description of a new lung fluke species, paragonimus vietnamensis sp. nov. (trematoda, paragonimidae), found in northern vietnam. | based on morphology of metacercariae and adult worms together with molecular data from our previous study, we describe herein a new lung fluke species named paragonimus vietnamensis sp. nov. metacercariae of this new species is round and extremely large in size (nearly 800 mum in diameter) having a fragile outer cyst of variable thickness and a thin fragile inner cyst. there are little or no space between metacercaria and the inner cyst wall. these and other morphological features of metacercari ... | 2007 | 17674049 |