腹足纲，中腹足目，蝾螺科。主产南非。贝壳大而厚重，螺塔低，螺层少，体层大，壳口大开。
学名：Turbo sarmaticus
英文名：South African Butterfly conch
This spepcies belongs to the family of Turbinidae,order of Mesogastropoda, distributed in South Africa. The shell is large and heavy, and less low spiral layer.The body layer is lage with big mouth opened.