Publication
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Polychaete Anneliden uit het Alkmaarder Meer Article
Zoologische Mededelingen, 5(12), 110-111.January 1920
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Zur Deutung der de Haan'schen Laubheuschrecken Article
Zoologische Mededelingen, 5(14), 139-210.January 1920
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Dianoses of some new Species of Penaeidae and Alpheidae with remarks on two known species of the genus Penaeopsis A.M. Edw from the Indian Archilpelago Article
Zoologische Mededelingen, 5(11), 103-109.January 1920
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Contributions to the knowledge of Indo-Australian Fishes Article
Zoologische Mededelingen, 6(5), 64-72.January 1921
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Mittheilungen über Scyphomedusen I Article
Zoologische Mededelingen, 6(12), 109-114.January 1921
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Dritte Fortsetzung der Beschreibung von neuen Fischarten der Sunda-Expedition Article
Zoologische Mededelingen, 6(15), 203-214.January 1921
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A review of the family of Hesionidae with a description of two new species Article
Zoologische Mededelingen, 6(6), 73-83.January 1921
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Bijdrage tot de kennis der Orthoptera s. s. van den Nederlandsch Indischen Archipel en omliggende gebieden Article
Zoologische Mededelingen, 6(1), 1-44.January 1921