Trematode cercariae infections in freshwater snails of Chitwan district, central Nepal

摘要: Because Nepal has been virtually unexplored with respect to its trematode fauna, we sampled freshwater snails from grazing swamps, lakes, rivers, swamp forests, and temporary ponds in the Chitwan district of central between July October 2008. Altogether screened 1,448 individuals nine snail species (Bellamya bengalensis, Gabbia orcula, Gyraulus euphraticus, Indoplanorbis exustus, Lymnaea luteola, Melanoides tuberculata, Pila globosa, Thiara granifera lineata) for shedding cercariae. A total 4.3% (N=62) infected were found, distributed among as follows (B. bengalensis - 1, G. orcula 11, euphraticus 8, I. exustus 39, L. luteola 2 T. 1). Collectively, six morphologically distinguishable types cercariae found: amphistomes, brevifurcate-apharyngeate (likely mammalian schistosomes), clinostome, gymnocephalus fasciolid), longifurcate-pharyngeate xiphidiocercaria. had highest prevalence infection, harbored all noted cercarial except One double infection (xiphidiocercaria cercaria) was found this snail. Amphistome common exustus. The (38.3%) recorded collected ponds. DOI: http://dx.doi.org/10.3126/hjs.v7i9.2183 Himalayan Journal Sciences Vol.7 Issue 9 2011 pp.9-14