Belongs to the family Sacred Snail, with the status of being the only species in the genus Syrinx. According to the latest classification criteria from Gondwana Nature Network, the Australian giant conch is close to a sacred conch, and the Australian giant conch is categorized as a sacred conch in the family Syrinx. The Australian Sacred Conch is a very large sea snail, up to 91 centimeters long and weighing up to 18 kilograms. It is the largest species of marine gastropod mollusc conchshells and the only species in the genus Syrinx.