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

VAN STRYDONCK, D. (1965): Trematodes of the digestive system of wild birds in Belgium. - Ann. Soc

. belge Méd . trop., 45. 679-684. YAMAGUTI, S. (1935): Studies on the helminth fauna of Japan. Trematodes of birds, III. - Jap. J. Zool

., 6. 159182 . Z

DARSKA

, Z. (1966): Der Entwicklungszyklus des Trematoden Plagiorchis laricola (Skrjabin, 1924). - Vestn.C3. spol

. zool., 30. 179-184. Received: 4. 2. 1974. Dr. MATSKÁSI, I. Veterinary Research Instute of the Hungarian Academy of Sciences 1143 Budapest, Hungária krt

. 21.