1. Buttner A (1951) La progenese chez le trematodes digenetiques. Recherches personelles sur deux especes progenetiques deja connues: Ratzia joyeuxi (Brumpt, 1922) et Pleurogenes medians (Olss., 1876). Ann Parasitol Hum Comp 22:319?323
2. Dissanaike AS, Fernando CHF (1960) Parathelphusa ceylonensis C.H. Fern, second intermediate host of Pleurogenoides sitapurii (Srivastava). J Parasitol 46:889?890
3. Gupta NK (1954) On Pleurogenes (Telogonella) sawanensis n. sp. parasitic in the intestine of Rana cyanophlyctis with a discussion on the systematic position of the genus Pleurogenes Looss 1896. Res Bull Punjab Univ Zool 58:143?148
4. Gupta NK, Chopra R (1985) On digenetic trematodes of amphibians from India. Part II. Res Bull Punjab Univ (Science) 35:11?18
5. Gupta SP, Agarwal V (1966) Two trematode parasites of Rana cyanophlyctis from Udaipur ? (Rajasthan). Proc Natn Acad Sci India Section B 36:530?536