Čeleď: Salmonidae Jarocki / Schinz, 1822
Rod: Prosopium Jordan, 1878
Coregonus cismontanus williamsoni Jordan, 1890; Coregonus oregonius Jordan & Snyder, 1909.
57 cm.
Girard, C. F. 1856. Contributions to the ichthyology of the western coast of the United States, from specimens in the museum of the Smithsonian Institution. Proceedings of the Academy of Natural Sciences of Philadelphia v. 8: 131-137.