tusk shell การใช้

• "' Dentaliida "'is one of the two orders of scaphopod mollusks, commonly known as elephant's tusk shells.
• ""'Dentalium " "'is a large genus of tooth shells or tusk shells, marine scaphopod molluscs in the family Dentaliidae.
• The tusk shells appear to be the only extant molluscs which completely lack the otherwise standard molluscan reno-pericardial apertures.
• As well as sea snail shells, shell jewelry also sometimes uses the shells of clams ( bivalves ) and tusk shells ( scaphopods ).
• Conchologists mainly deal with four molluscan orders : the gastropods ( snails ), bivalves ( clams ), Polyplacophora ( chitons ) and Scaphopoda ( tusk shells ).
• The Aleuts pierced holes around the rim of their ears with dentalium shells ( tooth shells or tusk shells ), bone, feathers, dried bird wings or skulls and / or amber.
• Dwelling on or in seabed ooze and often smaller than an aspirin tablet, they include tiny slugs, snails, crabs, bristle worms, ribbon worms, lamp shells, tusk shells, sea anemones, brittle stars and sea cucumbers.
• The "'mollusc "'( or "'mollusk "') "'shell "'is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which includes snails, clams, tusk shells, and several other classes.
• ""'Rhabdus rectius " "', also known as a "'straight tusk shell "', is a species of scaphopod, a small marine mollusc native to the coast of central California whose shell, like that of all the members of its order, resembles a tusk.
• Marine mollusk shells that are familiar to beachcombers and thus most likely to be called " seashells " are the shells of marine species of bivalves ( or clams ), gastropods ( or snails ), scaphopods ( or tusk shells ), polyplacophorans ( or chitons ), and cephalopods ( such as nautilus and spirula ).