Dr. Kassai Tibor - Dr. Murai Éva szerk.: Parasitologia Hungarica 7. (Budapest, 1974)

Material and Methods A total of 570 small rodents belonging to the subfamily Microtinae were captured and examined for helminths in the course of field work by the staff of parasitologists of the Zoological Department, Hungarian Natural History Museum in 1963-72: Mr. I. MATSKÁSI, Mr. P.

MÉSZÁROS, Mrs. É. MURAI the author, Mr. I.

SZABÓ and Mrs. E. VAJDA, as well as by Mr. M

. JANISCH, Mr. Gy

. TOPÁL, Mr. Gy. SIPOS and Mr. P. HAAS. The material of the First Hungarian Parasitological Expedition was put at our disposal by Professor T. KOBULEJ. Helminths living in voles were also received from G. NECHAY, laboratory director (Tanakajd) for identification . Collectings were made in different parts of Hungary, preponderantly in the hilly regions. The following Microtinae-species were dissected: Microtus arvalis, 197 exemplars, M. oeconomus, 21 ex., M.agrestis, 6 ex., Pitymys subterraneus, 44 ex., Clethrionomys glareolus, 295 ex., Ondatra zibethica, 5 ex., Arvicola terrestris, 2 ex. The last species was not infected with helminths. Those worms collected from the 21 exemplars of M. oeconomus, were studied by EDELÉNYI (1966), who found also one cestode species, Aprostatandrya macrocephala

, from the locality Kisbalaton. From the other vole species 3000 tapeworm specimens were collected representing to 15 species. Tapeworms were fixed' in 10 per cent hot formaline or in 70 per cent alcohol. The totàl-preparates have been stained by hydrochloric acidic-carmine, the sections stained by haematoxylineeosin.The hooklets and eggs have been studied in BERLESE fluid. Total-preparates were made from 320 specimens of tapeworms, and several exemplars from each species were studied in sections. Systematics Fifteen cestode species occur in voles in Hungary, 7 in adult and 8 in larval forms (Table 1).