Chitons/ˈkaɪtənz/ are small to large marine molluscs in the class Polyplacophora, formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
They are also sometimes known as sea cradles or "coat-of-mail shells", or more formally as loricates, polyplacophorans, and occasionally as polyplacophores.
近义、反义、联想词
近义词
n.
tunic, mollusk, mollusc, shellfish
联想词
tunic束腰外衣;mollusk软体动物;
英英词典
chiton n.
a woolen tunic worn by men and women in ancient Greece
primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates