Dr. Holló Ferenc szerk.: Parasitologia Hungarica 4. (Budapest, 1971)

Echinostoma revolutum is a cosmopolitan species, a parasite of reptiles, birds and mammals. In Hungary it has been found by EDELÉNYI in the appendix and small intestine of ducks (Anas platyrhyncha)

, and SEY in the intestine of the muskrat(Ondatra zibethica). The hamster (Cricetus cricetus) is a new host for the parasite. Isthmlophora melis (Schrank, 1788) (Pig. 3) Host: Rattus norvegicus - 2 exemplars Localisation: small intestine Locality: Agárd, Pákozd Intensity;

2-14 examples The morphology of the head collar can be seen on Pig. 4 The measurements of the collected exemplars correspond with those described by EDELÉFYI and SZABÓ (1963) from the otter (Butra lutra) and the ermine (Mustela erminea). KOTLÁN (1961) lists this fluke under the name - Euparyphium suinum

. Ciurea, 1921 from the pig (in the Transdanubia). SEY (1965) lists from the Mêles mêles. Lecithodendriidae Odhner, 1911 Cephalotrema elasticum (Bregenzer, 1916) (Pig. 5, 6) Host: Clethrionomys glareolus - 1 exemplar Localisation: small intestine Locality: Bal atone sic só* (Bakony mts. ) Intensity: 4 exemplars Measurements: Length of body: 0.812-1.152; width: 0.494-0.496; oral sucker:0.102-0.118x0.102-0.118; pharynx: 0.057-0.

060x xO. 044-0.054; ventral sucker: 0.137x0.118-0.137; testes: 0.096-0.099x0.073-0.102 and 0.076-0.102x0.064-0.089; ovary: 0.083-0.121x0.054x0.083;

cirrus-sac: 0.384-0.416x0.096; eggs: 0.025x0.016. A small-sized trematode with an oval body. Tegument covered with spines. Oral sucker followed by muscular pharynx. In one examined specimen a very short praepharynx present

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Caecal bran-