[Myxosporidians of freshwater fishes in Cameroon. I. New species of Myxidium Bütschli, 1882].

This work deals with the study of myxosporidians parasitizing freshwater fishes in Cameroon. Fishes belonging to four families are concerned: Cyprinodontidae, Distichodontidae, Cyprinidae and Mormyridae. Five new species of Myxidium, all inhabiting the gall-bladder of their hosts, are described and named. They are as follows: Myxidium birgii, M. camerounensis, M. petrocephali, M. nyongensis and M. brienomyri. We have paid particular attention to vegetative stages in distinguishing species.