[Morphological characteristics of the shell of the ova of Capillariidae (Nematoda, Capillariidae)].

Peculiarities of the surface architectonics of the egg shell in 18 species of capillariids (Nematoda, Capillariidae) were studied. Capillariids were found in mammals of 5 orders: Insectivora, Chiroptera, Muridae, Carnivora and Arctiodactyla. A correlation between the structure of the external surface of egg shell of these nematodes on one hand, and localization in the organism of the definitive host and its biology on the other, was established. On the basis of these characters capillariids of the genera Capillaria, Eucoleus, Calodium, Liniscus, Thominx and Scrjabinocapillaria were arranged into 6 groups: 1 - the genus Capillaria (luman of the stomach and gut), 2 - the genus Eucoleus (mucous membrane of oesophagus and stomach), 3 - the genus Calodium (parenchima of the liver), 4 - the genus Liniscus (urinary bladder), 5 - the genus Thominx (lungs), 6 - the genera Thominx and Scrjabinocapillaria (lumen of the stomach). The classification suggested makes more precise and supplements the known systems of nematodes of the fam. Capillariidae.