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  1. By: Van Wagenen, Gertrude,
    Type: Article
    In: Copeia
    Volume: 43
    Date: 1917
    Page Range: 43--44
    Publication Info: [New York, N.Y., etc.], American Society of Ichthyologists and Herpetologists,
  2. By: Van Wagenen, Gertrude, - Simpson, M E
    Type: Article
    In: Revue suisse de zoologie
    Volume: 64
    Date: 1957
    Page Range: 807--819
    Publication Info: Genève, Kundig [etc.],