Dr. Murai Éva szerk.: Parasitologia Hungarica 21. (Budapest, 1988)

The new species is named in honour of Prof. F. TENORA (Brno) and Dr. E. MURAI (Buda­pest) who contributed so much to the development of the recent systematics of the European species of Anoplocephalidae. The samples of this species from M^jiiyjúis and ]VL_s^bterraiieus_(Table 4), in spite of their considerable similarity, revealed some significant differences. For example, although the ranges of the number of testes, the length of the cirrus sac and vagina overlap, the means of these characters are statistically different. It is very likely that two isolated populations of cestodes parasitize the two hosts living in quite different biotopes. If this is right, the ex­tent of morphological divergence between them is not sufficient enough to characterize them as different taxa. Anoplocephaloides (?) sp. (Figs 22-27) Host: Mi Çilotujj_myalis Martins, 1842 Habitat: small intestine. Material studied: No. 10547 (1 spec. ), cirque Golyam Kazan (Pirin Mts.), 5. 7. 1985. DESCRIPTION: Length of not fully developed strobila (last proglottides postmature), consist­ing of 70 proglottides - 18.85. Maximum width at postmature proglottides - 1. 39. Scolex 0.600 in diameter. Suckers with developed musculature, with diameter 0. 275-0.294 (n=4). Aporal part of proglottides acraspedote; poral part craspedote, with genital pore opened on posterior angle of lateral margin. Ratio length/width in mature proglottides 1: 3. 4-4. 1, in postmature proglottides - 1:3.3-3.7. Ventral excretory canals 0.025 wide, with anastomo­ses. Dorsal excretory canals seen only in poral part, 0.02 5 wide. Genital ducts dorsal to excretory canals. Testes 43-46 (n=4), situated in aporal 1/3 of mature proglottides (in aporal lateral field and in middle field aporally to ovary). Cirrus sac is initially folded and situated in the protrud- . ing part of the proglottis. Further development of cirrus sac is a result of its unfolding; in first proglottis where cirrus sac is fully unfolded its measurements 0. 338x0.094; in post­mature proglottides cirrus sac with measurements 0.269-0. 331x0. 125-0. 137 (n=6). Internal seminal vesicle beginning its development in proglottides with folded cirrus sac where its measurements are 0.070-0. 132 x0.062-0.068 (n=4); in postmature proglottides fills whole entire volume of cirrus sac, with dimensions 0. 218-0. 312x 0. 088-0. 131 (n=5). External sem­inal vesicle with maximum measurements in postmature proglottides - 0. 306-0. 375x0.030­0.035 (n=4). Cirrus armed, when fully evaginated 0.080-0.085 (n=2) long and 0.020 (n = 2) wide. Vitellarium situated medially, just to posterior margin of proglottis; two-winged, aporal wing larger than poral; its width from 0. 250 in young mature proglottides to 0. 331 in fully developed mature proglottides and gradually decreasing in postmature ones. Ovary lobed; its width from 0.250 in young proglottides to 0. 500 in fully developed ones. Seminal recepta­cle with maximum measurements in postmature proglottides - 0. 265x 0. 106. Uterus lobed, with many anterior and posterior sacculations; it fills almost whole postmature proglottides extending across excretory canals. Remarks The specimen studied possesses some morphological characteristics which distinguish it from all the other species of Anoplocephalidae parasitizing rodents. We place conditionally it in the genus Anoplocephaloides , mainly on the basis of the unilateral position of the genital pores and the small dimensions of the strobila. The quality of the slide studied does not al­low the early stages of the uterus development to be described. The pattern of the cirrus sac development in this cestode is very peculiar and has not been found in any other species of the family. It is very probable that a new genus should be erected for this species. We re­frain from describing it as a new taxon because of the presence of only one not well-preserv­ed specimen.

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