author(s)
Hira Soofi, Nadir Ali Birmani and Ali Murtaza Dharejo

abstract
During current studies on helminth parasites of Siluriform catfish Mystus cavasius of river Indus at Jamshoro, Sindh, Pakistan. Total of 67 host fishes were collected from different habitats of study area. During examination of visceral organs, the 7 trematodes belong to genus Pseudophyllodistomum, Cribb, 1987 were collected from gallbladder of catfish Mystus cavasius. Trematodes collected from intestine have close resemblance with species Pseudophyllodistomum johnstoni Cribb, 1987 in having body shape, size and other diagnostic features and identified as such. Previously Pseudophyllodistomum johnstoni Cribb, 1987 collected from urinary bladder of freshwater fishes of Australia, and Japan. Whereas present species recorded from Siluriform catfish Mystus cavasius of river Indus, Jamshoro, Sindh, Pakistan. This is first record of genus Pseudophyllodistomum, Cribb, 1987 from Pakistan.