Anyone ever see one of these before?

[Sharkattackmack]

Hey everyone, I was looking into someone else's tank today. We saw this walking around in his frag tank and wasn't sure what it was. Possibly an urchin of some kind?

 

[RedFrog211]

It’s a banded sea urchin! (Echinothrix calamaris)

 

[Sharkattackmack]

It’s a banded sea urchin! (Echinothrix calamaris)

Thank you!