Publication
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Colonization of the German part of the river Rhine by the Asiatic clam, Corbicula fluminea Müller, 1774 (Pelecypoda, Corbiculidae) Article
Bulletin Zoologisch Museum, 13(2), 13-16.January 1991
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The type specimens of Edessa urus Erichson, 1848 (Heteroptera: Pentatomidae) Article
Zoologische Mededelingen, 65(23), 313-316.January 1991
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The genera Mitchella and Damnacanthus. Evidence for their close alliance; comments on the campylotropy in the Rubiaceae and the circumscription of the Morindeae Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 35(2), 307-345.January 1991
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Gammaridea and Caprellidea (Crustacea — Amphipoda) of the Portuguese south-western continental shelf: taxonomy and distributional ecology Article
Bijdragen tot de dierkunde, 61(2), 65-87.January 1991
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Revision of the genus Castillomys (Muridae, Rodentia) Article
Scripta Geologica, 47-81.January 1991
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On Cyprian Helicellinae (Mollusca: Gastropoda Pulmonata: Helicidae), making a new start Article
Zoologische Mededelingen, 65(7), 99-128.January 1991
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Early Phanerozoic trace fossils from the Sierra Albarrana quartzites (Ossa-Morena Zone, Southwest Spain) Article
Scripta Geologica, 47-53.January 1991
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A new and presumably now extinct species of Millepora (Hydrozoa) in the eastern Pacific Article
Zoologische Mededelingen, 65(20), 267-276.January 1991