Dr. Éva Murai szerk.: Miscellanea Zoologica Hungarica 1. 1982 (Budapest, 1982)
Murai, É.: Taeniid species in Hungary (Cestoda: Taeniidae). II. Larval stages of taeniids parasitizing rodents and lagomorphs
Intermediate hosts in Hungary were found among members of the families Microtidae and Cricetidae, and only one caBe was found in a murid Bpecies ( Apodemus flavicollis ), of which over 2500 specimens have been examined. The name of the larva "Cysticercus talpae" is indicative of its occurrence in the mole as intermediate host, but no infestation found in Talpa europaea Linnaeus, 1758. Adult specimens were found in Musteia nivalis (Linnaeus, 1766) definitive host in Hungary (MURAI &TENORA, 1973, MÉSZÁROS et al., 1981). Note. DOLLFUS (1961), ABULADZE (1964), TENORA & VANEK (1969) listed arguments in favour of the use of the name Taenia tenuicollis Rudolphi, 1819, whereas FREEMAN (1956) and VERSTER (1969) opted for the name T. mustelae Gmelin, 1780 (the debate on the nomenclature is discussed in MURAI & TENORA, 1973). American authors (LOCKER, 1955, FREEMAN, 1956, RAUSCH, 1977) published numerous data on Taenia mustelae and its larval forms. In their material "polycephalic", "multiscolex" larvae and "coenurus like" larva cysts were often found in various intermediate hosts species infested under natural and laboratory experimental conditions (LOCKER, p. 52, FREEMAN, p. 231, RAUSCH, p. 363). In small rodents (lemming, voles) "uniBcolex" larvae were more common, in musk-rats and laboratory infestations there was a definite tendency for the formation of polycephalic cysts. In both larval and adult T. mustelae (Gmelin, 1790) Freeman, 1956 from mustelid definitive hosts, the shape of the hooks is very much like that of T. tenuicollis Rudolphi, 1819 in Hungary. The scolex in both specieB is arranged in two rows composed of hooks of similar shape and size. The base of the hook Is somewhat shorter then its length. The size of the hooks is somewhat smaller in the North-American material than in Hungary (in Hungary 0.018-0.023, sometimes 0.025 mm; in America 0.012-0.018, normally 0.015-0.016 mm). The number of hooks showed greater variation in North America than in this study (in Hungary 43 to 58; in the North American material 40 to 65, one specimen in FREEMAN'S material with 84 hooks). VERSTER (1969) noted differences in larval development in American and European material (VAHL's material from Switzerland), Because there is difference in the size of hooks, this may also be considered as further supporting evidence for the view that the "small-hooked" Taenia species from mustelids in Europa and North America represent two different species. 5. Multiceps serlalis (Gervais, 1847) Stiles & Stevenson, 1905 Name of larva: Coenurus serialiB Gervais, 1847. Intermediate hosts: Lepus europaeus. - Localization: on the surface of sceletal muscles (i.e. musculus masBeter). - Extensity: 1.3%. - Intensity: 1-3 coenurus bladder. Collection data of the Infested intermediate host specimens: Lepus europaeus - County Bács-Kiskun: Bugac 01/02/66 (1), Kunbaja 28/04/73 (1); County Pest: Dabaa 01/05/74 (1), Vecsés 1972 (1); County Szolnok: Jászfényszaru 15/12/75 (1) = 5 cases. Characterization of Coenurus serialle Coenurus bladders were found twice in the musculus masseter, twice on the surface of the thigh and once each in the abdominal cavity, on the inner musculature of the vertebral column, on the surface of the layer of connective tissue enclosing the muscles (Fig. 2). The translucent coenurus bladders are filled with liquid and characterized by endogenous and exogenous daugther bladders varying in size from 12x24 mm to 15x34 mm. On the inner and upper surface of the coenurus bladder and the endogenous daugther bladders, in fibrouB capsules without pedicles are arranged several heads in rows. The number of invaginated scoleces per bladder vary from 50 to 180. The size of the capsule is 1x2 mm, diameter of the scolex 1 mm, that of the rostellum ranging from 0.30 to 0.32 mm, that of the suckers varying from 0.22 to 0.24 mm. The rostellum is armed with hooks in two rows different in size and shape (Figs 20, 21). The number of hookB vary from 28 to 32, length of the larger ones 0.152 to 0.184 mm (modal value 0.165 mm), of the smaller ones 0.099 to 0.124 mm (modal value 0.118). According to literature data, the dfinitive host for the Bpecies is the domestic dog. No adults of Multiceps serialis have been found so far in Hungary. Notes. The larval form corresponds morphologically with the data from the literature (ABULADZE, 1964, HALL, 1910, PARONA, 1902, VERSTER, 1969). No exact data are available for the frequency of its occurrence in Hungary, since often only the inner organs of the collected hares were presented for examination.
