Soil type and habitat of the aquatic snail Lymnaea (Galba) bulimoides Lea during the dry season

Four hundred and fifty six soil samples were randomly taken with an orchard auger from 16 soil series covering a 51.8 km² area in Benton County. Oregon, U.S.A., during the summer of 1969. In the laboratory, 60 living Lymnaea bulimoides Lea were seen to emerge within seven days from dampened soil from five series. These soils were of the dark brown silt loam and silty clay loam classes. Further characterization of the soils and implications for control of snails harboring Fasciola hepatica parthenitae while estivating are discussed.