FIRST RECORD OF BRACHYLECITHUM-TRANSVERSOGENITALIS SILVESTRIS (SEMENOV, 1927) (DICROCOELIIDAE, TREMATODA) FROM THE SLOVAK-REPUBLIC

New data on the biometric and morphological variability of Brachylecit hum transversogenitalis silvestris (Semenov, 1927) are presented after examination of 33 stained specimens of this subspecies isolated in Sl ovakia in the spring of 1962 from the host Caprimulgus europeus L. The characteristic features include: 1) body size ranging 2.6-6.21 x 0.23 -0.66, 2) ventral sucker, 0.14-0.32 x 0.18-0.34 mm, relatively small t o the trematode width in the region of anterior testis, 3) position of transversally and longitudinally oval gonads, with ovary in most spec imens lying in mid-portion of body. The need of clarifying the structu re of digestive tract is discussed, which is indistinct in the dicroco eliids obtained and vaguely, described in the literature. Without unde rstanding the variability of taxa close to B. transversogenitalis silv estris (Semenov) its frequent synonymy with B. transversogenitalis (La yman, 1922) is disputable.