Hard, protective outer layers created by an animal that lives in the sea
Not to be confused with Seychelles.
For the coaster ship, see MV Seashell. For the color, see Seashell (color).
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Part of a series on
Seashells
Mollusc shells
Clam shells
Chiton shells
Snail shells
Tusk shells
About mollusc shells
Conchology
Nacre
Valve
Other seashells
Brachiopod shells
Crustacean shells
Horseshoe crabs
Sea urchin tests
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Seashells washed up on the beach in Valencia, Spain; nearly all are single valves of bivalve mollusks, mostly of Mactra corallinaHand-picked molluscan seashells (bivalves and gastropods) from the beach at Clacton on Sea in EnglandA group of seashells, mostly bivalves in the family PholadidaeMixed shells on a beach in VenezuelaHermit crabs inhabiting marine gastropod shells that lived in the Persian GulfA group of beachworn sea snail shells that vary in size, form and pattern combination.
A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea. The shell is part of the body of the animal. Empty seashells are often found washed up on beaches by beachcombers. The shells are empty because the animal has died and the soft parts have decomposed or been eaten by another animal.
A seashell is usually the exoskeleton of an invertebrate (an animal without a backbone), and is typically composed of calcium carbonate or chitin. Most shells that are found on beaches are the shells of marine mollusks, partly because these shells are usually made of calcium carbonate, and endure better than shells made of chitin.
Apart from mollusk shells, other shells that can be found on beaches are those of barnacles, horseshoe crabs and brachiopods. Marine annelid worms in the family Serpulidae create shells which are tubes made of calcium carbonate cemented onto other surfaces. The shells of sea urchins are called "tests", and the moulted shells of crabs and lobsters are exuviae. While most seashells are external, some cephalopods have internal shells.
Seashells have been used by humans for many different purposes throughout history and prehistory. However, seashells are not the only kind of shells; in various habitats, there are shells from freshwater animals such as freshwater mussels and freshwater snails, and shells of land snails.
A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea...
Seashell resonance refers to a popular folk myth that the sound of the ocean may be heard through seashells, particularly conch shells. This effect is...
The Seashell and the Clergyman (French: La Coquille et le Clergyman) is a 1928 French experimental film directed by Germaine Dulac, from an original scenario...
in 1987. Seashell #FFF5EE Seashell is an off-white color that resembles some of the very pale pinkish tones that are common in many seashells. The first...
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the Seashell Synagogue (Hebrew: בית הכנסת קונכית, Beit haKnesset Konkit, Greek: Συναγωγή Κοχύλι) because of its unusual shape resembling a seashell. Hechal...
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expressions were popular in the 19th century. The popular "she sells seashells" tongue twister was originally published in 1850 as a diction exercise...
This page is about the galaxy, for the band, see M83 (Band). Messier 83 or M83, also known as the Southern Pinwheel Galaxy and NGC 5236, is a barred spiral...
The Seashells Resort at Suncrest is a resort in the area of Qawra, in Saint Paul's Bay, Malta built in 1987 as the Suncrest Hotel by Angelo Xuereb, owner...
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Seashell was a 312 GRT coaster that was built in 1943 by Lidingö Nya Varv & Vaerkstaeder, Lidingö, Sweden for German owners. She was seized by the Allies...
Conchiglie (Italian: [koŋˈkiʎʎe]), commonly known as "shells" or "seashells", is a type of pasta. It is usually sold in the plain durum wheat variety...
associated with music of the spheres. Dakshinavarti shankha Lentigo pipus SeashellSeashell resonance Wells, J. C. (2016). Sounds Fascinating: Further Observations...
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