| redescription of the frog bladder fluke gorgoderina attenuata from the northern leopard frog, rana pipiens. | morphological characters used to differentiate north american bladder flukes, gorgoderina spp., are problematic and different authors use different morphological characteristics for distinguishing species. more importantly, no type specimens exist for 4 of the 12 north american species infecting anuran and caudatan hosts. a redescription of gorgoderina attenuata (stafford, 1902) stafford, 1905 is based on new collections from 6 species of anurans from arkansas, nebraska, new york, and wisconsin. ... | 2009 | 19642808 |