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Pholad burrow trace fossils are not to be confused with specimens of the Trypanites ichnogenus, which are toothpick-sized masses of holes that characterize some hardgrounds. Trypanites probably result from a combination of mechanical abrasion and acid dissolution by the organism, whereas pholad borings are thought to be purely mechanical in origin.
The name "razor clam" is also used to refer to different species such as the Pacific razor clam (Siliqua patula) or Razor shell (Ensis magnus). Jackknife clams live in sand and mud and are found in intertidal or subtidal zones in bays and estuaries. Its streamlined shell and strong foot allow Jackknife clams to burrow quickly in wet sand.
Clam is a common name for several kinds of bivalve mollusc. The word is often applied only to those that are deemed edible and live as infauna, spending most of their lives halfway buried in the sand of the sea floor or riverbeds. Clams have two shells of equal size connected by two adductor muscles and have a powerful burrowing foot. [1]
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The shell of the clam ranges from 15 centimeters (6 in) to over 20 centimeters (8 in) in length, but the extremely long siphons make the clam itself much longer than this: the "shaft" or siphons alone can be 1 meter (3 ft 3 in) in length. The geoduck is the largest burrowing clam in the world. [3]
When the piddock dies and leaves an empty tubular burrow, other marine life such as sea anemone, crabs and other molluscs may use the burrow. Some species of Pholadidae may reach up to 18 cm (7″). Their coloration is typically white, though through consumption of red tide algae some may develop a pink coloration.
About two-thirds of a surf clam's shucked weight is viable for human consumption. [9] The meat of the clam is used as 'strips', chowder, and sushi. The "tongue" or foot of the clam is commercially valuable because it is cut into long strips which are breaded and fried and served as clam strips, first popularized by the Howard Johnson's ...
Cyrtopleura costata, or the angel wing clam, is a bivalve mollusc in the family Pholadidae.It is found in shallow parts of the northwest Atlantic and also in the North Sea of Scotland coastline and west coast of the Adriatic Sea by a remote area in the Marche region in central Italy, living in the seabed, where it digs its burrows on a very slow revolving movement for years through soft sand ...