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  1. By: Bertsch, Hans. - Kerstitch, Alex N.
    Type: Article
    In: The veliger
    Volume: 26
    Date: 1984
    Page Range: 264--273
    Publication Info: Berkeley, CA, California Malacozoological Society,
  2. By: Kerstitch, Alex N. - Bertsch, Hans.
    Type: Article
    In: The veliger
    Volume: 30
    Date: 1988
    Page Range: 421--421
    Publication Info: Berkeley, CA, California Malacozoological Society,