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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Dring, D M - Rayner, R. W. (Ronald William),
    Type: Article
    In: Journal of the East Africa Natural History Society and National Museum
    Volume: 26
    Date: 1967
    Page Range: 5--46
    Publication Info: [Nairobi, Kenya], The Society, [1965]-1993