Dr. Murai Éva szerk.: Parasitologia Hungarica 26. (Budapest, 1993)

RESULTS AND DISCUSSION During the survey 2 Diplozoon and 3 Paradiplozoon species in 5 different hosts were found. The helminth parasites obtained from the gills and their hosts are listed below. Diplozoon paradoxum Nordman, 1832 Host: Abramis brama Diplozoon scardinii Komarova, 1966 Host: Scardinius erythrophthalmus Measurements (in pm): length of body: proximal part: 2844; distal part: 1230; width: 861; number of plicas: 9; width of clamp 1:

80-82; width of clamps II-IV: 105-107; length of central hook: 22. Paradiplozoon albumi Khotenovsky, 1982 Host: Alburnus alburnus Measurements (in ^wm): length of body: proximal part: 1027; distal part: 711; width: 458; number of plicae: 11; width of clamp 1:

80; width of clamps II-IV: 100-107; length of central hook: 20; oral sucker: 30 x 32; pharynx: 40 x 40. Paradiplozoon bliccae Reichenbach-Klinke, 1961 Host: Blicca bjoerkna Measurements (in pm): length of body: proximal part: 2054-2100; distal part: 1216-1301; width: 984; number of plicae: 21; width of clamp 1:

100-106; width of clamps II-IV: 135-145; length of central hook: 22.5. Fig.l. Paradiplozoon bliccae (kdchenbach-Klinke, 1961) Clamp and central hook. (Original, É. Hajdú)