Free-Living Nematodes from a Small River in Central Russia

V. G. Gagarin

Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences,

Borok, Nekouzskii raion, Yaroslavl oblast, 152742 Russia

e-mail: gagarin@ibiw.yaroslavl.ru

Received July 20, 2007

Abstract—The species composition and quantitative development of free-living nematodes were studied on
stations in the lower reaches of the Sutka River (a tributary of the Rybinsk Reservoir). Fifty-four species from
11 orders were recorded. The dominant species were Dorylaimus stagnalis, Tobrilus gracilis, and Eumonhys-
tera filiformis
. The description and illustrations of the newly discovered Tridentulus pseudolemani are pre-
sented.

DOI:10.1134/S1995082909010040


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