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Encyclopedia > Clam
Littleneck clams; the pictured molluscs are of the species Mercenaria mercenaria.
Littleneck clams; the pictured molluscs are of the species Mercenaria mercenaria.
Maxima clam (Tridacna maxima).
Maxima clam (Tridacna maxima).
Moche Clam. 200 A.D. Larco Museum Collection Lima, Peru.
Moche Clam. 200 A.D. Larco Museum Collection Lima, Peru.
Look up clam in Wiktionary, the free dictionary.

A clam is a kind of mollusc that has a shell divided into two pieces called valves, in other words, a clam is a bivalve mollusc. Look up clam in Wiktionary, the free dictionary. ... Image File history File links LittleNeck_clams_USDA96c1862. ... Image File history File links LittleNeck_clams_USDA96c1862. ... Download high resolution version (1361x989, 499 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (1361x989, 499 KB) Wikipedia does not have an article with this exact name. ... Binomial name Tridacna maxima Röding, 1798 The maxima clam (Tridacna maxima), also known as the small giant clam, is a species of clam found throughout the Indo-Pacific. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... The Larco Museum (Spanish: ) is located in the Pueblo Libre District in Lima, Peru. ... Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ... Orders Subclass Protobranchia Solemyoida Nuculoida Subclass Pteriomorphia - oysters Arcoida Mytiloida Pterioida Subclass Paleoheterodonta - mussels Trigoinoida Unionoida Subclass Heterodonta - clams, zebra mussels Veneroida Myoida Subclass Anomalosdesmata Pholadomyoida Animals of the Class Bivalvia are known as bivalves because they typically have two-part shells, with both parts being more or less symmetrical. ...


The word "clam" has no real taxonomic significance in biology. However in the USA the word can sometimes be used to mean any bivalve mollusc. It can also be used to mean a bivalve other than an oyster, mussel, or scallop, and that has a more-or-less oval shape, or a freshwater mussel (Merriam-Webster Dictionary.). The word clam is also often used to mean any one of many edible bivalve species which live buried in sand, hence, "digging for clams" or clam digging. For the science of classifying living things, see alpha taxonomy. ... For the song by Girls Aloud see Biology (song) Biology studies the variety of life (clockwise from top-left) E. coli, tree fern, gazelle, Goliath beetle Biology (from Greek: βίος, bio, life; and λόγος, logos, speech lit. ... For other uses, see Oyster (disambiguation). ... Subclasses Pteriomorpha (marine mussels) Palaeoheterodonta (freshwater mussels) Heterodonta (zebra mussels) The term mussel is used for several families of bivalve molluscs inhabiting lakes, rivers, and creeks, as well as intertidal areas along coastlines worldwide. ... Genera See text. ... Clam digging is a common means by which to harvest clams from below the surface of the tidal mud flats where they live. ...


Not all edible clams are round or oval in shape: the razor clam has an elongated shell whose shape suggests a straight razor. The Pacific Razor clam (Siliqua patula) is a bivalve mollusk with an elongated oblong narrow shell which ranges from 3 to 6. ... A straight razor Straight razor is the name given to a reusable knife blade used for shaving facial hair. ...


In October 2007 an Arctica islandica clam off the coast of Iceland was discovered to be at least 405 years old, and was declared the world's oldest living animal by researchers from Bangor University. Binomial name Linnaeus, 1767 Arctica islandica, or the ocean quahog or Icelandic cyprine, is a marine bivalve mollusk native to the North Atlantic ocean. ... The University of Wales, Bangor (UWB) is a constituent institution of the University of Wales based in the small city of Bangor in the county of Gwynedd in North Wales, United Kingdom. ...

Contents

Anatomy

A clam's shell or two valves are connected by a hinge joint and a ligament that can be external or internal. Two adductor muscles close the shells. The clam has no head, and usually has no eyes (scallops are a notable exception), but a clam does have kidneys, a heart, a mouth, and an anus. This article refers to the sight organ. ... Genera See text. ... Kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ... The heart and lungs, from an older edition of Grays Anatomy. ... For other uses, see Mouth (disambiguation). ... This article is about the bodily orifice. ...


Clams, like most molluscs, also have open circulatory systems, which means that their organs are surrounded by watery blood that contains nutrients and oxygen. Clams eat plankton, and they themselves are eaten by small sharks and squid. An open circulatory system is an arrangement of internal transport in which blood bathes the organs directly and there is no distinction between blood and interstitial fluid. ...


In culinary use, the term "clam" most often refers to the hard clam Mercenaria mercenaria but it may refer to several other species such as the soft-shell clam Mya arenaria. Clams can be eaten raw, steamed, boiled, baked or fried; the method of preparation depends partly on size and species. Clam chowder is a popular soup in the U.S. and Canada. In Italy, clams are often an ingredient of mixed seafood dishes, or are eaten together with pasta. Quahog redirects here. ... Soft-shell Clams, mya arenaria, popularly called steamers, softshells or longnecks, are clams that live buried in tidal mudflats most famously on the coast of New England but their range extends much farther north to Canada and to the Southern states. ... The fried clam was invented in Essex, Massachusetts by Lawrence Dexter Chubby Woodman on July 3, 1916 in his small village restaurant. ... New England clam chowder. ... For other uses of terms redirecting here, see US (disambiguation), USA (disambiguation), and United States (disambiguation) Motto In God We Trust(since 1956) (From Many, One; Latin, traditional) Anthem The Star-Spangled Banner Capital Washington, D.C. Largest city New York City National language English (de facto)1 Demonym American... Percentages are relative to US recommendations for adults. ...


The Maxima clam Tridacna maxima, a species of giant clam, is popular with saltwater aquarium hobbyists. Binomial name Tridacna maxima Röding, 1798 The maxima clam (Tridacna maxima), also known as the small giant clam, is a species of clam found throughout the Indo-Pacific. ... Binomial name Linnaeus, 1758 The giant clam (Tridacna gigas) or traditionally, pa’ua, is the largest living bivalve mollusc. ... “Aquaria” redirects here. ...


The Moche people of ancient Peru worshipped the sea and its animals. They often depicted clams in their art. [1] The Moche civilization (alternately, the Mochica culture, Early Chimu, Pre-Chimu, Proto-Chimu, etc. ...


Examples of clams

Arc Clams belong to the family Arcidae. ... Genera See text. ... Genera See text. ... Genera See text. ... Genera See text. ... Quahog redirects here. ... Quahogs (pronounced KO-hog, IPA , kwag, or kwa-HOG, IPA ), mercenaria mercenaria or venus mercenaria, are also called hard-shell clams, and by terms referring to different sizes from smallest to largest, littlenecks, cherrystones, quahogs, and chowders. The Quahog takes its name from the Narragansett Indian word poquauhock (the word... Soft-shell Clams, mya arenaria, popularly called steamers, softshells or longnecks, are clams that live buried in tidal mudflats most famously on the coast of New England but their range extends much farther north to Canada and to the Southern states. ... Spisula solidissima. ... Binomial name Linnaeus, 1767 Arctica islandica, or the ocean quahog or Icelandic cyprine, is a marine bivalve mollusk native to the North Atlantic ocean. ... The Pacific Razor clam (Siliqua patula) is a bivalve mollusk with an elongated oblong narrow shell which ranges from 3 to 6. ... Binomial name Linnaeus, 1758 The giant clam (Tridacna gigas) or traditionally, pa’ua, is the largest living bivalve mollusc. ... Binomial name Scrobicularia plana Da Costa, 1778 The Peppery furrow shell Scrobicularia plana is the only species currently recognized by ITIS in the genus Scrobicularia; however some sources recognise other species such as Scrobicularia cottardi. ... The coast at Pismo Beach Pismo Beach is a city in San Luis Obispo County, California, United States. ... Binomial name Conrad, 1849 The geoduck (pronounced gooey duck),[1] Panopea abrupta or Panope generosa, is a species of large saltwater clam, also known as the king clam or elephant trunk clam. ... Ensis directus Found on the Atlantic coast, from Canada to South Carolina, the Atlantic jackknife clam lives in in the sand and mud found in intertidal or subtidal zones. ...

See also

Wikimedia Commons has media related to:
Bivalvia

Image File history File links Commons-logo. ... The New England Clam Bake is a traditional method of cooking foods, especially seafood such as lobster, mussels, crabs, clams, and quahogs. ... This traditional New England meal is a simpler substitute for the New England clam bake. ...

References

  1. ^ Berrin, Katherine & Larco Museum. The Spirit of Ancient Peru:Treasures from the Museo Arqueológico Rafael Larco Herrera. New York: Thames and Hudson, 1997.

  Results from FactBites:
 
Clam Dissection (744 words)
Clams are marine mollusks with two valves or shells.
Place a clam in a dissecting tray and identify the anterior and posterior ends of the clam as well as the dorsal, ventral, and lateral surfaces.
Also, use arrows on the clam diagram to trace the pathway of food as it travels to the clam's stomach.
  More results at FactBites »

 
 

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