At publication (Forest, 1956a), examination had not been possible for specimens of the group of Draparnaldia species which are endemic to Lake Baikal. Then, a tentative appraisal had to be made from descriptions and illustrations by their author, Constantine Meyer (1922) (1924) (1926). Now specimens of all nine species have been examined, and a careful translation completed of their descriptions as given by Meyer (1930).