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As well as being eaten by humans, the soft-shelled clam is relished by sea otters in the eastern Pacific Ocean, [citation needed] where the clam is an invasive species. In New England the soft-shell clam is preyed heavily upon by northern moon snails and invasive green crabs. They are also a favorite of gulls, which pull the clam from the sand ...
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 .
The taxonomic term Bivalvia was first used by Linnaeus in the 10th edition of his Systema Naturae in 1758 to refer to animals having shells composed of two valves. [3] More recently, the class was known as Pelecypoda, meaning "axe-foot" (based on the shape of the foot of the animal when extended).
Myidae, common name the softshell clams, ... Mya arenaria Linnaeus, 1758 – soft-shell clam; Mya baxteri Coan and Scott, 1997; Mya elegans (Eichwald, 1871)
Mussel (/ ˈ m ʌ s ə l /) is the common name used for members of several families of bivalve molluscs, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.
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Four views of a shell of the land snail Arianta arbustorum The giant clam (Tridacna gigas) is the largest extant species of bivalve. The mantle is visible between the open valves. A mollusc shell is formed, repaired and maintained by a part of the anatomy called the mantle. Any injuries to or abnormal conditions of the mantle are usually ...