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  1. By: Dropsy, U.
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 6
    Series: 2
    Issue: 3
    Date: 1934-04
    Page Range: 310--314
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  2. By: Dropsy, U.
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 10
    Series: 2
    Issue: 6
    Date: 1938-11
    Page Range: 662--662
    Publication Info: Paris, Imprimerie nationale, 1907-1971