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  1. By: Ortlepp, R J
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 9
    Series: 9
    Date: 1922
    Page Range: 413--421
    Publication Info: London Taylor and Francis, Ltd
  2. By: Ortlepp, R J
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 999--1107
    Publication Info: London Academic Press, [etc.] 1833-1965
  3. By: Ortlepp, R J
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 9
    Series: 9
    Date: 1922
    Page Range: 602--612
    Publication Info: London Taylor and Francis, Ltd
  4. By: Ortlepp, R J
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1922
    Date: 1922
    Page Range: 461--469
    Publication Info: London Academic Press, [etc.] 1833-1965