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  1. By: Overton, Frank
    Type: Article
    In: Copeia
    Volume: 26
    Date: 1916
    Page Range: 4--5
    Publication Info: [New York, N.Y., etc.], American Society of Ichthyologists and Herpetologists,
  2. By: Overton, Frank - Harper, Francis
    Type: Article
    In: The Auk
    Volume: 30
    Date: 1913
    Page Range: 74--76
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-