| morphological and its2 molecular characterization of ribeiroia cercariae (digenea: psilostomidae) from biomphalaria spp. (gastropoda: planorbidae) in northern argentina. | species of ribeiroia use planorbid snails as intermediate host. since there is little information about these digenean parasites in south america, we aimed to assess whether ribeiroia cercariae from 3 north argentina locations belonged to the same species and differed from ribeiroia cercariae described elsewhere. specimens were obtained from biomphalaria tenagophila and biomphalaria orbignyi (salta province), and biomphalaria occidentalis (corrientes province). morphological traits of cercariae ... | 2015 | 26075730 |