Four samples of trematode parasites were collected from imported Abdim's storks at the Zoological gardens “Artis”, Amsterdam. The first collection was made during autopsy of a bird that had been in “Artis” for several years; some months later, the parasites were discovered in the oesophagus and mouth cavity of birds that were imported from Africa only recently. Ultimately, a number of trematodes belonging to the same species have been scraped out of the mouth cavities of 5 living Abdim's storks. My thanks are due to Mr. P. Zwart, veterinary surgeon, Utrecht, and to Dr. E. Jacobi, manager of “Artis”, Amsterdam, for collecting the parasites and making them available for taxonomic studies.