The terminal segment is slightly curved towards dorso-innerly in S. y. tongbaiense, and sharply curved in S. y. shanxianense.

• 本文对长江华溪蟹种群遗传结构的研究结果提示，长江华溪蟹分化为两个亚种，一是雄性第1腹肢末节呈平直型的指明亚种；