Publication
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Northern Hydroida in the Collections of the Rijksmuseum van Natuurlijke Historie and the Zoological Museum at Amsterdam, with Notes on their Distribution Article
Zoologische Mededelingen, 23(15), 275-312.January 1942
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Some additional Notes on external Features and on the jaw muscles of Orthragoriscus mola (L.) Article
Zoologische Mededelingen, 23(16), 313-317.January 1942
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On the variation of Mustela (Lutreola) nudipes Desm. Article
Zoologische Mededelingen, 23(9), 149-170.January 1942
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Further studies on Octocorallia Article
Zoologische Mededelingen, 24(7), 159-186.January 1942
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Notes on Cerambycidae : I - XIV Article
Zoologische Mededelingen, 24(2), 18-48.January 1942
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Orthopterological notes I : On the Lesini of the Leiden Museum (Tettigoniidae, Copiphorinae) Article
Zoologische Mededelingen, 23(13), 263-272.January 1942
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Notes on Scincid Lizards Article
Zoologische Mededelingen, 24(5), 125-152.January 1942
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Brechites Venustulus, ein neuer Fund aus dem Miocän der Landschaft Serawak, N.W.-Borneo Article
Leidse Geologische Mededelingen, 13(1), 329-333.January 1942