英语词汇“tusk shell”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

tusk shell

noun

A burrowing mollusc with a slender tusk-shaped shell, which is open at both ends and typically white, and a three-lobed foot.

Class Scaphopoda, in particular the genus Dentalium.

The Scaphopoda are a distinctive group of molluscs commonly known as the ‘tusk shells’ because their shells are conical and slightly curved to the dorsal side, making the shells look like tiny tusks....

There are approximately 900 species of Scaphopoda, commonly called tusk shells.
In bivalves, chitons, tusk shells and some snails, sperm and eggs are released into the water and fertilisation is external.

单词	tusk shell
释义	tusk shell noun A burrowing mollusc with a slender tusk-shaped shell, which is open at both ends and typically white, and a three-lobed foot. Class Scaphopoda, in particular the genus Dentalium. The Scaphopoda are a distinctive group of molluscs commonly known as the ‘tusk shells’ because their shells are conical and slightly curved to the dorsal side, making the shells look like tiny tusks.... There are approximately 900 species of Scaphopoda, commonly called tusk shells. In bivalves, chitons, tusk shells and some snails, sperm and eggs are released into the water and fertilisation is external.
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