New genus and species of Baikalian endemic mollusk Yaroslawiella eximia (Caenogastropoda, Hydrobioidea) [Russian]

摘要

A new genus and species of an endemic mollusk from Lake Baikal are described. The morphology of shell and radula and the species anatomy was studied. The teleoconch of the new species has ribs like the Baikalian endemic Baicaliidae. According to its protoconch sculpture and anatomy, it belongs to Benedictiidae.