Fulton's Cowry (or Maltese Cross Cowry) ranks among the most famous and sought-after species of the family Cypraeidae.

In the 1980s, a collector bought the then world record size (slightly less than 80 mm) specimen for US$22,000.

In the mid-1980s, Russian trawlers began to find thousands of specimens along Mozambique.

The large number of specimens now available were first separated into two subspecies (pyriform fultoni fultoni and extremely calloused specimens named fultoni amorimi) and later four subspecies.

While the subdivision of the specimens from South African waters (fultoni) and Mozambican waters (amorimi) is also well supported by molecular data, there remains an uncertainty concerning the two taxa from shallower waters from the same general areas (deltoidea in South Africa and massieri in Mozambique).