Dr. Murai Éva - Gubányi András szerk.: Parasitologia Hungarica 28. (Budapest, 1995)

mounts (for the elucidation of the structure of internal organs). One of the female specimens was dissected in order to enable a more detailed study of the internal organs (lemnisci, genital tract, eggs and acanthors). The specimens were studied by an Amplival microscope. The drawings were made with a drawing tube. The measurements are given in millimetres. RESULTS Apororhynchus silesiacus Okulewicz and Maruszewski, 1980 Description of male (Fig. 1.): Total length 3.21-3.51. Trunk almost conical, with length 2.0-2.31 and maximum width 0.80-1.05 at middle. Main longitudinal vessels (dorsal and ventral) connected by numerous transverse anastomoses. Giant nuclei in tegument 27-28 in number, arranged mainly along longitudinal vessels. Nuclei ameboid, with dimensions 0.050-0.105 x 0.050-0.088. Prorboscis spherical, with length 0.90-1.10 and width 1.70. Proboscis armed with 36-40 irregular spiral or fan-shaped rows, 10 (12) hooks in each row (? some hooks probably on invaginated posterior part of proboscis). Each hook situated in deep and narrow pit-like depression. Blades of hooks never reach outer margin of proboscis wall. Dimensions of hooks (blade lengthxroot length) 0.010-0.0125x0.020-0.025. Neck (everted in one specimen only) with length 0.044 and width 0.375. Collar (everted in one specimen) armed with 1-A circular rows of small spines. Lemnisci not clearly seen and, therefore, correct number of giant nuclei in them uncertain. Giant nuclei with dimensions (length x width) 0.0975^0.1075x0.0625-0.088. Testes oval, situated in tandem and overlapping one another, with dimensions 0.80x0.60-0.65. Cement glands oval to dropshaped, 8 in number, situated in compact group, extending to level of posterior testis. Dimensions of cement glands group (lengthxwidth) 0.20-0.35x0.35. Ducts of cement glands 0.35-0.46 long. Saeftigen's pouch ovoid, 0.45-0.50 long and 0.25 wide. Genital bursa invaginated, 0.45-0.55 long. Description of female (Fig. 2.): Trunk truncate, with length 1.65-2.15 (? deformed) and width 0.90 1.08. Giant nuclei in tegument 20-28 in number, ameboid, with dimensions (lengthxwidth) 0.0675-0.133x0.0475-0.0825. Proboscis spherical, with length 1.11-2.10 and width 1.74-2.49. Armament of proboscides not clearly seen due to numerous eggs within them. Proboscis receptacle reduced. Lemnisci long, bandlike, 1.25-2.61 long and 0.13-0.19 wide. Giant nuclei in lemnisci oval, 13 in number per lemniscus; dimensions of nuclei in lemnisci (lengthxwidth) 0.0575-0.1325x0.045-0.1 13. Length of genital tract 0.668: uterine bell 0.206 long, uterus 0.231 long, and vagina 0.231 long. Ligament sacs and proboscis filled with eggs. Eggs elliptical, without polar prolongations, 0.06750.0750 long and 0.030-0.0375 wide (measurements taken from isolated eggs out of the trunk). Acanthors torpedo- or mushroom-shaped, spinose, bearing anterior rosette of numerous embryonic hooks. Dimensions of acanthors: length 0.07500.0875, width at level of anterior enlarged part 0.0275-0.030, width at level of constriction 0.0225-0.025, maximum width of anterior part of acanthor 0.02250.035.