Deep water flat spiny urchin collected in shrimp boat nets from 40-100 meters / 120-350 feet. Endemic to all the northern ocean just south of Puerto Penasco. Uncleaned, dried specimens.  The spines are very delicate and are broken off.  I have never recieved any intace spined specimens I am not offering any cleaned specimens at this time. The photos you see is approximately what you will recieve.  
I have multiple available