Publication
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Notes on some land and freshwater Mollusca from Auvergne, France Article
Zoologische Mededelingen, 35(2), 9-20.January 1957
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On a new Andinia (Gastropoda, Clausiliidae) from Peru Article
Zoologische Mededelingen, 35(16), 229-234.January 1957
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On some old types of Coenagriinine Odonata described from the Philippine Islands, with notes on allied species Article
Zoologische Mededelingen, 35(13), 161-175.January 1957
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Nouveaux Lamiaires du Rijksmuseum van Natuurlijke Historie Article
Zoologische Mededelingen, 35(9), 113-123.January 1957
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Three new giant prehistoric rats from Flores, Lesser Sunda Islands Article
Zoologische Mededelingen, 35(21), 299-314.January 1957
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On a collection of fishes from Stanley Pool (Belgian Congo) Article
Zoologische Mededelingen, 35(11), 139-151.January 1957
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Parnassiana nova : XII. Kritische Revision der Gattung Parnassius (Fortsetzung 8) Article
Zoologische Mededelingen, 35(4), 33-49.January 1957
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Parnassiana nova : XV. Kritische Revision der Gattung Parnassius (Fortsetzung 10) Article
Zoologische Mededelingen, 35(14), 177-203.January 1957