| 单词 | Notostraca | 
| 释义 | Notostracaplural noun  No·tos·tra·ca    nəˈtästrəkə     : an order of small freshwater crustaceans (subclass Branchiopoda) having a shield-shaped carapace, sessile paired eyes, vestigial antennae, and 40 to 63 pairs of trunk appendages   see triops    notostracan   -kən   | 
	
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