像海星一样，海百合也有五条或者更多条长腕，还有一个由钙化层整齐排列在一起的外壳。
Like their sea star cousins, crinoids have five or more arms and askeleton constructed of calcified plates elaborately slotted together.
像海星一样，海百合也有五条或者更多条长腕，还有一个由钙化层整齐排列在一起的外壳。
Like their sea star cousins, crinoids have five or more arms and askeleton constructed of calcified plates elaborately slotted together.
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