| elimination of biomphalaria pfeifferi, bulinus tropicus and lymnaea natalensis by the ampullarid snail, marisa cornuarietis, in a man-made dam in northern tanzania. | marisa cornuarietis is a well known ampullarid competitor/predator of biomphalaria glabrata in puerto rico. for the first time in africa a flourishing population of marisa has been established in a small, permanent, man-made dam at kisangara, near moshi, tanzania. prior to the release of m. cornuarietis in june 1977, this dam supported thriving populations of the pulmonate snail hosts biomphalaria pfeifferi and lymnaea natalensis; bulinus tropicus and the melaniid melanoides tuberculata were als ... | 1982 | 6122367 |