You are admiring an outstanding specimen, a Cyphoma signatum (Pilsbry & McGinty, 1939) measuring 25.6mm and graded Gem...very unique "Ovulidae" form & a beautiful coloration is displayed on this exceptional specimen.  This beauty was diver collected at 10-12m on fan corals off Crooked Island, Bahamas.  A member of the Ovulidae family which are also referred to as "False Cowries" & are now becoming quite popular with collectors...an excellent addition for your collection.  Thank you for visiting our store this afternoon...great to see you again.