Dr. Murai Éva szerk.: Parasitologia Hungarica 12. (Budapest, 1979)

and 0.021 mm of length. Testes, 0.150 x 0.075-0.120 mm, form a triangle in young segments, but in mature segments one situated poral, two aporal in line. Cirrus spinose strongly developed, cirrus sac 0.235 x 0.070 mm. Seminal receptacle 0.400 x 0.100 mm. Eggs spherical, 0.045 by 0.050 mm. Oncosphere 0.025 x 0.034 mm; embryonal hooks 0.008 mm. This species has been detected in Roumania from the host Microtus agrestis by CHIRIAC and HAMAR (1966). Its most common host is M. agrestis, but can live on all Microtidae species. The morphology of this species is described in detail by TENORA and MURAI (1972). c Fig. 6: Hymenolepis asy mmetrica Janicki, 1904 A Scolex, B = Rostellar hooks; C Mature segments Larval form of Cestodes Taenia tenuicollis Rudolphi, 1819 - larval stage (Fig. 7) (Cysticercus talpa

e Rudolphi, 1819) Intermediate host: Microtus nivalis. - Location: liver. Oval Cysticercus 2 mm length. Scolex invaginated 0.400 mm in diameter, with four