[Two new nematode species found in amphibians and reptiles from the north part of Fergana valley].

Two new species of nematodes found, in the north of Fergana Plain (Uzbekistan): Raillietnema uzbekistanica sp. n. (Cosmocercidae) from the Horsfields Tortoise Testudo horstfieldi (Testudinidae), and Spironoura govacus sp. n. (Kathlaniidae) from the green toad Bufo viridis (Bufonidae). Data on infection of R. uzbekistanica sp. n. with predatory fungi in different seasons are given.