[New species of nematode, Skrjabillanus schigini sp. n. (Camallanata: Skrjabillanidae), from the white amur].

A description and differential analysis of the nematode Skrjabillanus schigini sp. n. are given. The species was found in the serous membrane of the swim bladder and mesentery of the white amur from pond farms of the Krasnodar Territory. The new species differs from S. amuri from the same host in having four rather than five pairs of pedunculated papillae supporting the caudal alae; in the presence of one rather than two chitinous plate in the cloaca; by the parasitism in the swim bladder wall rather than in the body cavity.