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  1. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1923
    Date: 1923
    Page Range: 515--529
    Publication Info: London Academic Press, [etc.] 1833-1965
  2. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1921
    Date: 1921
    Page Range: 741--755
    Publication Info: London Academic Press, [etc.] 1833-1965
  3. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1921
    Date: 1921
    Page Range: 757--767
    Publication Info: London Academic Press, [etc.] 1833-1965
  4. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 99--108
    Publication Info: London Academic Press, [etc.] 1833-1965
  5. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 149--156
    Publication Info: London Academic Press, [etc.] 1833-1965
  6. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1921
    Date: 1921
    Page Range: 547--577
    Publication Info: London Academic Press, [etc.] 1833-1965
  7. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1921
    Date: 1921
    Page Range: 1--29
    Publication Info: London Academic Press, [etc.] 1833-1965
  8. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1921
    Date: 1921
    Page Range: 277--322
    Publication Info: London Academic Press, [etc.] 1833-1965
  9. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 639--657
    Publication Info: London Academic Press, [etc.] 1833-1965
  10. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1923
    Date: 1923
    Page Range: 129--153
    Publication Info: London Academic Press, [etc.] 1833-1965
  11. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1921
    Date: 1921
    Page Range: 587--590
    Publication Info: London Academic Press, [etc.] 1833-1965
  12. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 429--453
    Publication Info: London Academic Press, [etc.] 1833-1965
  13. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 863--896
    Publication Info: London Academic Press, [etc.] 1833-1965
  14. By: Sonntag, Charles F
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1923
    Date: 1923
    Page Range: 65--83
    Publication Info: London Academic Press, [etc.] 1833-1965