| Resumo: |
On the initiative of Dr. A. D. J. Meeuse investigations were made on the fauna of the greenhouses of several Botanic Gardens in the Netherlands; material was also collected in greenhouses of other institutions and in those kept for commercial purposes. The isopods contained in the collection afforded many interesting species, so for instance six of the species are new for the Dutch fauna, viz., Trichoniscus pygmaeus Sars, Hyloniscus riparius (Koch), Cordioniscus stebbingi (Patience), Chaetophiloscia balssi Verhoeff, Trichorhina monocellata Meinertz and Nagara cristata (Dollfus). Before the systematic review of the species a list of the localities from which material was obtained is given here with enumeration of the collected species. I. Greenhouses of the Botanic Gardens, Amsterdam; October 24, 1942; leg. A. D. J. Meeuse (Cordioniscus stebbingi, Chaetophiloscia balssi, Porcellio scaber, Nagara cristata, Armadillidium vulgare). 2. Greenhouses of the "Laboratorium voor Bloembollenonderzoek" (Laboratory for Bulb Research), Lisse; June 13, 1943; leg. A. D. J. Meeuse (Oniscus asellus, Porcellio scaber, Porcellionides pruinosus, Armadillidium vulgare, Armadillidium nasutum). 3. Greenhouses of the Botanic Gardens, Leiden; May, 1924-November, 1942. leg. H. C. Blöte, L. B. Holthuis, F. P. Koumans, A. D. J. Meeuse, A. L. J. Sunier and W. Vervoort (Androniscus dentiger, Cordioniscus stebbingi, Haplophthalmus danicus, Oniscus asellus, Porcellio scaber, Porcellionides pruinosus, Armadillidium vulgare, Armadillidium nasutum). 4. Greenhouses of the Zoological Gardens, The Hague; November 4, 1942; leg. A. D. J. Meeuse (Cordioniscus stebbingi, Oniscus asellus, Por-
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