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  1. By: Piéron, Henri
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 20
    Issue: 1
    Date: 1914
    Page Range: 13--15
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  2. By: Piéron, Henri
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 16
    Issue: 4
    Date: 1910
    Page Range: 193--196
    Publication Info: Paris, Imprimerie nationale, 1907-1971