Affiliation: | (1) Department of Parasitology, Charles University, Vininá 7, 128 44 Prague 2, Czech Republic;(2) Biologie Parasitaire, Museum National, 61 rue Buffon, 75231 Paris cedex 05, France;(3) Department of Zoology, The Natural History Museum, Cromwell Road, London , SW7 5BD, UK |