The choice of N. gibbosulus in Mediterranean internet sites and N. kraussianus is South African web pages is really a purpose of their availability from the vicinity of the web sites, but won't explain why this genus was chosen about other shells of comparable dimension and form. A comparison with https://chinesejadebeads63063.digiblogbox.com/56232017/the-ultimate-guide-to-the-rich-history-of-beadwork