Coregonus megalops
Coregonus megalops is a putative species of whitefish, part of the Coregonus lavaretus complex. Its distribution is in Sweden, Finland, and Russia.
In Sweden, the name C. megalops has referred to a form of whitefish known as the blåsik. That is however no more considered a distinct species but a morphotype of Coregonus maraena, and not different from "Coregonus maraena morphotype nilssoni".