触手冠（总担） tentacle bearing ridge

互联网2013-11-14

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　　系拟软体动物包围口的触手环的基座。苔藓虫类之触手冠呈简单的环形，菷虫类的触手冠是以口为中心在左右形成复杂的螺旋。腕足纲中的有关节类（ Coptotbyris grayi 等）具支持触手冠的石灰质腕骨，附着于背壳。菷虫类的触手冠上具有称为总担器（ lophophoral organ）的功能不明的腺样构造。

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