For a number of reasons that have really nothing to do with shell collecting, but rather include climate changes, pollution and over collecting for shellcraft and decoration, some species are listed as endangered by the Convention on International Trade in Endangered Species of Fauna and Flora (CITES). Its commerce is regulated by this Convention.
Obviously, in full observance of appliable legislation, we do not deal with the protected species, as per CITES addenda.
For further information, click here: cites.org
Not only elephants are protected by Law… some species of molluscs are too!