Shank used in Vedic poojas is of the species Turbinella Pyrum. This is regularly available Shankha is called Vamavarti Shankha. It opens to the right and you can hold it with your right hand fingers inserted into the opening .According to the Vedic scriptures, the Shankha is one of the most auspicious objects that emerged from the sea during the Ksheera Sagara samudra manthan. Hence it is regarded as the brother of Goddess Lakshmi, the ruler of wealth. Most of the Gods and Goddesses hold the Shankha in their hands. Shankh is one auspicious nine objects of Kubera who is the Lord of wealth .