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Please read BHL's Acknowledgment of Harmful Content
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  1. By: May, H G
    Type: Article
    In: Proceedings of the United States National Museum
    Volume: 58
    Date: 1920
    Page Range: 577--588
    Publication Info: Washington Smithsonian Institution Press, [etc.]
  2. By: May, H G
    Type: Article
    In: The Biological bulletin
    Volume: 33
    Date: 1917-12-01
    Page Range: 361--395
    Publication Info: Woods Hole, Mass Marine Biological Laboratory