I have no info on this little crab other than I have never seen it before! I have one!! Don't know if I will ever get more!! We have had it for 10 days++ Seems nice. When I was photographing it - It grasped my fingers with its back claws - similar to the way a porcelain crab will hang on. It was not aggressive at all. I worked with it for approx 30 min & never saw its front claws which is an indicator as to its true intentions - BIG claws usually make me nervous - But Please buy at your own RISK.