Dr. Murai Éva szerk.: Parasitologia Hungarica 19. (Budapest, 1986)
SPASSKY (1951) and TENORA and MURAI (1980) consider the species P. ondatrae to be a bona species. The characters distinguishing the species P. ondatrae from other species are evident from the key for the identification of the species of the genus Paranoplocephala. 15. Andrya bialowiezensis Soltys, 1949. Original host: M_icrotus aj-vali_s, Poland. Holotype: does not exist. Comments: The features of this species correspond with the characteristics given for the genus Parano plocephala. ZARNOWSKI (1955-1956) considers it to be a synonym of the species A. macro cephala. RAUSCH' s (1957) approach the same. TENORA, HAUKISALMI and HENTTONEN (198 5b) state that the species A. bialowiezensis is a nom en nudum (for details see the latter study). 16. Paranoplocephala arctica (Rausch, 1952) Tenora, Murai et Vau cher, 1984. Syn.: And rya arctica Rausch, 1952. Original host: Dicj , osJonyx_gj-oejrüaj^i_cus rubricatus, North America. Holotype: deposited in the Helminthological Collection of the U.S. National Museum, No. 37356. Comments: This species is very close to the species P. primordialis. It differs fundamentally in the strongly developed cirrus sac, which is expressively beyond the ventral excretory canal. As an auxiliary additional criterion, can serve the fact that the genital pores in P. arctica are irregularly alternate whereas in P. primordialis the genital openings are one-sided. RAUSCH (1952) also states: "It is possible that adaption to host species (it is predominantly a parasite of lemmings) and geographical distribution (arctic North America) also have some specific significance. " 17. Paranoplocephala bairdi (Schad, 1953) Tenora, Murai et Vaucher, 1984. Syn. : Andrya bairdi Schad, 1953Original host: ^li£roji^s_cj^£ojrhinu_s, Canada. Holotype: deposited in the Helminthological Collection of the U. S. National Museum, No. 48758. Comments: A species with metrical-morphological characters which distinguish it relatively distinctly from the known species of the genus Paranoplocephala. They are: oval seminal receptacle, testes distributed in the aporal side of segments only, small scolex (0. 30 mm), small suckers (0.021 mm) and a relatively long strobila (about 200 mm). 18. Paranoplocephala dasymidis (Hunkeler, 1972) Tenora, Murai et Vaucher, 1984. Syn. : Andrya dasymidis Hunkeler, 1972, Aprostatandrya dasymidis (Hunkeler, 1972) Hunkeler, 1974. Original host: Dasyrnv_s -jncomtus rufulus, Africa. Holotype: place of deposition is not given. Comm ents: This species differs from all the hitherto known species of the genus Paranoplocephala in the arrangement of the testes in the nature segments. Its hitherto known hosts and zoogeographical distribution are also very specific.