Khubsugul grayling (Thymallus baikalensis nigrescens)
The scale cover is monochrome, gray-black or almost black. Near the head there are small black spots. The gill covers are dark gray. Between the pectoral and the ventral fins, two parallel dark stripes are visible. The caudal peduncle, pectoral, anal and caudal fins are plain gray. The pelvic fins have 4-5 oblique reddish stripes. In the rear part of the dorsal fin, there are 3-5 uneven rows of red-maroon spots. Some of the spots, merging with a narrow scarlet fin edge, form wide stripes extending to the middle parts of the rays.
The information that Siberian grayling is also found in the Lake Huvsugul has not been confirmed.