Publication
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Catalogue of the Solariidae in the Rijksmuseum van Natuurlijke Historie. III. Torinia Article
Zoologische Verhandelingen, 4(1), 1-44.January 1948
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Convolvulaceae Article
Flora Malesiana - Series 1, Spermatophyta, 4(1), 388-512.January 1948
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Morphologie et systematique des Soliedes affectes d'une atrophie plus ou moins complète de l'oeil migrateur Article
Zoologische Verhandelingen, 3(1), 1-58.January 1948
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The snakes of Somaliland and the Sokotra Islands Article
Zoologische Verhandelingen, 6(1), 1-115.January 1949
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Hormetica luteomarginata, a new Blattid (Orthoptera) from Brazil Article
Zoologische Mededelingen, 30(9), 111-114.January 1949
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Plio-Pleistocene Astartidae van de Zeeuwsche stranden Article
Zoologische Mededelingen, 30(10), 115-132.January 1949
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Notes on a small collection of Hydroids from Jersey (Channel Islands) Article
Zoologische Mededelingen, 30(11), 133-162.January 1949
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Notes on a Sacculina carpiliae Guérin-Ganivet (Crustacea Rhizocephala) Article
Zoologische Mededelingen, 30(13), 191-203.January 1949