This Mud Whelk shell is very distinctive. It is spiral in shape and resembles an ice cream cone (just like the other Mud Whelk Terebralia sp. This one however is larger). The shells are found on the surface of the mangrove mud, around the high tide mark and all through the year. When disturbed the animal retreats back inside the shell to reveal a purple lined inner shell-lining. To eat the animal inside the shell, first boil for about 10 minutes, or roast them on hot coals for about 5 minutes. Break it open by striking it at the . . .