Publication
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C.E. Carr’s Orchids from Papua Article
Flora Malesiana Bulletin, 16(1), 826-827.January 1961
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Bibliography Article
Flora Malesiana Bulletin, 16(1), 846-870.January 1961
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Editorial Article
Flora Malesiana Bulletin, 16(1), 791-793.January 1961
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Notes on the Pinnipedes from Japan described by Temminck in 1844 Article
Zoologische Mededelingen, 37(13), 211-224.January 1961
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On some species of the oriental earthworm genus Pheretima Kinberg, 1867 Article
Zoologische Mededelingen, 37(18), 293-312.January 1961
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Revision of the Micryphantidae and Linyphiidae (Araneida) of the van Hasselt collection Article
Zoologische Mededelingen, 37(16), 241-263.January 1961
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Parnassiana nova : XXX. Nachträgliche Betrachtungen zu der Revision der Subfamilia Parnassiinae (Fortsetzung 3) Article
Zoologische Mededelingen, 37(11), 167-188.January 1961
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Two interesting invertebrates, Limnadia lenticularis (L.) (Crutacea Phyllopoda) and Gonionemus vertens A. Agassiz (Limnomedusae), found in the Netherlands Article
Zoologische Mededelingen, 37(14), 225-230.January 1961