White Fish (Coregonus Albus Lesueur) a valuable member of the salmon family, peculiar to North America. It is found in the great lakes from Lake Erie to the Arctic sea, in Lake Ohamplain, in the smaller lakes of Canada connected with the St. Lawrence on the S. side, and in. the Mackenzie, Coppermine, and other rivers flowing into the icy sea, even as low down as brackish water. The mouth is small and without teeth, the body elongated but thick, head small and pointed, tail forked, first dorsal not so long as high in front, and scales large. It attains a length of 1½ to 2½ ft., and a weight of 3 to 10 lbs., in the clear waters of Lake Superior becoming very large and fat; its general appearance is shad-like, whence it is called lake shad at Burlington, Vt. It is bluish gray on the back, lighter on the sides, and white below. In October they enter the rivers from the lakes to spawn, usually returning in three or four weeks; they are gregarious, and move from place to place according to the supply of food, which consists of insects and larvae, tender aquatic plants, soft-shelled mollusks, and occasionally small fishes; they die very quickly when taken out of the water. They are caught principally by gill nets, most abundantly when spread under the ice.

The flesh is bluish white, changing when boiled to pure opaque white, whence the name.