Pseudamphistomum truncatum (Rudolphi, 1819) Lühe, 1909


This parasite has been described from the bile ducts of cats in Europe and India. The small trematode, 2 mm long, is found within the bile ducts. The parasite appears very similar to species of Metorchis and Parametorchis with the major difference being that the posterior end of the body appears abbreviated, "truncated," producing the appearance of a posterior sucking disk; hence the name meaning false amphistome. The life cycle was examined, and it was shown that it required a piscine intermediate host (Ciurea I. 1917. Die Auffindung der Larven von Opisthorchisfelineus, Pseudamphistomumdanubiense und Metorchisalbidus und die morphologische Entwicklungung diser Larven zu den geschlechtsreifen Würmer. Ztschr Infk Haust 18:301-333). There has been very little published on the disease or pathology induced by these worms.