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  1. By: Bowden, John - Heppell, David
    Type: Article
    In: Journal of Conchology
    Volume: 26
    Issue: 5
    Date: 1968-10
    Page Range: 321--328
    Publication Info: London D. Bogue
  2. By: Bowden, John - Heppell, David
    Type: Article
    In: Journal of Conchology
    Volume: 26
    Issue: 2
    Date: 1966-06
    Page Range: 99--124
    Publication Info: London D. Bogue
  3. By: Bowden, John - Heppell, David
    Type: Article
    In: Journal of Conchology
    Volume: 26
    Issue: 4
    Date: 1968-01
    Page Range: 237--272
    Publication Info: London D. Bogue