L. Forró szerk.: Miscellanea Zoologica Hungarica 7. 1992 (Budapest, 1992)

Sey, O.; Eöry, K.: Helminth parasites of amphibians of the Lake Balaton area

6 O. Sey and K. Eöry Table 1. List of helminth species of amphibians of the Lake Balaton area Species Kis-Balaton Lake Balaton Trematoda Diplodiscidae Diplodiscus subclavatus + + Opisthodiscus diplodiscoides + Plagiorchiidae Opisthioglyphe ranae + Pneumonoeces asper + Pneomonoeces variegatus + + Skrjabinoeces simUis + Skrjabinoeces breviansa + Skrjabinoeces volgensis Pleurogenes claviger + Brandesia turgida + Pleurogenoides medians + + Prosotocus confusus + + Halipegidae Halipegus ovocaudatus + Halipegus kessleri + Trematoda larvae Codonocephalus umigerus + + Strigea sphaerula + Neodiplostomum spathoides + Tylodelphis excavata + Acanthocephala Acanthocephalus ranae + + Skrjabinoeces breviansa Sudarikov, 1950 (Fig- 1) Diagnosis: Body length 3.82-4.76 mm, body width 0.98-1.26 mm. Tegument without spines. Oral sucker 0.30-0.34 mm in diameter; praepharynx absent, pharynx spherical, 0.14-0.18 mm in diameter. Ventral sucker 0.17-0.21 mm in diameter. Testes oval, situated diagonally, having same measurements: 0.62-0.71 x 0.49-0.52 mm. Ovary spherical, 0.34-0.40 mm in diameter. Eggs measure 0.031 x 0.019 mm. Habitat: lung Skrjabinoeces volgensis Sudarikov, 1950 (Fig. 2) Diagnosis: Body length 4.22-4.67 mm, body width 0.98-1.32 mm. Tegument covered with spines. Oral sucker 0.40-0.42 mm in diameter; praepharynx absent, pharynx 0.12-0.14 mm in diameter. Ventral sucker 0.32-0.34 mm in diameter. Testes oval or spherical having same measurements: 0.26-0.29 x 32-0.36 mm. Ovary oval, 0.35- 0.40 mm in diameter. Eggs measure 0.030 x 0.020 mm. Habitat: lung