在中国有文字可考的历史长河中,不同的地区和不同的民族大都使用过贝币,贝币独领风骚1800余年。贝币一般通长20毫米左右,宽、厚各10毫米左右,腹中有槽,槽的两边有齿纹。钱币学家称其为海贝、天然贝、贝化、宝贝、齿贝、货贝。如按贝币的形状、颜色、大小来划分,有100多个品种。货币始祖海贝货币是起一般等价物作用 In the long history of textual examination in China, most of the different regions and different ethnic groups use Bei, dominated by more than 1,800 years. General coins about 20 mm long, wide, thick about 10 mm, belly slot, groove on both sides of the tooth pattern. Numismatics called sea shellfish, natural shellfish, shellfish, baby, shellfish, shellfish. If the shellfish by the shape, color, size to divide, there are more than 100 varieties. Money ancestor Haeba currency is a general equivalent of the role