语言选择:
免费网上英汉字典|3Dict

Thoracostraca

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Thoracostraca \Tho`ra*cos"tra*ca\, n. pl. [NL. See {Thorax}, and
   {Ostracoid}, a.] (Zo["o]l.)
   An extensive division of Crustacea, having a dorsal shield or
   carapec? ??niting all, or nearly all, of the thoracic somites
   to the head. It includes the crabs, lobsters, shrimps, and
   similar species.
依字母排序 : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z