The Nautilus. v.62 (1948-1949)

Parts

  1. New sub-species of Helicostyla from Mindoro, and of Polygyra from Florida
    By: Jackson, Ralph W
    Type: Article
    In: Nautilus
    Volume: 62
    Date: 1948
    Page Range: 40--41
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  2. Three new South American land snails (Stropho-cheilus, Thaumastus, Drymaeus)
    Type: Article
    In: Nautilus
    Volume: 62
    Date: 1949
    Page Range: 113--115
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