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The California gray whale.

of louse (Pediculus vestimenti), which sometimes infests the human body and clothes. See Grayback. -- Body plan (Shipbuilding), an end elevation, showing the conbour of the sides of a ship at certain points of her length. -- Body politic, the collective body of a nation or state as politically organized, or as exerc…

The red-breasted or gray snipe (Macrorhamphus griseus); -- called also brownback, and grayback.

hale (Rhachianectes glaucus), formerly taken in large numbers in the bays; -- called also grayback, devilfish, and hardhead.

ater genera; -- called also river mussel. See Naiad, and Unio. Mussel digger (Zoöl.), the grayback whale. See Gray whale, under Gray.

but is smaller and its head brighter red. Called also red-headed duck. American poachard, grayback, and fall duck. See Illust. under Poachard.