Publication
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State of progress in Malaysian plant taxonomy Article
Flora Malesiana Bulletin, 8(1), 259-260.January 1951
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Rediagnosis of the Old World Cyprinodont genus Aphanius Article
Beaufortia, 1(1), 1-6.January 1951
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Notes on cave-dwelling Microlepidoptera with description of a new genus and species from East Java (family Oinophilidae) Article
Zoologische Mededelingen, 31(13), 129-137.January 1951
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Some notes upon the anatomy of Tropidophis and Trachyboa (Serpentes) Article
Zoologische Mededelingen, 31(11), 107-124.January 1951
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Flora Malesiana, Series III: Bryophyta Article
Flora Malesiana Bulletin, 8(1), 264-267.January 1951
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Rows of small teeth in Ziphioid whales Article
Zoologische Mededelingen, 31(14), 139-148.January 1951
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On a collection of birds from the Khwae Noi Valley, Western Siam Article
Zoologische Verhandelingen, 15(1), 1-38.January 1951
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Notes on Hydrocorallia Article
Zoologische Verhandelingen, 13(1), 1-49.January 1951