''Mergellus'' is a genus of duck. The smew ''(Mergellus albellus)'' is the only living species, but an extinct species known as '' Mergellus mochanovi'' has also been described from Late Pleistocene deposits in the

Yakutia Sakha, officially the Republic of Sakha (Yakutia),, is the largest republic of Russia, located in the Russian Far East, along the Arctic Ocean, with a population of roughly 1 million. Sakha comprises half of the area of its governing Far E ...

region of

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...

References

{{Taxonbar, from=Q10792772 Bird genera Bird genera with one living species Taxa named by Prideaux John Selby Anatinae