no claws..
they have clubs instead of claws.. the clubs bash their victims
to death.. they hit with the impact of a .22 calibre bullet..
i like the other shrimp with such weapons too, the Pistol
Shrimp..
it uses a sound blast to kill its prey... the claw is evolved
into a "pistol"
Wah! A cowboy shrimp, most likely an Outlaw!

The clubs must be darn powerful to be able to crack open a
cockerel shell! 