| southernmost finding of lymnaea viatrix orbigny, 1835 (pulmonata: lymnaeidae), intermediate host of fasciola hepatica (linnaeus, 1758) (trematoda: digenea), in urban and rural areas of patagonia, argentina. | we report the first finding of lymnaea viatrix south of parallel 41 masculine s, in rural and urban areas from argentina. ninety snails were collected during year 2000, from a concrete pond at a public square in el bolsón village, río negro province, and 811 snails in november 1999, and during 2000 from waterbodies within a farm at cholila locality, chubut province. fasciola hepatica infection was detected in 0.9% snails from the rural area. we discuss the potential risk of l. viatrix to public ... | 2004 | 15057342 |