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

MATERIALS AND METHODS Most of the cestodes included in the present study were collected during the period 1982-1986 in various parts of Bulgaria. Cestodes were relaxed in water, fixed and stained in iron acetocarmine (GEORGIEV et al., 1986) or lactic carmine (REICHENOW et al., 1969), preserved in 70% alcohol, dehydrated in alcohol solutions with increasing concentrations, cleared in eugenole and mounted in Canada balsam. The specimens are deposited in the Collection of the Central Laboratory of Helminthology, Sofia. Metric da*ta were processed statistically and the range (min-max), the mean (x), the standard deviation (SD) and the coefficient of variation (CV) were calculated for every character. All the measurements in the text are given in millimetres. RESULTS In the course of the investigations, four species of the genus Anoplocephaloides were found in Bulgarian rodents. The data are presented below. Anoplocephaloides dentata (Galli-Valerio, 1905) Baer, 1923 (Figs 1-6) Hosts

*: Mi

Çjr^h^_rnvalis Martins, 1842, M. jubjter_raneus de Selys-Longchamps, 1836, M, £uentheri_ Danford et Alston, 1880; besides these voles, earlier the species was occasionally found in ÇleW^j_onom^s_^^rej^us_Schreber, 1780, _M._ary_alis Pallas, 1778, Aj>odjsjnus flayicoUis Melchior, 1884, and Sp_ajax_leucjodon Nordmann, 1840 (GENOV, 1984). Habitat: terminal part of the small intestine, caecum. Material studied: from M_. jiiyaUs - No. 8096-2 (1 specimen), No.

8151-1, 2 (2 spec.), cirque Bajouvy Doupky (Pirin Mts.), 2-7.7. 1983; No. 8412 (1 spec), cirque Razlozhky Sukhodol (Pirin Mts.), 4.11. 1983; No. 8424 (1 spec), cirque Bajouvy Doupky, 5. 11. 1983; No. 9375-1 (4 spec. ), No. 9379-4, 5 (2 spec. ), cirque Golyam Kazan (Pirin Mts. ), 5. 7. 1984; No. 9838 (3 spec ), No. 9948 (3 spec. ), cirque Bajouvy Doupky (Pirin Mts. ), 24-29. 10.1984; No.10528 (4 spec. ), No. 10547 (1 spec. ), No. 10551 (4 spec ), cirque Golyam Kazan (Pirin Mts. ), 4-5. 7. 1985; No. 11440-1,2,3, 4 (4 spec ), No. 11441-1 (1 spec. ), No. 11442-1,2 (2 spec. ), No. 11785-1,2 (2 spec), No. 11787- 1, 7 (2 spec), cirque Golyam Kazan (Pirin Mts. ), 26.6,- 1. 7. 1986; No. 11866 (1 spec), cirque Bajouvy Doupky (Pirin Mts. ), 1,7. 1986; from^_sjibt^rraneus_- No, 9884 (2 spec. ), No. 9898 (3 spec). No. 9905 (1 spec. ), No. 9957 (1 spec), No. 9960 (1 spec), No. 9961 (1 spec.), cirque Bajouvy Doupky (Pirin Mts.), 26-30. 10.3984; No. 11798-1 (1 spec. ). No. 11799-2 (1 spec. ), 11800-1,2 (2 spec). No. 11801-10, 11 (2 spec. ), cirque Vasilashky (Pirin Mts. ), 28. 6. 1986; from M.jgjaenjheri - No. 8727-1,2,3 (4 spec), Lozenec (Bourgas district), 21.4.1984. DESCRIPTION (based on specimens from jmenj;h^ri;_ for measurements see Table 1): Strobila short, wedge-shaped, 2. 2-2. 4 times longer than wide. Maximum width at early gravid proglottides. Scolex small, round. Suckers with well-developed musculature. Neck weakly outlined; differentiation of proglottides beginning just next to scolex. Proglottides craspedote, much wider than long: ratio length/width of mature proglottides 1; 8. 2-10. 5, of postmature - 1:7-10, of gravid - 1:2.8-7.7. Genital pores unilateral, situated on the middle of the lateral margin of proglottides; small, with slightly developed musculature. The first indication of the genitalia visible in 3-4th proglottids; male and female organs develop simultaneously; both genital systems fully developed in 8-11th proglottis. Ventral excretory ^Nomenclature of host species are given according to SOKOLOV's system (1977).