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The authors studied vertical and horizontal distribution of L. (Galba) truncatula in two series of dry natural habitats: draining ditches, bovine footprints. The observations show:- the location of most surviving snails on ditch sides and in low parts of footprints; - the presence of broken shells (by predators) on ditch bottom and in high parts of footprints; - the existence of a connection between the infested snails distribution and parasitic development-degree: the mature infested snails are seen in lower parts of habitats than the parts of the immature infested snails.