Abstract
Oesophagostomum rafiae sp.n is being reported from the small intestine in goat (Capra hircus Linn. 1758) from Karachi. The new species is characterized by having medium sized worms, male smaller and thinner than females, which are stouter and larger in size. Mouth directed straight forward, cephalic vesicle well developed. A single leaf crown is present containing 15-20 cuticular elements in both sexes. Oesophageal funnel dilated and contains facets. Bursa copulatrix well developed, gubernaculums not visible. Vulva at some distance, above anal opening, Vagina muscular directed backward, female tail tapering, short, pointed. Eggs small, globular or subglobular.
