Dr. Murai Éva szerk.: Parasitologia Hungarica 18. (Budapest, 1985)
On the basis of main their morphological characteristics we classified our specimens as Qu. clariadis . Minor differences between our findings and the original description concern the shape of the ventral bar and the copulatory organ. In our preparations the shape of the ventral bar is about the same as depicted by HA KY (1968) for Qu. kobiensis . The copulatory organ has a well-developed and differentiated accessory piece, more over a solid vagina was detected in the fully mature specimens. In the less developed, juvenile forms, however, a sclerotized vagina was not observable, and the structure of the copulatory organ resembled the ones depicted by PAPERNA (1961). We suppose that the specimens studied by PAPERNA were relatively young stages, and the redescription of Qu. clariadis by us reflects the species characteristics more precisely. Gyrodactylus sp. I. - (Fig. 5) Host: Clarias_lazera Locality: Bahr Mouis Location: gill filaments Number of specimens studied: 1 Description: Body length 1.0 mm, width 0. 3 mm. Anchors 77 long. Length of basal part 52, that of the root 30. Point 27 long. Ventral bar with two lateral processes, 19 long and 6. 3 wide. Dorsal bar 18 long and 2 wide. Hooks 38 long with reflexed hooklets measuring 8 in length. This species seems to be identical with Gyrodactylus rysavyi Ergens, 1973. Gyrodactylus sp. II. - (Fig. 6) Host: Çlarias_laz_era Locality: Bahr Mouis Location: gill filaments Number of specimens studied: 2 Description: Body length 0.6-0. 9 mm, width 0.10-0. 11 mm. Anchors 41-41. 5, their basal part 29-29.5, root 14-16, point 19.5-22 long. Ventral bar 12.0-12. 5 long and 5 wide. Dorsal bar not observable. Hooks 22. 7-24. 5 long with hooklets of 8 in length. This species seems to be identical with Gyrodactylus groschafti Ergens, 1973. MOLNÁR, K. — MOSSALAM, I.: Monogenetikus mételyek nílusi halakból Egyiptomban A szerzők Egyiptomban nilusi halakon végzett vizsgálataik nyomán négy Monogenea-fajt mutattak ki. Ezek közül a közleményben az Alej3^e_s_déntex nevü halról gyűjtött Jainus nursei és a nevü halról gyűjtött Quadriacanthus clariadis esetében részletes újraleírást adnak. A Ç^ajias^azera-n talált két Gyrodactylusfajt közelebbről nem határozták meg, bár azok méreteik és a mellékelt fotók alapján valószínűleg a G. rysavyi és G. groschafti fajokkal azonosak. Legend to the figures: Fig. 3. a and b. Microphotographs of the haptoral elements of Qu. clariadis Fig. 4. Microphotograph of the copulatory organ of Qu. clariadis Fig. 5. Microphotograph of the anchors of Gyrodactylus sp. I. Fig. 6. Microphotograph of the anchors of Gyrodactylus sp. II.
