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  1. By: Norris, Adrian - Pickrell, D. G.
    Type: Article
    In: Journal of Conchology
    Volume: 27
    Issue: 5-6
    Date: 1972-03
    Page Range: 411--417
    Publication Info: London D. Bogue
  2. By: Pickrell, D. G.
    Type: Article
    In: Journal of Conchology
    Volume: 27
    Issue: 1
    Date: 1969-10
    Page Range: 46--46
    Publication Info: London D. Bogue