You are admiring a favorite of Murex collectors worldwide, a Haustellum haustellum (Linne, 1758), w/operculum & measuring a very nice 130.5mm and graded F++/Gem...absolutely an incredible, most interesting & very unique form with a spectacular color pattern & markings displayed...truly, an amazing specimen.  This beauty was trawled at 100-150m from Manila Bay, Philippines.  A miraculous Muricidae species & always considered a treasure in any collection.  Thank you for visiting our store this afternoon...and an excellent choice, too.