单词 | Ypsilothuriidae |
释义 | Ypsilothuriidae [´ip·sǝ·lō`thu̇r·ǝ´dē] INVERTEBRATE ZOOLOGY A family of echinoderms in the order Dactylochirotida having 8-10 tentacles, a permanent spire on the plates of the test, and the body fusiform or U- shaped. |
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