Abstract: | Presence of appreciable amount of squalene in the intermediate stages of both species of schistosomes was detected. Squalene was found to be absent in adult S. mansoni worm. The major components of the developmental stages of schistosomes were assessed as well. Chromatographic separation of lipid classes of the livers of biomphalaria snails, both infected with S. mansoni and uninfected was also carried out. |