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Heterophyes heterophyes (von Siebold, 1852) Stiles and Hassall, 1900


Egypt, China, Japan, Indonesia, the Philippines, Middle East, Korea, Romania and Greece.Figure not available in preview mode


Heterophyes heterophyes (Figures III.16, III.17) inhabits the small intestine of the human in large numbers and also that of the rat, fox, dog, wolf, jackal and cat; it also lives in the black kite (Milvus migrans aegyptius) and a bat (Rhinolophus divosus acrotis) in the Yemen. It imparts a ‘coffee grounds’ appearance to the intestinal wall. It is pyriform, grey and very small, measuring 1–1.7 0.3–0.7 mm. The uterus forms a brown patch in the centre. The oral sucker is subterminal and the ventral sucker is three times the size of the oral sucker. The tegument is thickly set with quadrate scales measuring 5 4 μm. There is a short prepharynx and long oesophagus. The intestinal caeca extend to the posterior extremity, converging close to the excretory vesicle. The …