The choice of N. gibbosulus in Mediterranean websites and N. kraussianus is South African web sites can be a purpose of their availability inside the vicinity of your websites, but isn't going to make clear why this genus was most well-liked about other shells of comparable dimensions and condition. A https://medium.com/@spoilmevintagediy/the-rich-history-of-beadwork-a-journey-through-the-ages-4e4fd2e474cf