腹甲

随着乌龟的成长，背甲和腹甲间的连接处也在延伸。

As the turtle grows , the sutures between the bones of the carapace and plastron spread .

孵化温度显著影响孵出幼体的质量、背甲长和宽、腹甲长和宽、体高和尾长；

Incubation temperature had significant effects on the hatchling mass , carapace length and width , plastron length and width , body height , and tail length ;

占卜所用的材料主要是龟的腹甲和牛的肩胛骨。

The breastplate that the data that augur place uses basically is chelonian the bladebone with the ox.

甲骨文是指以龟腹甲和兽骨为材料，用刀刻写的文字。甲骨文是世界上最古老的书写文字符号之一。

Jiaguwen refers to shell and bone writing , they form one of the most ancient written languages in the world .

其生物学特性与罗氏沼虾和日本沼虾相比有许多相似之处，但在体色、额角、头胸甲和腹甲侧片等形态特征上差异十分明显。

Though there are many similarities in their biological characteristics , there are also many differences in body color , rostrum , carapace and sternite pleurons , which can be obviously identified .