EN
In order to reveal intra-specific strain variations, if any, morphological and SEM studies were performed on Fasciolopsis buski collected from Sus scrofa domestica in Assam and Meghalaya (India). Specimens of Assam origin showed the typical form of elongated body with unbranched simple intestinal caeca; the general body tegument both on the dorsal and ventral surfaces had transverse corrugations, with isolated bunshaped, round, smooth papillae abounding on the dorsal surface only. The flukes of Meghalaya origin showed an oval body contour, and slightly diverticulated intestinal caeca; the dorsal surface of the body is finely tuberculated but the ventral surface possesses scale-like, blunt papillae with socketed bases.