(a) an excretory organ beneath the shell in the lower crustaceans; (b) the shell-secreting gland of a mollusc.
| 单词 | θ33666 | 
| 释义 | the world > animals > invertebrates > phylum Arthropoda > class Crustacea > 			[noun]		 > member of > parts of > excretory organ (1)		 shell-gland1877 (a) an excretory organ beneath the shell in the lower crustaceans; (b) the shell-secreting gland of a mollusc. | 
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