Turbinella pyrum, common names the chank shell, sacred chank or chank, also known as the divine conch or referred to simply as a conch, is a species of very large sea snail with a gill and an operculum, a marine gastropod mollusk in the family Turbinellidae. This species occurs in the Indian Ocean.
Image: Turbinella pyrum 01
Image: Carved Conch
Hindu priest blowing a trumpet made out of a large shell of Turbinella pyrum, in Tirupati, India
A shankha has religious ritual importance in Hinduism.
Carved conches or Vamavarta shankhas, c. 11–12th century, Pala period, India: The leftmost one is carved with the image of Lakshmi and Vishnu, and has silver additions.
A shankha, 19th century
A Shankha (conch shell) with Vishnu emblem carved
Hindu priest blowing a shankha during a puja