| the epidemiology of human and animal schistosomiasis in the senegal river basin. | the results of four field surveys in senegal are reported. 1. a snail survey in various parts of the senegal river basin, including the senegal river, temporary rain-fed pools, swamps, irrigation canals and drains, ricefields and lac de guier was carried out. three species of snails were commonly found: bulinus guernei was the most common, occurring in permanent habitats, bulinus senegalensis occurring in laterite pools in the eastern part of the middle valley, and also in the ricefields of guéd ... | 1985 | 2865881 |