Dr. Murai Éva szerk.: Parasitologia Hungarica 23. (Budapest, 1990)

DISCUSSION The genus Skrjabinoplanorchis was described by PETROV and MERKUSCHEVA (1963) in the U.S.S.R. and now it comprises six species: S. vigisi PETROV et MERKUSCHEVA, 1963; S. morosovi VARENOV, 1965; S. dogieli SEMENOV, 1966; S. obensis FEDEROV, 1976; S. skrjabini (KADENAZII, 1960); and S. ondatrae (ANDREJKO, 1965). These species are parasitic in the liver (biliary ducts) or in the intestine in various species of small rodents including muskrats. S. ondatrae was described for the first time under the name Plagiorchis ondatrae ANDREJKO, 1965 from rodents including muskrats in Moldavia. It was transferred to the genus Skrjabinoplagiorchis by KRASNOLOBOVA (1977). Our finding is a new locality record, and muskrats have supposedly become parasitized from stocks of small rodents living in their environment. The genus Troglotrema ODHNER, 1914 comprises two species: T. acutum (LEUCKART, 1842), parasitic in the frontal and ethmoidal sinuses of some carnivorous mammals in Europe, and T. srebarni, parasitic in muskrats found in Bulgaria. This is a new locality record and the occurrence of troglotrematid species in muskrat indicates the meat-eating behaviour of the muskrat, provided that T. srebarni has the same lifecycle pattern as T. acutum has. SEY, O.: Skrjabinoplagiorchis ondatrae (Andrejko, 1965) (Trematoda: Plagiorchiidae) és Troglotrema srebarni Genov, 1964 (Trematoda: Troglotrematidae) mételyfajok előfordulása magyarországi pézs mapockokban A Moldáviában 1965-ben leírt S. ondatrae és a Bulgáriában 1964-ben felfedezett T. srebarni mételyfajokat a szerző 200 pézsmapocok egyed parazitológiai vizsgálata alapján a Fertő-tó és a Balaton környékén élő Ondatra populációkban is megtalálta; azok eredeti ábrákkal illusztrált morfológiai jellemzését közli. 37