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  1. By: Postlethwait, John H - Schneiderman, Howard A
    Type: Article
    In: The Biological bulletin
    Volume: 138
    Date: 1970-02-01
    Page Range: 47--55
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  2. By: Postlethwait, John H
    Type: Article
    In: The Biological bulletin
    Volume: 147
    Date: 1974-08-01
    Page Range: 119--135
    Publication Info: Woods Hole, Mass Marine Biological Laboratory