鳖甲为鳖科动物鳖之背甲,今有用同科动物石咀[俗名]上甲伪充鳖甲出售。现将二种性状鉴别特征介绍如下。鳖甲:背甲近圆形或椭圆形,长宽几等长,约9～15cm。由颈甲一长条和肋骨8对嵌合而成,背部微隆起。外表面黄绿色或黑褐色,具网状皱纹并带光泽。两边8对肋骨呈扁齿状伸出,长0.6～1.6cm,宽约占肋骨的1/3～1/2,与肋骨紧贴,有时附连皮膜,头尾缘 The armor is the armor of the scorpion armor. This armor is used to sell the armored armor of the same family. The identification features of the two traits are described below. Armor: The carapace is nearly round or elliptical, with a length and width equal to about 9-15cm. It is made up of a pair of long necks and ribs, and the back is slightly raised. The outer surface is yellow-green or dark brown with wrinkles and luster. The two sides of the eight pairs of ribs are extended flat teeth, length 0.6 ~ 1.6cm, about 1/3 to 1/2 of the width of the ribs, close to the ribs, sometimes attached to the skin, head and tail edge