Whitefish \White"fish`\, n. (Zo["o]l.)
   (a) Any one of several species of Coregonus, a genus of excellent food fishes allied to the salmons. They inhabit the lakes of the colder parts of North America, Asia, and Europe. The largest and most important American species (C. clupeiformis) is abundant in the Great Lakes, and in other lakes farther north. Called also lake whitefish, and Oswego bass.
   (b) The menhaden.
   (c) The beluga, or white whale.

Note: Various other fishes are locally called whitefish, as the silver salmon, the whiting (a), the yellowtail, and the young of the bluefish (Pomatomus saltatrix).

Source: Webster's Revised Unabridged Dictionary (1913)
 

Silver plover (Zo["o]l.), the knot.

Silver salmon (Zo["o]l.), a salmon (Oncorhynchus kisutch) native of both coasts of the North Pacific. It ascends all the American rivers as far south as the Sacramento. Called also kisutch, whitefish, and white salmon.

Silver shell (Zo["o]l.), a marine bivalve of the genus Anomia. See Anomia.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Menhaden \Men*ha"den\, n. (Zo["o]l.) An American marine fish of the Herring familt (Brevoortia tyrannus), chiefly valuable for its oil and as a component of fertilizers; -- called also mossbunker, bony fish, chebog, pogy, hardhead, whitefish, etc.

Source: Webster's Revised Unabridged Dictionary (1913)