THE LEECHES FAUNA (ANNELIDA: HIRUDINEA) IN RESERVOIRS IN NATURE RESERVE "PRISURSKY" AND ITS BUFFER ZONE (SURA RIVER LOWER COURSE)
The own study and published data on leeches fauna in water reservoirs of the State Nature Reserve «Prisursky» (Sura river lower course) summarized. Totally, 8 species revealed. Alboglossiphonia hyalina, Placobdella costata, Haemopis sanguisuga and Hirudo medicinalis are very rarely found in studied region. A. hyalina, H. medicinalis and Hemiclepsis marginata occurred in Nature Reserve «Prisursky» and was not found in other water bodies of the Chuvash Republic.