Publication
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A review of old world species of Thyreus Panzer (=Crocisa Jurine) (Hym., Apoidea, Anthophoridae) Part 4. Palearctic species Article
Zoologische Verhandelingen, 98(1), 1-139.January 1968
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Papuan Hylid Frogs of the Genus Hyla Article
Zoologische Verhandelingen, 96(1), 1-203.January 1968
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The second Israel South Red Sea expedition, 1965 : Report no. 7. The Palinuridae and Scyllaridae of the Red Sea Article
Zoologische Mededelingen, 42(26), 281-301.January 1968
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Parabomolochus globiceps nov. spec. (Copepoda, Cyclopoida) from the gills of Austroatherina smitti (Lahille) (Pisces, Atherinidae) Article
Zoologische Mededelingen, 43(11), 141-154.January 1968
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A rhinoceros from the late miocene of Fort Ternan, Kenya Article
Zoologische Mededelingen, 43(6), 77-92.January 1968
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A new Syndesmis from Saint-Barthélemy, Lesser Antilles (Neorhabdocoela) Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 26(1), 134-139.January 1968
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Fig wasps from Israeli ficus Sycomorus and related East African species (Hymenoptera, Chalcidoidea) 2. Agaonidae (concluded) and Sycophagini Article
Zoologische Mededelingen, 42(28), 307-320.January 1968
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Contributions to the distribution of the Clausiliidae (Gastropoda, Pulmonata) in the Karst regions of Romania Article
Zoologische Mededelingen, 43(4), 41-55.January 1968