Teratobaikalia macrostoma is a species of a freshwater snail with an operculum, an aquatic gastropod mollusk in the family Amnicolidae.
Teratobaikalia macrostoma is the type species of the genus Teratobaikalia.
Teratobaikalia macrostoma Wikipedia
Teratobaikalia macrostoma lives in the northern and central parts of Lake Baikal, in depths from 1 to m. The type locality is Maloe More in Baikal.
The shell has 4.5-5 whorls. The width of the shell is 7.5–9 mm. The height of the shell is 8.75-11.5 mm.