tusk shell
Noun 1. A type of marine mollusk: A tusk shell is any of various small, burrowing mollusks that live in marine sediments. It is characterized by its long, slender, slightly curved, and tubular shell, which is open at both ends. The animal has a foot adapted for digging.
The term "tusk shell" is used to refer to the animal itself or to its distinctive shell. It is a common name for members of the class Scaphopoda. * The beachcomber found a delicate tusk shell washed up on the shore. * Under the microscope, the structure of the tusk shell's aperture was clearly visible.
- In scientific contexts: "Tusk shell" is the vernacular name for scaphopods. They are studied in malacology (the branch of invertebrate zoology dealing with mollusks) for their unique morphology and ecology.
- The researcher's paper focused on the burrowing behavior of the tusk shell.
- Scaphopod (n): The formal zoological class name for tusk shells.
- Scaphopods are a small class of exclusively marine mollusks.
- Tooth shell (n): A less common synonym for tusk shell, referring to the shell's resemblance to an animal's tusk or a tooth.
- Tooth shell (n)
The name "tusk shell" refers specifically to the physical appearance of the shell, which is long, curved, and hollow, resembling a miniature elephant's tusk or a canine tooth. The animal inside is not related to elephants or any vertebrate.
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any of various seashore mollusks having a tapering tubular shell open at each end and a foot pointed like a spade for burrowing
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