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  1. By: Smith, Allyn Goodwin - Gordon, Mackenzie
    Type: Article
    In: Proceedings of the California Academy of Sciences, 4th series
    Volume: 26
    Series: 4
    Date: 1948
    Page Range: 147--245
    Publication Info: San Francisco California Academy of Sciences
  2. By: Smith, Allyn G - Gordon, Mackenzie
    Type: Article
    In: The Nautilus
    Volume: 71
    Date: 1958
    Page Range: 151--152
    Publication Info: Melbourne, Fla., etc American Malacologists, inc., etc