Publication
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A new and curious Burmese Ascalaphid from the Genoa Museum (Glyptobasis spinicornis) Article
Notes from the Leyden Museum, 30(4), 245-247.January 1909
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Diagnosen neuer Fische der Siboga- Expedition Article
Notes from the Leyden Museum, 31(1), 143-169.January 1909
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Pachyteria melancholica, n. sp. ♂ Article
Notes from the Leyden Museum, 31(1), 189-190.January 1909
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Einige neue exotische Trichopteren Article
Notes from the Leyden Museum, 31(1), 125-142.January 1909
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Lamellibranchiata Article
Sammlungen des Geologischen Reichs-Museums in Leiden. Neue Folge, 1(2), 333-386.January 1909
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Report on Birds from the Netherlands received from 1 September 1908 till 1 September 1909 Article
Notes from the Leyden Museum, 31(1), 211-220.January 1909
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On a Bhawania-specimen, a contribution to our knowledge of the Chrysopetalidae Article
Notes from the Leyden Museum, 30(4), 219-224.January 1909
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Pachyteria Nieuwenhuisii, n. sp Article
Notes from the Leyden Museum, 30(4), 248-248.January 1909