Nematodes

The possibility of using helminths to analyze the faunogenesis of amphibians in the Volga River basin is considered, using geographically isolated subspecies of the green toad Bufotes viridis (Laurenti, 1768) as an example. A depleted helminth composition was established in the “western” subspecies B. v. viridis (Laurenti, 1768); the presence of cestodes and acanthocephalans was noted in the “eastern” subspecies B. v. sitibundus (Pallas, 1771) only.

The reproductive structure of Cosmocerca ornata (Dujardin, 1845) in marsh frogs (Pelophylax ridibundus (Pallas, 1771)) of both the striata and non-striata phenotypes was studied. Distinctions in the physiology, ecology and behavior of striped and unstriped amphibians have certain influence on the intensity of processes of the host infestation and maturing of C. ornata in frogs of different phenotypes. Analysis of the age structure of the C.

The helminth community of the Green toad Bufotes viridis (Laurenti, 1768) from the population inhabiting the Caspian basin on the territory of the Republic of Dagestan is characterized. The study was carried out according to the method of full helminthological autopsy. Six species of helminths belonging to two types have been registered: Nematoda (4) and Acanthocephala (2).