Publication
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Diagnoses of new species of Macrurous Decapod Crustacea from the Siboga-expedition Article
Zoologische Mededelingen, 4(11), 159-166.January 1918
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On a remarquable fresh-water Polychaete "Nereis nouhuysi" from the East-Indies Article
Zoologische Mededelingen, 4(9), 143-145.January 1918
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Lebioderus Goryi Westw. var. bicolor nov. var. Article
Zoologische Mededelingen, 4(16), 251-253.January 1918
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Das accessorische Schalenstück von Corbula Article
Zoologische Mededelingen, 4(3), 51-53.January 1918
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Piperaceae a Jaheri in insulis Key collectae Article
Mededeelingen van 's Rijks Herbarium, Leiden, 32(1), 1-2.January 1918
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De identiteit van Mus diardii Jentink Article
Zoologische Mededelingen, 4(6), 67-69.January 1918
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A contribution towards our knowledge of the Polychaeta of South Africa Article
Zoologische Mededelingen, 4(5), 63-66.January 1918
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Over de vinvisschen in de landen om de Noordzee gestrand tusschen de jaren 1306-1918 Article
Zoologische Mededelingen, 4(14), 179-245.January 1918