date: 1914
    Page Range: 681--684
    Publication Info: London Academic Press, [etc.] 1833-1965
  2. By: Lehrs, P
    Type: Article
    In: Zoologischer Anzeiger
    Volume: 25
    Date: 1902
    Page Range: 225--237
    Publication Info: Jena VEB Gustav Fischer Verlag