Dr. Murai Éva szerk.: Parasitologia Hungarica 11. (Budapest, 1978)
Parasit. Hung. 11. 1978 Five New Eimeria Species (Protozoa : G>ccidia) from Freshwater Fishes indigenous in Hungary Dr. Kálmán MOLNÁR Veterinary Research Institute Hungarian Academy of Sciences, Budapest "Five new Eimeria species (Protozoa: Coccidia) from fresh-water fishes indigenous in Hungary" - Molnár, K. - Parasit. Hung. 11. 5-11. 1978. ABSTRACT. Eimeria kassaii sp. n. , E. matskasii sp. n., E. meszarosi sp. n. from Umbra krameri, E. muraiae sp. n. from Misgurnus fossilis, and E. nemethi from Alburnus alburnus, as well as unsporulated oocysts of a sixth eimerian species found in Misgurnus fossilis are described. The occurrence of some Eiroeria species in fish hosts indigenous in Hungary was reported earlier (PELLÉRDY and MOLNÁR, 1968, 1971; MOLNÁR and PELLÉRDY, 1970); among the species then found, Eimeria scardinii and E.acerinae were described as new ones. In the meantime further oocysts, not belonging to any known species, have been found in fish; descriptions and depictions of these are presented in this paper. Material and Method The oocysts were collected partly by regular examination of fish species not previously studied for infection byEimeriae, partly as concurrent stages encountered in methodical studies of E. leucisci oocysts. The hosts were taken from pools, swamps and rivers in different parts of Hungary, and were transported alive to the laboratory, where they were examined either immediately, or after a few days' aquary keeping. After extermination of the hosts, impression smears were secured from several organs and intestinal contents, intestinal mucus and mucosal scrapings were examined for coccidia (a detailed methodical description is in an other article; MOLNÁR, 1977). The oocysts collected from the hosts were studied microscopically (NF Zeiss microscope) under a coverslip, by immersion technique. The oocyst measurements were determined on at least 30 stages per species, and drawings were prepared. All measurements included in the descriptions are given in )im. Recuits and Discussion Eimeria kassaii sp. n. (Fig. 1) Diagnosis. - Oocyst spherical, 11.7 (11.5-12.0) in diameter. Cyst wall smooth, colorless, composed of a single, very thin layer (0.1). Sporocyst compact, in contact with the oocyst wall. Oocyst residuum, micropyle and polar granule absent. Sporocysts coffeebean-shaped, measuring 10. 5 (10. 2-11. 0) in length, 6. 2 (6. 0-6. 5) in width and 5.2(4.9-5.5) in depth. Sporocyst wall 0.1 thick. Stieda body absent. Sporocysts are parallel, usually arranged so that two pairs of sporocysts cross each other. Sporocyst with two vermiform sporozoites, which are arranged head to tail. One end of sporozoits reflexed. Measurements of sporozoites without reflexed portion 9. 6 (9. 3-10.1) x 2.0 (1.9-2.1). Sporozoites have each a refractile globule. Sporocyst residuum finely granulated, round or ellipsoid; measuring 4.0-5.0 x 4. 5-5. 5. Sporulation of the oocyst was completed in the gut of the host.
