types of conchs
Queen conchs are a species threatened by overharvesting, and fishing for conchs is no longer allowed in Florida waters (see NOAA queen conch site for more information on conch fishing). Queen conchs are still harvested for their meat in other areas of the Caribbean, where they are not yet endangered.
1. Left handed conch - It is also called the conch of the opposite hand. Keeping its top portion towards oneself, its open portion stays towards the left hand of the bearer of the conch. The left hand conch is used to make sounds. It is considered the brother of goddess Lakshmi and much loved by Lord Vishnu.
Right handed Conch - The conch bent on the right hand is also called right handed conch and when its top faces the worshipper, its open portion faces the right hand of the worshipper. According to Hindu mythology, when the conch came up during the time of ocean-churning, Lord Vishnu had borne it in His right hand.