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Scallops swim through the water column by rapidly and repeatedly clapping (opening and closing) their valves. An interesting fact about scallops swimming in this manner is that they recover a greater percentage of the work (as defined by physics) performed through the elasticity of their abductin than do other bivalves (which are more sedentary ...
The hinge area in one valve of a scallop shell , showing the space for the internal ligament, known as the resilifer. In anatomy, a resilium is part of the shell of certain bivalve mollusks. It is an internal ligament, which holds the two valves together and is located in a pit or depression known as the resilifer.
Scallop (/ ˈ s k ɒ l ə p, ˈ s k æ l ə p /) [a] is a common name that encompasses various species of marine bivalve mollusks in the taxonomic family Pectinidae, the scallops.However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters.
Right valve from the Pliocene of Italy. This species of scallop lives in the North Sea, the English Channel, the Atlantic Ocean, and the Mediterranean Sea. [5] Mimachlamys varia is a shallow-living species, living up to about 100m in depth along coastal rocky areas. [5] It typically lives under boulders or among the holdfasts of seaweeds.
Scallops and file clams can swim by opening and closing their valves rapidly; water is ejected on either side of the hinge area and they move with the flapping valves in front. [92] Scallops have simple eyes around the margin of the mantle and can clap their valves shut to move sharply, hinge first, to escape from danger. [92]
A bivalve shell is the enveloping exoskeleton or shell of a bivalve mollusc, composed of two hinged halves or valves. The two half-shells, called the "right valve" and "left valve", are joined by a ligament and usually articulate with one another using structures known as "teeth" which are situated along the hinge line.
Pecten maximus, common names the great scallop, king scallop, St James shell or escallop, is a northeast Atlantic species of scallop, an edible saltwater clam, a marine bivalve mollusc in the family Pectinidae. This is the type species of the genus.
In the Indian River Lagoon in Florida, two other scallops occur: the bay scallop, (Argopecten irradians), which generally has a uniform gray to gray-brown coloration with distinct convexity of the right (lower) valve. The other is the rough scallop, (Aequipecten muscosus), which has unequal 'ears' and has sharp scales on the lower surface of ...
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