Gwyniad, the name given to a fish of the genus Coregonus or White fish (C. clupeoides), inhabiting the large lakes of North Wales and the north of England. At Ullswater it is known by the name of schelly, at Loch Lomond by that of powen. It is tolerably abundant in Lake Bala, keeping to the deepest portion of the lake for the greater part of the year, but appearing in shoals near the shores at certain seasons. It is well flavoured, like all the species of Coregonus, but scarcely attains to the weight of a pound. The name gwyniad is a Welsh word, and signifies shining; and it is singular that a similar fish in British Columbia, also belonging to the family of Salmonoids, is called by the natives quinnat, from the silvery lustre of its scales, the word having in their language the same meaning as the Welsh gwyniad.
Being the entry for GWYNIAD in the 1911 Encyclopedia Britannica, the text of which lies within the public domain.