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

suckers and double circle of hooks. Number of hooks 51, 0.018 mm the small ones and 0.022 mm the largests. The larval form of T. tenuicollis was detected from the intermediate host Spalax leucodon by POPESCU et al. (1974). The definitive hosts of this species are the waesel and other Mustelidae species; its larva can be found in various small mammal species in their C Fig. 7: Larva of Taenia tenuicollis Rudolphi, 1819 Rostellar' hooks in various position propagation area. MURAI and TENORA (1973 b) dealt with the morphology of Taeni

a species living in small mammal species and in carnivores. Hydatigera taeniaeformis (Batsch, 1786) larval stage (Fig. 8) (Strobilocercus fasciolaris Rudolphi, 1808) Intermediate host: Mus musculus spicilegus. - Location: liver-. Cyst spherical 6-10 mm in diameter situated on the liver surface oi'inter-mediate host. Length of larva 40-60 mm. Scolex with double circle of hooks. Number of hooks 36; Fig. 8: Larva of Hydatigera taeniaeformis (Batsch, 1786) Rostellar hooks length of the small hooks 0. 258-0. 268 mm, of the large ones 0. 400-0. 455 mm. The larval form of H. taeniaeformis has been described from various areas of Roumania from numerous small mammal species by CHIRIAC and HAMAR (1966), POPESCU and BARBU (1971), and POPESCU et al. (1974). Its hosts are the cat and the wild cat. The larve is common in the whole of Europe.