[Research on the life-cycle of Metahaematoloechus exoterorchis (Rees, 1964) (Digenea) parasite of lungs of the frog Dicroglossus occipitalis (Gunther, 1858) in Togoland (author's transl)].

The sporocysts and xiphidiocercariae of Metahaematoloechus exoterorchis evolve in the Planorbid Segmentorbis kanisaensis (Preston); experiment shows that Gyraulus chudeaui (Germain) and Bulinus forskalii (Erhenberg) are possible vectors. Cercariae encyst in larvae of several Dragonflies. M. exoterorchis adult, is usually harboured by Dicroglossus occipitalis, but experimentally develops in the frog Contraua derooi Hulselmans, 1971.