conch 
(kŏngk, kŏnch)
(kŏngk, kŏnch)n. pl. conchs (kŏngks) or conch·es (kŏnchĭz)
1. Any of various tropical marine gastropod mollusks chiefly of the family Strombidae, having edible flesh and a large spiral shell often with a flared lip.
2. The shell of one of these gastropod mollusks, used as an ornament, in making cameos, or as a horn.
3. Anatomy See concha.
[Middle English conche, from Old French, from Latin concha, mussel, from Greek konkhē.]
conchqueen conch
Strombus gigas