Stunkard, H. W. (1959). The morphology and life-history of the digenetic trematode, Asymphylodora amnicolae n. sp.; the possible significance of progenesis for the phylogeny of the Digenea. Biological Bulletin. 117 (3): 562-581.
The morphology and life-history of the digenetic trematode, Asymphylodora amnicolae n. sp.; the possible significance of progenesis for the phylogeny of the Digenea