Dr. Murai Éva szerk.: Parasitologia Hungarica 19. (Budapest, 1986)

and HENTTONEN (1985), on page 411 the size of the scolex of the species P. kalelai is incorrect - instead of 0. 53-1. 16 it should read 0. 5-0, 7 in diameter... 24. Paranoplocephala sp. (Tenora, Haukisalmi and Henttonen, Í985) n. • comb. Syn. : ? Anoplocephaloides sp. Tenora, Haukisalmi and Henttonen, 1985. Original host: Clejhriqnornys rufocanus, Finland. - ' . Material deposited in the Zoological Museum, University of Helsinki. • Comments: Allocation of this species to a genus is very difficult. Fig. 12 in the study of TENORA, HAUKISALMI and HENTTONEN (1985) shows the network-like uterus in the gravid segments. The external morphology of this species remotely resembles the species P. campestris and individuals which had been incorrectly identified in the study of TENORA and MURAI (1980) as P. blanchardi (for more details, see the study of TENORA, MURAI and VAUCHER, 1985). The internal morphology of this species shows that it is probably a new species of the genus Paranocephala. 25. Paranoplocephala janickii Tenora, Murai et Vaucher, 198 5. Original host: Micj^t_u_s_arvalis . Holotype: deposited in the Hungarian Natural History Museum, Budapest, No. 6722. Comments: This species has a very short vagina and belongs to species related to P. blanchardi. From this species it fundamentally differs in the distribution of the testes which are both in the poral and aporal part of the segments. It cannot be excluded that this species had previously been incorrectly Identified as A. macrocephala (compare ERHARDOVÁ 19 56, ZARNOWSKI, 1955- 1956, Fig. 2, c). Criteria for identification of the valid species in the genus Paranoplocephala The opinions of authors on criteria for the identification of bona species in the genus Parano plocephala are not identical. We have dealt with this problem in detail in our study of 1986 (see TENORA, MURAI and VAUCHER, 1986). In addition, it must be said that especially in earlier descriptions data are often missing which, at the present time, are.important (e.g. exact number of testes, length of the cirrus sac and .length of the vagina, sometimes even the character of the opening of the reproductive organs, etc.). It was also found that the so-called representative characters do not, in fact, exist (e.g. the prostatic gland) and that it wasmerely mistaken for other already known organs (e.g. the vesicula seminalis externa, compare in RAUSCH 1976, TENORA, MURAI and VAUCHER, 1984). The complexity of this situation is also some species have been found in the original hosts only once, in many species we do not know the extent of the variability not only of their organs, but also the variability of the morphology of thé segments of the strobila. Only in individual cases is the rate of development of the uterus and/or development of the uterus as such known, hardly no facts are known about the number of mature segments or total number of segments. The greatest disadvantage is probably the fact that virtually no intermediate hosts of tapeworms of the genus Paranoplocephala are known, so that there are hardly any experimental studies which could explain the developmental cycles (see SMIRNOVA and KONTRIMAVICHUS, 1977). On the basis of the authors' own experiences, according to available descriptions of the individual species and by investigating n any of these species, the present authors classified the tapeworms of the genus Paranoplocephala into several groups (see Table 1). The following comments to this table are added: The species whose description distinctly differs from all the other tapeworms of the genus Paranoplocephala

, seems to be P. montana. Well differentiated are also tapeworm species