author(s)
Augustin Siama and Alexandre Michel Njan Nloga

abstract
Fasciolosis is cosmopolitan disease of ruminants especially of the wetlands where intermediate hosts live. In Far-North Region of Cameroon, distribution of L. natalensis deposits is very little known. Manual malacological research carried out from February to June 2014 in105 water points of pastures reveal the presence of 30 L. natalensis deposits corresponding to 26.67% of sites studied. Deposits are only located in the Floodplains and in two water points of Mandara Mountains. A total of 15 Molluscs species are listed in all sites. Biom. pfeifferi and Be. unicolor are more significantly abundant (F = 1.62, ndl = 70, P = 0.094). In the deposits, 14 species have been identified with a very significant predominance of L. natalensis and Biom. pfeifferi (F = 10.39, n = 30, P<0.000) and Trematode hosts (F = 22.16, ndl = 1, P = 0.00000). Habitat influenced very significantly (F = 1.62, ndl = 25, P = 0.001) on the abundance of L. natalensis and justify the epidemiological importance of fasciolosis.