“Valvatina”的概念、定义、翻译、参考文献-科学参考

单词	Valvatina
释义	Valvatina [´val·vǝ`tīn·ǝ] ^{INVERTEBRATE ZOOLOGY} A suborder of echinoderms in the order Phanerozonida in which the upper marginals lie directly over, and not alternate with, the corresponding lower marginals.
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