L. Forró - É. Murai szerk.: Miscellanea Zoologica Hungarica 5. 1989 (Budapest, 1989)
Murai, É.: Ceratozetes gracilis (Michael, 1884) (Acari: Oribatida), an intermediate host of Vampirolepis asymmetrica (Janicki, 1904) (Cestoda: Hymenolepididae)
B) V. straminea in the mouse - Mus musculus spicílegus Petényi, 1882 (first record from Hungarian murids) Locality : Nagykovácsi, Buda Hills, 350 m a. s.l., 6 September, 1977 (No. 7602-HNHM); 1 December, 1980 (No. 9098-HNHM); 18 March, 1985 (No. 10 253-HNHM), collected by L. ZOMBORI. Localization: biliary duct and small intestine; old proglottides in the end part of intestine. Prevalence: 1.8% (in the Nagykovácsi population, among 176 mouse examined three were infested with V. straminea). Intensity: 1-3 specimens. Material fixed and preserved in 5% formalin, stained with alum-carmine or hydrochloric-carmine; rostellar hooks and eggs were studied in Berlese solution. Description: V. straminea specimens from both host species from Hungary show the following characters: Strobila 70- 120 mm long, 1.8-2 mm wide. Scolex 0. 19-0. 28 mm, four suckers 0. 070. 10 mm in diameter. Rostellar sac measures 0.1x0.18 mm, rostellum 0.06-0.07 mm in diameter, with one circle of cricetoid hooks. Number of hooks varies from 21 to 28, length of rostellar hooks 0.013-0.014 mm, at the base 0.014-0.016 mm (Figs 10and 11). The three testes situated triangularly. Cirrus has no spines on its surface. Ripe eggs ovoid 0.056x 0. 088 mm or spherical 0. 070 x 0. 080 mm, oncosphera 0.027x0.038 mm to 0.031x0.0 36 mm. Embryonal hooklets greater than rostellar hooks, 0.017-0.018 mm in length (Fig. 7 ), SYSTEMATICS The taxonomic status of the two Hymenolepis s.l. Weinland, 1858 species mentioned above has been changed several times in the last forty years (BAER and TENORA 1970; PROKOPIC 1970 and 1972; SPASSKY 1954). In the latest identification key for tapeworms (SCHMIDT, 1986) both Hymenolepis asymmetrica (Janicki, 1904) and H. straminea (Goeze, 1782), as well as H. microstoma (Dujardin, 1845) which morphologically identical with H. straminea (see BAER and TENORA 1970 and the new material from Hungary), are recorded in the genus Vampirolepis Spassky, 1954. We used this new nomenclature; and V. micro stoma (Dujardin, 1845) is considered as a synonym of V. straminea (Goeze, 1782). BAER and TENORA (1970), TENORA and MURAI7Ï970, 1972) redescribed both V. asym metrica and V. straminea. Based on our own material we elucidate the most important morphological differences between the two species. Not only the number and form of rostellar hooks but the cirrus morphology and the eggs are typical. The cysticercoid of both species are alike, the invaginated scolex and the rostellar hooks show the specific characters: - Number of rostellar hooks 18-24, length of hooks 0. 02 1-0. 023, at the base 0.0180. 020 mm V. asymmetrica - Number of rostellar hooks 21-28, length of hooks 0 . 0 1 3-0. 015, at the base 0.0140.016 mm . .' V. straminea In the adult worms: - Cirrus spinose; eggs spherical 0.045-0.065 mm in diameter; embryonal hooklets 0. 008-0. 010 mm in length V. asymmetrica - Cirrus withouth spines; eggs ovoid or spherical, 0.075-0.088 mm in diameter; embryonal hooklets 0,016-0.019 mm (longer than rostellar hooks) ... V. straminea NOTE. Both species have rostellar hooks from cricetoid type: handle is short. In other Vampirolepis species with hooks about 15-20 jum in length, the hooks are from fraternoid type, where the handle is the half of the hook-length.
