Dr. Murai Éva - Gubányi András szerk.: Parasitologia Hungarica 27. (Budapest, 1994)

P. heterodontis. The samples from France used in the redescription of P. sonsinoi by Moravec (1986) have morphometric characteristics similar to those of P. viperae and P. mingazzinii (Table 1). However, clear differences were found in the egg surface sculpture of P. xochimilcensis (few big plates with wide furrows) and of P. viperae (many small plates with narrow furrows). Finally, none of the descriptions of specimens from one locality (population) overlaps even half of the established range of variability in the taxonomic characters. In conclusion, we regard P. sonsinoi, P. mingazzinii, P. xochimilcensis, P. heterodontis, P. colubra, P. viperae and P. ptyasi as distinct species until a more sound concept for synonymization, based on additional data on the morphological variability of species included in the genus Paracapillaria, is presented. The synonymization suggested by Moravec (1986) is, on the one hand, not based on examination of the type materials and, on the other hand, significant differences in nematode morphology and geographical distribution, host species range and within host localization exist among Paracapillaria species described in the literature so far. Obviously, further studies are needed to clarify the species composition of capillariid nematodes parasites of reptiles from the Palaearctic and particularly those from Europe. Biserkov, V. I., Mészáros, F. és Chipev, N.: Paracapillaria sonsinoi (Parona, 1897) (Nematoda: Capillariidae) és szinonimjai A szerzők hét Paracapillaria taxon önállóságát bizonyítják morfometriai tulajdonságaik, a gazdában való megtelepedés helye és zoogeográfiai elterjedésük alapján. REFERENCES Baker M. R. (1987): Synopsis of the Nematoda parasitic in Amphibians and Reptiles. Memorial University of Newfoundland Occasional Papers in Biology, 11: 1-325. Collins R. E (1973): New hosts and locality records for Capillaria colubra Pence, 1970. Journal of Parasitology, 59 (6): 1020. Moravec F. (1982): Proposal of a new systematic arrangement of nematodes of the family Capillariidae. - Folia Parasitologic (Praha), 29: 119-132. Moravec F. (1986): Review of Capillariid nematodes (Capillariinae) parasitic in amphibians and reptiles. Part 3. Genus Paracapillaria. - Vest. Ceskoslov. Spot Zool., 50:573-589. Pence D. B. (1970): Capillaria colubra sp. n. from the oviducts of Coluber constrictor priapus. - Journal of Parasitology, 56 (2): 261-264. Skrjabin K. I., Shihobalova N. P. and Orlov I. V (1957): Trichocephalid and capillariid parasites of man and animals and the diseases caused by them (In Russian). - In: Osnovy Nematodologii (Ed. K. I. Skrjabin), Moscow, Izd. AN USSR, Volume 6, pp. 587. Wang P. Q. (1982): Studies on nematodes of the family Capillariidae from Fujian (in Chinese, Engl, summary). -Acta Zootaxonom. Sinica, 7:117-126.