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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Efford, Ian E.
    Type: Article
    In: Breviora
    Volume: 318
    Date: 1969
    Page Range: 1--9
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-
  2. By: Abele, Lawrence G. - Efford, Ian E.
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 84
    Date: 1971
    Page Range: 501--506
    Publication Info: Washington, Biological Society of Washington,