A new nematode D. yusufi n. sp. is recorded from the body cavity of Common myna Acridotheres tristis of District Larkana, Sindh, Pakistan. In all, 35 nematodes (?) were recorded. Present nematodes reflect diversification from their congeners in the following charaters viz: body measurement, morphological shape, shape of tridents, shape of spicules and caudal papillae. On the basis of such morpho-metrical changes in this species; D. yusufi treated as a new species. This new species is dedicated in the honor of one of the renowned Best Biologist Prof: Dr. S. M Yusuf Shaikh.