THE MICRO SHELL COLLECTION Many people specialize in micro mollusks: shells smaller than 10 mm.A binocular microscope with x 6, x 10, and up to x 60 is needed.

• 许多人擅长于收集微型贝壳：贝壳的尺寸小于10毫米，因此需要用倍数在乘6、乘10甚至乘60的双目显微镜来观察这类贝壳。