Can anyone ID this crab

[Jaybird]

I finally got this guy. He has sharp, pointed claws with black ends. He's been in the tank for a long time now and I finally got him out. I'm pretty sure that he's responsible for some fish and coral losses.

Sadly, he lost a claw when I took him out of the tank but he seems to be doing alright in the sump. His shell is about just over an inch from side to side.

 

[Jaybird]

I've been Googling like crazy and think that it could be one of these:

Xanthias lamarcki Guam 463-23

or

http://1.bp.blogspot.com/-A3v_HDt35jk/TWapy6VJrsI/AAAAAAAACNI/MmfNd3uzhes/s1600/Xanthias_lamarcki.jpg

 

[joy13]

The black tips on the pincher claws means it probably isn't reef safe. Do you have a sump you can put it in? If someone has a mantis shrimp they could use it as natural food especially if it is a smasher mantis.

 

[mr_X]

leave him in the sump. he'll be fine down there. your right. it's definitely a Xanthid crab.

 

[Jaybird]

He an another xanthid are in the sump. I`m pretty sure that I`ve lost some zoas and fish to this guy. I have been trying to trap/capture it for a long time.