http://www.bing.com/images/search?q=colorful+nudibranch&view=detail&id=B50A4AF6797B3B9CE1D8620801D5A16D9882A0EA&first=91&FORM=IDFRIRA quote from this website ....
"There are over 3,000 known species of nudibranchs, and scientist estimate that only half have been discovered so far. The...