背甲黑色，但是甲片边缘颜色偏浅，呈红或橘红色，看起来像是修剪过一般。

The carapace is black but the anterior scute margins are lighter, giving a trimmed effect.

youdao

背甲黑色，但是甲片边缘颜色偏浅，呈红或橘红色，看起来像是修剪过一般。

The carapace is black but the anterior scute margins are lighter, giving a trimmed effect.

youdao