58. Theromyzon tessulatum (Mueller, 1774)

Protoclepsis tesselata Livanow 1902

Geographic distribution.

Holarctic species. In tundra zone of Russia: no data.

Location.

Small lakes near Syattey-ty (67°33'46.2"N, 62°41'32.8"E); temporary pond near Kharbey (67°58'00"N, 62°34'60"E).

Ecology.

The leeches were found in the moss cover of the substrate in two swamped lakes, which do not have an open water surface.