A semi-precious family and now one of the most popular ones. No members of the Strombidae are really small and all have an attractive shape and nice colours. Some of the Strombidae belong to the famous shells. Strombus listeri was only known by one specimen for more than 300 years until its habitat was discovered (Thailand) at the beginning of the seventies. At the beginning of the eighties Strombus oldi was rediscovered in Somalian waters. Rarest among known Strombidae is the small Strombus scalariformis from the Philippines.
For a list of genera and species:
http://www.marinespecies.org/aphia.php?p=taxdetails&id=23123