陆龟是生活在陆地上的食草动物，依靠背甲（carapace）和胸甲（plastron）来保护自己不受食肉动物的危害。它们可以长到很大的体型，比如加拉帕戈斯象龟（Chelonoidis nigra）可以有1.2米长，重数百千克。
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N the bony plate forming the ventral part of the shell of a tortoise or turtle 乌龟或海龟的胸甲
We discovered that the turtle remains consisted only of parts of the carapace and plastron (the shell and underbelly).
我们发现那具海龟尸体只剩下了部分背甲和腹甲。
Result:2 kinds of counterfeit turtle shell and 3 kinds of counterfeit tortoise plastron were found, and their morphological and DTA identification features were proposed.
结果：发现鳖甲伪品2种，龟甲伪品3种，并提出鳖甲、龟甲类药材的形态和差热鉴定特征。
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