Publication
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Alphabetical list of Dutch zoological cabinets and menageries Article
Bijdragen tot de dierkunde, 27(1), 247-346.January 1939
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Le Kou Prey ou Bœuf sauvage Cambodgien Article
Bijdragen tot de dierkunde, 27(1), 545-546.January 1939
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On South American Papilionaceae Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 52(1), 1-78.January 1939
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Freshwater fishes from the Leeward Group, Venezuela and eastern Colombia Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 2(1), 109-114.January 1940
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Scorpions Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 2(1), 138-146.January 1940
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Madreporaria from the Togian Reefs (Gulf of Tomini, North-Celebes) Article
Zoologische Mededelingen, 22(10), 265-310.January 1940
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General information Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 1(1), 1-57.January 1940
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A revision of Cerithidea (Cerithideopsilla) cingulata (Gmelin) and some related species (Mollusca, Gastropoda) Article
Zoologische Mededelingen, 22(7), 211-222.January 1940