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By: Playfair, R LType: ArticleIn: Proceedings of the Zoological Society of LondonVolume: 1868Series:Issue:Date: 1868Page Range: 9--12Publication Info: London Academic Press, [etc.] 1833-1965Subjects:
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By: Playfair, R L - Letourneux, MType: ArticleIn: The Annals and magazine of natural history; zoology, botany, and geologyVolume: 8Series: 4Issue:Date: 1871Page Range: 373--394Publication Info: London Taylor and Francis, LtdSubjects: