conch

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conch

(kŏngk, kŏnch, kôngk), common name for certain marine gastropodgastropod,
member of the class Gastropoda, the largest and most successful class of mollusks (phylum Mollusca), containing over 35,000 living species and 15,000 fossil forms.
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 mollusks having a heavy, spiral shell, the whorls of which overlap each other. In conchs the characteristic gastropod foot is reduced in size and the operculum, a horny plate located on the foot and used to seal the shell opening in many gastropods, has the appearance and function of a claw. During locomotion, the operculum secures a foothold in the sand, and the conch jumps forward by means of the quick contraction of a retractor muscle called the columella muscle. Thus the conch lacks the creeping motion of most gastropods. The king conch, Strombus gigas, found in the warmer waters of the Atlantic, Caribbean, and Gulf of Mexico, has a shell 10 to 12 in. (25–30 cm) long and may weigh up to 5 lb (2.3 kg). Similar in size and distribution is the queen conch, Cassis cameo. Its shell has been used in Europe to carve cameos. Conch shells range in color from white to red; they have been used by humans to fashion a number of items, such as buttons, ornaments, or the crude trumpets made from the shell of the trumpet conch, Charonia tritonis. This conch is similar in shape to the king and queen conchs but is much more slender and reaches a length of 20 in. (50 cm). C. tritonis is found in the Gulf of Mexico and the Indian Ocean. The largest conch and also one of the largest univalves in the world is the horse conch, Pleuroploca gigantea, having a shell length of 24 in. (60 cm). It is found along the Atlantic Coast from North Carolina to Brazil. The body can retreat entirely into the shell and remain there for months if unfavorable conditions prevail. An unusual conch shell is that of the spider conch, Lambis lambis, which has leglike projections. Spider conchs are voracious carnivores, common on coral reefs. They also feed on algae, as do the king conchs. Most conchs are carnivorous, feeding on bivalve mollusks; some are scavengers as well. They inhabit tropical waters and have been used as a food source for man. The conch is classified in the phylum MolluscaMollusca
, taxonomic name for the one of the largest phyla of invertebrate animals (Arthropoda is the largest) comprising more than 50,000 living mollusk species and about 35,000 fossil species dating back to the Cambrian period.
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, class Gastropoda, order Mesogastropoda.

Conch

Semidome vaulting of an apse or eastern end of a church.

conch

[käŋk]
(invertebrate zoology)
The common name for several species of large, colorful gastropod mollusks of the family Strombidae; the shell is used to make cameos and porcelain.

conch

The domed roof of a semicircular apse.

conch

1. any of various tropical marine gastropod molluscs of the genus Strombus and related genera, esp S. gigas (giant conch), characterized by a large brightly coloured spiral shell
2. the shell of such a mollusc, used as a trumpet
References in periodicals archive ?
The pounding percussion of 'Warucex/Sister Hurricane' is punctuated by choral chants, a couple of conch shell blasts; it is energetic and assertive, reminiscent of tropical storms and of the rhythms heard at island carnivals and other celebrations.
They sat on museum shelves for years--skinny flutes made of bone and wood, dangling hoof tinklers conch shells fashioned into trumpets--with little more than short captions to tell their stories.
The 28-year-old magistrate blew the ceremonial conch shell to signal the reopening of the temple in front of a crowd of 400, including dignitaries and the national media.
Take an oversize resin conch shell (at left) and tuck in a few tillandsias, and what do you have?
Look at the graceful yet commanding curve of Bullring, and the conch shell shelter over Costa.
Britney then sounded a traditional conch shell and they surfed onto the sand on a wave.
The languid Venus is a "demonic phantom," and the children represent "nightmare terrors" (141) who are about to stir up a hornet's nest as they obscenely play with lance and conch shell.
Larry Wells, a music professor at Southwestern Oregon Community College, will trace the history of the trumpet from prehistoric times when a conch shell was used to make music to the development of horns with and without valves.
During the conching process, called after the spiral shaped equipment resembling a conch shell, the liquid paste is dropped into an oversize mixer.
Toji Kamata, an assistant professor of religion at Musashigaoka College in Saitama Prefecture who kicked off the event by blowing a conch shell, said he hopes participants transcend religion and develop a sense of bonding through prayer, which he calls a universal practice.
When John Paul proclaimed Juan Diego a saint, 11 dancers in native Aztec costume began to dance their way down a runway approaching the papal riser, while conch shell horns and rattles could be heard throughout the basilica.
Next, she draws a conch shell and lastly a still life in color.