Hermit crab ID please!

[Khazmodain]

My tank has been running for about a year and I haven't added any crabs since my original cleanup crew order nearly a year ago - all crabs ordered were blue legged hermits from Live Aquaria. I did have plenty of gorilla crab hitchhikers since my rock is from TBS. However, I have no clue how I got this mystery hermit. I've noticed a few of them lately and they have been taking over the shells of some of my larger snails. I managed to snag one of them and threw him into a small fuge in my frag tank for now. Any ideas on what this guy is?

Thanks!

 

[rekn]

how big is he?

 

[LeslieH]

Probably came in as juveniles in your live rock and have finally become big enough to come out into the open.

 

[Khazmodain]

I'll try to throw a blue leg in there and take a picture of them next to one another for a size comparison. These guys are siginficantly larger than the blue leg hermits I have...

http://www.liveaquaria.com/product/prod_display.cfm?c=497+501+623&pcatid=623