Big Bad Crab Question

[Beverly]

An algae and coraline algae eating crab hitchhiked in on some rock awhile back. Didn't notice this crab until a few weeks ago when I also noticed how little coraline algae was in the tank compared to our other tanks Saw it happily munching on everything in sight, the bad, bad crab

Anyway, tore down the tank today in search of that big crab and a couple of other smaller ones. Mananged to get the small ones, but only found the two claws from the big bad one. Don't know if we got the crab, though, because the pump we were using to blow the crabs out of their hiding places might have ground up the big crab

In the event we only got the crab's claws and it's still in the tank, what are the chances it will survive without claws? I'm assuming it will regrow the claws if it's still in the tank, and if it does, will it live long enough to regrow the claws? Geez, I hope not, but would like your opinions.

TIA.