螯足是节肢动物变形的步足。其倒数第2节的突起与末节形成钳，特称螯足。用来取食或御敌。
这种盲虾可能利用其夸张的前爪，或者螯足来抵御其他甲壳类动物。
The lobster likely USES its exaggerated claw, or cheliped, to defend against other crustaceans.
螯足不对称，较粗壮，第四对步足扁平似浆，适于游泳。
Chela sufficient asymmetry, brawnier, the 4th pair of conditions are sufficient compressed be like an oar, comfortable at swimming.
即使这项系统最初是为淡水日本绒螯蟹的研究设计，但是经过微小的改变可以应用到十足类其它的种类。
Although the system was originally designed for research with the fresh water mitten crab Eriocheir japonica, it can be used with other decapods with slight modifications.
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