Beside having similar properties to mollusc shell nuclei, the new pearl nuclei possess some advantages such as white color, strong luster, round shape and cheap cost.

这种珠核物化性质与现有贝、蚌壳珠核相近，具有颜色白、光泽强、外形圆和价格低廉等特点。

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Embankment shell variety, mostly for the intertidal zone or shallow seabed sediment mollusc species present health.

堤上贝壳种类丰富，多为潮间带或浅海泥沙海底软体动物的现生种属。

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Description of the medical mollusc egg, including egg shape, size, colour, egg shell.

指对医学软体动物卵的描述，包括卵的形状、大小、颜色、卵壳及其他特征。

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These are crustaceans that survive by dragging around a cast-off mollusc shell for protection and shelter.

ECONOMIST: Nomads at last

We also learn to eat the connective tissue between shell and mollusc, la membrane, an extra little treat like a mini scallop.

BBC: Postcard from Etang de Thau, France