Publication
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Zoogeographical remarks Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 1(1), 109-130.January 1940
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Catalogue of the Solariidae in the Rijksmuseum van Natuurlijke Historie : I. Solarium s.s. Article
Zoologische Mededelingen, 22(8), 223-256.January 1940
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Results of a reexamination of types and specimens of Gobioid fishes, with notes on the fishfauna of the surroundings of Batavia Article
Zoologische Mededelingen, 22(6), 121-210.January 1940
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Description of the Localities Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 2(1), 1-42.January 1940
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New or noteworthy Euphorbiaceae from Suriname Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 73(1), 697-704.January 1940
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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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Some notes on a collection of aquatic phanerogams from the Netherlands West Indian Islands, and from Venezuela and Columbia Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 74(1), 705-708.January 1940