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  1. By: Oka, Hidemiti - Watanabe, Hiroshi
    Type: Article
    In: The Biological bulletin
    Volume: 112
    Date: 1957-04-01
    Page Range: 225--240
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  2. By: Oka, Hidemiti - Watanabe, Hiroshi
    Type: Article
    In: The Biological bulletin
    Volume: 117
    Date: 1959-10-01
    Page Range: 340--346
    Publication Info: Woods Hole, Mass Marine Biological Laboratory