Night collecting

I went collecting last night with a friend. We didn't find what he was looking for but we saw other cool things!!! We saw a huge eel, a barracuda, a bubble snail, and a Spanish dancer (below, by Keoki Steder)! He caught a kole tang and a thread fin butterflyfish for his tank. We also found an urchin test (skeleton) that was as big as a Costco sized orange (the big ones). But when I went to put it in my bag it crumbled in my hands :(