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  1. By: Schevill, William Edward, - Watkins, William A. - Ray, Carleton
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 51
    Issue: 10
    Date: 1966-11-29
    Page Range: 103--106
    Publication Info: New York,
  2. By: Schevill, William Edward, - Watkins, William A.
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 51
    Issue: 6
    Date: 1966-09-15
    Page Range: 71--76
    Publication Info: New York,
  3. By: Schevill, William Edward, - Watkins, William A.
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 50
    Issue: 3
    Date: 1965-05-28
    Page Range: 45--46
    Publication Info: New York,