A PECULIAR FINDING OF TREMATODES OF THE GENUS DICROCOELIUM (DICROCOELIDAE, TREMATODA) FROM TURDUS-PILARIS L (PASSERIFORMES) IN SLOVAKIA

Data are presented on eighteen trematodes Dicrocoelium dendriticum (Ru dolphi, 1819) ? from the host Turdus pilaris L. in eastern Slovakia. T he trematodes are 4.94-8.55 x 1.36-1.76 mm large. Oral sucker is up to 312-406 x 292-381 mu m and acetabulum 292-465 x 358-530 mu m. Testes situated aslant in juxtaposition or tandem. Genital opening in the are a of intestinal bifurcation or anterior to the intestine. Follicles of vitelline branches commence in the mid-portion of posterior testis or as far as behind the ovary. Within the organophenote available, a spe cimen was detected having intestines abnormally connected to form an i ntestinal arch in the posterior portion of the body. The discussion po stulates the question of D. dendriticum as a possible parasite of bird s and deals with the taxonomy of some species of the genus Dicrocoeliu m Dujardin, 1845 parasitizing this group of hosts.