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Ernst Hartert's expedition to the central western Sahara; Mammals
Vol 20, Page 28, Date 1913
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Some notes on the genera Zaglossus and Tachyglossus
Vol 20, Page 188, Date 1913
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New Lithosianae
Vol 20, Page 192, Date 1913
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The oriental Anthribidae of the Van de Poll collection
Vol 20, Page 257, Date 1913
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Ornithologische Miszellen aus dem Indo-Australischen Gebiet. II. Teil
Vol 20, Page 289, Date 1913
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Die Vogel von Bali
Vol 20, Page 325, Date 1913
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Contributions to a knowledge of the subfamilies Oenochrominae and Hemitheinae of Geometridae
Vol 20, Page 388, Date 1913
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Quelques Névroptères du Sahara Français
Vol 20, Page 444, Date 1913
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On Diptera collected in the western Sahara by Dr. Ernst Hartert, with descriptions of new species, Part 1, Bombyliidae
Vol 20, Page 460, Date 1913
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Order Rhynchota.—Homoptera
Vol 20, Page 465, Date 1913
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List of the collections of birds made by Albert S. Meek in the lower ranges of the Snow mountains, on the Eilanden river and on Mount Goliath during the years1910 and 1911
Vol 20, Page 473, Date 1913
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Siphonaptera collected by Mr. Robin Kemp in tropical Africa
Vol 20, Page 528, Date 1913
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Ernst Hartert's expedition to the central western Sahara. Rhynchota Heteroptera
Vol 20, Page 592, Date 1913
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Expedition to the Central Western Sahara by Ernst Hartert. XVII. Orthoptères
Vol 20, Page 603, Date 1913