[Revision of Aploparaksis crassirostris and A. sinensis (Cestoda: Hymenolepididae)].

Based on the examination of specimens of Apoloparaksis crassirostris deposited in the Museum of Zoology in Copenhagen and the Museum of Natural History in Geneva and cestode material from other collections, we have carried out the revision of this species, designated the lectotype and paralectotypes, made its redescriptions, enumerated synonyms, showed the only host of this species in the snipe Gallinago gallinago, and more precisely mapped the distribution range of the parasite. The investigation of the type series of A. sinensis, the parasite of the woodcock Scolopax rusticola, deposited in the Museum of Natural History in Geneva, confirmed the validity of this species, earlier considered as synonym of A. crassirostris. The lectotype and paralectotypes of A. sinensis were designated. Some data on its life cycle have been obtained. It was also found by the experimental invasion that five species of oligochaetes of the family Lumbricidae are intermediate hosts. The metacestodes of this species belongs to the tailed diplocyst modification and posesses a characteristic feature, the bifurcation of tail.