A conch (śaṅkha) is the shell of a large sea snail (Turbinella pyrum, Linn.), which can be found most frequently in the Indian Ocean. There are two varieties based on the direction of its coiling. The most common form coils to the right or clockwise when the aperture is turned upward. In Sanskrit terminology, this variety is called vāmāvarta, turning to the left, as the conch is viewed with the aperture downward. The very rare other form co…