Studies on the trematode parasites of freshwater fishes of Varanasi, U.P., India. 2. On two new digenetic trematodes of the genus Faustula Poche, 1926 from a freshwater fish Clupea ilisha (Ham.). Rivista di Parassitologia, 42(3) 1981: 397-401. 399 [Zoological Record Volume 118]