| [redescription and systematic reclassification of the trematode topsiturvitrema verticalia (trematoda: digenea) in a new family]. | the trematode species topsiturvitrema verticalia vélez and thatcher 1990 is redescribed based on two paratype samples and new material from the small intestine of the bat myotis levis (geoffroy), from bahia samborombón, buenos aires province, argentina. this species is characterized by the presence of a "rhynchus", that is, an anterior sucker-like attachment organ, by the position of the mouth on the ventral surface (surrounded by the ventral sucker), by two blind digestive structures, by the pr ... | 2006 | 18491645 |