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

one species. According to our opinion, typical for the species P. macrocephala are such individuals as given by DOUTHITT (1915) and RAUSCH (1948). We must fully agree with the opinion of RAUSCH (1976) that "

P. macrocephala is the least host-specific and the most variable morphologically, which suggests that it represents a complex of species" and that "The infection of experimental animals would seem to provide the best means to establish the limits of morphologicals variation and host-specificity in these cestodes" (RAUSCH 1976, page 553). In the key and in the table we give the main characters which distinguish the species P. mac rocephala from other related species. The question remains whether A. translucida is the synonym of P. mac

rocephala. 5. Paranoplocephala communis (Douthitt, 1915) Tenora, Murai et Vaucher, 1984. Syn. : Andrya communis Douthitt, 1915. Original host: Evoj;omys_^aj^erJ._g^lei, North America. Holotype: deposited in the Helminthological Collection of the U. S. National Museum

. Comments: The taxonomic position of this species is very vague. BAER (1927) considers it to be a synonym of the species A. primordialis. Similar statements can be found in the studies of RAUSCH and SCHILLER (1949), SPASSKY (1951), RAUSCH (1952, 1957). On the basis of comparisons of the original description and pictures of the species P. com munis with other species of the genus Paranoplocephala, we came to the conclusion that it is a species very closely related to P. macrocephala. However, it fundamentally differs from this species in its very short cirrus sac and markedly long vagina. With regard to the fact that since its original description this species has never been found again and that its description is incomplete from the viewpoint of present taxonomy, the species P. communis must be considered as a species inquirenda. 6. Paranoplocephala primordialis (Douthitt, 1915) Tenora, Murai et Vaucher, 1984. Syn. : Andrya primordialis Douthitt. 1915. Original host: Sciurus hudsonicus, North America. Neotype: deposited in the Helminthological Collection of the U.S. National Museum, No. 4780 1. Comm ents: At present there exists only little material of this species (see RAUSCH 1952). In spite of this fact it is evident that it is a bona species. The length of the cirrus sac and vagina, the character of the seminal receptacle, and the distribution of the testes distinctly distinguish this species from all the so far named species of the genus Paranoplocephala which had been described before 1915. According to our opinion, however, the material indicated as A. primordialis = P. primor dialis and found inmammals of the genus Mi_crotu_s (see data in RAUSCH and SCHILLER 1949, RAUSCH 1952) should be checked. 7. Paranoplocephala gundii (Joyeux, 1923 ) Tenora, Murai et Vaucher 1985. Syn. : Andrya primordialis var, gundi Joyeux, 1923, Andrya gundii (Joyeux, 1923) Spassky, 1951. Original host: CjenodactyJuj:_gundL Africa. Holotype: deposited in the Muséum Histoire Naturelle, Geneva. Paratype: deposited at the Faculté des Sciences et Techniques, Sfax, Tunisia, Laboratoire de Zoologie, MNHN Sf 52 et SF 61. Comments: The species is very close to the species P. primordialis and Baer (1927) considers it as syn-