This little fellow was sold as a blue-leg in a batch of blue-legs, however it seems to mostly be nocturnal and hides with its' shell-facing out in rock-crevices during the day. Its' growth rate has been alarming compared to the other hermits in the tank and as its' gotten bigger it certainly-doesn't resemble them much either. It has kind of yellow, off-brown-green (bronze?) stripes on white-legs with a mottled white-body and spotted-claw, and bright-orange antennae.
It doesn't really look similar to any species I'm familiar with.
So far I can't say I've noticed any signs of it being a bad crab for the system, but some snails have seemingly-been thinned out (hard to tell for certain) and I have been having issues with a few corals (and I like to know what's in my tank anyway >_<).