Crab ID? (looked like a white stingray)....

[splash]

Was at my lfs today and in one of their tanks looked like what was some baby stingrays. they had a disc-shaped shell similar to the shape of a ray and had a long tail. They were an off-white color, anyone know kind of crab this is?

 

[manderx]

horseshoe crab?

 

[splash]

thanks matty, I did a search for horseshoe crab and that was it.

Thanks again!