DCHP-1 Online
hykwa hai-qua 
n. the shell of a mollusc, Dentalium indianorum, used by the Coast Indians as money and ornaments.
See also: hiaqua
- 1862 The northern tribes wear also very generally a small round shell, called the "hai-qua," in appearance not unlike a piece of clay-pipe stem one or two inches long, stuck into their lower lips at an angle of 45° with the chin.
- 1922 Of all his wealth of fish and furs, of game and hykwa (large shell-money) he gave to the boys who had none. . . .
- 1862 The northern tribes wear also very generally a small round shell, called the "hai-qua," in appearance not unlike a piece of clay-pipe stem one or two inches long, stuck into their lower lips at an angle of 45° with the chin.