Overview of helminths of amphibians (Amphibia) from the Samara region

The faunistic overview of parasitic worms of amphibians of the Samara region is given. In total, 51 species of parasites: Cestoda (2), Monogenea (1), Trematoda (32), Nematoda (10) Acanthocephala (1) and Clitellata (1) are registered in the amphibians in the region. For each species of the parasite, a systematic position, a circle of hosts, localization, specificity to the hosts, finding sites in the region, rates of invasion and general distribution. The helminth fauna of the marsh frog is the most abundant - 43 species of parasites are found. The pool frog and the moor frog recorded 27 and 24 species of parasites, respectively. The helminth fauna of the Pallas' spadefoot toad (16 species), the fire-bellied toad (15) and the green toad (15) is less rich. The helminth fauna is relatively poor in an edible frog (8 species) and smooth newt (5). The common frog has only 1 helminth species. 7 species of parasites: acanthocephalan Acanthocephalus falcatus, trematodes Phyllodistomum angulatum, Astiotrema monticelli, mtc., nematodes Camallanus truncatus, Megalobatrachonema terdentatum, Spiroxys contortus, larvae and leech Helobdella stagnalis was indicate for the first time for amphibians of the fauna of Russia. Nematode Thelandros tba was noted for the amphibians of the Volga Basin for the first time.