Fig. 3From: Discovery of the pyridylphenylureas as novel molluscicides against the invasive snail Biomphalaria straminea, intermediate host of Schistosoma mansoniScanning electron micrographs of B. straminea mantle. Normal mantle (a) showing smooth tegumental surface. Mantle exposed to compounds 8 (b) and 9 (c) and niclosamide (d) showing tortuosity, nipples, and erosion in the tegmental surfaceBack to article page