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  1. By: Fay, Francis H - Ray, Carleton
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 53
    Issue: 1
    Date: 1968-04-15
    Page Range: 1--18
    Publication Info: New York,
  2. By: Ray, Carleton - Fay, Francis H
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 53
    Issue: 2
    Date: 1968-04-15
    Page Range: 19--32
    Publication Info: New York,